PerlinNoise
vtk-examples/Python/Filtering/PerlinNoise
Question
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Code¶
PerlinNoise.py
#!/usr/bin/env python
import vtk
def main():
colors = vtk.vtkNamedColors()
perlinNoise = vtk.vtkPerlinNoise()
perlinNoise.SetFrequency(2, 1.25, 1.5)
perlinNoise.SetPhase(0, 0, 0)
sample = vtk.vtkSampleFunction()
sample.SetImplicitFunction(perlinNoise)
sample.SetSampleDimensions(65, 65, 20)
sample.ComputeNormalsOff()
surface = vtk.vtkContourFilter()
surface.SetInputConnection(sample.GetOutputPort())
surface.SetValue(0, 0.0)
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(surface.GetOutputPort())
mapper.ScalarVisibilityOff()
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetColor(colors.GetColor3d('SteelBlue'))
renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
# Add the actors to the renderer, set the background and size
renderer.AddActor(actor)
renderer.SetBackground(colors.GetColor3d('SlateGray'))
renderWindow.SetWindowName('PerlinNoise')
renderWindow.SetSize(300, 300)
renderer.ResetCamera()
renderWindow.Render()
interactor.Start()
if __name__ == '__main__':
main()