This works indeed. It's been a while since I have programmed in Python, I should have thought of it :) Thank you very much!
Milos On Thu, Sep 16, 2010 at 12:31 AM, pat marion <pat.mar...@kitware.com> wrote: > Why not something like- > > > import subprocess > > for f in filenames: > subprocess.call(["/path/to/pvpython", "process_single_dataset.py", f]) > > > Pat > > > On Wed, Sep 15, 2010 at 5:35 PM, Milos Ilak <i...@mech.kth.se> wrote: > >> Hi, >> >> I have a related question. I would like to use the Python interface to >> create movies of large datasets from .png files. Having the .pngs gives me >> flexibility in encoding them. I know that ParaView can export animations as >> .pngs files, but I would like to do this in offscreen mode and without >> running the animation in ParaView first. >> >> I haven't been able to figure out how to run a single instance of ParaView >> during every iteration of a loop over file names (or, say, camera angles) >> within a Python script, i.e. open ParaView, work on one file, output a .png, >> and then close ParaView. >> >> The fix below with clearing the pipeline each time seems to work, but I >> was wondering if it would be possible to invoke ParaView 'from scratch' >> during each call and how. Also, would there be any disadvantages to doing >> that, as opposed to having a single instance of ParaView during the entire >> loop and clearing the pipeline as below? >> >> I apologize if this has been discussed, but I haven't been able to find >> any of those discussions if so. >> >> Milos >> >> >> >> >> >> >> On Wed, Sep 15, 2010 at 10:12 PM, logari81 <logar...@googlemail.com>wrote: >> >>> Thank you for the quick response. You are right, what I actually need is >>> to clear the pipeline. Your snippet seems to work well except some >>> naming counters which are not reset but in my use case this isn't very >>> important. >>> >>> Thanks a lot for your help. >>> >>> Best Regards >>> >>> Kostas >>> >>> On Wed, 2010-09-15 at 15:49 -0400, pat marion wrote: >>> > If your intention is to just clear the pipeline, try this code, copied >>> > from the paraview coprocessor template: >>> > >>> > def GetProxiesToDelete(): >>> > iter = servermanager.vtkSMProxyIterator() >>> > iter.Begin() >>> > tobedeleted = [] >>> > while not iter.IsAtEnd(): >>> > if iter.GetGroup().find("prototypes") != -1: >>> > iter.Next() >>> > continue >>> > proxy = servermanager._getPyProxy(iter.GetProxy()) >>> > proxygroup = iter.GetGroup() >>> > iter.Next() >>> > if proxygroup != 'timekeeper' and proxy != None and >>> > proxygroup.find("pq_helper_proxies") == -1 : >>> > tobedeleted.append(proxy) >>> > >>> > return tobedeleted >>> > >>> > # explicitly delete the proxies -- we do it this way to avoid problems >>> > with prototypes >>> > tobedeleted = GetProxiesToDelete() >>> > while len(tobedeleted) > 0: >>> > Delete(tobedeleted[0]) >>> > tobedeleted = GetProxiesToDelete() >>> > >>> > >>> > On Wed, Sep 15, 2010 at 3:21 PM, pat marion <pat.mar...@kitware.com> >>> > wrote: >>> > I'm afraid your use case is not well supported. There is >>> > logic in the paraview gui application that ensures a clean >>> > disconnect, which includes a hard reset of the python >>> > interpreter context. Using only python modules, there is >>> > manual clean up required after a disconnect that is not yet >>> > supported. >>> > >>> > You might find that your script still works, you'll just be be >>> > spammed with those error messages. Also, try calling >>> > Connect() instead of servermanager.Disconnect(...). This will >>> > disconnect & reconnect a little more cleanly, but still not >>> > perfect. >>> > >>> > Pat >>> > >>> > >>> > >>> > >>> > On Wed, Sep 15, 2010 at 2:52 PM, logari81 >>> > <logar...@googlemail.com> wrote: >>> > In the meanwhile I have realized that the error occurs >>> > only when I >>> > include a Delete() statement in my script. Thus the >>> > following very >>> > simple script reproduces the error: >>> > >>> > import sys >>> > sys.path.append('/usr/lib/paraview') >>> > from paraview.simple import * >>> > cone = Cone() >>> > Delete(cone) >>> > >>> servermanager.Disconnect(servermanager.ActiveConnection) >>> > >>> > Hopefully someone can explain this behavior. >>> > >>> > Best Regards >>> > >>> > Kostas >>> > >>> > >>> > >>> > On Wed, 2010-09-15 at 18:59 +0200, logari81 wrote: >>> > > Hi, >>> > > >>> > > actually I have the same question as in this >>> > previous email: >>> > > >>> > > >>> > >>> http://www.paraview.org/pipermail/paraview/2008-March/007506.html >>> > > >>> > > I use the python interface in an application that I >>> > am developing and I >>> > > import paraview with: >>> > > >>> > > from paraview.simple import * >>> > > >>> > > During the import a connection to the builtin server >>> > is also established >>> > > silently. Though, in my application I need to clear >>> > the pipeline >>> > > occasionally in order to begin with a new output, so >>> > I tried >>> > > disconnecting from the server with: >>> > > >>> > > >>> > >>> servermanager.Disconnect(servermanager.ActiveConnection) >>> > > >>> > > but I receive the error: >>> > > >>> > > ERROR: >>> > > >>> > In >>> /build/buildd/paraview-3.8.0/Servers/Common/vtkProcessModuleConnectionManager.cxx, >>> line 175 >>> > > vtkProcessModuleConnectionManager (0x1d33240): >>> > Invalid connection ID: 5 >>> > > >>> > > This behavior is tested with ParaView 3.8.0 on >>> > Ubuntu 10.04. >>> > > >>> > > I would be glad for any hints. >>> > > >>> > > Kind Regards >>> > > >>> > > Kostas >>> > > >>> > >>> > >>> > _______________________________________________ >>> > 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 >>> >> >> >> >> -- >> Miloš Ilak >> Linné Flow Centre >> KTH Mechanics, Stockholm >> +46(0) 8 790-7152 >> www2.mech.kth.se/~ilak <http://www2.mech.kth.se/%7Eilak/> >> >> >> > -- Miloš Ilak Linné Flow Centre KTH Mechanics, Stockholm +46(0) 8 790-7152 www2.mech.kth.se/~ilak <http://www2.mech.kth.se/%7Eilak/>
_______________________________________________ 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