# ColoredTriangle

VTKExamples/Python//ColoredTriangle

### Decription

Creates a file TriangleColored.vtp.

### Code

ColoredTriangle.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
    Colors = vtk.vtkUnsignedCharArray()
    Colors.SetNumberOfComponents(3)
    Colors.SetName("Colors")
    Colors.InsertNextTuple3(255,0,0)
    Colors.InsertNextTuple3(0,255,0)
    Colors.InsertNextTuple3(0,0,255)

    polydata = vtk.vtkPolyData()
    polydata.SetPoints(Points)
    polydata.SetPolys(Triangles)

    polydata.GetPointData().SetScalars(Colors)
    polydata.Modified()
    if vtk.VTK_MAJOR_VERSION <= 5:
        polydata.Update()

    writer = vtk.vtkXMLPolyDataWriter()
    writer.SetFileName("TriangleColored.vtp")
    if vtk.VTK_MAJOR_VERSION <= 5:
        writer.SetInput(polydata)
    else:
        writer.SetInputData(polydata)

    writer.Write()