Thanks Li, I also thought about the method you suggested, but before going that path I wanted to know if there are any other option.
Fabrice, I have an object mesh and I want to cut it with an arbitrary plane (typically an xy-plane at different z-position determined by an slider). I want to build (and display) the 2D polygon of that cut. See the following skematic: http://www.softeng.cse.clrc.ac.uk/everest/docs/post-processor/post_html/img10.gif joar On Jun 26, 12:11 am, Fabrice3D <[email protected]> wrote: > what is it you want to do exactly? > > is it the mountain that must be separated from sea level? > the mesh cut in half? > ? > > Fabrice > > On Jun 25, 2009, at 11:55 PM, Li wrote: > > > Sounds like a difficult task to me... > > > All I can think of is using a camera, placing it at a strategic > > point and setting up materials on the geometries so that if you > > render it and process it you could get an image of what your > > polygons might look like. All this with a precise renderer. > > > Thats just a cheat though, if you want precision, I'm afraid this > > would involve some complex mathematics. Plus, I'm not sure if any > > part of the engine handles anything like this. > > > Hope it helps! > > > On Thu, Jun 25, 2009 at 6:18 PM, joar <[email protected]> wrote: > > > Is there any way to compute the intersection between a Mesh object and > > a 3D plane? > > I have some meshes that I want to intersect with 3D planes at > > arbitrary positions and draw the resulting 2D polygon on that plane. > > thanks, > > joar
