[vtkusers] vtkChartXY - Initialize to a specific axis range

[Eric E. Monson]

Hey Scott,

vtkAxis has a SetBehavior() method, and if you pass each one vtkAxis::FIXED before setting your ranges they shouldn't get reset. 

http://www.vtk.org/doc/nightly/html/classvtkAxis.html

Let us know if that doesn't work for you for some reason.
-Eric

------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group


On Oct 21, 2010, at 4:49 PM, Scott Fowler wrote:

> I'd like to create a vtkChartXY and initialize it with a specific axis range, however the axis range gets reset during the first Paint event.  Do I have to delay setting my axis ranges until after the Paint event, or is there a better way?
>  
> Code:
> void createChart(vtkTable* data)
> {
> plot = new vtkPlotPoints;
> plot->SetInput(data);
> chart = new vtkChartXY;
> contextView = new vtkContextView;
> contextView->GetScene()->AddItem(chart);
> chart->AddPlot(plot);
> chart->GetAxis(0)->SetRange(200,400);
> chart->GetAxis(1)->SetRange(2,7);
> }
>  
> Paint gets called sometime after this method returns, causing my axis ranges to get reset.  How do I avoid this?
>  
>  
> Scott
> 
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