Hi Oliver, hi Renaud, i'm still not getting the point of this computation. Why should somebody compute the volume and the surface from a polyhedral representation of an object? thats why i asked for the type of objects you want to compute the measures for. is the shape object everything you have for your object?
cheers, karsten R CM wrote: > Hi all, > I'm also very interrested about this subject > > I think olivier want to compute the mathematical area > of the shape : > you must make the sum of the areas of each triangle. > and for the mathematical volume, > i think it's more difficult... > perhaps with a octree method and test for each cell if > it's indside or outside the shape... > ( a non-trivial test ;-) ) > > anyone have a better solution ? > > Regards > > Renaud > > --- Joachim Diepstraten > <[EMAIL PROTECTED]> a > �crit : > Hi Olivier > > > > > how can I get the volume and the surface of a 3D > > object in java3d? > > > > Well you normaly describe the surface of your 3d > > objects in the Shape > > node so you already should have this. (Geometry = > > surface). I'm not > > sure what you mean by volume but you can get at > > least the BoundingVolume > > through the BoundingBox of your Shape node (this > > will be normally > > autogenerated). > > > > EOF, > > J.D. > > > > -- > > Explore SRT with the help of Java3D > > > (http://wwwvis.informatik.uni-stuttgart.de/relativity/minkowski) > > (http://www.antiflash.net/java3d/relativity (mirror) > > > > > =========================================================================== > > To unsubscribe, send email to [EMAIL PROTECTED] > > and include in the body > > of the message "signoff JAVA3D-INTEREST". For > > general help, send email to > > [EMAIL PROTECTED] and include in the body of the > > message "help". > > ___________________________________________________________ > Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran�ais ! > Yahoo! Mail : http://fr.mail.yahoo.com > > =========================================================================== > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body > of the message "signoff JAVA3D-INTEREST". For general help, send email to > [EMAIL PROTECTED] and include in the body of the message "help". =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
