Rhino 6 SR27 critical issue with Grasshopper component via Python

Scripting
1

Hi,

Code I’ve had in production for a year seems to have been broken by the latest version of Rhino.

I do not know if this is a general issue with calling into grasshopper components from the iron python environment, or if it specific to ghpythonlib.components.catenary().

As of Rhino 6 SR27, a call to ghpythonlib.components.catenary() will return ‘None’ with the following warnings:
Warning: Catenary: input 1 point_a. warning: Input parameter A failed to collect data
Warning: Catenary: solver component. warning: Input parameter A failed to collect data

Please let me know where I can download prior Rhino Service releases. I’m on a critical job and need to revert to a working version immediately.

Thank you.

Minimal example:


import  rhinoscriptsyntax as rs
import  Rhino

import  ghpythonlib.components as ghc
from    Rhino.Geometry import Vector3d, Point3d

if __name__ == "__main__":
        cat = ghc.Catenary( Point3d(0,0,0), Point3d(100,100,0), 200, Vector3d(0,0,-1) )
2

Hello,

I’m not sure who to tag at McNeel who could try this example and comment.

If any other users know, please post back.

Thanks.

3

Not sure if it helps you get to the bottom of the problem, but this runs fine on my version on SR27

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(and also within RhinoPython).

4

Thanks, but this issue occurs when running the script from the Python Editor (not in grasshopper).

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5

Okay, I had restarted rhino several times and the problem reoccured. However, I had not thought to completely restart the computer-- Which solved the problem.

johnharding- thanks for helping out when I was down in the rabbit hole.

6

That’s great to hear, all the best : )