Am Freitag, den 19.12.2008, 08:46 +1100 schrieb Paul Nicholls: > "Marc Santhoff" <m.santhoff-zqrnuxuvxa0b1svskn2...@public.gmane.org> wrote > in message news:1229580231.333.8.ca...@localhost.das.netz... > > Am Donnerstag, den 18.12.2008, 09:02 +1100 schrieb Paul Nicholls: > >> Hi all, > >> I am wondering if anyone here has ever managed to use the free > >> open-source OpenCASCADE 3d tools (www.opencascade.org) with Pascal > >> before? > > > > I don't think so, but I remember two facts: > > > > The toolkit is huge, porting will be a lot of work. > > And it'll be complicated or maybe impossible because it is written in C > > ++. IIRC there are some problems related to C++ objects in libraries and > > fpc. > >> An already developed ActiveX OCX control has been developed that may > >> work but it costs lots of money. > > > > IIRC there was Java binding back in version 4 of opencascade (the > > version I had to deal with). I'm not sure if that could be used as a > > guideline for adapting to object pascal, though. > > > > HTH anyhow, > > Marc > > > > I was thinking more along the lines of perhaps creating a compatible dll > that could be used for Pascal/Delphi, and if necessary, flattening when > necessary method calls to plain functions, etc. > > I'm sure this sort of thing has been done before as you can use it under > Visual Basic, Java, C#, Python, Ruby.
I *think* that could be doable, I'm not so sure currently if there were general problems using C++ or if it had to do with ref-counted objects, memory management, or maybe only forms and graphical objects. Hopefully someone else can speak up here ... > I have seen various people create a single dll containing the OpenCASCADE > routines, but I am not sure how. > > One person has made > > "NaroCAD, a free open source parametric modeling CAD application with C#: > http://sourceforge.net/projects/narocad/. The project contains a > .Net(C++/CLI) wrapper layer and also a wrapper code generator application, > you can generate your own wrappers in the language you want. > The OCC 6.3.0 wrappers are compiled under one assembly named > OCWrappers.dll." > > See the thread below > http://www.opencascade.org/org/forum/thread_14766/ There is FreeCAD, too. If all people starting a CAD program on sf.net would unite, that would be quite enough manpower to build a complete free CAD application in three months. ;) Something similar, hopefully explaning what you need: http://info.borland.com/borlandcpp/papers/bc360/ HTH, Marc _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
