RectilinearGrid
vtk-examples/Python/RectilinearGrid/RectilinearGrid
Description¶
Shows how to create a vtkRectilinearGrid.
Question
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Code¶
RectilinearGrid.py
#!/usr/bin/env python
import vtk
def main():
colors = vtk.vtkNamedColors()
# Create a grid
grid = vtk.vtkRectilinearGrid()
grid.SetDimensions(2, 3, 1)
xArray = vtk.vtkDoubleArray()
xArray.InsertNextValue(0.0)
xArray.InsertNextValue(2.0)
yArray = vtk.vtkDoubleArray()
yArray.InsertNextValue(0.0)
yArray.InsertNextValue(1.0)
yArray.InsertNextValue(2.0)
zArray = vtk.vtkDoubleArray()
zArray.InsertNextValue(0.0)
grid.SetXCoordinates(xArray)
grid.SetYCoordinates(yArray)
grid.SetZCoordinates(zArray)
print('There are', grid.GetNumberOfPoints(), 'points.')
print('There are', grid.GetNumberOfCells(), 'cells.')
for id in range(0, grid.GetNumberOfPoints()):
p = [0] * 3
p = grid.GetPoint(id)
print('Point', id, ':(', p[0], ',', p[1], ',', p[2], ')')
# Create a mapper and actor
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(grid)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetColor(colors.GetColor3d('PeachPuff'))
# Visualize
renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
renderWindow.SetWindowName('RectilinearGrid')
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderer.AddActor(actor)
renderer.SetBackground(colors.GetColor3d('SlateGray'))
renderWindow.Render()
renderWindowInteractor.Start()
if __name__ == '__main__':
main()