[Py2exe-users] VTK Python PieChart

[Koteswara R. R. <ru...@ya...>]

I converted the C++ PieChart example at  http://www.vtk.org/Wiki/VTK/Examples/Cxx/Plotting/PieChartat to Python. It is crashing with the following error:

vtkPlotPie [000002153DB80AA0]: No data set [index 0].
Looks like it is failing at pie = vtk.vtkPlotPie.SafeDownCast(chart.AddPlot(0))Not able to figure it out why? Following is the Python code:
import vtk
data = [77938,9109,2070,12806,19514]labels = ["Books","New and Popular","Periodical","Audiobook","Video"]
numItems = 5
#Create a pie chart object and contextview = vtk.vtkContextView()view.GetRenderer().SetBackground(1.0, 1.0, 1.0)view.GetRenderWindow().SetSize(600, 350)
chart = vtk.vtkChartPie()view.GetScene().AddItem(chart)
#Create a table with some points in it...table = vtk.vtkTable()arrData = vtk.vtkIntArray()labelArray  = vtk.vtkStringArray()  
for i in range(numItems):    arrData.InsertNextValue(data[i])    labelArray.InsertNextValue(labels[i])        arrData.SetName("Distance Distribution") table.AddColumn(arrData)
colorSeries = vtk.vtkColorSeries()colorSeries.SetColorScheme(vtk.vtkColorSeries.WARM)
#Add multiple line plots, setting the colors etcpie = vtk.vtkPlotPie.SafeDownCast(chart.AddPlot(0))pie.SetColorSeries(colorSeries)
pie.SetInputData(table)pie.SetInputArray(0,"2008 Circulation")pie.SetLabels(labelArray )chart.SetShowLegend(True)chart.SetTitle("Circulation 2008")
#Finally render the scene and compare the image to a reference imageview.GetRenderWindow().SetMultiSamples(0)view.GetRenderWindow().Render()view.GetInteractor().Initialize()view.GetInteractor().Start()