from vtk.test import Testing from vtk.util.misc import vtkGetDataRoot VTK_DATA_ROOT = vtkGetDataRoot() # The resolution of the density function volume res = 100 # Parameters for debugging NPts = 1000000 math = vtk.vtkMath() math.RandomSeed(31415) # create pipeline # points = vtk.vtkBoundedPointSource() points.SetNumberOfPoints(NPts) points.ProduceRandomScalarsOn() points.ProduceCellOutputOff() points.Update() # Create a sphere implicit function sphere = vtk.vtkSphere() sphere.SetCenter(0.0, 0.1, 0.2) sphere.SetRadius(0.75) # Extract points within sphere extract = vtk.vtkFitImplicitFunction() extract.SetInputConnection(points.GetOutputPort()) extract.SetImplicitFunction(sphere) extract.SetThreshold(0.005)
#!/usr/bin/env python import vtk from vtk.util.misc import vtkGetDataRoot VTK_DATA_ROOT = vtkGetDataRoot() # Interpolate onto a volume # Parameters for debugging NPts = 1000000 #NPts = 100000000 math = vtk.vtkMath() math.RandomSeed(31415) # create pipeline # points = vtk.vtkBoundedPointSource() points.SetNumberOfPoints(NPts) points.ProduceRandomScalarsOn() points.ProduceCellOutputOff() points.Update() # Create a sphere implicit function sphere = vtk.vtkSphere() sphere.SetCenter(0,0,0) sphere.SetRadius(0.75) # Extract points along sphere surface extract = vtk.vtkFitImplicitFunction() extract.SetInputConnection(points.GetOutputPort()) extract.SetImplicitFunction(sphere) extract.SetThreshold(0.005)
