Re: [Paraview] Delaunay 3D filter too slow
paraview@paraview.orgmailto:paraview@paraview.org mailto:paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov mailto:kmo...@sandia.govmailto:kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.orghttp://paraview.org http://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com mailto:pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov mailto:kmo...@sandia.govmailto:kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I have only 16020 points for test.My cpu is AMD Athlon(tm) II P320 Dual-Core Processor with 2.1GHz.How long will it take in this case if I use one cpu to calculate?I have wait for more than 10 minutes before stopping it. 2013/9/24 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov mailto:kmo...@sandia.govmailto:kmo...@sandia.gov Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com mailto:pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.orgmailto:paraview@paraview.org mailto:paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源mailto:pangqingyuan1...@gmail.com ___ Powered by www.kitware.comhttp://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] Delaunay 3D filter too slow
庞庆源, I found some spare time to look into this. The test data set you provided defines a point cloud with spherical topology. Your reader does import this geometric information (as points), but provides no topology. In order for VTK and hence ParaView to display anything, some kind of topology is needed. The simplest being vertices as 0D topology, i.e. a dot per point. The patch attached does exactly add that. With this, you can already see something in ParaView when using your reader plugin to import the test data set. You've been trying to triangulate your point cloud with spherical topology with Delaunay3D, in vain. I could reproduce that. With a debug build of ParaView, one notices thousands of warnings of kind Unable to factor linear system being issued when trying to apply Delaunay3D filter to your input. The same actually happens when applying Delaunay3D filter to a sphere source created with theta resolution 180 and phi resolution 90. A few dozen warnings about being unable to factor a linear system are raised. (On a side node: a debug build of ParaView master branch with CMake option VTK_DEBUG_LEAKS:BOOL=ON reveals a memory leak in Delaunay3D when applied to this densely meshed sphere.) The result, however, is disappointing as the volume mesh has some gaps and rifts, not really a smooth surface any more. So, you need to pursue another triangulation approach. Applying Delaunay2D filter instead produces at least a hemisphere, almost instantly. I suspect, however, that a hemisphere is not good enough. You could resort to applying a Glyph filter with Glyph type Sphere and otherwise default settings. That yields a coarse approximation of what I guess you would like to achieve. It might also be that class vtkSurfaceReconstructionFilter or class vtkMarchingCubes or one of the filters from the pv-meshless plugin are able to create the surface mesh, but I'm not too familiar with them to say this with confidence or provide additional advice. There have recently even been a few discussions on the VTK mailing list regarding the general problem of triangulating point clouds with spherical topology, see e.g. http://markmail.org/message/fc3kjifkwtpggqai But given that your points are not arbitrarily distributed over the sphere, but in fact stored in your input file in a very regular and pre- sorted way (180 points per latitude, latitude after latitude from pole to pole) and given that the implied topology is very simple too (every vertex has exactly 4 neighbors), it is not too hard to extend your reader to have it create a smooth triangulation of the surface by simple quads (connecting vertex i with i+1, i+181 and i+180) without involving the help from additional VTK meshing classes. Maybe someone else on the list can even tell you how to re-arrange your data to fulfill the prerequisites for a structured grid data set for which the triangulation is implicitly done by VTK. Hope this helps, Karl 庞庆源 wrote, On 27.09.2013 02:46: This is the source of my test plugin.Could you have a try? My paraview version is 4.0.1 ,built from source. 2013/9/27 Moreland, Kenneth kmo...@sandia.gov mailto:kmo...@sandia.gov I doubt that would make a difference. I just tried a bimodal distribution using two point sources, and the filter still executed in about the same amount of time. So what version of ParaView are you using? Are you using a binary downloaded from paraview.org http://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.com mailto:pangqingyuan1...@gmail.com Date: Thursday, September 26, 2013 3:05 AM To: Kenneth Moreland kmo...@sandia.gov mailto:kmo...@sandia.gov Cc: paraview@paraview.org mailto:paraview@paraview.org paraview@paraview.org mailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.gov mailto:kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.org http://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.com mailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.gov mailto:kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I
Re: [Paraview] Delaunay 3D filter too slow
I have an extra question.Both my reader and Delaunay3D filter are subclass from vtkUnstructuredGridAlgorithm.But when I test with 8 vertices of a cube,my reader renders a hollow cube.But why can Delaunay3D filter render a solid cube?I have checked the Delaunay3D source file,but can not find the answer. 2013/9/29 Karl König kkoeni...@web.de 庞庆源, I found some spare time to look into this. The test data set you provided defines a point cloud with spherical topology. Your reader does import this geometric information (as points), but provides no topology. In order for VTK and hence ParaView to display anything, some kind of topology is needed. The simplest being vertices as 0D topology, i.e. a dot per point. The patch attached does exactly add that. With this, you can already see something in ParaView when using your reader plugin to import the test data set. You've been trying to triangulate your point cloud with spherical topology with Delaunay3D, in vain. I could reproduce that. With a debug build of ParaView, one notices thousands of warnings of kind Unable to factor linear system being issued when trying to apply Delaunay3D filter to your input. The same actually happens when applying Delaunay3D filter to a sphere source created with theta resolution 180 and phi resolution 90. A few dozen warnings about being unable to factor a linear system are raised. (On a side node: a debug build of ParaView master branch with CMake option VTK_DEBUG_LEAKS:BOOL=ON reveals a memory leak in Delaunay3D when applied to this densely meshed sphere.) The result, however, is disappointing as the volume mesh has some gaps and rifts, not really a smooth surface any more. So, you need to pursue another triangulation approach. Applying Delaunay2D filter instead produces at least a hemisphere, almost instantly. I suspect, however, that a hemisphere is not good enough. You could resort to applying a Glyph filter with Glyph type Sphere and otherwise default settings. That yields a coarse approximation of what I guess you would like to achieve. It might also be that class vtkSurfaceReconstructionFilter or class vtkMarchingCubes or one of the filters from the pv-meshless plugin are able to create the surface mesh, but I'm not too familiar with them to say this with confidence or provide additional advice. There have recently even been a few discussions on the VTK mailing list regarding the general problem of triangulating point clouds with spherical topology, see e.g. http://markmail.org/message/fc3kjifkwtpggqai But given that your points are not arbitrarily distributed over the sphere, but in fact stored in your input file in a very regular and pre- sorted way (180 points per latitude, latitude after latitude from pole to pole) and given that the implied topology is very simple too (every vertex has exactly 4 neighbors), it is not too hard to extend your reader to have it create a smooth triangulation of the surface by simple quads (connecting vertex i with i+1, i+181 and i+180) without involving the help from additional VTK meshing classes. Maybe someone else on the list can even tell you how to re-arrange your data to fulfill the prerequisites for a structured grid data set for which the triangulation is implicitly done by VTK. Hope this helps, Karl 庞庆源 wrote, On 27.09.2013 02:46: This is the source of my test plugin.Could you have a try? My paraview version is 4.0.1 ,built from source. 2013/9/27 Moreland, Kenneth kmo...@sandia.gov mailto:kmo...@sandia.gov I doubt that would make a difference. I just tried a bimodal distribution using two point sources, and the filter still executed in about the same amount of time. So what version of ParaView are you using? Are you using a binary downloaded from paraview.org http://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.com mailto:pangqingyuan1...@gmail.com Date: Thursday, September 26, 2013 3:05 AM To: Kenneth Moreland kmo...@sandia.gov mailto:kmo...@sandia.gov Cc: paraview@paraview.org mailto:paraview@paraview.org paraview@paraview.org mailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.gov mailto:kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you
Re: [Paraview] Delaunay 3D filter too slow
Did you build ParaView in Release mode (CMAKE_BUILD_TYPE = Release)? That can make a huge difference in run times. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Thursday, September 26, 2013 6:46 PM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Cc: paraview@paraview.orgmailto:paraview@paraview.org paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow This is the source of my test plugin.Could you have a try? My paraview version is 4.0.1 ,built from source. 2013/9/27 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov I doubt that would make a difference. I just tried a bimodal distribution using two point sources, and the filter still executed in about the same amount of time. So what version of ParaView are you using? Are you using a binary downloaded from paraview.orghttp://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Thursday, September 26, 2013 3:05 AM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Cc: paraview@paraview.orgmailto:paraview@paraview.org paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.orghttp://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I have only 16020 points for test.My cpu is AMD Athlon(tm) II P320 Dual-Core Processor with 2.1GHz.How long will it take in this case if I use one cpu to calculate?I have wait for more than 10 minutes before stopping it. 2013/9/24 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.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] Delaunay 3D filter too slow
My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I have only 16020 points for test.My cpu is AMD Athlon(tm) II P320 Dual-Core Processor with 2.1GHz.How long will it take in this case if I use one cpu to calculate?I have wait for more than 10 minutes before stopping it. 2013/9/24 Moreland, Kenneth kmo...@sandia.gov Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源 pangqingyuan1...@gmail.com -- 庞庆源 pangqingyuan1...@gmail.com -- 庞庆源 pangqingyuan1...@gmail.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] Delaunay 3D filter too slow
I doubt that would make a difference. I just tried a bimodal distribution using two point sources, and the filter still executed in about the same amount of time. So what version of ParaView are you using? Are you using a binary downloaded from paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Thursday, September 26, 2013 3:05 AM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Cc: paraview@paraview.orgmailto:paraview@paraview.org paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow My points are not Uniform distribution.They take from intersections of 89 wefts and 180 warps.So the points are intensive at poles and sparse at equator.Is this the problem? 2013/9/25 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.orghttp://paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I have only 16020 points for test.My cpu is AMD Athlon(tm) II P320 Dual-Core Processor with 2.1GHz.How long will it take in this case if I use one cpu to calculate?I have wait for more than 10 minutes before stopping it. 2013/9/24 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.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] Delaunay 3D filter too slow
That is strange. I cannot replicate your problem. I used a point source to create 16020 random points in a sphere, and the Delaunay triangulation took only about 2 seconds. My processor might be a bit better than yours, but not anywhere near enough to explain the difference. What version of ParaView are you using? Are you a binary downloaded from paraview.org or did you build your own? -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 10:29 PM To: Kenneth Moreland kmo...@sandia.govmailto:kmo...@sandia.gov Subject: [EXTERNAL] Re: [Paraview] Delaunay 3D filter too slow in fact,I have only 16020 points for test.My cpu is AMD Athlon(tm) II P320 Dual-Core Processor with 2.1GHz.How long will it take in this case if I use one cpu to calculate?I have wait for more than 10 minutes before stopping it. 2013/9/24 Moreland, Kenneth kmo...@sandia.govmailto:kmo...@sandia.gov Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源mailto:pangqingyuan1...@gmail.com -- 庞庆源mailto:pangqingyuan1...@gmail.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] Delaunay 3D filter too slow
Your options are probably either to wait or do something else. Delaunay triangulation is a pretty heavyweight operation and in general it is not trivial to impose a topology on a collection of points. You might rethink whether you really need to create a solid sphere in the first place. I'm guessing you have at least around 100,000 points (or else Delaunay probably would not be that slow). If you just render these points as a cloud of points, you should get enough occlusion for it to look pretty much like a sphere. -Ken From: 庞庆源 pangqingyuan1...@gmail.commailto:pangqingyuan1...@gmail.com Date: Tuesday, September 24, 2013 5:01 AM To: paraview paraview@paraview.orgmailto:paraview@paraview.org Subject: [EXTERNAL] [Paraview] Delaunay 3D filter too slow I have a lot of points taking sample from a solid sphere.So I want to use Delaunay 3D filter to render the shpere with known scalars of the points.But it took me so much time.What should I do? -- 庞庆源mailto:pangqingyuan1...@gmail.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