Re: [Paraview] Use case Paraview-Selection
Yep, I know the Find Data and it's quite nice to have. I mean something still more simple. In my use case i wrote: ...The object will highlight so the user can always see which objects have already been selected... which could be realized with some kind of RegionID selector. So one click and -BAM- all points with same ID selected. Best regards, Christian Utkarsh Ayachit wrote: Glad it works. What do you mean by a pick selects all cells with same ID ? Is ID a cell array? If so, you can already do so using the Edit | Find Data dialog [ http://www.paraview.org/Wiki/Find_Data_using_Queries ] Utkarsh On Wed, Apr 21, 2010 at 5:10 PM, Christian Werner christian.wer...@rwth-aachen.de wrote: This works perfectly, thank you very much! The processing is getting really professional now. As for the selection tools, should I just go ahead and write a feature request? (a pick selects all cells with same ID / enable multiselect so you do not have to use the Ctrl-Key anymore) Best regards, Christian Utkarsh Ayachit wrote: Christian, Attached is simple python script (that you can encapsulate as a macro) to which you can add code to processes the extract points however you like. I am simply writing them out to a file. To use this script, do the following (to keep it simple I am using the Sphere source as an example, no reason why it won't work with your data). 1 Create Sphere source 2 Create a selection of points or cells 3 Open Python Shell and run the attached script. As as result, you'll have a mygrid.vtu file written out with the extracted points(or cells). No 3 seconds waits, no errors writing files, no need for the user to create extract selection filter. Using the python macros capability, you can make this script a trigger-able from a toolbutton. Utkarsh On Wed, Apr 21, 2010 at 8:55 AM, Christian Werner christian.wer...@rwth-aachen.de wrote: Hi! I made a new topic about that selection thing. Here is my use-case: Overview: We have volumetric data of metal components. These components contain unwanted defects (holes that appear during the casting process). These holes are visible as dark regions (objects) in the data. Unfortunately, there are other structures in the metal that are also dark (graphite). After a few image processing steps many of those objects (defects and graphite) are segmented out of the originial volume data. A contouring (and connectivity filtering) yields a nice visualization of those objects. Use Case: Select defects Goal: The user selects the defects out of the many presented objects. Details: Due to the extremely cool features of Paraview, the user is able to mix the views of all extracted objects and the original volume data (see image) to easily verify which object is a defect and which one is graphite. When the user identifies an object as a defect, he marks it by a simple click. The object will highlight so the user can always see which objects have already been selected. When the user is done selecting all defects, he clicks on the Measure Defects button. A database containing all necessary information on the defects (centroid, total volume, volume percentage,...) will automatically be created and saved in a secret place. Remark: The Measure Defects Button will call a Python macro that desperately tries to extract the selected objects (points). These points are needed for correspondance to the original volume data that is actually being analyzed (the mean grey value of a defect and such are important quantities). Certainly, one single point per object suffices for this correspondance. Best regards, Christian Utkarsh Ayachit schrieb: Christian, O-oh! We can't have our users going mad now can we :). Guess we are looking at this the wrong way, instead of working from the solution, let's start with the problem/use-case. Can you describe your use-case as simply as possibly. What's the goal here? What is the user doing? Utkarsh On Mon, Apr 19, 2010 at 11:20 AM, Christian Werner christian.wer...@rwth-aachen.de wrote: Does that mean that I have to create a selection with explicitly defining the points? Oh man... Then I can forget the whole thing anyway. Everything is so nice about Paraview, but this selection thing is driving me mad. It's still all about making it as easy as possible for the user to select objects out of Polydata and let a plugin analyze these objects. As it seems now, the user has to: 1) Ctrl+Click matching objects one after another (already dangerours, because you might forget to hold down Ctrl when selecting) 2) go to Filter-Recent-ExtractSelection 3) wait at least 3 seconds 4) call a plugin that writes the extracted points' coordinates and their ID to a file 5) call the analyzing plugin that reads out the file (to get the RegionID and coordinates) and does the analysing stuff (in ITK) I have found a way to do that wait 3 seconds in Python using a thread(!) which checks the time and joins
[Paraview] Rescale to data range with a xmdf file, bug???
Hi, I'm writing xdmf file to export my data (from matlab). I have a transient multi domain solution. A simple example (2 time-steps X 2- domains) file is attached. Note: the topology and the geometry are written only once). The Rescale to data range button (GUI interface), rescale always to the first time-step. even if I'm looking to the second timestep. The Object Inspector, (Data Arrays) shows the right Data Ranges. using ParaView 3.8.0-RC1 thanks Felipe ASCII.xdmf Description: Binary data ___ 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] Missing Help files on 3.8.0 RC1 Windows
Hello, I found that some help file are missing in the OnLine help of PV 3.8.0 RC1 Windows distribution - ParaViewSources.html - ParaViewFilters.html - ParaViewReaders.html - ParaViewWriters.html All these help files are in the Linux distribution. Could you fix that for the final 3.8.0 release? Best regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr ___ 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] Missing Help files on 3.8.0 RC1 Windows
Yes this is know and will be fixed in the next RC. On Thu, Apr 22, 2010 at 8:18 AM, Richard GRENON richard.gre...@onera.frwrote: Hello, I found that some help file are missing in the OnLine help of PV 3.8.0 RC1 Windows distribution - ParaViewSources.html - ParaViewFilters.html - ParaViewReaders.html - ParaViewWriters.html All these help files are in the Linux distribution. Could you fix that for the final 3.8.0 release? Best regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr ___ 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] Error in Python shell
On Wed, 21 Apr 2010 16:54:14 +0400 s == soukhinov soukhi...@gmail.com wrote: s Python 2.6.4 (r264:75706, Dec 7 2009, 18:59:58) s [GCC 4.4.1] on linux2 from paraview import servermanager s Traceback (most recent call last): s File string, line 1, in module s File s /usr/lib/python2.6/dist-packages/paraview/servermanager.py, s line 43, in module s import re, os, new, exceptions, sys, vtk s File /usr/lib/python2.6/dist-packages/paraview/vtk.py, line s 4, in module from libvtkCommonPython import * s ImportError: No module named libvtkCommonPython You've got to add the directory where this (and other so-files) resides to the PYTHONPATH before calling paraview. Something like export PYTHONPATH=system specific path/bin:$PYTHONPATH With the system specific path I can'T help you Bernhard ___ 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] Use case Paraview-Selection
The problem with implementing such a component in ParaView is the fact that there's no universal notion of RegionID. However it's may not be difficult to add a tool button plugin that uses the some code similar to FindData to create RegionID based selections for your application. Utkarsh On Thu, Apr 22, 2010 at 3:19 AM, Christian Werner christian.wer...@rwth-aachen.de wrote: Yep, I know the Find Data and it's quite nice to have. I mean something still more simple. In my use case i wrote: ...The object will highlight so the user can always see which objects have already been selected... which could be realized with some kind of RegionID selector. So one click and -BAM- all points with same ID selected. Best regards, Christian Utkarsh Ayachit wrote: Glad it works. What do you mean by a pick selects all cells with same ID ? Is ID a cell array? If so, you can already do so using the Edit | Find Data dialog [ http://www.paraview.org/Wiki/Find_Data_using_Queries ] Utkarsh On Wed, Apr 21, 2010 at 5:10 PM, Christian Werner christian.wer...@rwth-aachen.de wrote: This works perfectly, thank you very much! The processing is getting really professional now. As for the selection tools, should I just go ahead and write a feature request? (a pick selects all cells with same ID / enable multiselect so you do not have to use the Ctrl-Key anymore) Best regards, Christian Utkarsh Ayachit wrote: Christian, Attached is simple python script (that you can encapsulate as a macro) to which you can add code to processes the extract points however you like. I am simply writing them out to a file. To use this script, do the following (to keep it simple I am using the Sphere source as an example, no reason why it won't work with your data). 1 Create Sphere source 2 Create a selection of points or cells 3 Open Python Shell and run the attached script. As as result, you'll have a mygrid.vtu file written out with the extracted points(or cells). No 3 seconds waits, no errors writing files, no need for the user to create extract selection filter. Using the python macros capability, you can make this script a trigger-able from a toolbutton. Utkarsh On Wed, Apr 21, 2010 at 8:55 AM, Christian Werner christian.wer...@rwth-aachen.de wrote: Hi! I made a new topic about that selection thing. Here is my use-case: Overview: We have volumetric data of metal components. These components contain unwanted defects (holes that appear during the casting process). These holes are visible as dark regions (objects) in the data. Unfortunately, there are other structures in the metal that are also dark (graphite). After a few image processing steps many of those objects (defects and graphite) are segmented out of the originial volume data. A contouring (and connectivity filtering) yields a nice visualization of those objects. Use Case: Select defects Goal: The user selects the defects out of the many presented objects. Details: Due to the extremely cool features of Paraview, the user is able to mix the views of all extracted objects and the original volume data (see image) to easily verify which object is a defect and which one is graphite. When the user identifies an object as a defect, he marks it by a simple click. The object will highlight so the user can always see which objects have already been selected. When the user is done selecting all defects, he clicks on the Measure Defects button. A database containing all necessary information on the defects (centroid, total volume, volume percentage,...) will automatically be created and saved in a secret place. Remark: The Measure Defects Button will call a Python macro that desperately tries to extract the selected objects (points). These points are needed for correspondance to the original volume data that is actually being analyzed (the mean grey value of a defect and such are important quantities). Certainly, one single point per object suffices for this correspondance. Best regards, Christian Utkarsh Ayachit schrieb: Christian, O-oh! We can't have our users going mad now can we :). Guess we are looking at this the wrong way, instead of working from the solution, let's start with the problem/use-case. Can you describe your use-case as simply as possibly. What's the goal here? What is the user doing? Utkarsh On Mon, Apr 19, 2010 at 11:20 AM, Christian Werner christian.wer...@rwth-aachen.de wrote: Does that mean that I have to create a selection with explicitly defining the points? Oh man... Then I can forget the whole thing anyway. Everything is so nice about Paraview, but this selection thing is driving me mad. It's still all about making it as easy as possible for the user to select objects out of Polydata and let a plugin analyze these objects. As it seems now, the user has to: 1) Ctrl+Click matching objects one after another (already
Re: [Paraview] [ParaView]A bug in volume rendering
Sorry, my bad ( I can never remember which setting applies where). Go to Edit |Settings. Then, on the Server page in the Tile Display Parameters group, set Compositing Threshold to 0 (and ensure that it's enabled). This is the setting that controls tile-display compositing. Utkarsh On Thu, Apr 22, 2010 at 1:45 AM, liuning tant...@gmail.com wrote: Hi Ayachit , Sorry for the deferred reply. When the Remote Render Threshold is set to 0, the wavelet source is still not composited correctly. -Ning On Fri, Apr 16, 2010 at 2:49 AM, Utkarsh Ayachit utkarsh.ayac...@kitware.com wrote: Ning, Go to the Edit |Settings dialog. On the Server page make sure that the Remote Render Threshold is 0 (and enabled). Volume rendering is only supported when parallel rendering is enabled. Utkarsh On Thu, Apr 15, 2010 at 2:34 PM, Moreland, Kenneth kmo...@sandia.gov wrote: I created a bug report for this: http://www.paraview.org/Bug/view.php?id=10557 -Ken On 4/15/10 1:07 AM, liuning tant...@gmail.com wrote: Hi all, When we are doing a parallel volume rendering(using the Wavelet source from ParaView) and show the result on a tiled display, it seems that the final image is not composited correctly. We use the Fix Point mapper in the first attachment and GPU mapper in the second attachment. We also render another dataset(box.ex2 from ParaView Data), but the result is correct. The correctly composited image is showed in the third attachment. I notice that the Wavelet source support GPU mapper whereas the box.ex2 does not. Does it have something to do with that? -ning 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
[Paraview] Programmable Source MultiBlockDataSet
Hi, A new thing I don't know how to do with Paraview. I have written a personnal reader, that creates vtkStructuredGrid from files written in so called format v3d. So I'm able to construct a MutliBlockDataSet, that is composed of all the Blocks I'm working with. I would like to use Programmable Source, so we don't need to write the file on the disk before to open it with Paraview. Does Programmable Source work with MultiBlockDataSet ? I don't see this class in the Output Data Set Type that we can choose... And is it correct if I write in the Script of the Programmable Filter : from perso import * multiblock = MultiBlockDataSetFromV3D(.) self.GetOutput().DeepCopy(multiblock) Thanks for help. A.MARSAN ___ 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] 3.8 RC1 regression in line chart ?
Hello, here is me again. I have found some kind of regression with the line charts (XY plots) in PV 3.8 RC1: First, loading a very simple csv file with three columns (named P, R and T), then using filter PlotData: 1. the XY windows comes with the top VARIABLE box unchecked and all my variables (P, V, T) boxes checked in the Line Series panel of the Display tab, but the XY window remains empty until I check the top VARIABLE box. The default X axis is the Row ID. OK. 2. Now I want to use one of my three data arrays as the X axis: I select the radio-button and the first variable P is selected by default on the list-box. OK, this is the variable I want on the X axis, but I get many error messages because No X column is set (index 0). I have to select another X axis variable, then to come again on the P variable. No more error, but the X axis remains scaled with the Row ID values! I have to uncheck a variable in the line series panel and to check it again to obtain the correct P values on the X axis. Finally I get my three curves and I can change the X axis variable as I want. 3. All variables are scaled by default with the bottom-left axis system and I want to scale one of the variables on the right axis. I select one variable in the Line series panel and I try to change the default bottom-left Chart Axes for bottom-right or top-right axis system. Nothing happens: the top and right axis don't appear and all variables remain scaled on the bottom-left axis system. I can change some attributes of the variable (Line thickness, Line Style, Marker), but not the Chart Axes, although it was possible to change the Chart Axes with PV 3.6.2. I attach the very small csv file that I used for my tests. Regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr P,R,T 0,1,2 2,3,4 4,2,6 6,5,5 8,4,3 10,3,1 ___ 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] please help do constuct 3d surface chart from csv file
Eric Please know that I really appreciate the time you took to answer my query. I have done what you have suggested - and it brought me closer to what I want. Unfortunately it still does not do exactly what I want. I am at the point of accepting that Paraview is not what I need because: 1) When I transform the data so that the scales of the surface chart appears in proportion the actual data is transformed - I want to adjust the scales of the axis only - not the data because when I select the data I then have to divide the result again by the scale factor to know whet the actual values are. 2) It seem the Delaunay 2d filter seems to decrease the resolution of my data by drawing triangles only between major points. The ideal for me would be to not have any data manipulation at all - Paraview seems to be too powerful. 3) Learning how to do things is not easy - I would prefer a chat board / bulletin board over an email list - to see if other people has tried the same as what I am trying. There is nothing new under the sun. Regards Chris On Wed, Apr 21, 2010 at 3:06 PM, Eric E. Monson emon...@cs.duke.edu wrote: Hey Chris, Yes, you are on the right track with that mailing list entry. If you want to actually transform the values of the points, just go to Filters-Transform and then enter a factor between 0 and 1 in the appropriate Scale box (e.g. 0.2 in the third Scale column will multiply the Z values by 0.2). If you want to keep the original data values, but just scale the display, then go to the Display tab in the Object Inspector and all the way down at the bottom is a Transformation section where you can do the same sort of Scale entry. ParaView doesn't support hovering labels right now, but you can tell it to label selected points. Use one of the point selection tools to select some points on your grid. Then, go to View-Selection Inspector. At the bottom of that panel there is a Display Style section. If you hit the Point Label tab and check the Visible box you'll see PointID and other attributes in the Label Mode combo-box. If your point coordinates are not there, then you can apply the Calculator filter to your data: Attribute Mode: Point Data, Result Array Name: Coordinates (or something like that), Equation (next box down): coords (which you can get by pulling down on the Vectors button on the lower right. After you hit apply the coordinates of your points will be an explicit vector attribute of your point data, and this new vector should show up in the Label Mode combo box for Point Label. Talk to you later, -Eric -- Eric E Monson Duke Visualization Technology Group On Apr 21, 2010, at 5:27 AM, Chris Botha wrote: Utkarsh I am a new user to Paraview - and therefore do not know what to do when you say to apply the transform filter. I therefore searched the web for more information on how to apply the transform filter in Paraview. The best I could find was here : http://www.paraview.org/pipermail/paraview/2009-March/011560.html - I was able to use that answer to apply the scale that I need. I have also applied the Delaunay filter - and now have a 3d surface chart that I wanted! What do I need to do to see the coordinates of the cursor as I move it over the surface chart? I need to see the values of the local maximum. Regards Chris On Mon, Apr 19, 2010 at 4:32 PM, Utkarsh Ayachit utkarsh.ayac...@kitware.com wrote: If the issue is indeed scale, then you can apply the Transform filter to scale the points. Utkarsh On Sun, Apr 18, 2010 at 2:37 PM, Chris Botha solidsto...@gmail.com wrote: Utkarsh/Berk Thank you both for taking the time to reply to my question. I have done what you have suggested - and made some progress. I still however do not see what I expect. After making sure that the table to points is selected I do see a 3D view of something - the points are stretched along the Z axis - very close to the axis - and not spread out as I would expect. When I apply Delauny 2d it of course draws lines between the stretched out points along the Z axis. I have attached the following for you to see what I mean: paraviewdots.png - screen shot of dots along the Z axis surface3d.png - what I would like to see - made with another program off the same data. I have also attached the file that contains the data that I am trying to see as a 3D surface chart - the file is four.csv. In the paraviewdots file I have selected : x = posdista y = negdista z = fitness I assume that the problem has to do with scale somehow - and have tried to find the correct settings to change - but have been unable to and would therefore greatly appreciate your help Regards On Sat, Apr 17, 2010 at 7:08 PM, Berk Geveci berk.gev...@kitware.com wrote: After that, you'll probably need delaunay 2d. -berk On Sat, Apr 17, 2010 at 3:56 AM, Utkarsh Ayachit
Re: [Paraview] please help do constuct 3d surface chart from csv file
Hey Chris, 1.) That is the point of the transformation which is in the Display tab -- it doesn't actually transform the data, only the display (the Transform Filter actually changes the data). So, with that Display transform the visual representation looks different but the data values are still the original. 2.) That seems strange. I thought it should use all points, but I'm definitely not an expert on Delaunay2D. How does it seem to determine major points? 3.) Sorry it's not working out for you. ParaView is definitely not always the most intuitive tool for beginners, but feel free to pass things by us in the future if you want to try again. Good luck, -Eric On Apr 22, 2010, at 11:20 AM, Chris Botha wrote: Eric Please know that I really appreciate the time you took to answer my query. I have done what you have suggested - and it brought me closer to what I want. Unfortunately it still does not do exactly what I want. I am at the point of accepting that Paraview is not what I need because: 1) When I transform the data so that the scales of the surface chart appears in proportion the actual data is transformed - I want to adjust the scales of the axis only - not the data because when I select the data I then have to divide the result again by the scale factor to know whet the actual values are. 2) It seem the Delaunay 2d filter seems to decrease the resolution of my data by drawing triangles only between major points. The ideal for me would be to not have any data manipulation at all - Paraview seems to be too powerful. 3) Learning how to do things is not easy - I would prefer a chat board / bulletin board over an email list - to see if other people has tried the same as what I am trying. There is nothing new under the sun. Regards Chris On Wed, Apr 21, 2010 at 3:06 PM, Eric E. Monson emon...@cs.duke.edu wrote: Hey Chris, Yes, you are on the right track with that mailing list entry. If you want to actually transform the values of the points, just go to Filters-Transform and then enter a factor between 0 and 1 in the appropriate Scale box (e.g. 0.2 in the third Scale column will multiply the Z values by 0.2). If you want to keep the original data values, but just scale the display, then go to the Display tab in the Object Inspector and all the way down at the bottom is a Transformation section where you can do the same sort of Scale entry. ParaView doesn't support hovering labels right now, but you can tell it to label selected points. Use one of the point selection tools to select some points on your grid. Then, go to View-Selection Inspector. At the bottom of that panel there is a Display Style section. If you hit the Point Label tab and check the Visible box you'll see PointID and other attributes in the Label Mode combo-box. If your point coordinates are not there, then you can apply the Calculator filter to your data: Attribute Mode: Point Data, Result Array Name: Coordinates (or something like that), Equation (next box down): coords (which you can get by pulling down on the Vectors button on the lower right. After you hit apply the coordinates of your points will be an explicit vector attribute of your point data, and this new vector should show up in the Label Mode combo box for Point Label. Talk to you later, -Eric -- Eric E Monson Duke Visualization Technology Group On Apr 21, 2010, at 5:27 AM, Chris Botha wrote: Utkarsh I am a new user to Paraview - and therefore do not know what to do when you say to apply the transform filter. I therefore searched the web for more information on how to apply the transform filter in Paraview. The best I could find was here : http://www.paraview.org/pipermail/paraview/2009-March/011560.html - I was able to use that answer to apply the scale that I need. I have also applied the Delaunay filter - and now have a 3d surface chart that I wanted! What do I need to do to see the coordinates of the cursor as I move it over the surface chart? I need to see the values of the local maximum. Regards Chris On Mon, Apr 19, 2010 at 4:32 PM, Utkarsh Ayachit utkarsh.ayac...@kitware.com wrote: If the issue is indeed scale, then you can apply the Transform filter to scale the points. Utkarsh On Sun, Apr 18, 2010 at 2:37 PM, Chris Botha solidsto...@gmail.com wrote: Utkarsh/Berk Thank you both for taking the time to reply to my question. I have done what you have suggested - and made some progress. I still however do not see what I expect. After making sure that the table to points is selected I do see a 3D view of something - the points are stretched along the Z axis - very close to the axis - and not spread out as I would expect. When I apply Delauny 2d it of course draws lines between the stretched out points along the Z axis. I have attached the following for you to see
Re: [Paraview] Time dependant field in Ensight Gold Format
Hi Anthony: What do you mean by the time values of the ensight case file are changed from doubles to integers and 1.1 1.3 2.1 2.3? Can you explain more about your changes to the original case file? -Zhanping On Thu, Apr 22, 2010 at 12:22 PM, Anthony Ruiz r...@cerfacs.fr wrote: Hi, with Thomas Pedot, we've compiled paraview on mac os x snow leopard (10.6) from paraview cvs head checked out today (3.9.0). The problem is still here, however, we are able to visualize the transient data, provided the time values of the ensight case file are changed from doubles to integers. It seems that doubles are converted to integers since using the 4 following time values in the ensight case : 1.1 1.3 2.1 2.3 will result into only 2 snapshots in paraview, with time=1 and time=2. I attached the test case, since it is very small. Best regards, Anthony Ruiz -- Cerfacs / Snecma - Ph.D. Student 05 61 19 30 37 -- ___ 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 -- Zhanping Liu, PhD Kitware, Inc. 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x 138 http://www.zhanpingliu.org ___ 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] Time dependant field in Ensight Gold Format
Hi, paraview reads double as integer 1.1 is read as 1 1.3 as 1 2.1 as 2 2.3 as 2 So only 2 time dependant files are accessible. 2010/4/22, Zhanping Liu zhanping@kitware.com: Hi Anthony: What do you mean by the time values of the ensight case file are changed from doubles to integers and 1.1 1.3 2.1 2.3? Can you explain more about your changes to the original case file? -Zhanping On Thu, Apr 22, 2010 at 12:22 PM, Anthony Ruiz r...@cerfacs.fr wrote: Hi, with Thomas Pedot, we've compiled paraview on mac os x snow leopard (10.6) from paraview cvs head checked out today (3.9.0). The problem is still here, however, we are able to visualize the transient data, provided the time values of the ensight case file are changed from doubles to integers. It seems that doubles are converted to integers since using the 4 following time values in the ensight case : 1.1 1.3 2.1 2.3 will result into only 2 snapshots in paraview, with time=1 and time=2. I attached the test case, since it is very small. Best regards, Anthony Ruiz -- Cerfacs / Snecma - Ph.D. Student 05 61 19 30 37 -- ___ 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 -- Zhanping Liu, PhD Kitware, Inc. 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x 138 http://www.zhanpingliu.org ___ 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] Paraview 3.8-RC1
I installed PV-3.8-RC1, but it either crashes or does not respond when loading data. My system: Intel Xeon(R) CPU @ 2.66GHz; 3G RAM; WXP Service Pack 3. ___ 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] 3.8 RC1 regression in line chart ?
Richard, 1) This seems to work fine on the trunk from a few days ago. 2) This seems to work fine on the trunk from a few days ago. 3) Good catch - this is a bug. I wrote up a bug report, bug number 10597. Alan -Original Message- From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org] On Behalf Of Richard GRENON Sent: Thursday, April 22, 2010 7:59 AM To: paraview@paraview.org Subject: [Paraview] 3.8 RC1 regression in line chart ? Hello, here is me again. I have found some kind of regression with the line charts (XY plots) in PV 3.8 RC1: First, loading a very simple csv file with three columns (named P, R and T), then using filter PlotData: 1. the XY windows comes with the top VARIABLE box unchecked and all my variables (P, V, T) boxes checked in the Line Series panel of the Display tab, but the XY window remains empty until I check the top VARIABLE box. The default X axis is the Row ID. OK. 2. Now I want to use one of my three data arrays as the X axis: I select the radio-button and the first variable P is selected by default on the list-box. OK, this is the variable I want on the X axis, but I get many error messages because No X column is set (index 0). I have to select another X axis variable, then to come again on the P variable. No more error, but the X axis remains scaled with the Row ID values! I have to uncheck a variable in the line series panel and to check it again to obtain the correct P values on the X axis. Finally I get my three curves and I can change the X axis variable as I want. 3. All variables are scaled by default with the bottom-left axis system and I want to scale one of the variables on the right axis. I select one variable in the Line series panel and I try to change the default bottom-left Chart Axes for bottom-right or top-right axis system. Nothing happens: the top and right axis don't appear and all variables remain scaled on the bottom-left axis system. I can change some attributes of the variable (Line thickness, Line Style, Marker), but not the Chart Axes, although it was possible to change the Chart Axes with PV 3.6.2. I attach the very small csv file that I used for my tests. Regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr ___ 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] 3.8 RC1 regression in line chart ?
You beat me to replying to this ;-) On Thu, Apr 22, 2010 at 3:44 PM, Scott, W Alan wasc...@sandia.gov wrote: Richard, 1) This seems to work fine on the trunk from a few days ago. 2) This seems to work fine on the trunk from a few days ago. Utkarsh and I tracked these issues down, and the fixes have been pushed to the 3.8 branch. 3) Good catch - this is a bug. I wrote up a bug report, bug number 10597. I will see what I can do here. Marcus -Original Message- From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org] On Behalf Of Richard GRENON Sent: Thursday, April 22, 2010 7:59 AM To: paraview@paraview.org Subject: [Paraview] 3.8 RC1 regression in line chart ? Hello, here is me again. I have found some kind of regression with the line charts (XY plots) in PV 3.8 RC1: First, loading a very simple csv file with three columns (named P, R and T), then using filter PlotData: 1. the XY windows comes with the top VARIABLE box unchecked and all my variables (P, V, T) boxes checked in the Line Series panel of the Display tab, but the XY window remains empty until I check the top VARIABLE box. The default X axis is the Row ID. OK. 2. Now I want to use one of my three data arrays as the X axis: I select the radio-button and the first variable P is selected by default on the list-box. OK, this is the variable I want on the X axis, but I get many error messages because No X column is set (index 0). I have to select another X axis variable, then to come again on the P variable. No more error, but the X axis remains scaled with the Row ID values! I have to uncheck a variable in the line series panel and to check it again to obtain the correct P values on the X axis. Finally I get my three curves and I can change the X axis variable as I want. 3. All variables are scaled by default with the bottom-left axis system and I want to scale one of the variables on the right axis. I select one variable in the Line series panel and I try to change the default bottom-left Chart Axes for bottom-right or top-right axis system. Nothing happens: the top and right axis don't appear and all variables remain scaled on the bottom-left axis system. I can change some attributes of the variable (Line thickness, Line Style, Marker), but not the Chart Axes, although it was possible to change the Chart Axes with PV 3.6.2. I attach the very small csv file that I used for my tests. Regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr ___ 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] Paraview 3.8-RC1
What kind of data? Are you able to share your dataset? On Thu, Apr 22, 2010 at 3:28 PM, wast...@gmail.com wrote: I installed PV-3.8-RC1, but it either crashes or does not respond when loading data. My system: Intel Xeon(R) CPU @ 2.66GHz; 3G RAM; WXP Service Pack 3. ___ 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] 3.8 RC1 regression in line chart ?
Richard, are you using Git now? Or is this with CVS? On Thu, Apr 22, 2010 at 4:22 PM, Marcus D. Hanwell marcus.hanw...@kitware.com wrote: You beat me to replying to this ;-) On Thu, Apr 22, 2010 at 3:44 PM, Scott, W Alan wasc...@sandia.gov wrote: Richard, 1) This seems to work fine on the trunk from a few days ago. 2) This seems to work fine on the trunk from a few days ago. Utkarsh and I tracked these issues down, and the fixes have been pushed to the 3.8 branch. 3) Good catch - this is a bug. I wrote up a bug report, bug number 10597. I will see what I can do here. Marcus -Original Message- From: paraview-boun...@paraview.org [mailto:paraview-boun...@paraview.org] On Behalf Of Richard GRENON Sent: Thursday, April 22, 2010 7:59 AM To: paraview@paraview.org Subject: [Paraview] 3.8 RC1 regression in line chart ? Hello, here is me again. I have found some kind of regression with the line charts (XY plots) in PV 3.8 RC1: First, loading a very simple csv file with three columns (named P, R and T), then using filter PlotData: 1. the XY windows comes with the top VARIABLE box unchecked and all my variables (P, V, T) boxes checked in the Line Series panel of the Display tab, but the XY window remains empty until I check the top VARIABLE box. The default X axis is the Row ID. OK. 2. Now I want to use one of my three data arrays as the X axis: I select the radio-button and the first variable P is selected by default on the list-box. OK, this is the variable I want on the X axis, but I get many error messages because No X column is set (index 0). I have to select another X axis variable, then to come again on the P variable. No more error, but the X axis remains scaled with the Row ID values! I have to uncheck a variable in the line series panel and to check it again to obtain the correct P values on the X axis. Finally I get my three curves and I can change the X axis variable as I want. 3. All variables are scaled by default with the bottom-left axis system and I want to scale one of the variables on the right axis. I select one variable in the Line series panel and I try to change the default bottom-left Chart Axes for bottom-right or top-right axis system. Nothing happens: the top and right axis don't appear and all variables remain scaled on the bottom-left axis system. I can change some attributes of the variable (Line thickness, Line Style, Marker), but not the Chart Axes, although it was possible to change the Chart Axes with PV 3.6.2. I attach the very small csv file that I used for my tests. Regards. Richard -- Richard GRENON ONERA Departement d'Aerodynamique Appliquee - DAAP/ACI 8 rue des Vertugadins 92190 MEUDON - FRANCE phone : +33 1 46 73 42 17 fax : +33 1 46 73 41 46 mailto:richard.gre...@onera.fr http://www.onera.fr ___ 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] choppy derivatives
The location we're looking at is the interface between two fluids so there
may be a discontinuity in the tangential derivatives for that reason. I'm
trying to write my own derivative and interpolation filters in a python
programmable filter which will take one-sided derivatives and use one-sided
interpolation. In order to do this I need to use cell data in my filter and
not point data to avoid the interpolation that takes place. Typically I
access point data with something like:
input = self.GetInputDataObject(0, 0)
output = self.GetOutputDataObject(0)
inputBlock = input.GetBlock(0)
# copy old data
output.CopyStructure(input)
outputBlock = inputBlock.NewInstance()
outputBlock.UnRegister(None)
outputBlock.CopyStructure(inputBlock)
output.SetBlock(0,outputBlock)
# get number of points
numPts = input.GetNumberOfPoints()
# temperature gradient
GtArr = input.GetPointData().GetVectors('ScalarGradient')
However, there doesn't seem to be an equivalent 'GetNumberOfCells()' or
'GetCellData()' for my multiblock data. How can I access the cell data?
Thanks for your help,
Peter.
On Tue, Mar 30, 2010 at 10:15 AM, Berk Geveci berk.gev...@kitware.comwrote:
I wonder if this is because of the multiple celldata - point data
conversions. Do you have an example dataset you can share?
On Sun, Mar 28, 2010 at 1:45 AM, Peter Brady petertbr...@gmail.com
wrote:
Hello list,
I have a 3D dataset with a Temperature field. My goal is to insert a
sphere
source and determine the tangential temperature gradient on the surface
of
the sphere at various zenith angles. The data is output from the code as
cell data. Here is the way I'm doing this (through pvpython)
1. Apply CellDataToPointData
2. Apply ComputeDerivatives (to get the 'Scalar Gradient')
3. Apply another CellDataToPointData (to turn the derivatives into point
data)
4. Resample the data from step 3 with my sphere source.
5. Use a programmable filter to combine the xyz derivatives
appropriately.
The data is reasonable but it's fairly choppy. When I look at dT/dx,
dT/dy,
and dT/dz (before I project them onto the sphere surface), and plot them
at
a particular zenith angle around the azimuth of the drop, dTdx and dTdy
are
very smooth but dT/dz is fairly choppy (especially above the equator of
the
drop). If I expand my sphere to a place where there's not a lot going on
dT/dz seems to calm down. Is there a way to smooth dT/dz in the location
of
interest or should I try to write my own derivatives filter to make them
smoother? Any thoughts?
Thanks,
Peter.
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[Paraview] SpreadSheet view doesn't work unless there is PointData
If you make a source (I tested with a cone source), split the view to show a spreadsheet view, and select a point on the cone, nothing shows up in the spreadsheet view. In fact, under Attribute the only option is FieldData. If you do something so that the points get PointData (e.g. GenerateSurfaceNormals), you can then select a point and see the normal, coordinate, and point ID of the selected point. Is there a reason for this behavior? Or could it be changed so that the coordinate and ID could be seen even if the object doesn't have any PointData? Thanks, David ___ 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] Two input plugin not available
I have a VTK class that takes two inputs:
int vtkRestorePolyDataPointIds::FillInputPortInformation(
int port, vtkInformation* info)
{
if ( port == 0 ) //this is the polydata we want to correct
{
info-Set(vtkDataObject::DATA_TYPE_NAME(), vtkPolyData );
return 1;
}
else if(port == 1) //this is the object we want to use to match the ids to
{
info-Set(vtkDataObject::DATA_TYPE_NAME(), vtkPointSet );
return 1;
}
return 0; //invalid port requested
}
So I made two InputProperty entires in the xml:
!--input--
InputProperty
name=Input
port_index=0
command=SetInputConnection
ProxyGroupDomain name=groups
Group name=sources/
Group name=filters/
/ProxyGroupDomain
DataTypeDomain name=input_type
DataType value=vtkPolyData/
/DataTypeDomain
Documentation
Set the input point set.
/Documentation
/InputProperty
!--target ids--
InputProperty
name=TargetIds
port_index=1
command=SetInputConnection
ProxyGroupDomain name=groups
Group name=sources/
Group name=filters/
/ProxyGroupDomain
DataTypeDomain name=input_type
DataType value=vtkPointSet/
/DataTypeDomain
Documentation
Set the target point set.
/Documentation
/InputProperty
However, if I create two sources ( a box and a cone), select one,
ctrl+click the other one, then go to the filters list, it is greyed
out. Can anyone see a problem with the above?
Thanks,
David
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Re: [Paraview] Two input plugin not available
Filters have different ways of specifying inputs: you can have
multiple input connections on an input port, and/or you can have
multiple input ports.
Your filter is a multi-input port filter which accepts a single
connection on each of the 2 ports. If user selects, multiple sources
in the pipeline browser, ParaView assumes multiple connections on an
input port, thus enabling only those filters that have the Input
property such that it accepts multiple connections (like the Append
filter, Group Datasets filter etc.).
For multiple input ports, ParaView convention is that you simply
select the value for one input port; ParaView will popup a input
selection dialog to allow user to explicitly specify the sources for
the other input ports.
On Thu, Apr 22, 2010 at 5:30 PM, David Doria daviddo...@gmail.com wrote:
I have a VTK class that takes two inputs:
int vtkRestorePolyDataPointIds::FillInputPortInformation(
int port, vtkInformation* info)
{
if ( port == 0 ) //this is the polydata we want to correct
{
info-Set(vtkDataObject::DATA_TYPE_NAME(), vtkPolyData );
return 1;
}
else if(port == 1) //this is the object we want to use to match the ids to
{
info-Set(vtkDataObject::DATA_TYPE_NAME(), vtkPointSet );
return 1;
}
return 0; //invalid port requested
}
So I made two InputProperty entires in the xml:
!--input--
InputProperty
name=Input
port_index=0
command=SetInputConnection
ProxyGroupDomain name=groups
Group name=sources/
Group name=filters/
/ProxyGroupDomain
DataTypeDomain name=input_type
DataType value=vtkPolyData/
/DataTypeDomain
Documentation
Set the input point set.
/Documentation
/InputProperty
!--target ids--
InputProperty
name=TargetIds
port_index=1
command=SetInputConnection
ProxyGroupDomain name=groups
Group name=sources/
Group name=filters/
/ProxyGroupDomain
DataTypeDomain name=input_type
DataType value=vtkPointSet/
/DataTypeDomain
Documentation
Set the target point set.
/Documentation
/InputProperty
However, if I create two sources ( a box and a cone), select one,
ctrl+click the other one, then go to the filters list, it is greyed
out. Can anyone see a problem with the above?
Thanks,
David
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Re: [Paraview] SpreadSheet view doesn't work unless there is PointData
Please add that to the bug tracker. It is a known limitation that I thought we were going to fix but it apparently slipped through the cracks. The workaround (which is an unfortunate one) is to use the calculator to add an array. David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 On Thu, Apr 22, 2010 at 5:17 PM, David Doria daviddo...@gmail.com wrote: If you make a source (I tested with a cone source), split the view to show a spreadsheet view, and select a point on the cone, nothing shows up in the spreadsheet view. In fact, under Attribute the only option is FieldData. If you do something so that the points get PointData (e.g. GenerateSurfaceNormals), you can then select a point and see the normal, coordinate, and point ID of the selected point. Is there a reason for this behavior? Or could it be changed so that the coordinate and ID could be seen even if the object doesn't have any PointData? Thanks, David ___ 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] SpreadSheet view doesn't work unless there is PointData
On Thu, Apr 22, 2010 at 7:51 PM, David E DeMarle dave.dema...@kitware.com wrote: Please add that to the bug tracker. It is a known limitation that I thought we were going to fix but it apparently slipped through the cracks. The workaround (which is an unfortunate one) is to use the calculator to add an array. David E DeMarle Done. http://public.kitware.com/Bug/view.php?id=10598 Thanks, David ___ 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] Two input plugin not available
On Thu, Apr 22, 2010 at 5:40 PM, Utkarsh Ayachit utkarsh.ayac...@kitware.com wrote: Filters have different ways of specifying inputs: you can have multiple input connections on an input port, and/or you can have multiple input ports. Your filter is a multi-input port filter which accepts a single connection on each of the 2 ports. If user selects, multiple sources in the pipeline browser, ParaView assumes multiple connections on an input port, thus enabling only those filters that have the Input property such that it accepts multiple connections (like the Append filter, Group Datasets filter etc.). For multiple input ports, ParaView convention is that you simply select the value for one input port; ParaView will popup a input selection dialog to allow user to explicitly specify the sources for the other input ports. Very cool. I added a small not to that effect on the wiki: http://www.paraview.org/Wiki/Plugin_HowTo#Filters_with_Multiple_Input_Ports Thanks, David ___ 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] choppy derivatives
You have to get the leaf nodes of the multi-block dataset first. In
this case, I suspect inputBlock will be a leaf block.
-berk
On Thu, Apr 22, 2010 at 5:01 PM, Peter Brady petertbr...@gmail.com wrote:
The location we're looking at is the interface between two fluids so there
may be a discontinuity in the tangential derivatives for that reason. I'm
trying to write my own derivative and interpolation filters in a python
programmable filter which will take one-sided derivatives and use one-sided
interpolation. In order to do this I need to use cell data in my filter and
not point data to avoid the interpolation that takes place. Typically I
access point data with something like:
input = self.GetInputDataObject(0, 0)
output = self.GetOutputDataObject(0)
inputBlock = input.GetBlock(0)
# copy old data
output.CopyStructure(input)
outputBlock = inputBlock.NewInstance()
outputBlock.UnRegister(None)
outputBlock.CopyStructure(inputBlock)
output.SetBlock(0,outputBlock)
# get number of points
numPts = input.GetNumberOfPoints()
# temperature gradient
GtArr = input.GetPointData().GetVectors('ScalarGradient')
However, there doesn't seem to be an equivalent 'GetNumberOfCells()' or
'GetCellData()' for my multiblock data. How can I access the cell data?
Thanks for your help,
Peter.
On Tue, Mar 30, 2010 at 10:15 AM, Berk Geveci berk.gev...@kitware.com
wrote:
I wonder if this is because of the multiple celldata - point data
conversions. Do you have an example dataset you can share?
On Sun, Mar 28, 2010 at 1:45 AM, Peter Brady petertbr...@gmail.com
wrote:
Hello list,
I have a 3D dataset with a Temperature field. My goal is to insert a
sphere
source and determine the tangential temperature gradient on the surface
of
the sphere at various zenith angles. The data is output from the code
as
cell data. Here is the way I'm doing this (through pvpython)
1. Apply CellDataToPointData
2. Apply ComputeDerivatives (to get the 'Scalar Gradient')
3. Apply another CellDataToPointData (to turn the derivatives into
point
data)
4. Resample the data from step 3 with my sphere source.
5. Use a programmable filter to combine the xyz derivatives
appropriately.
The data is reasonable but it's fairly choppy. When I look at dT/dx,
dT/dy,
and dT/dz (before I project them onto the sphere surface), and plot them
at
a particular zenith angle around the azimuth of the drop, dTdx and dTdy
are
very smooth but dT/dz is fairly choppy (especially above the equator of
the
drop). If I expand my sphere to a place where there's not a lot going
on
dT/dz seems to calm down. Is there a way to smooth dT/dz in the
location of
interest or should I try to write my own derivatives filter to make them
smoother? Any thoughts?
Thanks,
Peter.
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Re: [Paraview] choppy derivatives
Fantastic! InputBlock is a leaf block as suspected.
Until my next question,
Peter
On Thu, Apr 22, 2010 at 5:15 PM, Berk Geveci berk.gev...@kitware.comwrote:
You have to get the leaf nodes of the multi-block dataset first. In
this case, I suspect inputBlock will be a leaf block.
-berk
On Thu, Apr 22, 2010 at 5:01 PM, Peter Brady petertbr...@gmail.com
wrote:
The location we're looking at is the interface between two fluids so
there
may be a discontinuity in the tangential derivatives for that reason.
I'm
trying to write my own derivative and interpolation filters in a python
programmable filter which will take one-sided derivatives and use
one-sided
interpolation. In order to do this I need to use cell data in my filter
and
not point data to avoid the interpolation that takes place. Typically I
access point data with something like:
input = self.GetInputDataObject(0, 0)
output = self.GetOutputDataObject(0)
inputBlock = input.GetBlock(0)
# copy old data
output.CopyStructure(input)
outputBlock = inputBlock.NewInstance()
outputBlock.UnRegister(None)
outputBlock.CopyStructure(inputBlock)
output.SetBlock(0,outputBlock)
# get number of points
numPts = input.GetNumberOfPoints()
# temperature gradient
GtArr = input.GetPointData().GetVectors('ScalarGradient')
However, there doesn't seem to be an equivalent 'GetNumberOfCells()' or
'GetCellData()' for my multiblock data. How can I access the cell data?
Thanks for your help,
Peter.
On Tue, Mar 30, 2010 at 10:15 AM, Berk Geveci berk.gev...@kitware.com
wrote:
I wonder if this is because of the multiple celldata - point data
conversions. Do you have an example dataset you can share?
On Sun, Mar 28, 2010 at 1:45 AM, Peter Brady petertbr...@gmail.com
wrote:
Hello list,
I have a 3D dataset with a Temperature field. My goal is to insert a
sphere
source and determine the tangential temperature gradient on the
surface
of
the sphere at various zenith angles. The data is output from the code
as
cell data. Here is the way I'm doing this (through pvpython)
1. Apply CellDataToPointData
2. Apply ComputeDerivatives (to get the 'Scalar Gradient')
3. Apply another CellDataToPointData (to turn the derivatives into
point
data)
4. Resample the data from step 3 with my sphere source.
5. Use a programmable filter to combine the xyz derivatives
appropriately.
The data is reasonable but it's fairly choppy. When I look at dT/dx,
dT/dy,
and dT/dz (before I project them onto the sphere surface), and plot
them
at
a particular zenith angle around the azimuth of the drop, dTdx and
dTdy
are
very smooth but dT/dz is fairly choppy (especially above the equator
of
the
drop). If I expand my sphere to a place where there's not a lot going
on
dT/dz seems to calm down. Is there a way to smooth dT/dz in the
location of
interest or should I try to write my own derivatives filter to make
them
smoother? Any thoughts?
Thanks,
Peter.
___
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Re: [Paraview] Creating Animations in Paraview, where's the Animation Inspector
I would like to create an animation in which the camera literally inspects various parts my model/scene. The sort of camera paths I need to specify are hard to manually describe as an animation curve (even very simple camera paths are hard to manually describe as animation curves). Is it possible to manually move the camera to various locations, and set a keyframe at each location as is the practice in 3d applications? This would be a _lot_ simpler than specifying animation curves by hand. Thanks, - Olumide ___ 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] Creating Animations in Paraview, where's the Animation Inspector
Yes. That is what the Interpolate camera locations track type choice is for. To use it, set that type for the camera and then add the track. Now double click on the track to pop up the Animation Keyframes dialog for the path and then double click on any Position ... entry to get to the camera location dialog. From there click on use current to copy in the current camera value. Note that although this lets you specify exactly where the camera is located and pointed at, the interpolation between those points is not a nice spline so making a nice animation with it is often not as easy as it sounds. I think, what we really need is a way to make the use current button apply to nodes in the follow path or orbit modes. There might be a way to do that that I am not aware of. If not please file a feature request. David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 On Thu, Apr 22, 2010 at 9:38 PM, Olumide 50...@web.de wrote: I would like to create an animation in which the camera literally inspects various parts my model/scene. The sort of camera paths I need to specify are hard to manually describe as an animation curve (even very simple camera paths are hard to manually describe as animation curves). Is it possible to manually move the camera to various locations, and set a keyframe at each location as is the practice in 3d applications? This would be a _lot_ simpler than specifying animation curves by hand. Thanks, - Olumide ___ 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] Creating Animations in Paraview, where's the Animation Inspector
Thanks. I've experimented with keyframes dialog. And you are right: the animation curve isn't nearly as nice as I'd expected. The standard solution to camera control in 3d software is to give the user access to the animation curves created by setting keyframes, so that the user than can set or correct the tangent/tension at the keyframes. Orbits are nice but they are very limited. Paths too are nice but they are extremely difficult to create define by hand. I'd vote for animation curves. - Olumide ___ 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
