In creating construction planes as surfaces in Grasshopper/Python/Rhinocommon I have had to stop creating them in a way that they both intersect at their origin or I can no longer reliably get an intersection between them to come out of Rhino.Geometry,Intersect.Intersection.BrepBrep(…). When creatin…

Hi @vectorabc , My apologies, but I cannot follow what you are trying to do. Can you try again to explain what problem you are trying to solve? Have some code that isn’t working for you, that we can run here, might help us. Thanks, – Dale

In my Rhino document, enclosed above, I cannot achieve a simple intersection curve from two clearly and simply intersecting NURBS plane surfaces. Rhino says no intersection found. If I recreate my original surfaces by extracting their borders and creating new planar surfaces from the borders, it ac…

It is under wrong category, but no intersection produced here too.

[image] vectorabc: In my Rhino document, enclosed above, I cannot achieve a simple intersection curve from two clearly and simply intersecting NURBS plane surfaces. Rhino says no intersection found. In my test here (6.27.20163.15081, 11-Jun-20) Rhino finds the intersection line between the tw…

Helvetosaur, Wow. This is with WIP version 7.0.20168.13075, 6/16/2020. If I re-download my enclosed file above and try again, same thing. Piotr, Indeed, I didn’t mean to post this in scripting, sorry. It’s a WIP issue or general Rhino issue.

[image] vectorabc: This is with WIP version 7.0.20168.13075, 6/16/2020 OK, can repeat that, looks like it’s a WIP issue… Changing the category to Serengeti. @dale

Got it, thanks. https://mcneel.myjetbrains.com/youtrack/issue/RH-59237 – Dale

My workaround for now is to no longer generate symmetrical construction planes, but kludge them a bit by going from -1.1X to X when created by: midplane_surface = Rhino.Geometry.PlaneSurface(midplane, Rhino.Geometry.Interval(-big * 1.1, big), Rhino.Geometry.Interval(-big * 1.1, big))

Breps Intersection Bug (WIP)

Serengeti (Rhino WIP)

brian (Brian Gillespie) June 30, 2020, 10:33pm 11

RH-59237 is fixed in the latest WIP

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Breps Intersection Bug (WIP)

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