[vtkusers] How to clear canvas using vtkImageCanvasSource2D?

[Kee Tang]

Hi All,

 

I saw a couple postings on this question but no answers.Does anyone know how
to add a drawing object (e.g. FillTube) on the vtkImageCanvasSource2D then
remove it afterwards?  Essentially I'd like to know how to clear the canvas
so I can redraw on it repeatedly.


My current solution is to SetDrawColor(0,0,0,0) then use FillBox(0,
m_CanvasSize-1, 0, m_CanvasSize-1) to clean the canvas but I'm worried this
will continually add objects on the canvas without actually deleting
previous objects. 


Thanks,
K

 

 

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