<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt">Hello,<br><br>some one does know how to access to gradient data in a vtkVolume Mapper?<br><br>I use a vtkFixedPointVolumeRayCastMapper. This class compute the volume gradient to render the volume. But I would like to access to the gradient data to filter it. There is to methods to get attributes from this class named: <br><br> unsigned short **gradNormal=volMapper->GetGradientNormal();<br> unsigned char **grad =volMapper->GetGradientMagnitude();<br><br>But it's doesn't work or I don't know how it works. The both pointers are null.<br><br>PS: My soft is working..<br></div><br>
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