[Paraview] Setting a color map

[Utkarsh Ayachit]

I couldn't find any code that converts a pqColorMapModel to properties
on the LUT proxy directly. However, once you get access to the
existing LUT proxy on the representation, it shouldn't be too hard to
map the scalar+color values from the pqColorMapModel to the RGBPoints
on the LUT proxy. To access the LUT proxy you can use
pqDataRepresentation::getLookupTableProxy().  There's code in
pqColorScaleEditor::loadPreset that may help, but it doesn't update
the proxy directly.

Utkarsh

On Mon, Jun 13, 2011 at 10:38 AM, Reuter, Michael A. <reuterma at ornl.gov> wrote:
> My current situation is that the user has already chosen an array to color
> by. I'm then using the handy dialog box provided by the
> pqColorPresetManager to allow the user to select a new colormap. I
> retrieve the pqColorMapModel from the selection and then I want to apply
> the new colormap to the current color array.
>
> Cheers,
> M
>
>
>
>
> On 6/13/11 9:08 AM, "Utkarsh Ayachit" <utkarsh.ayachit at kitware.com> wrote:
>
>>Out of curiosity, how was the pqColorMapModel created? It's generally
>>easier to directly manipulate the properties of a lookup table proxy.
>>To provide you with the easiest path forward, I was wondering what
>>your setup is. Has the user chosen the array to color by and now you
>>want to change the  existing LUT's properties or do you want to setup
>>a brand new LUT for this representation. In case of former, any other
>>representation being colored with the same array will automatically
>>use your changed LUT, which won't be the case with the latter.
>>
>>Utkarsh
>>
>>On Fri, Jun 10, 2011 at 1:35 PM, Reuter, Michael A. <reuterma at ornl.gov>
>>wrote:
>>> Hi,
>>>
>>>  I have a pqColorMapModel that I want to programmatically (C++) set on
>>>a pqPipelineRepresentation. I've been looking at the code and thought
>>>that the way forward was via pqScalarsToColors and setting the
>>>LookupTable property on the representation. However, I don't see a way
>>>to translate between the pqColorMapModel and pqScalarsToColors. What is
>>>the correct way to handle this situation?
>>>
>>> Thanks,
>>> M
>>>
>>>
>>> Dr. Michael Reuter
>>> Scientific Data Analysis Group
>>> Neutron Scattering Science Division
>>> Oak Ridge National Laboratory
>>>
>>> Office: 1-865-241-7216
>>> Fax: 1-865-574-6080
>>> Email: reuterma at ornl.gov<mailto:reuterma at ornl.gov>
>>>
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>
>