Re: [Paraview] particletracer
Martin 4. Selecting my dataset go to filters and particletracer. In the new window I'm choosing 'source' as input port. Under 'select source(s)' I'm holding down the shift key and click on temporal cache and line. Then I click OK. WRONG! The input is the termporal data (Temporal Cache) The source is the seed points (Line) There is a reason why there are TWO separate filter inputs. I'd have thought that that was so blindingly obvious that it didn't need explanation. the inputs should be called Temporal Input and Seeds, but unfortunately, the XML doesn't let me override the names inherited from StreamTracer. JB ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Mesh edition / modification with paraview
Thanks a lot for this response Berk. I will think about it. Not easy apparently. The structured mesh edition (for FDTD purpose) is a particular task, and no library exists :-(. I envisage to write an app based upon paraview, I need Paraview's large data handling capability. Cheers, Cyril Giraudon. Berk Geveci a écrit : Can the output of a filter be the input once modified and without a copy ? (I don't want to create a new vtkDataSet each time an operation is executed) No, it can't. VTK is designed such that filters never change their input. Otherwise, the demand-driven pipeline paradigm breaks down. You can write a custom application based on VTK or ParaView that does not use the pipeline and can allow editing of meshes in place. However, this would probably take some significant amount of work. Another issue you would encounter is that VTK data structures are designed to be efficient in memory usage and time to setup but not for quick editing. This follows the demand-driven pipeline design. My recommendation would probably be to use VTK/ParaView in conjunction with another library that provides good support for mesh editing. Best, -berk On Mon, Feb 16, 2009 at 6:08 AM, cyril giraudon cyril.girau...@free.fr wrote: Thanks David for your answer, Can the output of a filter be the input once modified and without a copy ? (I don't want to create a new vtkDataSet each time an operation is executed) I'd like to handle a huge amount of data (1000^3 cubes minimum), is the IO operation can be a problem for the save to disk task of the mesh ? Cheers, Cyril. David E DeMarle a écrit : Yes. ParaView stores data in vtkDataSets, and each filter in ParaView takes in one or more vtkDataSets, looks at them, and produces one or more vtkDataSets (often by shallow copying the inputs). If you understand the vtkDataSet and vtkAlgorithm API's well enough, the operations you describe are fairly easy to accomplish. (See the python programmable filter wiki page for examples). However, providing a good UI that lets the user control which parts of the DataSet geometry and topology are modified is not altogether trivial. That would probably require significant use of vtkWidgets to create the visual editing tools, ParaView's Proxy/Property pattern to map the tools behavior over to the server side filter properties, and how ParaView's QT ObjectPanel interfaces exposes properties in the client application. On Fri, Feb 13, 2009 at 11:09 AM, Cyril Giraudon cyril.girau...@free.fr wrote: Hello, Paraview is very well known in the data visualisation area. However, I'd like to know whether it is possible to write a plugin able to modify a mesh, for instance to move a selected point of a mesh. By extension, would it be possible to use paraview (with a new plugin) to edit a structured orthogonal mesh in order to add/remove an edge, a face or an element (a cube) ? Thanks a lot, Cyril Giraudon. ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Parallel VTK
FYI, the [ParaView] in the subject line is added automatically by the mailing list, you don't have to add it explicitly. On Wed, Feb 18, 2009 at 1:58 PM, Samuele Zampini lelelel...@libero.it wrote: Hi all, I am trying to use this database (actually, I am attaching just an example) with the ParallelVTK language for Paraview. I get an error message. What's, to you? Thanks for help, Samuele. PS: sorry if this is the 2nd email, but I forgot to write [Paraview] in the subject ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Changing the default volume mapper in Paraview?
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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] VTK 5.4 Release (Please Read!)
After 5.4 is released, can we expect (hope) for a move from CVS to git or subversion? /mark -Original Message- From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org] On Behalf Of Bob Obara Sent: Monday, January 19, 2009 8:13 PM To: vtk-develop...@public.kitware.com; paraview@paraview.org Subject: [Paraview] VTK 5.4 Release (Please Read!) In the next couple weeks we are planning to start the process of creating the 5.4 version of VTK. If you have tests on the main branch that are currently failing on the dashboard please take the time correct them next week. Please hold off committing any changes that you will not be able fully debug/test until after VTK has been branched for the 5.4 release. We will let you know asap when the date of the CVS freeze of VTK has been set. Thank you for your time and help. Bob Robert M. O'Bara, MEng. Research Development Engineer Kitware Inc. 28 Corporate Drive Suite 101 Clifton Park, NY 12065 This e-mail message and any attachments may contain legally privileged, confidential or proprietary Information, or information otherwise protected by law of EMCON Technologies, its affiliates, or third parties. This notice serves as marking of its Confidential status as defined in any confidentiality agreements concerning the sender and recipient. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this e-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this e-mail message from your computer. ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Getting proxy names from proxy manager.
The cout is never shown since GetProxyName() returns 0 for the second
time around. A cleaner alternative would be to use the
vtkSMProxyIterator to iterate over a group (using
iter-Begin(sources)).
Utkarsh
On Wed, Feb 11, 2009 at 4:29 PM, Juan Fernando Duque Lombana
jduqu...@eafit.edu.co wrote:
Using the following c++ code:
myBox=builder-createSource(sources, CubeSource, s);
myBox-rename(QString(VWTBoundary));
myBox-setModifiedState(pqProxy::UNMODIFIED);
pqOutputPort* opPort = myBox-getOutputPort(0);
builder-createDataRepresentation(opPort,myActiveView.current());
I've been able to create an unitary box named in my pipeline VWTBoundary .
Using the following code:
vtkSMProxyManager *pxm = vtkSMProxyManager::GetProxyManager();
cout RUNNING endl;
unsigned int nproxies=pxm-GetNumberOfProxies(sources);
cout Nproxies: nproxies endl;
for(unsigned int i =0; i nproxies; i++)
{
vtkSMProxy *proxy = pxm-GetProxy(sources,i);
cout pxm-GetProxyName(sources,i) endl;
}
cout FINNISHING endl;
I'm suppously able to get the proxy names of the group sources.
The question is as follows:
When I generate a single box, the code works flawlessly. When I have 2
proxies with the same name on the pipeline, the code doesn't seems to finish
(I never get the last cout output).
Any Ideas?
Thanks in advance!
... Juan Fernando Duque Lombana.
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Re: [Paraview] Visualizing histogram
Hi, Sorry I missed this email until now. I have some python code that demonstrates how to use the new vtk based charts and vtkTable. Using this python interface it should be possible to save a screenshot of the barchart or XY plot. I have the code as a patch but it won't be committed until after the vtk 5.4 release. Pat On Wed, Feb 11, 2009 at 12:10 PM, Mark Richardson m...@elemtech.com wrote: Pat had some python code to test the chart python wrapping, but it doesn't look like it's in cvs. The api should be similar to c++ though. You can look at vtk/guisupport/qt/testing/cxx/TestVtkBarChartView.cxx as an example. You'll just have to convert it to python calls and import the right modules. I haven't played with vtk python, so I'm not sure what module the views show up in. Mark - Original Message - From: Jacques Papper jpap...@ara.co.uk To: Mark Richardson m...@elemtech.com Cc: paraview paraview@paraview.org Sent: Wednesday, February 11, 2009 4:38:09 AM GMT -07:00 US/Canada Mountain Subject: RE: [Paraview] Visualizing histogram How can I access this through pvpython ? Do you have any example to put me on the right track ? Thanks Jacques -Original Message- From: Mark Richardson [mailto:m...@elemtech.com] Sent: 10 February 2009 17:28 To: Jacques Papper Cc: paraview Subject: Re: [Paraview] Visualizing histogram The new charts in vtk/guisupport/qt/chart have support for strings and numbers on the axes. The old charts only support numbers. We're currently integrating the new charts into paraview. Then, you'll be able to view the vtkTable. The chart views in vtk/guisupport/qt can be displayed using python. There are some tests you can use as an example (I can't remember where they are at the moment). I'm not sure how well that will work in paraview though. It may have to be done stand-alone. Mark Richardson - Original Message - From: Jacques Papper jpap...@ara.co.uk To: John Biddiscombe biddi...@cscs.ch, paraview paraview@paraview.org Sent: Tuesday, February 10, 2009 9:30:29 AM GMT -07:00 US/Canada Mountain Subject: [Paraview] Visualizing histogram John, Thanks a lot for your help. I have re-used part of your code to create a Multi-block to table filter. (Basically exactly the same as your probeIntegration but without the integration step). The problem I have now is in creating a histogram which has the Block Id (String - first column of data in my vtkTable) on the x axis and the data on the y axis. It seems that the histogram plotting capability in ParaView can not handle String Ids instead of numbers. - Has anyone implemented such capability ? - What is the best way to access the vtkTable object through Python directly (to then possibly use some python plotting facility)? - Is it possible to create an image (Jpg, png etc..) from Python of an XY plot or a Bar Chart ? Jacques PAPPER Applied CFD Team Leader Tel: +44 (0) 1234 324677 --- This email contains information that is private and confidential and is intended only for the addressee. If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender. Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons. Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview --- This email contains information that is private and confidential and is intended only for the addressee. If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender. Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons. Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Emissive polygons?
I am probably confused here but isn't setting ambient to larger than 0 in vtkProperty supposed to do that? -berk On Wed, Feb 18, 2009 at 4:23 PM, Moreland, Kenneth kmo...@sandia.gov wrote: I'm afraid not. It looks like that functionality is not even support in VTK. Implementing light emission that is constant for whole objects would be pretty straightforward, but would require modifying code all the way to VTK's rendering layer. -Ken On 2/18/09 1:55 PM, Eric E. Monson emon...@cs.duke.edu wrote: Hello, I'm not sure if I'm using the proper terminology, but is it possible in ParaView to give polygons or 3d cells an emissive property for the lighting, so they give off light instead of reflecting it? Thanks, -Eric -- Eric E Monson Duke Visualization Technology Group ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview Kenneth Moreland *** Sandia National Laboratories *** *** *** *** email: kmo...@sandia.gov ** *** ** phone: (505) 844-8919 *** web: http://www.cs.unm.edu/~kmorel ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Extract cell type from unstructured grid
And then use the Cell Types array in the Threshold filter, I guess? -berk On Wed, Feb 18, 2009 at 11:55 AM, Moreland, Kenneth kmo...@sandia.gov wrote: Paul, I don't know of any existing filter to do that, but a pretty simple programmable filter can do it. Here is the script that will achieve it. Just create a custom filter and copy this into the script. input = self.GetUnstructuredGridInput() output = self.GetUnstructuredGridOutput() output.GetPointData().PassData(input.GetPointData()) output.GetCellData().PassData(input.GetCellData()) cellTypes = vtk.vtkUnsignedCharArray() cellTypes.DeepCopy(input.GetCellTypesArray()) cellTypes.SetName(Cell Types) output.GetCellData().AddArray(cellTypes) If you plan to use this multiple times, you probably want to wrap this in a custom filter. -Ken On 2/18/09 5:07 AM, Paul Edwards paul.m.edwa...@gmail.com wrote: Hello, Does anyone know an easy way to extract all cells of a particular type from an unstructured grid (without writing code either a plugin or python script)? I was thinking it be possible with the calculator and the number of points in a cell but I can't get access to that. Thanks, Paul Kenneth Moreland *** Sandia National Laboratories *** *** *** *** email: kmo...@sandia.gov ** *** ** phone: (505) 844-8919 *** web: http://www.cs.unm.edu/~kmorel ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Changing the default volume mapper in Paraview?
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.ayac...@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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Parallel VTK
Dear Berk, I've switched from source to Source but nothing happened. Better, I get a crash, now, instead of an error message. Any other idea? Thanks, Samuele. Il giorno gio, 19/02/2009 alle 09.41 -0500, Berk Geveci ha scritto: Hi Samuele, As you can see in the error, the pvtr file is missing the Source attribute for each piece. Keep in mind that the XML format is case sensitive. You should switch from source to Source. -berk On Wed, Feb 18, 2009 at 1:03 PM, Samuele Zampini lelelel...@libero.it wrote: Hi all, I am trying to use this database (actually, I am attaching just an example) with the ParallelVTK language for Paraview. I get an error message. What's, to you? Thanks for help, Samuele. ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview dati2.vtr Description: XML document dati.pvtr Description: XML document dati1.vtr Description: XML document ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Changing the default volume mapper in Paraview?
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.mar...@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.ayac...@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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
[Paraview] AnatomicaOrientation and TransformMatrix
The TransformMatrix and AnatomicalOrientation seem to have no effect on the positioning of the data in an MHA file within paraview TransformMatrix = 1 0 0 0 1 0 0 0 1 AnatomicalOrientation = RAI shouldn't TransformMatrix = 1 0 0 0 0 1 0 1 0 produce a 90 deg rotation about the x-axis of the data in an mha file ? ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Emissive polygons?
No, they are different (although you might be able to get a similar effect).
The ambient light represents a base level of lighting coming from all
directions that is formed (in real life) by light coming actual light sources
and bouncing around the objects in the room. It is the light that illuminates
an object that is in shadow from all light sources. Because OpenGL does not
compute the amount of light that gets scattered around the scene, for each
light you specify an ambient parameter representing the amount you expect the
light to be bouncing around the scene. OpenGL also allows you to specify
different colors for ambient and diffuse reflection of materials. In real
life, these are always the same, but changing them sometimes allows you to work
around some of the approximations that OpenGL makes.
Emission is light that originates directly from an object. It is a color that
is completely impendent of any lights (because the light is coming from the
object itself). Objects like turned on light bulbs or glow-in-the-dark toys
have emission. Unlike in real life, light from polygons with emission in
OpenGL do not affect other objects (another approximation introduced by OpenGL).
For more information, check out the chapter on Lighting in the red OpenGL book.
-Ken
On 2/19/09 7:45 AM, Berk Geveci berk.gev...@kitware.com wrote:
I am probably confused here but isn't setting ambient to larger than 0
in vtkProperty supposed to do that?
-berk
On Wed, Feb 18, 2009 at 4:23 PM, Moreland, Kenneth kmo...@sandia.gov wrote:
I'm afraid not. It looks like that functionality is not even support in
VTK. Implementing light emission that is constant for whole objects would
be pretty straightforward, but would require modifying code all the way to
VTK's rendering layer.
-Ken
On 2/18/09 1:55 PM, Eric E. Monson emon...@cs.duke.edu wrote:
Hello,
I'm not sure if I'm using the proper terminology, but is it possible
in ParaView to give polygons or 3d cells an emissive property for
the lighting, so they give off light instead of reflecting it?
Thanks,
-Eric
--
Eric E Monson
Duke Visualization Technology Group
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Kenneth Moreland
*** Sandia National Laboratories
***
*** *** *** email: kmo...@sandia.gov
** *** ** phone: (505) 844-8919
*** web: http://www.cs.unm.edu/~kmorel
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Kenneth Moreland
*** Sandia National Laboratories
***
*** *** *** email: kmo...@sandia.gov
** *** ** phone: (505) 844-8919
*** web: http://www.cs.unm.edu/~kmorel
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[Paraview] Extracting data
Hi I have a multi-block time series data set (23 blocks). I select some blocks (0,6,12,18) using extractBlock filter. I then use the plot over line to plot some variables in my selected blocks. If i wanted to save the extracted blocks, i can save as a *.vtm file. However, it only saves the current time step as far as I can see. Is there any way of saving all of the time steps (of the extracted data). I guess basically, I am trying to save a sub set of my initial data set, and my problem is it is only saving the current time step. Can some one tell me what I am doing wrong? Regards, Rakesh ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
Re: [Paraview] Changing the default volume mapper in Paraview?
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.ayac...@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 sheb...@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: 0xC005: Access violation reading location 0x. 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.ayac...@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.mar...@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.ayac...@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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview -- She, Biao Department of Computing Science, University of Alberta, Edmonton, Canada ___ Powered by www.kitware.com Visit other Kitware open-source
Re: [Paraview] Changing the default volume mapper in Paraview?
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 sheb...@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.ayac...@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 sheb...@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: 0xC005: Access violation reading location 0x. 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.ayac...@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.mar...@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.ayac...@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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview ___ Powered by www.kitware.com Visit other Kitware open-source projects at
Re: [Paraview] Changing the default volume mapper in Paraview?
No, unless you changed the name for the subproxy which is the name in SubProxyProxy 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 sheb...@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 sheb...@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.ayac...@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 sheb...@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: 0xC005: Access violation reading location 0x. 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.ayac...@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.mar...@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.ayac...@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 sheb...@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 ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView
Re: [Paraview] Changing the default volume mapper in Paraview?
Thanks very much for your help, Utkarsh. The OpenGLVolumeTextureMapper3D works right now. Just for future reference, here are instructions to make a volume mapper available in paraview: 1. open the rendering.xml file at the /$Paraveiw-Source-Directory/Servers/ServerManager/Resources directory. 2. copy the SourceProxy definition of FixedPointVolumeRayCastMapper, paste it after the definition and made the following changes: (the bold ones are the places where I made changes ) SourceProxy name=*OpenGLVolumeTextureMapper3D* class=*vtkOpenGLVolumeTextureMapper3D* InputProperty name=Input command=SetInputConnection DataTypeDomain name=input_type DataType value=vtkImageData/ /DataTypeDomain /InputProperty StringVectorProperty name=SelectScalarArray command=SelectScalarArray number_of_elements=1 animateable=0 ArrayListDomain name=array_list attribute_type=Scalars RequiredProperties Property name=Input function=Input/ /RequiredProperties /ArrayListDomain /StringVectorProperty IntVectorProperty name=ScalarMode command=SetScalarMode default_values=3 number_of_elements=1 animateable=0 EnumerationDomain name=enum Entry value=0 text=Default/ Entry value=1 text=PointData/ Entry value=2 text=CellData/ Entry value=3 text=PointFieldData/ Entry value=4 text=CellFieldData/ /EnumerationDomain /IntVectorProperty IntVectorProperty name=LockSampleDistanceToInputSpacing command=SetLockSampleDistanceToInputSpacing default_values=1 number_of_elements=1 animateable=0 BooleanDomain name=bool / /IntVectorProperty !-- End of FixedPointVolumeRayCastMapper -- /SourceProxy 3. find the SubProxy of VolumeFixedPointRayCastMapper, make the following change (bold): SubProxy Proxy name=VolumeFixedPointRayCastMapper proxygroup=mappers proxyname=*OpenGLVolumeTextureMapper3D* /Proxy ExposedProperties Property name=LockSampleDistanceToInputSpacing / /ExposedProperties /SubProxy 4. find the header file of vtkOpenGLVolumeTextureMapper3D at the /$Paraveiw-Source-Directory/VTK/VolumeRendering/ directory. add *vtkSetClampMacro( LockSampleDistanceToInputSpacing, int, 0, 1 );* as public method, add *int LockSampleDistanceToInputSpacing;* as a protected variable. 5. compile your program and go. I understand that vtkOpenGLVolumeTextureMapper3D mapper doesn't need a property of LockSampleDistanceToInputSpacing, but this is the fastest way for me to make the mapper works. Any clue about how to get rid of the variable? Thanks again for all the helps! Biao On Thu, Feb 19, 2009 at 2:35 PM, Utkarsh Ayachit utkarsh.ayac...@kitware.com wrote: No, unless you changed the name for the subproxy which is the name in SubProxyProxy 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 sheb...@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 sheb...@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.ayac...@kitware.com wrote: Did you add a new proxy definition for the OpenGLVolumeTextureMapper3D proxy? Look at the definition
[Paraview] Change reader file name in python loaded state
Hey again, Back maybe around PV 3.2, I could load a state file in Python (outside of PV) which included readers for pvd files. I could find the proxies for the file readers, and then change the file name, update the pipeline, and then save or display an animation using the new data set. I haven't tried this for a while because I'm now working with Xdmf files, and the reader didn't work with ParaView Python well enough until more recently. Now, when I try the same scripts, the reader on which I change the file name doesn't show anything at all in the render view. (i.e. I have two readers in my pipeline -- if I don't change any file names I can load in the state file and animate fine -- if I change one file name only that element of my visualization drops out, but I can see and animate the other -- if I change both names the renderview looks blank during the whole animation.) I'm doing something like: from paraview import servermanger servermanager.Connect() servermanager.LoadState(/Users/emonson/Data/StateFile.pvsm) pm = servermanager.ProxyManager() reader = pm.GetProxy(sources,OriginalDataSet.xmf) reader.FileName = /Users/emonson/Data/NewDataSet.xmf reader.UpdatePipeline() view = servermanager.GetRenderView() view.StillRender() I see that in CVS there is a reader.FileNameChanged(), but calling that doesn't seem to fix it. Is there something obvious I'm failing to do, or does this look like this should work? Thanks, -Eric -- Eric E Monson Duke Visualization Technology Group ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
