[Paraview] custom xml for vtkContourFilter

[Axel Steuwer]

Hi,

in the same context, is there any way that the vtkProgrammableSource
of /Examples/Modelling/Python/reconstructSurface.py
can be wrapped/used in paraview? In particular,
the very handy snippet for reading xyz data.

# Read some points. Use a programmable filter to read them.
pointSource = vtk.vtkProgrammableSource()

def readPoints():
    output = pointSource.GetPolyDataOutput()
    points = vtk.vtkPoints()
    output.SetPoints(points)

    file = open(os.path.normpath(os.path.join(VTK_DATA_ROOT,
"Data/cactus.3337.pts")))

    line = file.readline()
    while line:
        data = string.split(line)
        if data and data[0] == 'p':
            x, y, z = float(data[1]), float(data[2]), float(data[3])
            points.InsertNextPoint(x, y, z)
        line = file.readline()

pointSource.SetExecuteMethod(readPoints)


This would be a handy input filter for ascii data points?

Axel




> There is a special widget for setting contour values. It is
> called ContourEntry. Here is how it is used in the default
> contour module:
>
>   <ContourEntry label="Contour Values" trace_name="Contour Values"
>                 help="List of current contour values. "/>
>
> (1.0.3 release, this changed slightly in the development version)
> The VectorEntry widget requires having a Set/Get pair and SetXXX
> has to to take only one argument.
>
> -Berk
>
> On Wed, 2003-10-29 at 09:07, Axel Steuwer wrote:
>> Hi,
>>
>> when writing the definition of a custom vtk filter in XML
>> for single int or float I use for example
>>
>>  <VectorEntry variable="NeighborhoodSize"
>> trace_name="NeighborhoodSize"
>> type="float" help="NeighborhoodSize" default_value="10" data_range="0
>> 40.0"/>
>>
>> for the vtkSurfaceReconstructionFilter.
>>
>> However, if I want to follow this up with the vtkContourFilter as in
>> Examples/Modelling/Python/surfaceReconstruction.py to see
>> the surface using SetValue(0, 0.), what do I have to write in the XML
>> to set the values of "void  SetValue (int i, float value)"
>> Is it a mix of types?
>>
>> Axel
>>
>>
>>
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>
>
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