Re: [Paraview] volume vs. surface
Hi! Here is a backtrace of the error I´m encountering: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7f9bea407750 (LWP 12368)] 0x7f9be47275cc in vtkFixedPointCompositeHelperGenerateImageOneTrilinfloat () from /home/happenhofer/Paraview/build-svn/bin/libvtkVolumeRendering.so.pv3.4 (gdb) back #0 0x7f9be47275cc in vtkFixedPointCompositeHelperGenerateImageOneTrilinfloat () from /home/happenhofer/Paraview/build-svn/bin/libvtkVolumeRendering.so.pv3.4 #1 0x7f9be46f9909 in vtkFixedPointVolumeRayCastCompositeHelper::GenerateImage () from /home/happenhofer/Paraview/build-svn/bin/libvtkVolumeRendering.so.pv3.4 #2 0x7f9be4803577 in FixedPointVolumeRayCastMapper_CastRays () from /home/happenhofer/Paraview/build-svn/bin/libvtkVolumeRendering.so.pv3.4 #3 0x7f9bdcfd0e54 in vtkMultiThreader::SingleMethodExecute () from /home/happenhofer/Paraview/build-svn/bin/libvtkCommon.so.pv3.4 As I said, this is just occurring when I use the Gradient filter. Do you have any idea what´s going wrong? thx, Natalie Date: Mon, 9 Mar 2009 14:07:49 -0400 Subject: Re: [Paraview] volume vs. surface From: dave.dema...@kitware.com To: natalieh...@hotmail.com CC: paraview@paraview.org Volume Rendering uses opacity to let you see through and inside the data. Surface just shows the outermost surface. Volume rendering is more compute intensive and thus often slower to render. The two usually look very different. I would have to have more details, like a stack trace or at least error output to hazard as guess as to why it might be segfaulting for you. On Mon, Mar 9, 2009 at 2:03 PM, Natalie Happenhofer natalieh...@hotmail.com wrote: Hi! When I load 3D data into Paraview, I first get shown the outline, then I change this to surface to see the associated attribute data. What´s the difference between surface and volume? It looks the same to me - just that I get an segmentation fault when I apply the gradient filter to the data and then want to be shown the Volume - why is this? thx, Natalie Casi 50 razones para tener el nuevo Messenger. ¡Conócelas aquí y bájate el nuevo! ___ 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 -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 _ ¿Quieres saber cómo va a estar el clima mañana? Ingresa ahora a MSN http://tiempo.latam.msn.com/___ 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] The flow process for paraview and interaction between QT and VTK parts
vtk objects are all controlled through vtkSMProxies. This indirection allows the client application to control vtk objects that exist in remote (often parallel) processes as easily as it controls vtk objects that exist within the same process. The QT client application controls vtkSMProxies with the help of pqProxy class. This class helps with vtk event to qt signal slot translation. There is more to the story than just the above. Perhaps Utkarsh, Berk or some of the developers from ETI will add more detail. On Wed, Mar 11, 2009 at 12:04 AM, #CHENG ZHIGAO# chen0...@ntu.edu.sg wrote: Dear developers, I am sorry to trouble you. I am currently involved in a project which needs to use paraview or even add some my own stuffs. As a beginner, i wish i could understand how the paraview works after starting up. How the QT part initialized and set up, especially the parts involved with VTK and QT. For example, if i create a sphere and do some subsequent filt operation, how does the QT part interact with the VTK parts? And how do they keep synchronized with each other? I do wish i can get the answer from you people since it is really hard to find the answer somewhere else. Thanks very much and i really appreciate if any help provided. Best Regards, zhigao ___ 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 -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 ___ 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] Error while saving data
The error, although annoying, does not point to an issue. Slice creates empty blocks because it does not intersect some of the input blocks. The writer is complaining about those. You should be able to read and write despite the errors. I'll report a low priority bug to remove the warning. -berk On Wed, Mar 4, 2009 at 2:00 PM, Fred Fred stan1...@hotmail.fr wrote: Hello, I have a multiblock dataset, which I have sliced and put a SurfaceVectors so as to have a 2D vector field. I have checked that everything is fine by putting a StreamTracer and a Glyph generator but now I would like to save this 2D dataset. What I have done is to select the SurfaceVectors object in the pipeline area, use File-Save Data and select VTK Ascii format and clic the save button. But I get the following message: ERROR: In /usr/local/ParaView-3.4.0/Servers/Filters/vtkCompleteArrays.cxx, line 138 vtkCompleteArrays (0x58eb3280): Could not create point array. The output will not contain points ERROR: In /usr/local/ParaView-3.4.0/Servers/Filters/vtkCompleteArrays.cxx, line 138 vtkCompleteArrays (0x58eb3280): Could not create point array. The output will not contain points I suspect selecting the SurfaceVectors object is not the good way to indicate to Paraview I want to save the sliced subset of the data so how should I proceed? Second question : the bounding volume of the dataset has not changed after I have sliced it so I suspect the new - 2D - dataset will be have a 3D extend, so how to get a real 2D dataset, ie with dimensions like NxPx1? Thanks in advance for your help. Vous voulez savoir ce que vous pouvez faire avec le nouveau Windows Live ? Lancez-vous ! ___ 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] Saving screenshot with multiple views
The current development version at least has a checkbox on the save screenshot dialog that lets you control whether all or just the active view is saved. The default is to save just the active view. I am not sure how far back that feature goes. On Wed, Mar 11, 2009 at 9:29 AM, Renato Elias rnel...@gmail.com wrote: Hey folks, is it possible to save a screenshot of all views in the same image without using the print screen? I noted that the save screenshot menu only saves the active view. thanks in advance Renato. ___ 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 -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 ___ 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] Saving screenshot with multiple views
It is in ParaView 3.4.0. I just checked.
-Ken
On 3/11/09 7:53 AM, Renato Elias rnel...@gmail.com wrote:
Ah, ok! I thought it were something hidden in the GUI. I'll keep using the
print screen solution while the new version is not released.
Thanks David for the info.
Renato.
On Wed, Mar 11, 2009 at 10:32 AM, David E DeMarle dave.dema...@kitware.com
wrote:
The current development version at least has a checkbox on the save
screenshot dialog that lets you control whether all or just the active
view is saved. The default is to save just the active view.
I am not sure how far back that feature goes.
On Wed, Mar 11, 2009 at 9:29 AM, Renato Elias rnel...@gmail.com wrote:
Hey folks,
is it possible to save a screenshot of all views in the same image without
using the print screen? I noted that the save screenshot menu only saves
the active view.
thanks in advance
Renato.
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David E DeMarle
Kitware, Inc.
RD Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109
Kenneth Moreland
*** Sandia National Laboratories
***
*** *** *** email: kmo...@sandia.gov
** *** ** phone: (505) 844-8919
*** web: http://www.cs.unm.edu/~kmorel
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Re: [Paraview] The flow process for paraview and interaction between QT and VTK parts
There are two main layers that deal with moving values from Qt components to
the underlying VTK objects. The first layer is the server manager layer, which
is controlled through the proxies that Dave mentions below. The server manager
layer is documented in Chapter 18 of The ParaView Guide.
There are different mechanisms for going from Qt components to server manager
proxies. Most of the GUI components under the Object Inspector/Properties tab
are managed by the pqPropertyManager class. This class records changes in Qt
GUI components, pushes the changes to the server manager when apply is hit, and
creates entries for the undo/redo stack. The pqPropertyManager class is
usually set up by methods in the pqNamedWidgets class. These methods will
attach QWidgets to server manager properties with the same name. It can also
automatically create Qt Widgets based on the properties in a server manager
proxy.
-Ken
On 3/11/09 6:45 AM, David E DeMarle dave.dema...@kitware.com wrote:
vtk objects are all controlled through vtkSMProxies. This indirection
allows the client application to control vtk objects that exist in
remote (often parallel) processes as easily as it controls vtk objects
that exist within the same process.
The QT client application controls vtkSMProxies with the help of
pqProxy class. This class helps with vtk event to qt signal slot
translation.
There is more to the story than just the above. Perhaps Utkarsh, Berk
or some of the developers from ETI will add more detail.
On Wed, Mar 11, 2009 at 12:04 AM, #CHENG ZHIGAO# chen0...@ntu.edu.sg wrote:
Dear developers,
I am sorry to trouble you. I am currently involved in a project
which needs to use paraview or even add some my own stuffs. As a beginner,
i wish i could understand how the paraview works after starting up. How the
QT part initialized and set up, especially the parts involved with VTK and
QT. For example, if i create a sphere and do some subsequent filt
operation, how does the QT part interact with the VTK parts? And how do
they keep synchronized with each other?I do wish i can get the answer
from you people since it is really hard to find the answer somewhere else.
Thanks very much and i really appreciate if any help provided.
Best Regards,
zhigao
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David E DeMarle
Kitware, Inc.
RD Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109
___
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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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Re: [Paraview] Graphical rendering: troubleshooting
What do you mean by you cannot visualize files? Does the main render window show up (with center axes and all)? Can you create one of the sources in the Sources menu and hit Apply, do you see the visualization correctly? Utkarsh On Wed, Mar 11, 2009 at 12:31 PM, Hugo Gagnon hugo.gagn...@mail.mcgill.ca wrote: I just installed Paraview via Fedora 10 repository. The main window opens correctly but I cannot visualize input files (in vtk format in my case). Are there any other graphical-related packages I should install too? I am using a built-in video GMA 950 on a macbook. Thanks for any input, Hugo. ___ 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] Better names for 'representations' ?
Hello, I am wondering whether it would be possible or reasonable to have ParaView match the names of proxies in 'sources' and 'representations'? When working from Python, it's easy to get a proxy from 'sources' if you know its name from the pipeline. The name even changes when you edit it in the pipeline. In contrast, 'representations' proxies are named 'DataRepresentation1', 'DataRepresentation2', etc., and to find the proper proxy I always have iterate through the representation proxies and check for a match between the proxy from 'sources' and the representation proxy Input. Since I don't understand much about all the client/server/proxy stuff, I don't know if this is a reasonable request, or if it's difficult for PV to do things internally like change the representation name when the source name is changed. 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
