[Paraview] volume color transfer table.

[Anderson, Lawrence S.]

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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