[vtkusers] Save vtkChartXY to PNG

[Jakub Poła]

Good Morning,

I have question related to create charts in vtk. Is it possible to save 
chart as png image without creating the snapshot of window like in 
paraview? I would like to write a batch program which aims to analyze 
large data set and creates series of charts.
I have vtkTable feeded by the vtkExtractArraysOverTime filter, then 
basing on this table I would like to create chart object which I would 
like save as PNG image.

Thank you very much for your support.
Jakub

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Pozdrawiam,
Jakub Poła