In the attached, the closed triangular object refuses to make a planar surface because it’s not considered planar - one of the sides is an “arc” with a radius of 9.08173e+06. This refuses to simplify into a line segment…
NoPlanarSrf.3dm (40.1 KB)
In this case the arc’s maximum distance from line segment connecting its ends is .005 and the file tolerance is .001. So I don’t think SimplifyCurve should replace the arc. However, the way it work currently the ON_ArcCurve will never get replaced with a line segment. I think we should be using tolerance to make this decision.
Edit - OK, didn’t realize it was that far out… I also think that “flat” arcs that can be converted to lines within file tolerance should be.
That arc itself was a result of another simplification of an intersection… Don’t remember exactly how it got created.
Hi Mitch, Pascal and Greg,
i’ve got 2 cases in V6 where
_SimplifyCrv does not merge linear segments which have zero tangent difference. This also applies to RhinoCommon using
SimplifyCrv.3dm (26.1 KB)
tried different tolerances but it won’t do it. If i
_Join it works. What could be the issue ?
Hi Clement - the seam falls on that location on both curves - if you explode and join, the seam is by chance moved to one of the corners.
Thank you Pascal, i did not pay attention to the seam. Maybe
_SimplifyCrv needs an optional argument to include simplification of the first and last segment of the curve ?