[Paraview] Changing the default volume mapper in Paraview?

Thu Feb 19 16:35:35 EST 2009

No, unless you changed the name for the subproxy which is the "name"
in <SubProxy><Proxy name=".." /></SubProxy>. I'll leave that as is so
the vtkSMUniformGridVolumeRepresentationProxy will just work.

On Thu, Feb 19, 2009 at 4:33 PM, Biao She <shebiao at gmail.com> wrote:
> 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 vtkSMUniformGridVolumeRepresen
> tationProxy.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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>>> >> >>
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>>> >> >>
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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
>