Vertex
vtk-examples/Python/GeometricObjects/Vertex
Description¶
The vertex is a primary zero-dimensional cell. It is defined by a single point.
Question
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Code¶
Vertex.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import vtk
def main():
colors = vtk.vtkNamedColors()
points = vtk.vtkPoints()
points.InsertNextPoint(0, 0, 0)
vertex = vtk.vtkVertex()
vertex.GetPointIds().SetId(0, 0)
vertices = vtk.vtkCellArray()
vertices.InsertNextCell(vertex)
polydata = vtk.vtkPolyData()
polydata.SetPoints(points)
polydata.SetVerts(vertices)
# Setup actor and mapper
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputData(polydata)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetPointSize(30)
actor.GetProperty().SetColor(colors.GetColor3d('PeachPuff'))
# Setup render window, renderer, and interactor
renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetWindowName('Vertex')
renderWindow.AddRenderer(renderer)
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderer.AddActor(actor)
renderer.SetBackground(colors.GetColor3d('DarkGreen'))
renderWindow.Render()
renderWindowInteractor.Start()
if __name__ == '__main__':
main()