Would anything cause a Curve to not draw when passed to Rhino.Display.DisplayPipeline.DrawCurve() (as part of a derived display conduit)? I am calling this in a loop and some of the Curves draw and some do not. If I inspect the curves, all have IsValid = true. They are PolyCurves (composed internally of PolyLineCurve and LineCurve)… If I add them to the doc, they look fine. They just aren’t drawing in the conduit. They are within the view bounding box (there is other geometry under them drawing fine). They are fairly long curves but I draw long curves this way all the time, and it seems quite random, though it is very repeatable.
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