Quad
vtk-examples/Python/GeometricObjects/Quad
Question
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Code¶
Quad.py
#!/usr/bin/env python
import vtk
def main():
colors = vtk.vtkNamedColors()
# Create four points (must be in counter clockwise order)
p0 = [0.0, 0.0, 0.0]
p1 = [1.0, 0.0, 0.0]
p2 = [1.0, 1.0, 0.0]
p3 = [0.0, 1.0, 0.0]
# Add the points to a vtkPoints object
points = vtk.vtkPoints()
points.InsertNextPoint(p0)
points.InsertNextPoint(p1)
points.InsertNextPoint(p2)
points.InsertNextPoint(p3)
# Create a quad on the four points
quad = vtk.vtkQuad()
quad.GetPointIds().SetId(0, 0)
quad.GetPointIds().SetId(1, 1)
quad.GetPointIds().SetId(2, 2)
quad.GetPointIds().SetId(3, 3)
# Create a cell array to store the quad in
quads = vtk.vtkCellArray()
quads.InsertNextCell(quad)
# Create a polydata to store everything in
polydata = vtk.vtkPolyData()
# Add the points and quads to the dataset
polydata.SetPoints(points)
polydata.SetPolys(quads)
# Setup actor and mapper
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputData(polydata)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetColor(colors.GetColor3d('Silver'))
# Setup render window, renderer, and interactor
renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetWindowName('Quad')
renderWindow.AddRenderer(renderer)
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderer.AddActor(actor)
renderer.SetBackground(colors.GetColor3d('Salmon'))
renderWindow.Render()
renderWindowInteractor.Start()
if __name__ == '__main__':
main()