<div dir="ltr"><div><div></div>VTK has 2 ways to color datasets.<br></div>You can directly specify color or you can make the mapper to use look up table to color according to point or cell scalar array.<br><div><div><div>
<br><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCells">http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCells</a><br><br></div><div>Does this answer your question?<br></div></div></div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Sat, Jul 20, 2013 at 2:44 AM, Ruff <span dir="ltr"><<a href="mailto:albin.nilsson@gmail.com" target="_blank">albin.nilsson@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I would like some way to rewrite the current color- and opacity settings.<br>
I have a structuredPoints-set and I am currently using one scalar value and<br>
the following settings for volume rendering:<br>
<br>
opacity = vtk.vtkPiecewiseFunction()<br>
opacity.AddPoint('scalar', 'opacity') #repeated a bunch of times<br>
colors = vtk.vtkColorTransferFunction()<br>
colors.AddRGBPoint('scalar','red','green','blue') #repeated a bunch of times<br>
<br>
(the opacity and colors goes into ->vtkVolumeProperty->vtkVolume)<br>
Is there some easy way to rewrite this so I can color structuredPoints with<br>
3 scalars in it?<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://vtk.1045678.n5.nabble.com/creating-colortables-and-opacity-with-3-scalars-rather-than-1-tp5722091.html" target="_blank">http://vtk.1045678.n5.nabble.com/creating-colortables-and-opacity-with-3-scalars-rather-than-1-tp5722091.html</a><br>
Sent from the VTK - Users mailing list archive at Nabble.com.<br>
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</blockquote></div><br></div>