[vtkusers] vtkChartXY Zoom

[Andras Lasso]

If all your axes are set to vtkAxis::AUTO, then you can simply call vtkChartXY::RecalculatePlotBounds().

If you have manually set axes then you can take this method in 3D Slicer's plot view class: https://github.com/Slicer/Slicer/blob/66b152bc35e1f84eafcacd8050300687fa377229/Libs/MRML/Widgets/qMRMLPlotView.cxx#L458-L600

It would probably make sense to integrate this auto-fit feature into VTK.

Andras

-----Original Message-----
From: vtkusers <vtkusers-bounces at vtk.org> On Behalf Of Seun Odutola
Sent: Monday, April 16, 2018 3:15 PM
To: VTK Users <vtkusers at vtk.org>
Subject: [vtkusers] vtkChartXY Zoom

Hi everyone,

   I was wondering if someone could help me out on this one. I would like to display a large set of points on a vtkChartXY without any of the points off screen (that is I’ll like to be able to see all points as though the scene was zoomed out). How do I go about achieving this effect.
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