SolidColoredTriangle
VTKExamples/Python//SolidColoredTriangle
Code¶
SolidColoredTriangle.py
import vtk from vtk import * #setup points and vertices Points = vtk.vtkPoints() Triangles = vtk.vtkCellArray() 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.InsertNextCell(Triangle); #setup colors (setting the name to "Colors" is nice but not necessary) Colors = vtk.vtkUnsignedCharArray(); Colors.SetNumberOfComponents(3); Colors.SetName("Colors"); Colors.InsertNextTuple3(255,0,0); polydata = vtk.vtkPolyData() polydata.SetPoints(Points) polydata.SetPolys(Triangles) polydata.GetCellData().SetScalars(Colors); polydata.Modified() if vtk.VTK_MAJOR_VERSION <= 5: polydata.Update() writer = vtk.vtkXMLPolyDataWriter(); writer.SetFileName("TriangleSolidColor.vtp"); if vtk.VTK_MAJOR_VERSION <= 5: writer.SetInput(polydata) else: writer.SetInputData(polydata) writer.Write()