[vtk-developers] Anyone has a Qt/Class widget to modify vtk colormaps for volume rendering?

[Eric E. Monson]

Bah, I totally got screwed up with this reply. Sorry Robert. 

What I meant to point out were the new 2D API classes in Charts like vtkColorTransferFunctionItem and vtkPiecewiseFunctionItem (note the Item at the end of each). It looks like these don't have tests or examples up yet that I can see, except for vtkPiecewiseControlPointsItem, which looks kind of incomplete.

I still think I am right that these are pieces they were/are developing for use in 3DSlicer, so that's a good place to start looking, but I'm sorry I got the other links and references wrong in my earlier reply.

I see that Julien just replied, too, and he's the one that worked on some of this.

Talk to you later,
-Eric


On Jan 26, 2011, at 12:55 PM, Eric E. Monson wrote:

> Hey Robert,
> 
> Hopefully someone more knowledgeable about the current status will reply, too (Marcus, Julien...), but I know there has been some recent work (not in 5.6, but current development and next release) on editing color transfer functions with the 2D API elements in VTK/Charts. I'm sorry I can't guide you to the right examples, but vtkColorTransferFunction and vtkPiecewiseFunction are part of this effort, and I see there are both tests and examples linked from the Doxygen pages that may get you someplace:
> 
> http://www.vtk.org/doc/nightly/html/classvtkColorTransferFunction.html
> http://www.vtk.org/doc/nightly/html/classvtkPiecewiseFunction.html
> 
> These were developed for the 3DSlicer application, which is also an open-source project. I've never looked at the code, but it's at least possible that it may be easier to grab something from there rather than ParaView...
> 
> http://www.slicer.org/
> 
> Hope this at least gets you started on pursuing another possibility,
> -Eric
> 
> ------------------------------------------------------
> Eric E Monson
> Duke Visualization Technology Group
> 
> 
> On Jan 26, 2011, at 11:17 AM, Manzke, Robert wrote:
> 
>> Anyone has a link to a Qt/Class widget to modify vtk colormaps for volume rendering?
>>  
>> I have been checking out the code of Paraview, but the color map editor is pretty sophisticated.
>>  
>> Thanks a lot,
>> Robert
>> 
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