Surface Closest Side

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Permalink Reply by Daniel González Abalde on October 10, 2017 at 12:54pm

I think IsoStatus is intended for use with .Extends() method, or perhaps some more. I mean, it's not what you want.
Look for the closest one from the collection of naked edges.
Curve[] MyNakedEdges = MySurface.ToBrep().DuplicateNakedEdgeCurves(true, false); 
double minDist = double.MaxValue;

Curve closestEdge = null;

foreach(Curve ne in MyNakedEdges){

   double t;

  ne.ClosestPoint(pt, out t);

  double dist = pt.DistanceTo(ne.PointAt(t));

  if(dist<minDist){

    minDist = dist;

    closestEdge = ne;

  }

}