Perpendicular frame could not be solved.gh (6.9 KB) I am using R8 SR13 on Windows 11. [image]

I baked the arc, moved the middle control point away and back and then it works. Weird.

[Perpendicular frame_2024Dec1a] Perpendicular frame_2024Dec1a.gh (4.6 KB)

Perpendicular_frame_script_cs.gh (9.7 KB) Evaluating the curve with rhinocommon works… the attached script does the job. so maybe it is a bug ? private void RunScript(Curve crv, double t, ref object a) { Point3d ptt = crv.PointAt(t); Vector3d vt, vn, vy; vt = crv.…

I have the same issue, opened the gh code in rhino 7 and perp frame worked. BUG in rhino 8 PERPFRAME.gh (18.4 KB)

[image] Danel Wazana: I have the same issue, opened the gh code in rhino 7 and perp frame worked. BUG in rhino 8 I don’t know what you expect but don’t see any issue (other than ‘Display | Preview Plane Size’) in this code between R7 and R8? [PERPFRAME_2025Mar17a] PERPFRAME_2025Mar17a.gh …

Hi @Quan_Li , Here the ticket RH-86538 . Thanks for reporting.

@kike ,Please also look into this, see if this is a bug. [Bug?] Trimmed surface’s Isocurves missing at the seam position - Grasshopper - McNeel Forum [BUG?] Trimmed surface shows fewer isocurves - Grasshopper - McNeel Forum

RH-86538 is fixed in Rhino 8 Service Release 20

Bug? "Perpendicular frame could not be solved"

Grasshopper

Quan_Li (Quan Li) December 5, 2024, 1:46am 5

Is this a bug?

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Bug? "Perpendicular frame could not be solved"

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