Closed Surface

Is the surface you''re generating a convex hull of the set of points, or something else? What is it being used for?

Its a convex hull, i''m writing portion of a tracing software that loads autoCAD files. To make acquisition of points easy user has to click the lines, thereby generating lotsa points which MUST represent a closed shape...and i need to generate a convex closed shape. I have written code that can acquire one closed shape at a time... but my client is asking mustiple..help!

Do you mean something like this?

thanks anyway... something like tht...must b 2d...& bcos the time factor involved in learning the closed surface generation will be too high... do you have something simpler???