 <p>I just created a blog post that hopefully answers your question about projecting the points onto a solid.</p> <p><a href="http://modthemachine.typepad.com/my_weblog/2016/06/projecting-points-onto-a-solid.html" rel="nofollow">http://modthemachine.typepad.com/my_weblog/2016/06/projecting-points-onto-a-solid.html</a></p> <p>Regarding your second question about getting the solid as a point cloud; it is possible. You'll want to look at the CalculateFacets, CalculateFacetsWithOptions, and GetExistingFacets methods. These all do the same thing in that they return a set of points that represent a triangle approximation of the solid.</p>