Get interior regions and exterior polycurve of a curve network

[laurent_delrieu]

@Intuos

Clipper only supports polylines.

Yes, but Mc Neel is working on a new Offset for Rhino WIP, hope it will as good as Clipper. I can’t find the other discussion on subject but there is this one.

Shrinkwrap, but for curves? (more robust but less accurate _offsetcurve?)

Hi, I’ve been poking around in offset quite a bit lately to help return multiple curves when an offset curve intersects itself. Here’s the specific issue. I’m hoping to have it turned on in the WIP here soon. [Ex_1] The results are a bit more dramatic with OffsetMultiple [Ex_3] [Ex_2] These changes should ripple out through the rest of Rhino that rely on offsetting a curve. This would also include curve offsets in Grasshopper but I haven’t checked yet. What other problems are you having w…

@Intuos

speeding up the region union part

For a better performance you can play with tolerances inside Rhino. Grasshopper dosn’t show this option but it must choose Rhino tolerances
0.0001

0.1

https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Geometry_Curve_CreateBooleanRegions.htm