Cast
vtk-examples/Python/Images/Cast
Description¶
Cast an image to a different type.
Question
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Code¶
Cast.py
#!/usr/bin/env python
import vtk
def main():
colors = vtk.vtkNamedColors()
# Create a float image
source = vtk.vtkImageMandelbrotSource()
source.Update()
print(source.GetOutput().GetScalarTypeAsString())
castFilter = vtk.vtkImageCast()
castFilter.SetInputConnection(source.GetOutputPort())
castFilter.SetOutputScalarTypeToUnsignedChar()
castFilter.Update()
# Create an actor
actor = vtk.vtkImageActor()
actor.GetMapper().SetInputConnection(castFilter.GetOutputPort())
# Setup renderer
renderer = vtk.vtkRenderer()
renderer.AddActor(actor)
renderer.SetBackground(colors.GetColor3d('DarkSlateGray'))
renderer.ResetCamera()
# Setup render window
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
renderWindow.SetWindowName('Cast')
# Setup render window interactor
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
style = vtk.vtkInteractorStyleImage()
renderWindowInteractor.SetInteractorStyle(style)
# Render and start interaction
renderWindowInteractor.SetRenderWindow(renderWindow)
renderWindow.Render()
renderWindowInteractor.Initialize()
renderWindowInteractor.Start()
if __name__ == '__main__':
main()