[vtkusers] vtkImageDataGeometryFilter with vtkStructuredPointsReader

[Aldredo Gourbish]

Hi everbody,

I have a problem of data type using vtkImageDataGeometryFilter. In fact, I use this class with an input data of type vtkStructuredPointsReader. Normaly, there is no problem here.
After, I try to render the volume using vtkOpenGLVolumeTextureMapper3D. But here I have these errors :
"
ERROR: In .\vtkVolumeMapper.cxx, line 83
vtkOpenGLVolumeTextureMapper3D (03700020): The SetInput method of this mapper requires vtkImageData as input

ERROR: In .\vtkVolumeMapper.cxx, line 83ERROR: In .\vtkDemandDrivenPipeline.cxx, line 726
vtkStreamingDemandDrivenPipeline (036B83E8): Input port 0 of algorithm vtkOpenGLVolumeTextureMapper3D(ERROR: In .\vtkDemandDrivenPipeline.cxx, line 726
vtkStreamingDemandDrivenPipeline (036B83E8): Input port 0 of algorithm vtkOpenGLVolumeTextureMapper3D(03700020) has 0 connections but is not optional.
"

So I understood that de data type is not good since vtkImageDataGeometryFilter->GetOutput() returns a vtkPolyData*.
Finally the vtkImageDataGeometryFilter does not seem to be the better class to extract data from vtkStructuredPoints, unless there is a filter to convert vtkPolyData to vtkImageData ? But I didn't find it...

So if somebody has any idea... thank's to help me ! :-)


Have a nice day.

Gourbish

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