[vtkusers] vtkBarChartActor - FontSize() won't work

[Eric E. Monson]

Hello,

You can see if you resize the bar chart render view that all of the text and bars have automatic sizing applied to make sure everything fits in the window properly. If you want to see where in the code it happens, it's in vtkBarChartActor.cxx (VTK/Rendering/Annotation), within vtkBarChartActor::PlaceAxes().

I don't know if it would serve your needs, but VTK also has a more recent (and under current development and high performance) set of Charts classes, which includes a bar chart. Here is a link to some slides that the main developer made giving an overview from a couple years ago:

http://www.na-mic.org/Wiki/images/1/18/NA-MIC-VTK-Charts-2011.pdf

and there are a few examples here:

http://www.vtk.org/Wiki/VTK/Examples/Cxx#Plotting

Best,
-Eric


On Mar 7, 2013, at 7:24 PM, harshanand <harsha.nyshadham at gmail.com> wrote:

> I am not sure why this happening, everything works well for vtkBarChartActor
> except for FontSize(), it wont change no matter what value i give . I tried
> changing color and it works, but not the fontsize. What might be the reason?
> 
> Code:
> 
> vtkSmartPointer<vtkBarChartActor> BarChartactor = 
> vtkSmartPointer<vtkBarChartActor>::New();
> 		BarChartactor->SetInput(dataobject);
> 		BarChartactor->SetTitle("string");
>                BarChartactor->GetTitleTextProperty()->SetColor(1,1,0);
>                BarChartactor->GetTitleTextProperty()->SetFontSize(20);
> 
> 
> 
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