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List:       vtkusers
Subject:    Re: [vtkusers] Question on Viewports/vtkChartXY/SetGeometry in
From:       "Marcus D. Hanwell" <marcus.hanwell () kitware ! com>
Date:       2010-11-29 21:29:39
Message-ID: AANLkTi=P-+4MEMqqZuExW5gCLTNFkUzAt8M_XYmHiYfv () mail ! gmail ! com
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Hi,

2010/11/29 Frese Daniel Dr. <frese@heidenhain.de>:
> I am quite new to this stuff so please be patient in case I write just
> nonsense here…
> I try to display two items (for now e.g. two vtkChartXY) using the 2D API. I
> tried to go along the example …/Testing/Cxx/TestMultipleChartRenderers.cxx,
> but unfortunately already this example does not work for me quite as
> expected.
> If I understand correctly, in this example the rendering window is split
> into several viewports and each viewport gets a renderer and so on. If I
> execute, the window is split as advertised, but the plots are badly clipped;
> basically the charts are not scaled to the corresponding viewport size. It
> just looks horrible.
>
> Digging a bit deeper I found, that the vtkChartXY seem to get their geometry
> information from their scenes, so I set explicitly the geometry of the
> corresponding scenes. I  modified TestMultipleChartRenderers.cxx a bit to
> have a look at that:
>
There is some code I am going to merge in soon (not quite finished) to
display multiple charts in the same scene. I will see if I can get it
pushed in soon, as this is a common request. I will of course add a
test demonstrating the functionality. I have marked this thread so
that I remember to reply here once I merge the changes in.

Thanks,

Marcus
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