algorithmic modeling for Rhino
Im trying to alter a brep by moving some of its vertex points, but there are enough that I do not want to manually rebuild the brep. Its there are short cut. IE
I want to alter the shape of the brep in the same way I can alter a mesh by using control points in Rhino.
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It depends on the Brep in question. If your faces are going to remain planar, then I would explode the Brep, get the polylines of each of its faces, move the control points of the polylines (ensuring that everything stays planar), and then reverse the process, reconstructing the polylines, the planar surfaces, and rejoining into Breps.
If your faces will not remain planar, but they each have only 3 or 4 edges, you can try something a little more complex using EdgeSrf... but that can get tricky.
Also, if this is something you're just doing for convenience and you don't need to do it in grasshopper, look at Rhino 5.0's "SolidPtOn" command. This will give you editable control points for your polysurface, although there are some edits which it won't allow you to make if they would invalidate the polysurface topology/structure.
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