# ColoredTriangle

VTKExamples/Python/PolyData/ColoredTriangle

### Decription

Creates a file TriangleColored.vtp.

### Code

ColoredTriangle.py

    import vtk

    def main():
        colors = vtk.vtkNamedColors()

        # 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(*colors.GetColor3ub('Red'))
        Colors.InsertNextTuple3(*colors.GetColor3ub('Lime'))
        Colors.InsertNextTuple3(*colors.GetColor3ub('Blue'))

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

        polydata.GetPointData().SetScalars(Colors)
        polydata.Modified()

        writer = vtk.vtkXMLPolyDataWriter()
        writer.SetFileName("TriangleColored.vtp")
        writer.SetInputData(polydata)
        writer.Write()

    if __name__ == '__main__':
        main()