# Difference between revisions of "ParaView/Users Guide/List of filters"

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{{ParaView/ | |||

==AMR Connectivity== | |||

Fragment Identification | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the volume input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkNonOverlappingAMR | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''SelectMaterialArrays''' (SelectMaterialArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine fragments | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Volume Fraction Value''' (VolumeFractionSurfaceValue) | |||

| | |||

This property specifies the values at which to compute | |||

the isosurface. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''Resolve Blocks''' (Resolve Blocks) | |||

| | |||

Resolve the fragments between blocks. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Propagate Ghosts''' (Propagate Ghosts) | |||

| | |||

Propagate regionIds into the ghosts. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==AMR Contour== | |||

Iso surface cell array. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkCompositeDataSet | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''SelectMaterialArrays''' (SelectMaterialArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

contour filter will compute contour cells. | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Volume Fraction Value''' (VolumeFractionSurfaceValue) | |||

| | |||

This property specifies the values at which to compute | |||

the isosurface. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''Capping''' (Capping) | |||

| | |||

If this property is on, the the boundary of the data set | |||

is capped. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''DegenerateCells''' (DegenerateCells) | |||

| | |||

If this property is on, a transition mesh between levels | |||

is created. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MultiprocessCommunication''' (MultiprocessCommunication) | |||

| | |||

If this property is off, each process executes | |||

independantly. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''SkipGhostCopy''' (SkipGhostCopy) | |||

| | |||

A simple test to see if ghost values are already set | |||

properly. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Triangulate''' (Triangulate) | |||

| | |||

Use triangles instead of quads on capping | |||

surfaces. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MergePoints''' (MergePoints) | |||

| | |||

Use more memory to merge points on the boundaries of | |||

blocks. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==AMR CutPlane== | |||

Planar Cut of an AMR grid datasetThis filter | |||

creates a cut-plane of the | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input for this | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkOverlappingAMR | |||

|- | |||

|'''UseNativeCutter''' (UseNativeCutter) | |||

| | |||

This property specifies whether the ParaView's generic | |||

dataset cutter is used instead of the specialized AMR | |||

cutter. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''LevelOfResolution''' (LevelOfResolution) | |||

| | |||

Set maximum slice resolution. | |||

| | |||

0 | |||

| | |||

|- | |||

|'''Center''' (Center) | |||

| | |||

| | |||

0.5 0.5 0.5 | |||

| | |||

|- | |||

|'''Normal''' (Normal) | |||

| | |||

| | |||

0 0 1 | |||

| | |||

|} | |||

==AMR Dual Clip== | |||

Clip with scalars. Tetrahedra. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkCompositeDataSet | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''SelectMaterialArrays''' (SelectMaterialArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

clip filter will compute clipped cells. | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Volume Fraction Value''' (VolumeFractionSurfaceValue) | |||

| | |||

This property specifies the values at which to compute | |||

the isosurface. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''InternalDecimation''' (InternalDecimation) | |||

| | |||

If this property is on, internal tetrahedra are | |||

decimation | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MultiprocessCommunication''' (MultiprocessCommunication) | |||

| | |||

If this property is off, each process executes | |||

independantly. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MergePoints''' (MergePoints) | |||

| | |||

Use more memory to merge points on the boundaries of | |||

blocks. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==AMR Fragment Integration== | |||

Fragment Integration | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the volume input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkNonOverlappingAMR | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''SelectMaterialArrays''' (SelectMaterialArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine fragments | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectMassArrays''' (SelectMassArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine fragment mass | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectVolumeWeightedArrays''' (SelectVolumeWeightedArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine volume weighted average values | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectMassWeightedArrays''' (SelectMassWeightedArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine mass weighted average values | |||

| | |||

| | |||

An array of scalars is required. | |||

|} | |||

==AMR Fragments Filter== | |||

Meta Fragment filterCombines the running of | |||

AMRContour, AMRFragmentIntegration, AMRDualContour and ExtractCTHParts | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the volume input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkNonOverlappingAMR | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''SelectMaterialArrays''' (SelectMaterialArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine fragments | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectMassArrays''' (SelectMassArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine fragment mass | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectVolumeWeightedArrays''' (SelectVolumeWeightedArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine volume weighted average values | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''SelectMassWeightedArrays''' (SelectMassWeightedArrays) | |||

| | |||

This property specifies the cell arrays from which the | |||

analysis will determine mass weighted average values | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Volume Fraction Value''' (VolumeFractionSurfaceValue) | |||

| | |||

This property specifies the values at which to compute | |||

the isosurface. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''Extract Surface''' (Extract Surface) | |||

| | |||

Whether or not to extract a surface from this data | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Use Watertight Surface''' (Use Watertight Surface) | |||

| | |||

Whether the extracted surface should be watertight or not | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Integrate Fragments''' (Integrate Fragments) | |||

| | |||

Whether or not to integrate fragments in this data | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Add Field Arrays== | |||

Reads arrays from a file and adds them to the input data object. | |||

Takes in an input data object and a filename. Opens the file | |||

and adds any arrays it sees there to the input data. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

The input. | |||

| | |||

| | |||

|- | |||

|'''FileName''' (FileName) | |||

| | |||

This property specifies the file to read to get arrays | |||

| | |||

| | |||

The value(s) must be a filename (or filenames). | |||

|} | |||

==Angular Periodic Filter== | |||

This filter generate a periodic multiblock dataset.This filter generate a periodic | |||

multiblock dataset | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Periodic filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''BlockIndices''' (BlockIndices) | |||

| | |||

This property lists the ids of the blocks to make periodic | |||

from the input multiblock dataset. | |||

| | |||

| | |||

|- | |||

|'''IterationMode''' (IterationMode) | |||

| | |||

This property specifies the mode of iteration, either a user-provided number | |||

of periods, or the maximum number of periods to rotate to 360°. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Manual (0) | |||

* Maximum (1) | |||

|- | |||

|'''NumberOfPeriods''' (NumberOfPeriods) | |||

| | |||

This property specifies the number of iteration | |||

| | |||

3 | |||

| | |||

|- | |||

|'''RotationMode''' (RotationMode) | |||

| | |||

This property specifies the mode of rotation, either from a user provided | |||

angle or from an array in the data. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Direct Angle (0) | |||

* Array Value (1) | |||

|- | |||

|'''RotationAngle''' (RotationAngle) | |||

| | |||

Rotation angle in degree. | |||

| | |||

10 | |||

| | |||

|- | |||

|'''RotationArrayName''' (RotationArrayName) | |||

| | |||

Field array name that contains the rotation angle in radian. | |||

| | |||

periodic angle | |||

| | |||

|- | |||

|'''Axis''' (Axis) | |||

| | |||

This property specifies the axis of rotation | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Axis X (0) | |||

* Axis Y (1) | |||

* Axis Z (2) | |||

|- | |||

|'''Center''' (Center) | |||

| | |||

This property specifies the 3D coordinates for the | |||

center of the rotation. | |||

| | |||

0.0 0.0 0.0 | |||

| | |||

|} | |||

==Annotate Attribute Data== | |||

Adds a text annotation to a Rander View | |||

This filter can be used to add a text annotation to a Render View (or | |||

similar) using a tuple from any attribute array (point/cell/field/row | |||

etc.) from a specific rank (when running in parallel). Use **ArrayName** | |||

property to select the array association and array name. Use | |||

**ElementId* property to set the element number to extract the value to | |||

label with. When running on multiple ranks, use **ProcessId** property | |||

to select the rank of interest. The **Prefix** property can be used to | |||

specify a string that will be used as the prefix to the generated | |||

annotation text. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input of the filter. To avoid the complications/confusion when identifying | |||

elements in a composite dataset, this filter doesn't support composite datasets | |||

currently. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

* vtkTable | |||

The dataset must contain a field array (any) | |||

with 1 component(s). | |||

|- | |||

|'''ArrayAssociation''' (ArrayAssociation) | |||

| | |||

Select the attribute to use to popular array names from. | |||

| | |||

2 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Point Data (0) | |||

* Cell Data (1) | |||

* Field Data (2) | |||

* Row Data (6) | |||

|- | |||

|'''ArrayName''' (ArrayName) | |||

| | |||

Choose arrays that is going to be displayed | |||

| | |||

| | |||

|- | |||

|'''ElementId''' (ElementId) | |||

| | |||

Set the element index to annotate with. | |||

| | |||

0 | |||

| | |||

|- | |||

|'''ProcessId''' (ProcessId) | |||

| | |||

Set the process rank to extract element from. | |||

| | |||

0 | |||

| | |||

|- | |||

|'''Prefix''' (Prefix) | |||

| | |||

Text that is used as a prefix to the field value | |||

| | |||

Value is: | |||

| | |||

|} | |||

==Annotate Global Data== | |||

Filter for annotating with global data (designed for ExodusII reader) | |||

Annotate Global Data provides a simpler API for creating text | |||

annotations using vtkPythonAnnotationFilter. Instead of users | |||

specifying the annotation expression, this filter determines the | |||

expression based on the array selected by limiting the scope of the | |||

functionality. This filter only allows the user to annotate using | |||

"global-data" aka field data and specify the string prefix to use. If | |||

the field array chosen has as many elements as number of timesteps, | |||

the array is assumed to be "temporal" and indexed using the current | |||

timestep. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input of the filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (none) | |||

with 1 component(s). | |||

|- | |||

|'''SelectArrays''' (SelectArrays) | |||

| | |||

Choose arrays that is going to be | |||

displayed | |||

| | |||

| | |||

|- | |||

|'''Prefix''' (Prefix) | |||

| | |||

Text that is used as a prefix to the field | |||

value | |||

| | |||

Value is: | |||

| | |||

|- | |||

|'''Suffix''' (Suffix) | |||

| | |||

Text that is used as a suffix to the field | |||

value | |||

| | |||

| | |||

|} | |||

==Annotate Time Filter== | |||

Shows input data time as text annnotation in the view.The Annotate Time | |||

filter can be used to show the data time in a text | |||

annotation. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset for which to | |||

display the time. | |||

| | |||

| | |||

|- | |||

|'''Format''' (Format) | |||

| | |||

The value of this property is a format string used to | |||

display the input time. The format string is specified using printf | |||

style. | |||

| | |||

Time: %f | |||

| | |||

|- | |||

|'''Shift''' (Shift) | |||

| | |||

The amount of time the input is shifted (after | |||

scaling). | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''Scale''' (Scale) | |||

| | |||

The factor by which the input time is | |||

scaled. | |||

| | |||

1.0 | |||

| | |||

|} | |||

==Append Attributes== | |||

Copies geometry from first input. Puts all of the arrays into the output. | |||

The Append Attributes filter takes multiple input data | |||

sets with the same geometry and merges their point and | |||

cell attributes to produce a single output containing all | |||

the point and cell attributes of the inputs. Any inputs | |||

without the same number of points and cells as the first | |||

input are ignored. The input data sets must already be | |||

collected together, either as a result of a reader that | |||

loads multiple parts (e.g., EnSight reader) or because the | |||

Group Parts filter has been run to form a collection of | |||

data sets. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Append | |||

Attributes filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|} | |||

==Append Datasets== | |||

Takes an input of multiple datasets and output has only one unstructured grid.The Append | |||

Datasets filter operates on multiple data sets of any type | |||

(polygonal, structured, etc.). It merges their geometry | |||

into a single data set. Only the point and cell attributes | |||

that all of the input data sets have in common will appear | |||

in the output. The input data sets must already be | |||

collected together, either as a result of a reader that | |||

loads multiple parts (e.g., EnSight reader) or because the | |||

Group Parts filter has been run to form a collection of | |||

data sets. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the datasets to be merged into a | |||

single dataset by the Append Datasets filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|} | |||

==Append Geometry== | |||

Takes an input of multiple poly data parts and output has only one part.The Append | |||

Geometry filter operates on multiple polygonal data sets. | |||

It merges their geometry into a single data set. Only the | |||

point and cell attributes that all of the input data sets | |||

have in common will appear in the output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Append Geometry | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|} | |||

==Block Scalars== | |||

The Level Scalars filter uses colors to show levels of a multiblock dataset.The Level | |||

Scalars filter uses colors to show levels of a multiblock | |||

dataset. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Level Scalars | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkMultiBlockDataSet | |||

|} | |||

==CTH Surface== | |||

Not finished yet. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkCompositeDataSet | |||

|} | |||

==CacheKeeper== | |||

vtkPVCacheKeeper manages data cache for flip book | |||

animations. When caching is disabled, this simply acts as a pass through | |||

filter. When caching is enabled, is the current time step has been | |||

previously cached then this filter shuts the update request, otherwise | |||

propagates the update and then cache the result for later use. The | |||

current time step is set using SetCacheTime(). | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Update Suppressor | |||

filter. | |||

| | |||

| | |||

|- | |||

|'''CacheTime''' (CacheTime) | |||

| | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''CachingEnabled''' (CachingEnabled) | |||

| | |||

Toggle whether the caching is enabled. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Calculator== | |||

Compute new attribute arrays as function of existing arrays. | |||

The Calculator filter computes a new data array or new point | |||

coordinates as a function of existing scalar or vector arrays. If | |||

point-centered arrays are used in the computation of a new data array, | |||

the resulting array will also be point-centered. Similarly, | |||

computations using cell-centered arrays will produce a new | |||

cell-centered array. If the function is computing point coordinates, | |||

the result of the function must be a three-component vector. | |||

The Calculator interface operates similarly to a scientific | |||

calculator. In creating the function to evaluate, the standard order | |||

of operations applies. Each of the calculator functions is described | |||

below. Unless otherwise noted, enclose the operand in parentheses | |||

using the ( and ) buttons. | |||

- Clear: Erase the current function (displayed in the read-only text | |||

box above the calculator buttons). | |||

- /: Divide one scalar by another. The operands for this function are | |||

not required to be enclosed in parentheses. | |||

- *: Multiply two scalars, or multiply a vector by a scalar (scalar multiple). | |||

The operands for this function are not required to be enclosed in parentheses. | |||

- -: Negate a scalar or vector (unary minus), or subtract one scalar or vector | |||

from another. The operands for this function are not required to be enclosed | |||

in parentheses. | |||

- +: Add two scalars or two vectors. The operands for this function are not | |||

required to be enclosed in parentheses. | |||

- sin: Compute the sine of a scalar. cos: Compute the cosine of a scalar. | |||

- tan: Compute the tangent of a scalar. | |||

- asin: Compute the arcsine of a scalar. | |||

- acos: Compute the arccosine of a scalar. | |||

- atan: Compute the arctangent of a scalar. | |||

- sinh: Compute the hyperbolic sine of a scalar. | |||

- cosh: Compute the hyperbolic cosine of a scalar. | |||

- tanh: Compute the hyperbolic tangent of a scalar. | |||

- min: Compute minimum of two scalars. | |||

- max: Compute maximum of two scalars. | |||

- x^y: Raise one scalar to the power of another scalar. The operands for | |||

this function are not required to be enclosed in parentheses. | |||

- sqrt: Compute the square root of a scalar. | |||

- e^x: Raise e to the power of a scalar. | |||

- log: Compute the logarithm of a scalar (deprecated. same as log10). | |||

- log10: Compute the logarithm of a scalar to the base 10. | |||

- ln: Compute the logarithm of a scalar to the base 'e'. | |||

- ceil: Compute the ceiling of a scalar. floor: Compute the floor of a scalar. | |||

- abs: Compute the absolute value of a scalar. | |||

- v1.v2: Compute the dot product of two vectors. The operands for this | |||

function are not required to be enclosed in parentheses. | |||

- cross: Compute cross product of two vectors. | |||

- mag: Compute the magnitude of a vector. | |||

- norm: Normalize a vector. | |||

The operands are described below. The digits 0 - 9 and the decimal | |||

point are used to enter constant scalar values. **iHat**, **jHat**, | |||

and **kHat** are vector constants representing unit vectors in the X, | |||

Y, and Z directions, respectively. The scalars menu lists the names of | |||

the scalar arrays and the components of the vector arrays of either | |||

the point-centered or cell-centered data. The vectors menu lists the | |||

names of the point-centered or cell-centered vector arrays. The | |||

function will be computed for each point (or cell) using the scalar or | |||

vector value of the array at that point (or cell). The filter operates | |||

on any type of data set, but the input data set must have at least one | |||

scalar or vector array. The arrays can be either point-centered or | |||

cell-centered. The Calculator filter's output is of the same data set | |||

type as the input. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset to the | |||

Calculator filter. The scalar and vector variables may be chosen from | |||

this dataset's arrays. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array () | |||

|- | |||

|'''AttributeMode''' (AttributeMode) | |||

| | |||

This property determines whether the computation is to | |||

be performed on point-centered or cell-centered data. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Point Data (1) | |||

* Cell Data (2) | |||

|- | |||

|'''CoordinateResults''' (CoordinateResults) | |||

| | |||

The value of this property determines whether the | |||

results of this computation should be used as point coordinates or as a | |||

new array. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ResultNormals''' (ResultNormals) | |||

| | |||

Set whether to output results as point/cell | |||

normals. Outputing as normals is only valid with vector | |||

results. Point or cell normals are selected using | |||

AttributeMode. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ResultTCoords''' (ResultTCoords) | |||

| | |||

Set whether to output results as point/cell | |||

texture coordinates. Point or cell texture coordinates are | |||

selected using AttributeMode. 2-component texture coordinates | |||

cannot be generated at this time. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ResultArrayName''' (ResultArrayName) | |||

| | |||

This property contains the name for the output array | |||

containing the result of this computation. | |||

| | |||

Result | |||

| | |||

|- | |||

|'''Function''' (Function) | |||

| | |||

This property contains the equation for computing the new | |||

array. | |||

| | |||

| | |||

|- | |||

|'''Replace Invalid Results''' (ReplaceInvalidValues) | |||

| | |||

This property determines whether invalid values in the | |||

computation will be replaced with a specific value. (See the | |||

ReplacementValue property.) | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ReplacementValue''' (ReplacementValue) | |||

| | |||

If invalid values in the computation are to be replaced | |||

with another value, this property contains that value. | |||

| | |||

0.0 | |||

| | |||

|} | |||

==Cell Centers== | |||

Create a point (no geometry) at the center of each input cell.The Cell Centers | |||

filter places a point at the center of each cell in the | |||

input data set. The center computed is the parametric | |||

center of the cell, not necessarily the geometric or | |||

bounding box center. The cell attributes of the input will | |||

be associated with these newly created points of the | |||

output. You have the option of creating a vertex cell per | |||

point in the outpuut. This is useful because vertex cells | |||

are rendered, but points are not. The points themselves | |||

could be used for placing glyphs (using the Glyph filter). | |||

The Cell Centers filter takes any type of data set as | |||

input and produces a polygonal data set as | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Cell Centers | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''VertexCells''' (VertexCells) | |||

| | |||

If set to 1, a vertex cell will be generated per point | |||

in the output. Otherwise only points will be generated. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Cell Data to Point Data== | |||

Create point attributes by averaging cell attributes.The Cell | |||

Data to Point Data filter averages the values of the cell | |||

attributes of the cells surrounding a point to compute | |||

point attributes. The Cell Data to Point Data filter | |||

operates on any type of data set, and the output data set | |||

is of the same type as the input. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Cell Data to | |||

Point Data filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (cell) | |||

|- | |||

|'''PassCellData''' (PassCellData) | |||

| | |||

If this property is set to 1, then the input cell data | |||

is passed through to the output; otherwise, only the generated point | |||

data will be available in the output. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''PieceInvariant''' (PieceInvariant) | |||

| | |||

If the value of this property is set to 1, this filter | |||

will request ghost levels so that the values at boundary points match | |||

across processes. NOTE: Enabling this option might cause multiple | |||

executions of the data source because more information is needed to | |||

remove internal surfaces. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Clean== | |||

Merge coincident points if they do not meet a feature edge criteria.The Clean filter | |||

takes polygonal data as input and generates polygonal data | |||

as output. This filter can merge duplicate points, remove | |||

unused points, and transform degenerate cells into their | |||

appropriate forms (e.g., a triangle is converted into a | |||

line if two of its points are merged). | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Clean filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|- | |||

|'''PieceInvariant''' (PieceInvariant) | |||

| | |||

If this property is set to 1, the whole data set will be | |||

processed at once so that cleaning the data set always produces the | |||

same results. If it is set to 0, the data set can be processed one | |||

piece at a time, so it is not necessary for the entire data set to fit | |||

into memory; however the results are not guaranteed to be the same as | |||

they would be if the Piece invariant option was on. Setting this option | |||

to 0 may produce seams in the output dataset when ParaView is run in | |||

parallel. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Tolerance''' (Tolerance) | |||

| | |||

If merging nearby points (see PointMerging property) and | |||

not using absolute tolerance (see ToleranceIsAbsolute property), this | |||

property specifies the tolerance for performing merging as a fraction | |||

of the length of the diagonal of the bounding box of the input data | |||

set. | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''AbsoluteTolerance''' (AbsoluteTolerance) | |||

| | |||

If merging nearby points (see PointMerging property) and | |||

using absolute tolerance (see ToleranceIsAbsolute property), this | |||

property specifies the tolerance for performing merging in the spatial | |||

units of the input data set. | |||

| | |||

1.0 | |||

| | |||

|- | |||

|'''ToleranceIsAbsolute''' (ToleranceIsAbsolute) | |||

| | |||

This property determines whether to use absolute or | |||

relative (a percentage of the bounding box) tolerance when performing | |||

point merging. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ConvertLinesToPoints''' (ConvertLinesToPoints) | |||

| | |||

If this property is set to 1, degenerate lines (a "line" | |||

whose endpoints are at the same spatial location) will be converted to | |||

points. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ConvertPolysToLines''' (ConvertPolysToLines) | |||

| | |||

If this property is set to 1, degenerate polygons (a | |||

"polygon" with only two distinct point coordinates) will be converted | |||

to lines. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ConvertStripsToPolys''' (ConvertStripsToPolys) | |||

| | |||

If this property is set to 1, degenerate triangle strips | |||

(a triangle "strip" containing only one triangle) will be converted to | |||

triangles. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''PointMerging''' (PointMerging) | |||

| | |||

If this property is set to 1, then points will be merged | |||

if they are within the specified Tolerance or AbsoluteTolerance (see | |||

the Tolerance and AbsoluteTolerance propertys), depending on the value | |||

of the ToleranceIsAbsolute property. (See the ToleranceIsAbsolute | |||

property.) If this property is set to 0, points will not be | |||

merged. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Clean Cells to Grid== | |||

This filter merges cells and converts the data set to unstructured grid.Merges degenerate cells. Assumes | |||

the input grid does not contain duplicate points. You may | |||

want to run vtkCleanUnstructuredGrid first to assert it. | |||

If duplicated cells are found they are removed in the | |||

output. The filter also handles the case, where a cell may | |||

contain degenerate nodes (i.e. one and the same node is | |||

referenced by a cell more than once). | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Clean Cells to | |||

Grid filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkUnstructuredGrid | |||

|} | |||

==Clean to Grid== | |||

This filter merges points and converts the data set to unstructured grid.The Clean to Grid filter merges | |||

points that are exactly coincident. It also converts the | |||

data set to an unstructured grid. You may wish to do this | |||

if you want to apply a filter to your data set that is | |||

available for unstructured grids but not for the initial | |||

type of your data set (e.g., applying warp vector to | |||

volumetric data). The Clean to Grid filter operates on any | |||

type of data set. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Clean to Grid | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|} | |||

==ClientServerMoveData== | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Client Server Move Data | |||

filter. | |||

| | |||

| | |||

|- | |||

|'''OutputDataType''' (OutputDataType) | |||

| | |||

| | |||

0 | |||

| | |||

|- | |||

|'''WholeExtent''' (WholeExtent) | |||

| | |||

| | |||

0 -1 0 -1 0 -1 | |||

| | |||

|} | |||

==Clip== | |||

Clip with an implicit plane. Clipping does not reduce the dimensionality of the data set. The output data type of this filter is always an unstructured grid.The Clip filter | |||

cuts away a portion of the input data set using an | |||

implicit plane. This filter operates on all types of data | |||

sets, and it returns unstructured grid data on | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the dataset on which the Clip | |||

filter will operate. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array () | |||

with 1 component(s). | |||

|- | |||

|'''Clip Type''' (ClipFunction) | |||

| | |||

This property specifies the parameters of the clip | |||

function (an implicit plane) used to clip the dataset. | |||

| | |||

| | |||

The value can be one of the following: | |||

* Plane (implicit_functions) | |||

* Box (implicit_functions) | |||

* Sphere (implicit_functions) | |||

* Cylinder (implicit_functions) | |||

* Scalar (implicit_functions) | |||

|- | |||

|'''InputBounds''' (InputBounds) | |||

| | |||

| | |||

| | |||

|- | |||

|'''Scalars''' (SelectInputScalars) | |||

| | |||

If clipping with scalars, this property specifies the | |||

name of the scalar array on which to perform the clip | |||

operation. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''Value''' (Value) | |||

| | |||

If clipping with scalars, this property sets the scalar | |||

value about which to clip the dataset based on the scalar array chosen. | |||

(See SelectInputScalars.) If clipping with a clip function, this | |||

property specifies an offset from the clip function to use in the | |||

clipping operation. Neither functionality is currently available in | |||

ParaView's user interface. | |||

| | |||

0.0 | |||

| | |||

The value must lie within the range of the selected data array. | |||

|- | |||

|'''InsideOut''' (InsideOut) | |||

| | |||

If this property is set to 0, the clip filter will | |||

return that portion of the dataset that lies within the clip function. | |||

If set to 1, the portions of the dataset that lie outside the clip | |||

function will be returned instead. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''UseValueAsOffset''' (UseValueAsOffset) | |||

| | |||

If UseValueAsOffset is true, Value is used as an offset | |||

parameter to the implicit function. Otherwise, Value is used only when | |||

clipping using a scalar array. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Crinkle clip''' (PreserveInputCells) | |||

| | |||

This parameter controls whether to extract entire cells | |||

in the given region or clip those cells so all of the output one stay | |||

only inside that region. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Clip Closed Surface== | |||

Clip a polygonal dataset with a plane to produce closed surfaces | |||

This clip filter cuts away a portion of the input polygonal dataset using | |||

a plane to generate a new polygonal dataset. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the dataset on which the Clip | |||

filter will operate. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

|- | |||

|'''Clipping Plane''' (ClippingPlane) | |||

| | |||

This property specifies the parameters of the clipping | |||

plane used to clip the polygonal data. | |||

| | |||

| | |||

The value can be one of the following: | |||

* Plane (implicit_functions) | |||

|- | |||

|'''GenerateFaces''' (GenerateFaces) | |||

| | |||

Generate polygonal faces in the output. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''GenerateOutline''' (GenerateOutline) | |||

| | |||

Generate clipping outlines in the output wherever an | |||

input face is cut by the clipping plane. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Generate Cell Origins''' (ScalarMode) | |||

| | |||

Generate (cell) data for coloring purposes such that the | |||

newly generated cells (including capping faces and clipping outlines) | |||

can be distinguished from the input cells. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* None (0) | |||

* Color (1) | |||

* Label (2) | |||

|- | |||

|'''InsideOut''' (InsideOut) | |||

| | |||

If this flag is turned off, the clipper will return the | |||

portion of the data that lies within the clipping plane. Otherwise, the | |||

clipper will return the portion of the data that lies outside the | |||

clipping plane. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Clipping Tolerance''' (Tolerance) | |||

| | |||

Specify the tolerance for creating new points. A small | |||

value might incur degenerate triangles. | |||

| | |||

0.000001 | |||

| | |||

|- | |||

|'''Base Color''' (BaseColor) | |||

| | |||

Specify the color for the faces from the | |||

input. | |||

| | |||

0.10 0.10 1.00 | |||

| | |||

|- | |||

|'''Clip Color''' (ClipColor) | |||

| | |||

Specifiy the color for the capping faces (generated on | |||

the clipping interface). | |||

| | |||

1.00 0.11 0.10 | |||

| | |||

|} | |||

==Clip Generic Dataset== | |||

Clip with an implicit plane, sphere or with scalars. Clipping does not reduce the dimensionality of the data set. This output data type of this filter is always an unstructured grid. | |||

The Generic Clip filter cuts away a portion of the input | |||

data set using a plane, a sphere, a box, or a scalar | |||

value. The menu in the Clip Function portion of the | |||

interface allows the user to select which implicit | |||

function to use or whether to clip using a scalar value. | |||

Making this selection loads the appropriate user | |||

interface. For the implicit functions, the appropriate 3D | |||

widget (plane, sphere, or box) is also displayed. The use | |||

of these 3D widgets, including their user interface | |||

components, is discussed in section 7.4. If an implicit | |||

function is selected, the clip filter returns that portion | |||

of the input data set that lies inside the function. If | |||

Scalars is selected, then the user must specify a scalar | |||

array to clip according to. The clip filter will return | |||

the portions of the data set whose value in the selected | |||

Scalars array is larger than the Clip value. Regardless of | |||

the selection from the Clip Function menu, if the Inside | |||

Out option is checked, the opposite portions of the data | |||

set will be returned. This filter operates on all types of | |||

data sets, and it returns unstructured grid data on | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Generic Clip | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkGenericDataSet | |||

The dataset must contain a field array (point) | |||

|- | |||

|'''Clip Type''' (ClipFunction) | |||

| | |||

Set the parameters of the clip function. | |||

| | |||

| | |||

The value can be one of the following: | |||

* Plane (implicit_functions) | |||

* Box (implicit_functions) | |||

* Sphere (implicit_functions) | |||

* Scalar (implicit_functions) | |||

|- | |||

|'''InputBounds''' (InputBounds) | |||

| | |||

| | |||

| | |||

|- | |||

|'''Scalars''' (SelectInputScalars) | |||

| | |||

If clipping with scalars, this property specifies the | |||

name of the scalar array on which to perform the clip | |||

operation. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''InsideOut''' (InsideOut) | |||

| | |||

Choose which portion of the dataset should be clipped | |||

away. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Value''' (Value) | |||

| | |||

If clipping with a scalar array, choose the clipping | |||

value. | |||

| | |||

0.0 | |||

| | |||

The value must lie within the range of the selected data array. | |||

|} | |||

==Color By Array== | |||

This filter generate a color based image data based on a selected data scalar | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkImageData | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

|- | |||

|'''LookupTable''' (LookupTable) | |||

| | |||

| | |||

| | |||

|- | |||

|'''Color By''' (SelectInputScalars) | |||

| | |||

This property specifies the name of the scalar array | |||

from which we will color by. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''RGBA NaN Color''' (NaNColor) | |||

| | |||

| | |||

0 0 0 255 | |||

| | |||

|- | |||

|'''OutputFormat''' (OutputFormat) | |||

| | |||

| | |||

3 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Luminance (1) | |||

* Luminance Alpha (2) | |||

* RGB (3) | |||

* RGBA (4) | |||

|} | |||

==Compute Derivatives== | |||

This filter computes derivatives of scalars and vectors. | |||

CellDerivatives is a filter that computes derivatives of | |||

scalars and vectors at the center of cells. You can choose | |||

to generate different output including the scalar gradient | |||

(a vector), computed tensor vorticity (a vector), gradient | |||

of input vectors (a tensor), and strain matrix of the | |||

input vectors (a tensor); or you may choose to pass data | |||

through to the output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

The dataset must contain a field array (point) | |||

with 3 component(s). | |||

|- | |||

|'''Scalars''' (SelectInputScalars) | |||

| | |||

This property indicates the name of the scalar array to | |||

differentiate. | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Vectors''' (SelectInputVectors) | |||

| | |||

This property indicates the name of the vector array to | |||

differentiate. | |||

| | |||

1 | |||

| | |||

An array of vectors is required. | |||

|- | |||

|'''OutputVectorType''' (OutputVectorType) | |||

| | |||

This property Controls how the filter works to generate | |||

vector cell data. You can choose to compute the gradient of the input | |||

scalars, or extract the vorticity of the computed vector gradient | |||

tensor. By default, the filter will take the gradient of the input | |||

scalar data. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Nothing (0) | |||

* Scalar Gradient (1) | |||

* Vorticity (2) | |||

|- | |||

|'''OutputTensorType''' (OutputTensorType) | |||

| | |||

This property controls how the filter works to generate | |||

tensor cell data. You can choose to compute the gradient of the input | |||

vectors, or compute the strain tensor of the vector gradient tensor. By | |||

default, the filter will take the gradient of the vector data to | |||

construct a tensor. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Nothing (0) | |||

* Vector Gradient (1) | |||

* Strain (2) | |||

|} | |||

==Compute Quartiles== | |||

Compute the quartiles table from a dataset or table. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataObject | |||

|} | |||

==Connectivity== | |||

Mark connected components with integer point attribute array.The Connectivity | |||

filter assigns a region id to connected components of the | |||

input data set. (The region id is assigned as a point | |||

scalar value.) This filter takes any data set type as | |||

input and produces unstructured grid | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Connectivity | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''ExtractionMode''' (ExtractionMode) | |||

| | |||

Controls the extraction of connected | |||

surfaces. | |||

| | |||

5 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Extract Point Seeded Regions (1) | |||

* Extract Cell Seeded Regions (2) | |||

* Extract Specified Regions (3) | |||

* Extract Largest Region (4) | |||

* Extract All Regions (5) | |||

* Extract Closes Point Region (6) | |||

|- | |||

|'''ColorRegions''' (ColorRegions) | |||

| | |||

Controls the coloring of the connected | |||

regions. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Contingency Statistics== | |||

Compute a statistical model of a dataset and/or assess the dataset with a statistical model. | |||

This filter either computes a statistical model of a dataset or takes | |||

such a model as its second input. Then, the model (however it is | |||

obtained) may optionally be used to assess the input dataset. This filter | |||

computes contingency tables between pairs of attributes. This result is a | |||

tabular bivariate probability distribution which serves as a | |||

Bayesian-style prior model. Data is assessed by computing <ul> | |||

<li> the probability of observing both variables simultaneously; | |||

<li> the probability of each variable conditioned on the other (the | |||

two values need not be identical); and <li> the pointwise mutual | |||

information (PMI). </ul> Finally, the summary statistics include | |||

the information entropy of the observations. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

The input to the filter. Arrays from this dataset will | |||

be used for computing statistics and/or assessed by a statistical | |||

model. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkImageData | |||

* vtkStructuredGrid | |||

* vtkPolyData | |||

* vtkUnstructuredGrid | |||

* vtkTable | |||

* vtkGraph | |||

The dataset must contain a field array () | |||

|- | |||

|'''ModelInput''' (ModelInput) | |||

| | |||

A previously-calculated model with which to assess a | |||

separate dataset. This input is optional. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkTable | |||

* vtkMultiBlockDataSet | |||

|- | |||

|'''AttributeMode''' (AttributeMode) | |||

| | |||

Specify which type of field data the arrays will be | |||

drawn from. | |||

| | |||

0 | |||

| | |||

The value must be field array name. | |||

|- | |||

|'''Variables of Interest''' (SelectArrays) | |||

| | |||

Choose arrays whose entries will be used to form | |||

observations for statistical analysis. | |||

| | |||

| | |||

|- | |||

|'''Task''' (Task) | |||

| | |||

Specify the task to be performed: modeling and/or | |||

assessment. <ol> <li> "Detailed model of input data," | |||

creates a set of output tables containing a calculated statistical | |||

model of the <b>entire</b> input dataset;</li> | |||

<li> "Model a subset of the data," creates an output table (or | |||

tables) summarizing a <b>randomly-chosen subset</b> of the | |||

input dataset;</li> <li> "Assess the data with a model," | |||

adds attributes to the first input dataset using a model provided on | |||

the second input port; and</li> <li> "Model and assess the | |||

same data," is really just operations 2 and 3 above applied to the same | |||

input dataset. The model is first trained using a fraction of the input | |||

data and then the entire dataset is assessed using that | |||

model.</li> </ol> When the task includes creating a model | |||

(i.e., tasks 2, and 4), you may adjust the fraction of the input | |||

dataset used for training. You should avoid using a large fraction of | |||

the input data for training as you will then not be able to detect | |||

overfitting. The <i>Training fraction</i> setting will be | |||

ignored for tasks 1 and 3. | |||

| | |||

3 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Detailed model of input data (0) | |||

* Model a subset of the data (1) | |||

* Assess the data with a model (2) | |||

* Model and assess the same data (3) | |||

|- | |||

|'''TrainingFraction''' (TrainingFraction) | |||

| | |||

Specify the fraction of values from the input dataset to | |||

be used for model fitting. The exact set of values is chosen at random | |||

from the dataset. | |||

| | |||

0.1 | |||

| | |||

|} | |||

==Contour== | |||

Generate isolines or isosurfaces using point scalars.The Contour | |||

filter computes isolines or isosurfaces using a selected | |||

point-centered scalar array. The Contour filter operates | |||

on any type of data set, but the input is required to have | |||

at least one point-centered scalar (single-component) | |||

array. The output of this filter is | |||

polygonal. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset to be used by | |||

the contour filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

|- | |||

|'''Contour By''' (SelectInputScalars) | |||

| | |||

This property specifies the name of the scalar array | |||

from which the contour filter will compute isolines and/or | |||

isosurfaces. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''ComputeNormals''' (ComputeNormals) | |||

| | |||

If this property is set to 1, a scalar array containing | |||

a normal value at each point in the isosurface or isoline will be | |||

created by the contour filter; otherwise an array of normals will not | |||

be computed. This operation is fairly expensive both in terms of | |||

computation time and memory required, so if the output dataset produced | |||

by the contour filter will be processed by filters that modify the | |||

dataset's topology or geometry, it may be wise to set the value of this | |||

property to 0. Select whether to compute normals. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ComputeGradients''' (ComputeGradients) | |||

| | |||

If this property is set to 1, a scalar array containing | |||

a gradient value at each point in the isosurface or isoline will be | |||

created by this filter; otherwise an array of gradients will not be | |||

computed. This operation is fairly expensive both in terms of | |||

computation time and memory required, so if the output dataset produced | |||

by the contour filter will be processed by filters that modify the | |||

dataset's topology or geometry, it may be wise to set the value of this | |||

property to 0. Not that if ComputeNormals is set to 1, then gradients | |||

will have to be calculated, but they will only be stored in the output | |||

dataset if ComputeGradients is also set to 1. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ComputeScalars''' (ComputeScalars) | |||

| | |||

If this property is set to 1, an array of scalars | |||

(containing the contour value) will be added to the output dataset. If | |||

set to 0, the output will not contain this array. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''OutputPointsPrecision''' (OutputPointsPrecision) | |||

| | |||

Select the output precision of the coordinates. **Single** sets the | |||

output to single-precision floating-point (i.e., float), **Double** | |||

sets it to double-precision floating-point (i.e., double), and | |||

**Default** sets it to the same precision as the precision of the | |||

points in the input. Defaults to ***Single***. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Single (0) | |||

* Double (1) | |||

* Same as input (2) | |||

|- | |||

|'''GenerateTriangles''' (GenerateTriangles) | |||

| | |||

This parameter controls whether to produce triangles in the output. | |||

Warning: Many filters do not properly handle non-trianglular polygons. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Isosurfaces''' (ContourValues) | |||

| | |||

This property specifies the values at which to compute | |||

isosurfaces/isolines and also the number of such | |||

values. | |||

| | |||

| | |||

The value must lie within the range of the selected data array. | |||

|- | |||

|'''Point Merge Method''' (Locator) | |||

| | |||

This property specifies an incremental point locator for | |||

merging duplicate / coincident points. | |||

| | |||

| | |||

The value can be one of the following: | |||

* MergePoints (incremental_point_locators) | |||

* IncrementalOctreeMergePoints (incremental_point_locators) | |||

* NonMergingPointLocator (incremental_point_locators) | |||

|} | |||

==Contour Generic Dataset== | |||

Generate isolines or isosurfaces using point scalars.The Generic | |||

Contour filter computes isolines or isosurfaces using a | |||

selected point-centered scalar array. The available scalar | |||

arrays are listed in the Scalars menu. The scalar range of | |||

the selected array will be displayed. The interface for | |||

adding contour values is very similar to the one for | |||

selecting cut offsets (in the Cut filter). To add a single | |||

contour value, select the value from the New Value slider | |||

in the Add value portion of the interface and click the | |||

Add button, or press Enter. To instead add several evenly | |||

spaced contours, use the controls in the Generate range of | |||

values section. Select the number of contour values to | |||

generate using the Number of Values slider. The Range | |||

slider controls the interval in which to generate the | |||

contour values. Once the number of values and range have | |||

been selected, click the Generate button. The new values | |||

will be added to the Contour Values list. To delete a | |||

value from the Contour Values list, select the value and | |||

click the Delete button. (If no value is selected, the | |||

last value in the list will be removed.) Clicking the | |||

Delete All button removes all the values in the list. If | |||

no values are in the Contour Values list when Accept is | |||

pressed, the current value of the New Value slider will be | |||

used. In addition to selecting contour values, you can | |||

also select additional computations to perform. If any of | |||

Compute Normals, Compute Gradients, or Compute Scalars is | |||

selected, the appropriate computation will be performed, | |||

and a corresponding point-centered array will be added to | |||

the output. The Generic Contour filter operates on a | |||

generic data set, but the input is required to have at | |||

least one point-centered scalar (single-component) array. | |||

The output of this filter is polygonal. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Generic Contour | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkGenericDataSet | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

|- | |||

|'''Contour By''' (SelectInputScalars) | |||

| | |||

This property specifies the name of the scalar array | |||

from which the contour filter will compute isolines and/or | |||

isosurfaces. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''ComputeNormals''' (ComputeNormals) | |||

| | |||

Select whether to compute normals. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ComputeGradients''' (ComputeGradients) | |||

| | |||

Select whether to compute gradients. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ComputeScalars''' (ComputeScalars) | |||

| | |||

Select whether to compute scalars. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Isosurfaces''' (ContourValues) | |||

| | |||

This property specifies the values at which to compute | |||

isosurfaces/isolines and also the number of such | |||

values. | |||

| | |||

| | |||

The value must lie within the range of the selected data array. | |||

|- | |||

|'''Point Merge Method''' (Locator) | |||

| | |||

This property specifies an incremental point locator for | |||

merging duplicate / coincident points. | |||

| | |||

| | |||

The value can be one of the following: | |||

* MergePoints (incremental_point_locators) | |||

* IncrementalOctreeMergePoints (incremental_point_locators) | |||

* NonMergingPointLocator (incremental_point_locators) | |||

|} | |||

==Convert AMR dataset to Multi-block== | |||

Convert AMR to Multiblock | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input for this | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkOverlappingAMR | |||

|} | |||

==ConvertSelection== | |||

Converts a selection from one type to | |||

another. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''DataInput''' (DataInput) | |||

| | |||

Set the vtkDataObject input used to convert the | |||

selection. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataObject | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the selection to convert. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkSelection | |||

|- | |||

|'''OutputType''' (OutputType) | |||

| | |||

Set the ContentType for the output. | |||

| | |||

5 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* SELECTIONS (0) | |||

* GLOBALIDs (1) | |||

* PEDIGREEIDS (2) | |||

* VALUES (3) | |||

* INDICES (4) | |||

* FRUSTUM (5) | |||

* LOCATION (6) | |||

* THRESHOLDS (7) | |||

|- | |||

|'''ArrayNames''' (ArrayNames) | |||

| | |||

| | |||

| | |||

|- | |||

|'''MatchAnyValues''' (MatchAnyValues) | |||

| | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Crop== | |||

Efficiently extract an area/volume of interest from a 2-d image or 3-d volume.The Crop filter | |||

extracts an area/volume of interest from a 2D image or a | |||

3D volume by allowing the user to specify the minimum and | |||

maximum extents of each dimension of the data. Both the | |||

input and output of this filter are uniform rectilinear | |||

data. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Crop | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkImageData | |||

|- | |||

|'''OutputWholeExtent''' (OutputWholeExtent) | |||

| | |||

This property gives the minimum and maximum point index | |||

(extent) in each dimension for the output dataset. | |||

| | |||

0 0 0 0 0 0 | |||

| | |||

The value(s) must lie within the structured-extents of the input dataset. | |||

|} | |||

==Curvature== | |||

This filter will compute the Gaussian or mean curvature of the mesh at each point.The | |||

Curvature filter computes the curvature at each point in a | |||

polygonal data set. This filter supports both Gaussian and | |||

mean curvatures. ; the type can be selected from the | |||

Curvature type menu button. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Curvature | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|- | |||

|'''InvertMeanCurvature''' (InvertMeanCurvature) | |||

| | |||

If this property is set to 1, the mean curvature | |||

calculation will be inverted. This is useful for meshes with | |||

inward-pointing normals. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''CurvatureType''' (CurvatureType) | |||

| | |||

This propery specifies which type of curvature to | |||

compute. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Gaussian (0) | |||

* Mean (1) | |||

|} | |||

==D3== | |||

Repartition a data set into load-balanced spatially convex regions. Create ghost cells if requested.The D3 filter is | |||

available when ParaView is run in parallel. It operates on | |||

any type of data set to evenly divide it across the | |||

processors into spatially contiguous regions. The output | |||

of this filter is of type unstructured | |||

grid. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the D3 | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''BoundaryMode''' (BoundaryMode) | |||

| | |||

This property determines how cells that lie on processor | |||

boundaries are handled. The "Assign cells uniquely" option assigns each | |||

boundary cell to exactly one process, which is useful for isosurfacing. | |||

Selecting "Duplicate cells" causes the cells on the boundaries to be | |||

copied to each process that shares that boundary. The "Divide cells" | |||

option breaks cells across process boundary lines so that pieces of the | |||

cell lie in different processes. This option is useful for volume | |||

rendering. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Assign cells uniquely (0) | |||

* Duplicate cells (1) | |||

* Divide cells (2) | |||

|- | |||

|'''Minimal Memory''' (UseMinimalMemory) | |||

| | |||

If this property is set to 1, the D3 filter requires | |||

communication routines to use minimal memory than without this | |||

restriction. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Decimate== | |||

Simplify a polygonal model using an adaptive edge collapse algorithm. This filter works with triangles only. | |||

The Decimate filter reduces the number of triangles in a | |||

polygonal data set. Because this filter only operates on | |||

triangles, first run the Triangulate filter on a dataset | |||

that contains polygons other than | |||

triangles. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Decimate | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|- | |||

|'''TargetReduction''' (TargetReduction) | |||

| | |||

This property specifies the desired reduction in the | |||

total number of polygons in the output dataset. For example, if the | |||

TargetReduction value is 0.9, the Decimate filter will attempt to | |||

produce an output dataset that is 10% the size of the | |||

input.) | |||

| | |||

0.9 | |||

| | |||

|- | |||

|'''PreserveTopology''' (PreserveTopology) | |||

| | |||

If this property is set to 1, decimation will not split | |||

the dataset or produce holes, but it may keep the filter from reaching | |||

the reduction target. If it is set to 0, better reduction can occur | |||

(reaching the reduction target), but holes in the model may be | |||

produced. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''FeatureAngle''' (FeatureAngle) | |||

| | |||

The value of this property is used in determining where | |||

the data set may be split. If the angle between two adjacent triangles | |||

is greater than or equal to the FeatureAngle value, then their boundary | |||

is considered a feature edge where the dataset can be | |||

split. | |||

| | |||

15.0 | |||

| | |||

|- | |||

|'''BoundaryVertexDeletion''' (BoundaryVertexDeletion) | |||

| | |||

If this property is set to 1, then vertices on the | |||

boundary of the dataset can be removed. Setting the value of this | |||

property to 0 preserves the boundary of the dataset, but it may cause | |||

the filter not to reach its reduction target. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Delaunay 2D== | |||

Create 2D Delaunay triangulation of input points. It expects a vtkPointSet as input and produces vtkPolyData as output. The points are expected to be in a mostly planar distribution. | |||

Delaunay2D is a filter that constructs a 2D Delaunay | |||

triangulation from a list of input points. These points | |||

may be represented by any dataset of type vtkPointSet and | |||

subclasses. The output of the filter is a polygonal | |||

dataset containing a triangle mesh. The 2D Delaunay | |||

triangulation is defined as the triangulation that | |||

satisfies the Delaunay criterion for n-dimensional | |||

simplexes (in this case n=2 and the simplexes are | |||

triangles). This criterion states that a circumsphere of | |||

each simplex in a triangulation contains only the n+1 | |||

defining points of the simplex. In two dimensions, this | |||

translates into an optimal triangulation. That is, the | |||

maximum interior angle of any triangle is less than or | |||

equal to that of any possible triangulation. Delaunay | |||

triangulations are used to build topological structures | |||

from unorganized (or unstructured) points. The input to | |||

this filter is a list of points specified in 3D, even | |||

though the triangulation is 2D. Thus the triangulation is | |||

constructed in the x-y plane, and the z coordinate is | |||

ignored (although carried through to the output). You can | |||

use the option ProjectionPlaneMode in order to compute the | |||

best-fitting plane to the set of points, project the | |||

points and that plane and then perform the triangulation | |||

using their projected positions and then use it as the | |||

plane in which the triangulation is performed. The | |||

Delaunay triangulation can be numerically sensitive in | |||

some cases. To prevent problems, try to avoid injecting | |||

points that will result in triangles with bad aspect | |||

ratios (1000:1 or greater). In practice this means | |||

inserting points that are "widely dispersed", and enables | |||

smooth transition of triangle sizes throughout the mesh. | |||

(You may even want to add extra points to create a better | |||

point distribution.) If numerical problems are present, | |||

you will see a warning message to this effect at the end | |||

of the triangulation process. Warning: Points arranged on | |||

a regular lattice (termed degenerate cases) can be | |||

triangulated in more than one way (at least according to | |||

the Delaunay criterion). The choice of triangulation (as | |||

implemented by this algorithm) depends on the order of the | |||

input points. The first three points will form a triangle; | |||

other degenerate points will not break this triangle. | |||

Points that are coincident (or nearly so) may be discarded | |||

by the algorithm. This is because the Delaunay | |||

triangulation requires unique input points. The output of | |||

the Delaunay triangulation is supposedly a convex hull. In | |||

certain cases this implementation may not generate the | |||

convex hull. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset to the | |||

Delaunay 2D filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPointSet | |||

|- | |||

|'''ProjectionPlaneMode''' (ProjectionPlaneMode) | |||

| | |||

This property determines type of projection plane to use | |||

in performing the triangulation. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* XY Plane (0) | |||

* Best-Fitting Plane (2) | |||

|- | |||

|'''Alpha''' (Alpha) | |||

| | |||

The value of this property controls the output of this | |||

filter. For a non-zero alpha value, only edges or triangles contained | |||

within a sphere centered at mesh vertices will be output. Otherwise, | |||

only triangles will be output. | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''Tolerance''' (Tolerance) | |||

| | |||

This property specifies a tolerance to control | |||

discarding of closely spaced points. This tolerance is specified as a | |||

fraction of the diagonal length of the bounding box of the | |||

points. | |||

| | |||

0.00001 | |||

| | |||

|- | |||

|'''Offset''' (Offset) | |||

| | |||

This property is a multiplier to control the size of the | |||

initial, bounding Delaunay triangulation. | |||

| | |||

1.0 | |||

| | |||

|- | |||

|'''BoundingTriangulation''' (BoundingTriangulation) | |||

| | |||

If this property is set to 1, bounding triangulation | |||

points (and associated triangles) are included in the output. These are | |||

introduced as an initial triangulation to begin the triangulation | |||

process. This feature is nice for debugging output. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Delaunay 3D== | |||

Create a 3D Delaunay triangulation of input points. It expects a vtkPointSet as input and produces vtkUnstructuredGrid as output.Delaunay3D is a filter that constructs | |||

a 3D Delaunay triangulation from a list of input points. These points may be | |||

represented by any dataset of type vtkPointSet and subclasses. The output of | |||

the filter is an unstructured grid dataset. Usually the output is a tetrahedral | |||

mesh, but if a non-zero alpha distance value is specified (called the "alpha" | |||

value), then only tetrahedra, triangles, edges, and vertices lying within the | |||

alpha radius are output. In other words, non-zero alpha values may result in | |||

arbitrary combinations of tetrahedra, triangles, lines, and vertices. (The | |||

notion of alpha value is derived from Edelsbrunner's work on "alpha shapes".) | |||

The 3D Delaunay triangulation is defined as the triangulation that satisfies | |||

the Delaunay criterion for n-dimensional simplexes (in this case n=3 and the | |||

simplexes are tetrahedra). This criterion states that a circumsphere of each | |||

simplex in a triangulation contains only the n+1 defining points of the | |||

simplex. (See text for more information.) While in two dimensions this | |||

translates into an "optimal" triangulation, this is not true in 3D, since a | |||

measurement for optimality in 3D is not agreed on. Delaunay triangulations are | |||

used to build topological structures from unorganized (or unstructured) points. | |||

The input to this filter is a list of points specified in 3D. (If you wish to | |||

create 2D triangulations see Delaunay2D.) The output is an unstructured grid. | |||

The Delaunay triangulation can be numerically sensitive. To prevent problems, | |||

try to avoid injecting points that will result in triangles with bad aspect | |||

ratios (1000:1 or greater). In practice this means inserting points that are | |||

"widely dispersed", and enables smooth transition of triangle sizes throughout | |||

the mesh. (You may even want to add extra points to create a better point | |||

distribution.) If numerical problems are present, you will see a warning | |||

message to this effect at the end of the triangulation process. Warning: Points | |||

arranged on a regular lattice (termed degenerate cases) can be triangulated in | |||

more than one way (at least according to the Delaunay criterion). The choice of | |||

triangulation (as implemented by this algorithm) depends on the order of the | |||

input points. The first four points will form a tetrahedron; other degenerate | |||

points (relative to this initial tetrahedron) will not break it. Points that | |||

are coincident (or nearly so) may be discarded by the algorithm. This is | |||

because the Delaunay triangulation requires unique input points. You can | |||

control the definition of coincidence with the "Tolerance" instance variable. | |||

The output of the Delaunay triangulation is supposedly a convex hull. In | |||

certain cases this implementation may not generate the convex hull. This | |||

behavior can be controlled by the Offset instance variable. Offset is a | |||

multiplier used to control the size of the initial triangulation. The larger | |||

the offset value, the more likely you will generate a convex hull; and the more | |||

likely you are to see numerical problems. The implementation of this algorithm | |||

varies from the 2D Delaunay algorithm (i.e., Delaunay2D) in an important way. | |||

When points are injected into the triangulation, the search for the enclosing | |||

tetrahedron is quite different. In the 3D case, the closest previously inserted | |||

point point is found, and then the connected tetrahedra are searched to find | |||

the containing one. (In 2D, a "walk" towards the enclosing triangle is | |||

performed.) If the triangulation is Delaunay, then an enclosing tetrahedron | |||

will be found. However, in degenerate cases an enclosing tetrahedron may not be | |||

found and the point will be rejected. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset to the | |||

Delaunay 3D filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPointSet | |||

|- | |||

|'''Alpha''' (Alpha) | |||

| | |||

This property specifies the alpha (or distance) value to | |||

control the output of this filter. For a non-zero alpha value, only | |||

edges, faces, or tetra contained within the circumsphere (of radius | |||

alpha) will be output. Otherwise, only tetrahedra will be | |||

output. | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''Tolerance''' (Tolerance) | |||

| | |||

This property specifies a tolerance to control | |||

discarding of closely spaced points. This tolerance is specified as a | |||

fraction of the diagonal length of the bounding box of the | |||

points. | |||

| | |||

0.001 | |||

| | |||

|- | |||

|'''Offset''' (Offset) | |||

| | |||

This property specifies a multiplier to control the size | |||

of the initial, bounding Delaunay triangulation. | |||

| | |||

2.5 | |||

| | |||

|- | |||

|'''BoundingTriangulation''' (BoundingTriangulation) | |||

| | |||

This boolean controls whether bounding triangulation | |||

points (and associated triangles) are included in the output. (These | |||

are introduced as an initial triangulation to begin the triangulation | |||

process. This feature is nice for debugging output.) | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''AlphaTets''' (AlphaTets) | |||

| | |||

This boolean controls whether tetrahedrons which satisfy | |||

the alpha criterion output when alpha is non-zero. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''AlphaTris''' (AlphaTris) | |||

| | |||

This boolean controls whether triangles which satisfy | |||

the alpha criterion output when alpha is non-zero. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''AlphaLines''' (AlphaLines) | |||

| | |||

This boolean controls whether lines which satisfy the | |||

alpha criterion output when alpha is non-zero. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''AlphaVerts''' (AlphaVerts) | |||

| | |||

This boolean controls whether vertices which satisfy the | |||

alpha criterion are output when alpha is non-zero. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Descriptive Statistics== | |||

Compute a statistical model of a dataset and/or assess the dataset with a statistical model. | |||

This filter either computes a statistical model of a dataset or takes | |||

such a model as its second input. Then, the model (however it is | |||

obtained) may optionally be used to assess the input dataset.<p> | |||

This filter computes the min, max, mean, raw moments M2 through M4, | |||

standard deviation, skewness, and kurtosis for each array you | |||

select.<p> The model is simply a univariate Gaussian distribution | |||

with the mean and standard deviation provided. Data is assessed using | |||

this model by detrending the data (i.e., subtracting the mean) and then | |||

dividing by the standard deviation. Thus the assessment is an array whose | |||

entries are the number of standard deviations from the mean that each | |||

input point lies. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

The input to the filter. Arrays from this dataset will | |||

be used for computing statistics and/or assessed by a statistical | |||

model. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkImageData | |||

* vtkStructuredGrid | |||

* vtkPolyData | |||

* vtkUnstructuredGrid | |||

* vtkTable | |||

* vtkGraph | |||

The dataset must contain a field array () | |||

|- | |||

|'''ModelInput''' (ModelInput) | |||

| | |||

A previously-calculated model with which to assess a | |||

separate dataset. This input is optional. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkTable | |||

* vtkMultiBlockDataSet | |||

|- | |||

|'''AttributeMode''' (AttributeMode) | |||

| | |||

Specify which type of field data the arrays will be | |||

drawn from. | |||

| | |||

0 | |||

| | |||

The value must be field array name. | |||

|- | |||

|'''Variables of Interest''' (SelectArrays) | |||

| | |||

Choose arrays whose entries will be used to form | |||

observations for statistical analysis. | |||

| | |||

| | |||

|- | |||

|'''Task''' (Task) | |||

| | |||

Specify the task to be performed: modeling and/or | |||

assessment. <ol> <li> "Detailed model of input data," | |||

creates a set of output tables containing a calculated statistical | |||

model of the <b>entire</b> input dataset;</li> | |||

<li> "Model a subset of the data," creates an output table (or | |||

tables) summarizing a <b>randomly-chosen subset</b> of the | |||

input dataset;</li> <li> "Assess the data with a model," | |||

adds attributes to the first input dataset using a model provided on | |||

the second input port; and</li> <li> "Model and assess the | |||

same data," is really just operations 2 and 3 above applied to the same | |||

input dataset. The model is first trained using a fraction of the input | |||

data and then the entire dataset is assessed using that | |||

model.</li> </ol> When the task includes creating a model | |||

(i.e., tasks 2, and 4), you may adjust the fraction of the input | |||

dataset used for training. You should avoid using a large fraction of | |||

the input data for training as you will then not be able to detect | |||

overfitting. The <i>Training fraction</i> setting will be | |||

ignored for tasks 1 and 3. | |||

| | |||

3 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Detailed model of input data (0) | |||

* Model a subset of the data (1) | |||

* Assess the data with a model (2) | |||

* Model and assess the same data (3) | |||

|- | |||

|'''TrainingFraction''' (TrainingFraction) | |||

| | |||

Specify the fraction of values from the input dataset to | |||

be used for model fitting. The exact set of values is chosen at random | |||

from the dataset. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''Deviations should be''' (SignedDeviations) | |||

| | |||

Should the assessed values be signed deviations or | |||

unsigned? | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Unsigned (0) | |||

* Signed (1) | |||

|} | |||

==Elevation== | |||

Create point attribute array by projecting points onto an elevation vector. | |||

The Elevation filter generates point scalar values for an | |||

input dataset along a specified direction vector. The | |||

Input menu allows the user to select the data set to which | |||

this filter will be applied. Use the Scalar range entry | |||

boxes to specify the minimum and maximum scalar value to | |||

be generated. The Low Point and High Point define a line | |||

onto which each point of the data set is projected. The | |||

minimum scalar value is associated with the Low Point, and | |||

the maximum scalar value is associated with the High | |||

Point. The scalar value for each point in the data set is | |||

determined by the location along the line to which that | |||

point projects. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input dataset to the | |||

Elevation filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''ScalarRange''' (ScalarRange) | |||

| | |||

This property determines the range into which scalars | |||

will be mapped. | |||

| | |||

0 1 | |||

| | |||

|- | |||

|'''Low Point''' (LowPoint) | |||

| | |||

This property defines one end of the direction vector | |||

(small scalar values). | |||

| | |||

0 0 0 | |||

| | |||

The value must lie within the bounding box of the dataset. | |||

It will default to the min in each dimension. | |||

|- | |||

|'''High Point''' (HighPoint) | |||

| | |||

This property defines the other end of the direction | |||

vector (large scalar values). | |||

| | |||

0 0 1 | |||

| | |||

The value must lie within the bounding box of the dataset. | |||

It will default to the max in each dimension. | |||

|} | |||

==Environment Annotation== | |||

Allows annotation of user name, date/time, OS, and possibly filename. | |||

Apply to any source. Gui allows manual selection of desired annotation options. | |||

If the source is a file, can display the filename. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input of the filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataObject | |||

|- | |||

|'''DisplayUserName''' (DisplayUserName) | |||

| | |||

Toggle User Name Visibility. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''DisplaySystemName''' (DisplaySystemName) | |||

| | |||

Toggle System Name Visibility. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''DisplayDate''' (DisplayDate) | |||

| | |||

Toggle Date/Time Visibility. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''DisplayFileName''' (DisplayFileName) | |||

| | |||

Toggle File Name Visibility. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''FileName''' (FileName) | |||

| | |||

Annotation of file name. | |||

| | |||

| | |||

|} | |||

==Extract AMR Blocks== | |||

This filter extracts a list of datasets from hierarchical datasets.This filter extracts a list | |||

of datasets from hierarchical datasets. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract | |||

Datasets filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkUniformGridAMR | |||

|- | |||

|'''SelectedDataSets''' (SelectedDataSets) | |||

| | |||

This property provides a list of datasets to | |||

extract. | |||

| | |||

| | |||

|} | |||

==Extract Attributes== | |||

Extract attribute data as a table.This is a | |||

filter that produces a vtkTable from the chosen attribute | |||

in the input dataobject. This filter can accept composite | |||

datasets. If the input is a composite dataset, the output | |||

is a multiblock with vtkTable leaves. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataObject | |||

|- | |||

|'''FieldAssociation''' (FieldAssociation) | |||

| | |||

Select the attribute data to pass. | |||

| | |||

0 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Points (0) | |||

* Cells (1) | |||

* Field Data (2) | |||

* Vertices (4) | |||

* Edges (5) | |||

* Rows (6) | |||

|- | |||

|'''AddMetaData''' (AddMetaData) | |||

| | |||

It is possible for this filter to add additional | |||

meta-data to the field data such as point coordinates (when point | |||

attributes are selected and input is pointset) or structured | |||

coordinates etc. To enable this addition of extra information, turn | |||

this flag on. Off by default. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Bag Plots== | |||

Extract Bag Plots. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkTable | |||

The dataset must contain a field array (row) | |||

with 1 component(s). | |||

|- | |||

|'''Variables of Interest''' (SelectArrays) | |||

| | |||

Choose arrays whose entries will be used to form | |||

observations for statistical analysis. | |||

| | |||

| | |||

|- | |||

|'''Process the transposed of the input table''' (TransposeTable) | |||

| | |||

This flag indicates if the input table must | |||

be transposed first. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''RobustPCA''' (RobustPCA) | |||

| | |||

This flag indicates if the PCA should be run | |||

in robust mode or not. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''HDR smoothing parameter''' (Sigma) | |||

| | |||

Specify the smoothing parameter of the | |||

HDR. | |||

| | |||

1 | |||

| | |||

|- | |||

|'''GridSize''' (GridSize) | |||

| | |||

Width and height of the grid image to perform the PCA on. | |||

| | |||

100 | |||

| | |||

|} | |||

==Extract Block== | |||

This filter extracts a range of blocks from a multiblock dataset.This filter extracts a range | |||

of groups from a multiblock dataset | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Group | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkMultiBlockDataSet | |||

|- | |||

|'''BlockIndices''' (BlockIndices) | |||

| | |||

This property lists the ids of the blocks to extract | |||

from the input multiblock dataset. | |||

| | |||

| | |||

|- | |||

|'''PruneOutput''' (PruneOutput) | |||

| | |||

When set, the output mutliblock dataset will be pruned | |||

to remove empty nodes. On by default. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MaintainStructure''' (MaintainStructure) | |||

| | |||

This is used only when PruneOutput is ON. By default, | |||

when pruning the output i.e. remove empty blocks, if node has only 1 | |||

non-null child block, then that node is removed. To preserve these | |||

parent nodes, set this flag to true. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract CTH Parts== | |||

Create a surface from a CTH volume fraction.Extract | |||

CTH Parts is a specialized filter for visualizing the data | |||

from a CTH simulation. It first converts the selected | |||

cell-centered arrays to point-centered ones. It then | |||

contours each array at a value of 0.5. The user has the | |||

option of clipping the resulting surface(s) with a plane. | |||

This filter only operates on unstructured data. It | |||

produces polygonal output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract CTH | |||

Parts filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (cell) | |||

with 1 component(s). | |||

|- | |||

|'''Clip Type''' (ClipPlane) | |||

| | |||

This property specifies whether to clip the dataset, and | |||

if so, it also specifies the parameters of the plane with which to | |||

clip. | |||

| | |||

| | |||

The value can be one of the following: | |||

* None (implicit_functions) | |||

* Plane (implicit_functions) | |||

|- | |||

|'''Volume Arrays''' (VolumeArrays) | |||

| | |||

This property specifies the name(s) of the volume | |||

fraction array(s) for generating parts. | |||

| | |||

| | |||

An array of scalars is required. | |||

|- | |||

|'''Volume Fraction Value''' (VolumeFractionSurfaceValue) | |||

| | |||

The value of this property is the volume fraction value | |||

for the surface. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''CapSurfaces''' (CapSurfaces) | |||

| | |||

When enabled, volume surfaces are capped to produce visually closed | |||

surface. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''RemoveGhostCells''' (RemoveGhostCells) | |||

| | |||

When set to false, the output surfaces will not hide contours | |||

extracted from ghost cells. This results in overlapping contours but | |||

overcomes holes. Default is set to true. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''GenerateTriangles''' (GenerateTriangles) | |||

| | |||

Triangulate results. When set to false, the internal cut and contour filters | |||

are told not to triangulate results if possible. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Cells By Region== | |||

This filter extracts cells that are inside/outside a region or at a region boundary. | |||

This filter extracts from its input dataset all cells that are either | |||

completely inside or outside of a specified region (implicit function). | |||

On output, the filter generates an unstructured grid. To use this filter | |||

you must specify a region (implicit function). You must also specify | |||

whethter to extract cells lying inside or outside of the region. An | |||

option exists to extract cells that are neither inside or outside (i.e., | |||

boundary). | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Slice | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''Intersect With''' (ImplicitFunction) | |||

| | |||

This property sets the region used to extract | |||

cells. | |||

| | |||

| | |||

The value can be one of the following: | |||

* Plane (implicit_functions) | |||

* Box (implicit_functions) | |||

* Sphere (implicit_functions) | |||

|- | |||

|'''InputBounds''' (InputBounds) | |||

| | |||

| | |||

| | |||

|- | |||

|'''Extraction Side''' (ExtractInside) | |||

| | |||

This parameter controls whether to extract cells that | |||

are inside or outside the region. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* outside (0) | |||

* inside (1) | |||

|- | |||

|'''Extract only intersected''' (Extract only intersected) | |||

| | |||

This parameter controls whether to extract only cells | |||

that are on the boundary of the region. If this parameter is set, the | |||

Extraction Side parameter is ignored. If Extract Intersected is off, | |||

this parameter has no effect. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Extract intersected''' (Extract intersected) | |||

| | |||

This parameter controls whether to extract cells that | |||

are on the boundary of the region. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Component== | |||

This filter extracts a component of a multi-component attribute array. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the Extract Component filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array () | |||

|- | |||

|'''Input Array''' (SelectInputArray) | |||

| | |||

This property indicates the name of the array to be extracted. | |||

| | |||

| | |||

The value must be field array name. | |||

|- | |||

|'''Component''' (Component) | |||

| | |||

This property indicates the component of the array to be extracted. | |||

| | |||

0 | |||

| | |||

|- | |||

|'''Output Array Name''' (OutputArrayName) | |||

| | |||

This property indicates the name of the output scalar array. | |||

| | |||

Result | |||

| | |||

|} | |||

==Extract Edges== | |||

Extract edges of 2D and 3D cells as lines.The Extract Edges | |||

filter produces a wireframe version of the input dataset | |||

by extracting all the edges of the dataset's cells as | |||

lines. This filter operates on any type of data set and | |||

produces polygonal output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Edges | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|} | |||

==Extract Generic Dataset Surface== | |||

Extract geometry from a higher-order dataset | |||

Extract geometry from a higher-order | |||

dataset. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Generic Geometry | |||

Filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkGenericDataSet | |||

|- | |||

|'''PassThroughCellIds''' (PassThroughCellIds) | |||

| | |||

Select whether to forward original ids. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Level== | |||

This filter extracts a range of groups from a hierarchical dataset.This filter extracts a range | |||

of levels from a hierarchical dataset | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Group | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkUniformGridAMR | |||

|- | |||

|'''Levels''' (Levels) | |||

| | |||

This property lists the levels to extract from the input | |||

hierarchical dataset. | |||

| | |||

| | |||

|} | |||

==Extract Location== | |||

Sample or extract cells at a point. | |||

This filter allows you to specify a location and then either interpolate | |||

the data attributes from the input dataset at that location or extract the | |||

cell(s) at the location. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input dataset producer | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

* vtkCompositeDataSet | |||

The dataset must contain a field array () | |||

|- | |||

|'''Mode''' (Mode) | |||

| | |||

Select whether to interpolate (probe) data attributes at the specified | |||

location, or to extract cell(s) containing the specified location. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Interpolate At Location (0) | |||

* Extract Cell At Location (1) | |||

|- | |||

|'''Location''' (Location) | |||

| | |||

Select the location of interest in 3D space. | |||

| | |||

0.0 0.0 0.0 | |||

| | |||

The value must lie within the bounding box of the dataset. | |||

It will default to the mid in each dimension. | |||

|} | |||

==Extract Region Surface== | |||

Extract a 2D boundary surface using neighbor relations to eliminate internal faces.The Extract | |||

Surface filter extracts the polygons forming the outer | |||

surface of the input dataset. This filter operates on any | |||

type of data and produces polygonal data as | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Surface | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''PieceInvariant''' (PieceInvariant) | |||

| | |||

If the value of this property is set to 1, internal | |||

surfaces along process boundaries will be removed. NOTE: Enabling this | |||

option might cause multiple executions of the data source because more | |||

information is needed to remove internal surfaces. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''NonlinearSubdivisionLevel''' (NonlinearSubdivisionLevel) | |||

| | |||

If the input is an unstructured grid with nonlinear | |||

faces, this parameter determines how many times the face is subdivided | |||

into linear faces. If 0, the output is the equivalent of its linear | |||

couterpart (and the midpoints determining the nonlinear interpolation | |||

are discarded). If 1, the nonlinear face is triangulated based on the | |||

midpoints. If greater than 1, the triangulated pieces are recursively | |||

subdivided to reach the desired subdivision. Setting the value to | |||

greater than 1 may cause some point data to not be passed even if no | |||

quadratic faces exist. This option has no effect if the input is not an | |||

unstructured grid. | |||

| | |||

1 | |||

| | |||

|- | |||

|'''RegionArrayName''' (RegionArrayName) | |||

| | |||

This property specifies the name of the material | |||

array for generating parts. | |||

| | |||

material | |||

| | |||

|- | |||

|'''SingleSided''' (SingleSided) | |||

| | |||

If the value of this property is set to 1 (the default), | |||

surfaces along the boundary are 1 layer thick. Otherwise there is | |||

a surface for the material on each side. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''MaterialPropertiesName''' (MaterialPropertiesName) | |||

| | |||

This the name of the input material property field data array | |||

| | |||

material_properties | |||

| | |||

|- | |||

|'''MaterialIDsName''' (MaterialIDsName) | |||

| | |||

This the name of the input and output material id field data array | |||

| | |||

material_ids | |||

| | |||

|- | |||

|'''MaterialPIDsName''' (MaterialPIDsName) | |||

| | |||

This the name of the output material ancestry id field data array | |||

| | |||

material_ancestors | |||

| | |||

|- | |||

|'''InterfaceIDsName''' (InterfaceIDsName) | |||

| | |||

This the name of the input and output interface id field data array | |||

| | |||

interface_ids | |||

| | |||

|} | |||

==Extract Selection== | |||

Extract different type of selections.This | |||

filter extracts a set of cells/points given a selection. | |||

The selection can be obtained from a rubber-band selection | |||

(either cell, visible or in a frustum) or threshold | |||

selection and passed to the filter or specified by | |||

providing an ID list. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input from which the | |||

selection is extracted. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

* vtkTable | |||

|- | |||

|'''Selection''' (Selection) | |||

| | |||

The input that provides the selection | |||

object. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkSelection | |||

|- | |||

|'''PreserveTopology''' (PreserveTopology) | |||

| | |||

If this property is set to 1 the output preserves the | |||

topology of its input and adds an insidedness array to mark which cells | |||

are inside or out. If 0 then the output is an unstructured grid which | |||

contains only the subset of cells that are inside. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ShowBounds''' (ShowBounds) | |||

| | |||

For frustum selection, if this property is set to 1 the | |||

output is the outline of the frustum instead of the contents of the | |||

input that lie within the frustum. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Selection (internal)== | |||

This filter extracts a given set of cells or points given | |||

a selection. The selection can be obtained from a rubber-band selection | |||

(either point, cell, visible or in a frustum) and passed to the filter or | |||

specified by providing an ID list. This is an internal filter, use | |||

"ExtractSelection" instead. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

The input from which the selection is | |||

extracted. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''Selection''' (Selection) | |||

| | |||

The input that provides the selection | |||

object. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkSelection | |||

|} | |||

==Extract Subset== | |||

Extract a subgrid from a structured grid with the option of setting subsample strides.The Extract | |||

Grid filter returns a subgrid of a structured input data | |||

set (uniform rectilinear, curvilinear, or nonuniform | |||

rectilinear). The output data set type of this filter is | |||

the same as the input type. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Grid | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkImageData | |||

* vtkRectilinearGrid | |||

* vtkStructuredPoints | |||

* vtkStructuredGrid | |||

|- | |||

|'''VOI''' (VOI) | |||

| | |||

This property specifies the minimum and maximum point | |||

indices along each of the I, J, and K axes; these values indicate the | |||

volume of interest (VOI). The output will have the (I,J,K) extent | |||

specified here. | |||

| | |||

0 0 0 0 0 0 | |||

| | |||

The value(s) must lie within the structured-extents of the input dataset. | |||

|- | |||

|'''SampleRateI''' (SampleRateI) | |||

| | |||

This property indicates the sampling rate in the I | |||

dimension. A value grater than 1 results in subsampling; every nth | |||

index will be included in the output. | |||

| | |||

1 | |||

| | |||

|- | |||

|'''SampleRateJ''' (SampleRateJ) | |||

| | |||

This property indicates the sampling rate in the J | |||

dimension. A value grater than 1 results in subsampling; every nth | |||

index will be included in the output. | |||

| | |||

1 | |||

| | |||

|- | |||

|'''SampleRateK''' (SampleRateK) | |||

| | |||

This property indicates the sampling rate in the K | |||

dimension. A value grater than 1 results in subsampling; every nth | |||

index will be included in the output. | |||

| | |||

1 | |||

| | |||

|- | |||

|'''IncludeBoundary''' (IncludeBoundary) | |||

| | |||

If the value of this property is 1, then if the sample | |||

rate in any dimension is greater than 1, the boundary indices of the | |||

input dataset will be passed to the output even if the boundary extent | |||

is not an even multiple of the sample rate in a given | |||

dimension. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|} | |||

==Extract Surface== | |||

Extract a 2D boundary surface using neighbor relations to eliminate internal faces.The Extract | |||

Surface filter extracts the polygons forming the outer | |||

surface of the input dataset. This filter operates on any | |||

type of data and produces polygonal data as | |||

output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Extract Surface | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''PieceInvariant''' (PieceInvariant) | |||

| | |||

If the value of this property is set to 1, internal | |||

surfaces along process boundaries will be removed. NOTE: Enabling this | |||

option might cause multiple executions of the data source because more | |||

information is needed to remove internal surfaces. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''NonlinearSubdivisionLevel''' (NonlinearSubdivisionLevel) | |||

| | |||

If the input is an unstructured grid with nonlinear | |||

faces, this parameter determines how many times the face is subdivided | |||

into linear faces. If 0, the output is the equivalent of its linear | |||

couterpart (and the midpoints determining the nonlinear interpolation | |||

are discarded). If 1, the nonlinear face is triangulated based on the | |||

midpoints. If greater than 1, the triangulated pieces are recursively | |||

subdivided to reach the desired subdivision. Setting the value to | |||

greater than 1 may cause some point data to not be passed even if no | |||

quadratic faces exist. This option has no effect if the input is not an | |||

unstructured grid. | |||

| | |||

1 | |||

| | |||

|} | |||

==FFT Of Selection Over Time== | |||

Extracts selection over time and plots the FFT | |||

Extracts the data of a selection (e.g. points or cells) | |||

over time, takes the FFT of them, and plots | |||

them. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|} | |||

==Feature Edges== | |||

This filter will extract edges along sharp edges of surfaces or boundaries of surfaces. | |||

The Feature Edges filter extracts various subsets of edges | |||

from the input data set. This filter operates on polygonal | |||

data and produces polygonal output. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Feature Edges | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|- | |||

|'''BoundaryEdges''' (BoundaryEdges) | |||

| | |||

If the value of this property is set to 1, boundary | |||

edges will be extracted. Boundary edges are defined as lines cells or | |||

edges that are used by only one polygon. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''FeatureEdges''' (FeatureEdges) | |||

| | |||

If the value of this property is set to 1, feature edges | |||

will be extracted. Feature edges are defined as edges that are used by | |||

two polygons whose dihedral angle is greater than the feature angle. | |||

(See the FeatureAngle property.) Toggle whether to extract feature | |||

edges. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Non-Manifold Edges''' (NonManifoldEdges) | |||

| | |||

If the value of this property is set to 1, non-manifold | |||

ediges will be extracted. Non-manifold edges are defined as edges that | |||

are use by three or more polygons. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''ManifoldEdges''' (ManifoldEdges) | |||

| | |||

If the value of this property is set to 1, manifold | |||

edges will be extracted. Manifold edges are defined as edges that are | |||

used by exactly two polygons. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Coloring''' (Coloring) | |||

| | |||

If the value of this property is set to 1, then the | |||

extracted edges are assigned a scalar value based on the type of the | |||

edge. | |||

| | |||

0 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''FeatureAngle''' (FeatureAngle) | |||

| | |||

Ths value of this property is used to define a feature | |||

edge. If the surface normal between two adjacent triangles is at least | |||

as large as this Feature Angle, a feature edge exists. (See the | |||

FeatureEdges property.) | |||

| | |||

30.0 | |||

| | |||

|} | |||

==FlattenFilter== | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

Set the input to the Flatten Filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPointSet | |||

* vtkGraph | |||

* vtkCompositeDataSet | |||

|} | |||

==Gaussian Resampling== | |||

Splat points into a volume with an elliptical, Gaussian distribution.vtkGaussianSplatter | |||

is a filter that injects input points into a structured | |||

points (volume) dataset. As each point is injected, it | |||

"splats" or distributes values to nearby voxels. Data is | |||

distributed using an elliptical, Gaussian distribution | |||

function. The distribution function is modified using | |||

scalar values (expands distribution) or normals (creates | |||

ellipsoidal distribution rather than spherical). Warning: | |||

results may be incorrect in parallel as points can't splat | |||

into other processor's cells. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

The dataset must contain a field array (point) | |||

with 1 component(s). | |||

|- | |||

|'''Resample Field''' (SelectInputScalars) | |||

| | |||

Choose a scalar array to splat into the output cells. If | |||

ignore arrays is chosen, point density will be counted | |||

instead. | |||

| | |||

| | |||

An array of scalars is required.The value must be field array name. | |||

|- | |||

|'''Resampling Grid''' (SampleDimensions) | |||

| | |||

Set / get the dimensions of the sampling structured | |||

point set. Higher values produce better results but are much | |||

slower. | |||

| | |||

50 50 50 | |||

| | |||

|- | |||

|'''Extent to Resample''' (ModelBounds) | |||

| | |||

Set / get the (xmin,xmax, ymin,ymax, zmin,zmax) bounding | |||

box in which the sampling is performed. If any of the (min,max) bounds | |||

values are min >= max, then the bounds will be computed | |||

automatically from the input data. Otherwise, the user-specified bounds | |||

will be used. | |||

| | |||

0.0 0.0 0.0 0.0 0.0 0.0 | |||

| | |||

|- | |||

|'''Gaussian Splat Radius''' (Radius) | |||

| | |||

Set / get the radius of propagation of the splat. This | |||

value is expressed as a percentage of the length of the longest side of | |||

the sampling volume. Smaller numbers greatly reduce execution | |||

time. | |||

| | |||

0.1 | |||

| | |||

|- | |||

|'''Gaussian Exponent Factor''' (ExponentFactor) | |||

| | |||

Set / get the sharpness of decay of the splats. This is | |||

the exponent constant in the Gaussian equation. Normally this is a | |||

negative value. | |||

| | |||

-5.0 | |||

| | |||

|- | |||

|'''Scale Splats''' (ScalarWarping) | |||

| | |||

Turn on/off the scaling of splats by scalar | |||

value. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Scale Factor''' (ScaleFactor) | |||

| | |||

Multiply Gaussian splat distribution by this value. If | |||

ScalarWarping is on, then the Scalar value will be multiplied by the | |||

ScaleFactor times the Gaussian function. | |||

| | |||

1.0 | |||

| | |||

|- | |||

|'''Elliptical Splats''' (NormalWarping) | |||

| | |||

Turn on/off the generation of elliptical splats. If | |||

normal warping is on, then the input normals affect the distribution of | |||

the splat. This boolean is used in combination with the Eccentricity | |||

ivar. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Ellipitical Eccentricity''' (Eccentricity) | |||

| | |||

Control the shape of elliptical splatting. Eccentricity | |||

is the ratio of the major axis (aligned along normal) to the minor | |||

(axes) aligned along other two axes. So Eccentricity gt 1 creates | |||

needles with the long axis in the direction of the normal; Eccentricity | |||

lt 1 creates pancakes perpendicular to the normal | |||

vector. | |||

| | |||

2.5 | |||

| | |||

|- | |||

|'''Fill Volume Boundary''' (Capping) | |||

| | |||

Turn on/off the capping of the outer boundary of the | |||

volume to a specified cap value. This can be used to close surfaces | |||

(after iso-surfacing) and create other effects. | |||

| | |||

1 | |||

| | |||

Accepts boolean values (0 or 1). | |||

|- | |||

|'''Fill Value''' (CapValue) | |||

| | |||

Specify the cap value to use. (This instance variable | |||

only has effect if the ivar Capping is on.) | |||

| | |||

0.0 | |||

| | |||

|- | |||

|'''Splat Accumulation Mode''' (Accumulation Mode) | |||

| | |||

Specify the scalar accumulation mode. This mode | |||

expresses how scalar values are combined when splats are overlapped. | |||

The Max mode acts like a set union operation and is the most commonly | |||

used; the Min mode acts like a set intersection, and the sum is just | |||

weird. | |||

| | |||

1 | |||

| | |||

The value(s) is an enumeration of the following: | |||

* Min (0) | |||

* Max (1) | |||

* Sum (2) | |||

|- | |||

|'''Empty Cell Value''' (NullValue) | |||

| | |||

Set the Null value for output points not receiving a | |||

contribution from the input points. (This is the initial value of the | |||

voxel samples.) | |||

| | |||

0.0 | |||

| | |||

|} | |||

==Generate Ids== | |||

Generate scalars from point and cell ids. | |||

This filter generates scalars using cell and point ids. | |||

That is, the point attribute data scalars are generated | |||

from the point ids, and the cell attribute data scalars or | |||

field data are generated from the the cell | |||

ids. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Cell Data to | |||

Point Data filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkDataSet | |||

|- | |||

|'''ArrayName''' (ArrayName) | |||

| | |||

The name of the array that will contain | |||

ids. | |||

| | |||

Ids | |||

| | |||

|} | |||

==Generate Quadrature Points== | |||

Create a point set with data at quadrature points. | |||

"Create a point set with data at quadrature | |||

points." | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkUnstructuredGrid | |||

The dataset must contain a field array (cell) | |||

|- | |||

|'''Quadrature Scheme Def''' (QuadratureSchemeDefinition) | |||

| | |||

Specifies the offset array from which we generate | |||

quadrature points. | |||

| | |||

| | |||

An array of scalars is required. | |||

|} | |||

==Generate Quadrature Scheme Dictionary== | |||

Generate quadrature scheme dictionaries in data sets that do not have them. | |||

Generate quadrature scheme dictionaries in data sets that do not have | |||

them. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input of the | |||

filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkUnstructuredGrid | |||

|} | |||

==Generate Surface Normals== | |||

This filter will produce surface normals used for smooth shading. Splitting is used to avoid smoothing across feature edges.This filter | |||

generates surface normals at the points of the input | |||

polygonal dataset to provide smooth shading of the | |||

dataset. The resulting dataset is also polygonal. The | |||

filter works by calculating a normal vector for each | |||

polygon in the dataset and then averaging the normals at | |||

the shared points. | |||

{| class="PropertiesTable" border="1" cellpadding="5" | |||

|- | |||

| '''Property''' | |||

| '''Description''' | |||

| '''Default Value(s)''' | |||

| '''Restrictions''' | |||

|- | |||

|'''Input''' (Input) | |||

| | |||

This property specifies the input to the Normals | |||

Generation filter. | |||

| | |||

| | |||

Accepts input of following types: | |||

* vtkPolyData | |||

|- | |||

|'''FeatureAngle''' (FeatureAngle) | |||

| | |||

The value of this property defines a feature edge. If | |||