from some mold-making-workflow:
initial surface:
created from an isocurve from a filletSrf - so it s rational !
expected result
_pointsOn
_selV
_setPt (only z to world …)
bad result via edge-Selection
if i do not select the CVs, but (sub-) select the edge directly , and do the same setPt - this is what i end up with - see the strange inner isocurve.
the cornerpoint looses it s weight (should be 0.853553414344788 but is 1.0)
setPt_of_untrimmedEdge_00.3dm (81.1 KB)