CreateBooleanRegions Rhino7/8

Scripting
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1

I’ve encountered an issue with the CreateBooleanRegions method in Rhino 8—its behavior is completely different from how it worked in Rhino 7. I’ve already tried changing the referenced Rhino 8 version in the project, adjusting the tolerance precision and other parameters in the script, but I still can’t get the correct result. Could someone please help me figure out if I’m missing a specific setting or step, or if Rhino 8 has modified some of the underlying code that prevents CreateBooleanRegions from functioning as it did in previous versions? Below are excerpts of the code and the Grasshopper data.

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"""
Compute boolean regions from set of intersecting curves.
Author: Anders Holden Deleuran
"""

import Rhino as rc

Regions = []
if Curves and Plane:
    
    # Compute boolean regions
    regs = rc.Geometry.Curve.CreateBooleanRegions(Curves,Plane,Combine,Tolerance)
    
    # Extract regions
    for i in range(regs.RegionCount):
        crvs = regs.RegionCurves(i)
        Regions.extend(crvs)

CreateBooleanRegions-Rhino7 Data.gh (185.2 KB)

2

I’m currently using the code provided by @ AndersDeleuran. Could you please help me troubleshoot what might be causing the issue?