[vtkusers] Glyphing with Field Data

[Shari Rolnick]

Hi,

I am trying to use vtkGlyph3D with vtkFieldData.  I can read my data
file in with no trouble, but I can't seem to create a useful
visualization of it.  All I get are four glyphs - one at the tip of each
axis, and one at their intersection.  I guess I am not getting good
point data, but I'm not sure why.  Could someone give me a hint where
I'm going wrong or point me in the direction of an example where field
data is used with glyphs?

I've attached the file I've created that generates the visualization,
and here is the output:

vtkFieldDataToAttributeDataFilter:  vtkFieldDataToAttributeDataFilter
(0x94ccf08)
  Debug: Off
  Modified Time: 462
  Reference Count: 3
  Registered Events: (none)
  Number Of Required Inputs: 1
  Input 0: (0x93bb300)
  AbortExecute: Off
  Progress: 1
  Progress Text: (None)
  ErrorCode: NoError
  Output 0: (0x94cdc20)
  Input Field: DataObjectField
  Default Normalize: Off
  Output Attribute Data: PointData


Glyph: vtkGlyph3D (0x94ba908)
  Debug: Off
  Modified Time: 703
  Reference Count: 3
  Registered Events: (none)
  Number Of Required Inputs: 1
  Input 0: (0x94cdc20)
  Input 1: (0x94ce958)
  AbortExecute: Off
  Progress: 0
  Progress Text: (None)
  ErrorCode: NoError
  Output 0: (0x94cf000)
  Generate Point Ids Off
  PointIdsName: InputPointIds
  Color Mode: ColorByScale
  Source: (0x94ce958)
  Scaling: On
  Scale Mode: Scale by scalar
  Scale Factor: 0.1
  Clamping: Off
  Range: (0, 1)
  Orient: On
  Orient Mode: Orient by vector
  Index Mode: Index by scalar value
  InputScalarsSelection: (none)
  InputVectorsSelection: (none)
  InputNormalsSelection: (none)


Warning: In /home/shari/VTK/VTK/Graphics/vtkGlyph3D.cxx, line 173
vtkGlyph3D (0x94ba908): Turning indexing off: no data to index with


I would appreciate any help!  Thanks.

-- 
Shari Rolnick <shari at loralee.net>
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