How do I trim an open curve with given points?

[Joseph_Oster]

Shatter curves at intersection points

Im having trouble with what seems to be a basic problem: I got a geometry and want to cut the lines at the intersection of a line I projected onto the geometry (to cut out the right hand side of the model in the pic). [shatter_curve_at_intersection] The interception points are working fine but I dont get the shatter command to output anything I can work with. [shatter_curve_at_intersection01] Edit: Trim with Region as another possible way doesnt work here very well because it seems to cut t…