[Paraview] Changing the default volume mapper in Paraview?

[Biao She]

Sorry, please ignore the first question. I know what you mean right now.
But, please look at the second question:
"Also, I notice that in the vtkSMUniformGridVolumeRepresentationProxy.cxx
file (Servers/ServerManager/), between line 100~117, there are some code
specifically related to VolumeFixedPointRayCastMapper, do I need to change
these codes too?"

Thanks,

Biao

On Thu, Feb 19, 2009 at 2:27 PM, Biao She <shebiao at gmail.com> wrote:

> I didn't add a new proxy definition for "OpenGLVolumeTextureMapper3D".
> Instead, I change the definition for "VolumeFixedPointRayCastMapper" to
> something like that:
> <SubProxy>
>          <Proxy name="VolumeFixedPointRayCastMapper"
>            proxygroup="mappers"
>            proxyname="OpenGLVolumeTextureMapper3D">
>          </Proxy>
>   </SubProxy>
> It didn't work.
> By now, I have tried to add a new proxy definition for
> "OpenGLVolumeTextureMapper3D", but I got the same error message. The
> following is the XML proxy I wrote:
> <SubProxy>
>         <Proxy name="VolumeOpenGLTexture3DMapper"
>           proxygroup="mappers"
>           proxyname="OpenGLVolumeTextureMapper3D">
>         </Proxy>
>         <ExposedProperties>
>           <Property name="SampleDistance" />
>         </ExposedProperties>
> </SubProxy>
> I am wondering if I understand you incorrect.
> Also, I notice that in the vtkSMUniformGridVolumeRepresentationProxy.cxx
> file (Servers/ServerManager/), between line 100~117, there are some code
> specifically related to VolumeFixedPointRayCastMapper, do I need to change
> these codes too?
>
> Thanks very much for your help.
>
> Biao
>
>
>
> On Thu, Feb 19, 2009 at 12:57 PM, Utkarsh Ayachit <
> utkarsh.ayachit at kitware.com> wrote:
>
>> Did you add a new proxy definition for the
>> "OpenGLVolumeTextureMapper3D" proxy? Look at the definition for
>> "VolumeFixedPointRayCastMapper" (it's further down in the file).
>> You'll need to add a similar one for the "OpenGLVolumeTextureMapper3D"
>> proxy.
>>
>> On Thu, Feb 19, 2009 at 2:55 PM, Biao She <shebiao at gmail.com> wrote:
>> > Thanks for your help.
>> > I have tried to change "FixedPointVolumeRayCastMapper to something else"
>> in
>> > the XML file. However, it still didn't work.
>> > I am pretty new to these XML files. To the best of my knowledge, I
>> changed
>> > the XML file to:
>> > <SubProxy>
>> >         <Proxy name="VolumeFixedPointRayCastMapper"
>> >           proxygroup="mappers"
>> >           proxyname="OpenGLVolumeTextureMapper3D">
>> >         </Proxy>
>> >  </SubProxy>
>> > I simply delete the "ExposedProperties" part for this mapper, because I
>> > don't know how to decide which property should be exposed.
>> > After those changes, I opened the iron_protein.vtk data with paraview.
>> Here
>> > is the error message I got:
>> >
>> > Unhandled exception at 0x0519e423(vtkPVServerManager.dll) in
>> paraview.exe:
>> > 0xC0000005: Access violation reading location 0x00000000.
>> >
>> > Is that because the proxyname is wrong? Or do
>> > I ｈａｖｅ ｔｏ ｅｘｐｏｓｅ ｓｏｍｅ ｐｒｏｐｅｒｔｉｅｓ？
>> >
>> > Ｂｉａｏ
>> >
>> > On Thu, Feb 19, 2009 at 9:17 AM, Utkarsh Ayachit
>> > <utkarsh.ayachit at kitware.com> wrote:
>> >>
>> >> The combo-box is only for unstructured volume rendering (and works
>> >> perfectly fine for that). I believe Biao is taking about image data
>> >> volume rendering.
>> >>
>> >> Utkarsh
>> >>
>> >> On Thu, Feb 19, 2009 at 10:06 AM, pat marion <pat.marion at kitware.com>
>> >> wrote:
>> >> > There is a combo box in the Display tab that allows you to select the
>> >> > volume mapper, but it looks like that combo box is not working.  I
>> >> > know it used to work, does anyone know what happened?
>> >> >
>> >> > Pat
>> >> >
>> >> > On Thu, Feb 19, 2009 at 7:38 AM, Utkarsh Ayachit
>> >> > <utkarsh.ayachit at kitware.com> wrote:
>> >> >> I know it's kind of hacky, but you can simply edit the XML file and
>> >> >> change the mapper used. Look at
>> >> >> Servers/ServerManager/Resources/rendering.xml. In the XML for
>> >> >> "UniformGridVolumeRepresentation"
>> >> >> change FixedPointVolumeRayCastMapper to something else. Then after
>> the
>> >> >> definition for FixedPointVolumeRayCastMapper, add a new definition
>> for
>> >> >> the VolumeTextureMapper3D and use that in the
>> >> >> "UniformGridVolumeRepresentation". I am not sure it's going to work
>> >> >> out of the box. But work a try.
>> >> >>
>> >> >> Utkarsh
>> >> >>
>> >> >> On Wed, Feb 18, 2009 at 6:42 PM, Biao She <shebiao at gmail.com>
>> wrote:
>> >> >>> Hi everyone.
>> >> >>> I have debugged paraview for days. The reason is that I want to use
>> >> >>> vtkOpenGLVolumeTextureMapper3d mapper instead of the default volume
>> >> >>> mapper
>> >> >>> vtkFixedPointVolumeRayCastMapper in Paraview.
>> >> >>> Till now, I haven't figured out how to do that. Has anyone done
>> this
>> >> >>> before?
>> >> >>> Any hint and help is greatly appreciated.
>> >> >>> Thanks,
>> >> >>>
>> >> >>> Aaron
>> >> >>>
>> >> >>>
>> >> >>>
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>>
>
>
>
> --
> She, Biao
> Department of Computing Science,
> University of Alberta, Edmonton, Canada
>



-- 
She, Biao
Department of Computing Science,
University of Alberta, Edmonton, Canada
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