I don't know how to do something that I think should be pretty simple but I cannot find my way in the documentation. Suppose I made several connected segments using GCE2d_MakeArcOfCircle and GCE2d_MakeSegment. I now want to make one object, a curve, out of these segments. So it seems I am supposed to use BRepBuilderAPI_MakeEdge2d and then make a wire out of that with BRepBuilderAPI_MakeWire, but now I want to have access to the underlying composite curve to, for example, find coordinates at some points on that curve given arc-length parameter t. Or for example given x coordinate find y of a point P(x,y) which lies on the curve and find t at that location. It is rather basic 2d sketching stuff. How can this be done? Regards,VJ
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