Precision of Curve.Extend method

I am creating an optical ray trace plugin and I am using the Curve.Extend method to find the intersection of a ray (always a straight line) and a surface. How can I know the level of precision of the intersection calculation done with this method? Is there a way to set this programmatically?

Hi @LarryBoxler,

The intersection tolerance used by Curve.Extend, when extending to know geometry, is the document’s model absolute tolerance.

– Dale

Great - Thanks!