attachment file have two curves,infact they have two intersect points,but I just can get one point use Intersect command or use c++ sdk function.cs.rar (75.8 KB)

# Curve intersect with curve get a wrong result

**Helvetosaur**#2

In fact, no, the two curves miss each other by .002 at the upper point, and your file tolerance is .001, so they technically do not intersect at that point.

HTH, --Mitch

**dale**(Dale Fugier) #4

Using this sample on your model with an intersection tolerance of 0.1 returns 2 intersection events (and thus two points).