[Paraview] volume color transfer table.

[Burlen Loring]

that is indeed annoying, and would be very nice to be able to save the 
opacity table. A work around is use a state file. The opacity tables 
will be saved/restored. note: 4.2 has a bug in state file loading re: 
time. depending on your scenario you may need to use 4.1.

On 11/07/2014 08:33 AM, Anderson, Lawrence S. wrote:
> thanks for the attention!  I should also point out that i have tried the import/export options on the color table editing feature- opacity is not preserved.  i.e. when i export a table to an xml file, the opacities all revert to 1.0, and when i import an xml file, any ' o="x.xx" ' value is ignored, and whatever opacity function in the editor from previous work is applied instead.
> cheers-
> -lawrence a.
>
> ________________________________________
> From: Utkarsh Ayachit [utkarsh.ayachit at kitware.com]
> Sent: Friday, November 07, 2014 9:01 AM
> To: Anderson, Lawrence S.; Aashish Chaudhary
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] volume color transfer table.
>
> To the best of my knowledge, the current volume mappers in
> VTK/ParaView need to use a color/opacity transfer functions. Aashish,
> is that changing with the new volume rendering code?
>
> Utkarsh
>
> On Wed, Nov 5, 2014 at 3:12 PM, Anderson, Lawrence S.
> <LAWRENCE.ANDERSON at utoledo.edu> wrote:
>> hi-  i have seen this question on various blogs, but not the answer in a
>> usable form for me...
>> i provide project data to paraview via vtk legacy files in ascii.  the
>> default color mapping functions provided by paraview do not decouple opacity
>> from color, so i am providing my own look_up table of RGBa values organized
>> in such a way that i can apply different opacities to the same color, and
>> different colors to the same opacity.  it works for surface rendering, but
>> not for volume rendering- i.e. when choosing the volume option, the
>> rendering reverts back to one of the default tables.  how do i apply my
>> scalar color table in the vtk file to volumes?
>> i could laboriously enter 120x4 values into the paraview mapping editor, but
>> that seems silly...
>> thank you!
>> and as i am new to paraview and this list mail option, feel free to refer me
>> to an old post.
>> -lawrence anderson, university of toledo
>>
>>
>>
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