I've removed the display initialization until after all of the geometry calculations, not a factor in this case. The longitudinal cuts take ~10 minutes each!
Thanks for the excellent suggestions. I don't think parallelization will work in this particular case, but I think that it will help in a variant of this case, i'll be examining the referenced code. I'd like to try the cut with compound object but I cannot find any examples. Perhaps some pseudo-code indicating how to make a compound object out of a list of solids. On Tue, Jun 22, 2010 at 3:42 AM, Jelle Feringa <jelleferi...@gmail.com>wrote: > You can also speedup the slicing process by distributing the computation > over many cores (with the help of the multiprocess python module). Have a > look to the slides 17 and 18 of this slideshow: > http://www.pythonocc.org/resources/presentations_events/product-data-exchange-2009-conference-pde2009/. > This multiprocess slicing is enabled by the shared serialization of > TopoDS_Shape objects. > > The source code is available at: > http://code.google.com/p/pythonocc/source/browse/trunk/src/examples/Level2/Concurrency/parallel_slicer.py > > > True, for computing slices the multi-core approach works. > However -and I think this is the case we're dealing with- if you change the > object than of course using several processes doesn't speed things up, since > the processes will simple be waiting for another process to finish. Fotios > advice on constructing a compound object and than performing the boolean > operation is most likely the way to go. I also used that trick a number of > times with success. > > A note on display speed; by default, the display.DisplayShape method > updates the viewer. If you use the display.DisplayShape( someShape, > update=False ) the viewer will not redraw, which results in a considerable > speed up. Note that you can also supply a list of TopoDS_* instances as > argument. > > -jelle > > _______________________________________________ > Pythonocc-users mailing list > Pythonocc-users@gna.org > https://mail.gna.org/listinfo/pythonocc-users > > -- Charles McCreary P.E. CRM Engineering 903.643.3490 - office 903.224.5701 - mobile/GV
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