SOLID 3.5 (www.dtecta.com) offers distance computation between arbitrary objects (polygon meshes, quadrics, boxes, etc). I offer SOLID 3.5 under GPL/QPL terms. I have no plans for integrating SOLID 3.5 into OSG, so you'll have to do it yourself. But I guess that should not be too hard. You might need to create a separate pass through a NodeVisitor to get all the world transforms for the collision objects into SOLID. I can give you some limited support by answering your questions. Please e-mail me directly through:
gino "at" dtecta "dot" com Cheers, Gino 2008/5/6 Brian R Hill <[EMAIL PROTECTED]>: > Henry, > > You are probably on your own with this, unless someone else has integrated > those specific libraries in their OSG application. I haven't looked into > them because of their license. > > Good luck. > > Brian > > [EMAIL PROTECTED] wrote: ----- > > > To: OpenSceneGraph Users <osg-users@lists.openscenegraph.org> > From: "Mrs. Mister" <[EMAIL PROTECTED]> > Sent by: [EMAIL PROTECTED] > Date: 05/06/2008 10:39AM > Subject: Re: [osg-users] Collision detection and Distance measuring in > OSG > > hello again, > > thx Brian, i looked at those but they dont have distance > measuring. > > i found something that supports collision and distance measuring: > http://www.cs.unc.edu/~geom/SSV/ > > i intgerated it, but dont know if i made this good. > i can check for collision of tri-meshes and get minimum distance > and distance tolerance querys. > > if anyone want to look at the code and help with my integration issues > just write a mail - i think its good basis, but im not long programming > in osg. > > byebye > henry > > Brian R Hill wrote: > > There are many collision detection libraries out there. Licensing and > > difficulty of integration are the big issues. > > google collision detection > > http://www.cs.unc.edu/~geom/collide/ > > http://www.win.tue.nl/~gino/solid/ > > > > Brian > > > > [EMAIL PROTECTED] wrote: ----- > > > > > > To: OpenSceneGraph Users <osg-users@lists.openscenegraph.org> > > From: "Mrs. Mister" <[EMAIL PROTECTED]> > > Sent by: [EMAIL PROTECTED] > > Date: 05/06/2008 06:08AM > > Subject: Re: [osg-users] Collision detection and Distance measuring in > OSG > > > > hello again, > > > > thx for answering, but i need geometry to geometry collision detection > > and minimal distance computation. do you know any library which can > > handle that? > > > > bye > > henry > > > > Gordon Tomlinson wrote: > >> You don't really need a another library to workout the distance between > > 2 > >> geodes or points > >> It's a straight forward calculation. > >> > >> Simple get the positions of the geometries center or collision points > >> > >> distance = sqrt( square( start[0] - end[0] ) + square( start[1] - end > > [1] ) > >> + square( start[2] - end[2] ) ); > >> > >> > >> Depending on the collision detection you want, simple isector collions > > works > >> and is quite fast and provide in OSG > >> See the exmaple for various different methods > >> > >> Now if you want geometry to geometry collison detection then you will > > need > >> to handle that either your self or through some 3rd party code > >> > >> > >> > >> > >> -----Original Message----- > >> From: [EMAIL PROTECTED] > >> [mailto:[EMAIL PROTECTED] On Behalf Of Mrs. > > Mister > >> Sent: Monday, May 05, 2008 12:23 PM > >> To: osg-users@lists.openscenegraph.org > >> Subject: [osg-users] Collision detection and Distance measuring in OSG > >> > >> hello, > >> > >> i want to do collision detection and distance measurung in osg between > >> geodes. can someone advise me to a library which has been prooved with > > osg. > >> so that i can start up working. > >> > >> i just tried SWIFT++ (http://www.cs.unc.edu/~geom/SWIFT++/) which can > > handle > >> distances. but the source is very old and a "make" doesnt compile > without > >> own chnages of the swift++ source. it compiles, but the program > segfaults > > in > >> the swift library. > >> > >> now im stuck. > >> > >> i did: > >> tesselate geodes and get a array of vertices of triangles. this i fed > > into > >> the collision/distance library to use their functions. > >> > >> maybe someone has an idea. > >> > >> bye > >> henry > >> _______________________________________________ > >> osg-users mailing list > >> osg-users@lists.openscenegraph.org > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >> > >> > >> _______________________________________________ > >> osg-users mailing list > >> osg-users@lists.openscenegraph.org > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >> > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > > > > This is a PRIVATE message. 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