Triangle
VTKExamples/Python/GeometricObjects/Triangle
Code¶
Triangle.py
import vtk # create a rendering window and renderer ren = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren) # create a renderwindowinteractor iren = vtk.vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) # create points points = vtk.vtkPoints() points.InsertNextPoint(1.0,0.0,0.0) points.InsertNextPoint(0.0,0.0,0.0) points.InsertNextPoint(0.0,1.0,0.0) triangle = vtk.vtkTriangle() triangle.GetPointIds().SetId(0,0) triangle.GetPointIds().SetId(1,1) triangle.GetPointIds().SetId(2,2) triangles = vtk.vtkCellArray() triangles.InsertNextCell(triangle) # polydata object trianglePolyData = vtk.vtkPolyData() trianglePolyData.SetPoints( points ) trianglePolyData.SetPolys( triangles ) # mapper mapper = vtk.vtkPolyDataMapper() if vtk.VTK_MAJOR_VERSION <= 5: mapper.SetInput(trianglePolyData) else: mapper.SetInputData(trianglePolyData) # actor actor = vtk.vtkActor() actor.SetMapper(mapper) # assign actor to the renderer ren.AddActor(actor) # enable user interface interactor iren.Initialize() renWin.Render() iren.Start()