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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a dataset of a brain and it’s brain mask (see attached image). I derived the brain contour using a contour filter and would like to map the brain (not skull and skin) on a specific plane. I used the following code to generate the attached image:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Inputs: im and im_mask<o:p></o:p></p><p class=MsoNormal>---<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>contour = vtk.vtkContourFilter()<o:p></o:p></p><p class=MsoNormal>contour.SetInput(im_mask)<o:p></o:p></p><p class=MsoNormal>contour.SetValue(0,0.5)<o:p></o:p></p><p class=MsoNormal>contour.SetComputeNormals(0)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>smooth = vtk.vtkSmoothPolyDataFilter()<o:p></o:p></p><p class=MsoNormal>smooth.SetInput(contour.GetOutput())<o:p></o:p></p><p class=MsoNormal>smooth.SetNumberOfIterations(10)<o:p></o:p></p><p class=MsoNormal>smooth.SetRelaxationFactor(0.5)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>plane = vtk.vtkPlane()<o:p></o:p></p><p class=MsoNormal>plane.SetOrigin(im.GetCenter())<o:p></o:p></p><p class=MsoNormal>plane.SetNormal(1,0,-1)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>cutter = vtk.vtkCutter()<o:p></o:p></p><p class=MsoNormal>cutter.SetInput(im)<o:p></o:p></p><p class=MsoNormal>cutter.SetCutFunction(plane)<o:p></o:p></p><p class=MsoNormal>cutter.Update()<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>cutter2 = vtk.vtkCutter()<o:p></o:p></p><p class=MsoNormal>cutter2.SetInput(smooth.GetOutput())<o:p></o:p></p><p class=MsoNormal>cutter2.SetCutFunction(plane)<o:p></o:p></p><p class=MsoNormal>cutter2.SetGenerateCutScalars(0)<o:p></o:p></p><p class=MsoNormal><span lang=NL>cutter2.Update()<o:p></o:p></span></p><p class=MsoNormal><span lang=NL><o:p> </o:p></span></p><p class=MsoNormal>… where cutter displays the plane and cutter2 (cut of contour) displays the red line. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is there a way to crop this plane such that a flat plane (a vtkPolyData object) arises which is bounded by the ‘red line’ and which can be used to apply a vtkProbeFilter which ‘probes’ the ‘im’ dataset such that the values of the original image are displayed on the cropped plane?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks for sharing your thoughts,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>With best regards,<o:p></o:p></p><p class=MsoNormal>Martijn <o:p></o:p></p></div></body></html>