Alexander has some interesting biarc code too: http://code.google.com/p/openshapefactory/source/browse/SFMQTDLL/src/src/shapefactory.cpp
See this thread: http://www.opencascade.org/org/forum/thread_20706/ -jelle On Fri, Mar 16, 2012 at 4:48 AM, Dan Falck <dfa...@frontier.com> wrote: > ** > I had a look on my desktop machine: > > look in the HeeksCAD project at HSpline::ToBiarcs in HSpline.cpp > > http://code.google.com/p/heekscad/source/browse/trunk/src/HSpline.cpp > > look around line 571 > > Let us know what you come up with. I am interested in this one too, for > CNC code generation. > > Dan > > > On 03/15/2012 06:40 PM, Dave Cowden wrote: > > Thanks for the tip, I will look! > On Mar 15, 2012 6:40 PM, "Dan Falck" <dfa...@frontier.com> wrote: > >> Dave, >> You might look in some the C++ code in the HeeksCNC project for >> inspiration. Dan Heeks did a pretty good job with spline to arc conversion >> with OpenCascade. >> Dan Falck >> >> Sent from my HTC smartphone on the Now Network from Sprint! >> >> >> ----- Reply message ----- >> From: "Dave Cowden" <dave.cow...@gmail.com> >> To: "pythonOCC users mailing list." <pythonocc-users@gna.org> >> Subject: [Pythonocc-users] Decompose BSpline to arcs and lines? >> Date: Thu, Mar 15, 2012 3:17 pm >> >> >> Thanks for the pointer, Thomas! >> >> >> On Thu, Mar 15, 2012 at 10:00 AM, Thomas Paviot <tpav...@gmail.com>wrote: >> >>> 2012/3/14 Dave Cowden <dave.cow...@gmail.com> >>> >>>> Hi, all ( especially Jelle ): >>>> >>>> I'm trying to solve a problem i just know someone else has solved: >>>> converting a bspline into arcs and lines. ( Actually in my case i have a >>>> list of points, through which I am interpolating a bspline-- so i could >>>> skip that step actually. ) >>>> >>>> Anyway, I came across this OCC thread, which yielded several ideas >>>> but its not clear there was a solution: >>>> >>>> http://www.opencascade.org/org/forum/thread_20706/ >>>> >>>> I tried to fetch the URL Jelle Posted for hb-robotics-code on google, >>>> but the link is dead. >>>> >>>> >>>> Does anyone know if there s any pythonOCC code I can grab that will >>>> make solving this problem easier? If not, I certainly think its worth >>>> adding to pythonOCC. >>>> >>>> Since my problem doesnt care about the intermediate bspline ( I have >>>> a list of points ), then I may instead use something along the lines of one >>>> of these algorithms: >>>> >>>> http://miarn.sourceforge.net/pdf/a1738b.pdf >>>> http://www.bmva.org/bmvc/1988/avc-88-040.pdf >>>> >>>> which seems very fast. It is for arc detection, but of course what's >>>> left is just lines. >>>> >>>> Has anyone else had experience with this problem? >>>> thanks a lot! >>>> Dave >>>> >>>> >>> Hi Dave, >>> >>> I'm not aware of any work related to BSpline to arc/lines >>> decomposition using pythonOCC. Maybe this reference >>> http://www.sciencedirect.com/science/article/pii/S0010448599000196could >>> also help. >>> >>> Regards, >>> >>> Thomas >>> >>> >>> _______________________________________________ >>> Pythonocc-users mailing list >>> Pythonocc-users@gna.org >>> https://mail.gna.org/listinfo/pythonocc-users >>> >>> >> >> _______________________________________________ >> Pythonocc-users mailing list >> Pythonocc-users@gna.org >> https://mail.gna.org/listinfo/pythonocc-users >> >> > _______________________________________________ > Pythonocc-users mailing > listPythonocc-users@gna.orghttps://mail.gna.org/listinfo/pythonocc-users > > > > _______________________________________________ > Pythonocc-users mailing list > Pythonocc-users@gna.org > https://mail.gna.org/listinfo/pythonocc-users > >
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