CAD - distance from point to surface

Given a point(xyz) and an IGES description of a group of bspline surfaces, determine the minimum distance from the point to the closest surface of those provided. ## Deliverables Distance signed positive if above the surface based on outward surface normal, negative if below. Provide coordinates of closest point on surface. Provide IJK values of surface at that point. Values to be written to a text file. ## Deadline information Signed distance must be accurate within +/-.00004. Will be verified using Catia and UniGraphics