Try to split a curve

Hi just something simple can lead to frustration. I am trying to trim off the extra bit outside the boundary in gallery 1. But somehow I realize I am not able to find the intersections thus I not able to shatter further down. Does anyone know why would it happen? Is it because it is a poly-line?

Replies to This Discussion

Permalink Reply by Ivan Lo on February 12, 2013 at 7:15pm

Permalink Reply by Hannes Löschke on February 13, 2013 at 2:16am

Hard to tell from a screenshot. Is your boundary a single curve or a set of four?

If the boundary is more than one curve better join them to one. Otherwise GH will match boundary 1 to spiralsegment 1, boundary 2 to segment 2 and so on... and check only those combinations for intersection.

Permalink Reply by Ivan Lo on February 13, 2013 at 2:21am

The spiral is a polyline and the boundary is a rectangle which is also a polyline. A polyline is read as a curve, right? So the approach using CCX is appropriate? But it seems i dun get any results at all.

Permalink Reply by Hannes Löschke on February 13, 2013 at 2:40am

Again: hard to tell with only a screenshot.

CCX is the right way. Likely cases for failure is data mismatch, which shouldn't be a problem for intersecting two single polylines, or the curves don't actually intersect because they aren't on the same plane. Other than that, the component should turn red, indicating an error.

Permalink Reply by Yoann Mescam (Systemiq) on February 13, 2013 at 3:10am