from vtk import * reader1 = vtkXMLTreeReader() reader1.SetFileName("treetest.xml") reader1.Update() view = vtkTreeMapView() view.SetAreaSizeArrayName("size") view.SetAreaColorArrayName("level") view.SetAreaLabelArrayName("name") view.SetAreaLabelVisibility(True) view.SetAreaHoverArrayName("name") view.SetLayoutStrategyToSquarify() view.SetRepresentationFromInput(reader1.GetOutput()) # Apply a theme to the views theme = vtkViewTheme.CreateMellowTheme() view.ApplyViewTheme(theme) theme.FastDelete() view.ResetCamera() view.Render() view.GetInteractor().Start()