Mesh+ workaround for m+Rings

I need the functionality of the m+Rings component of the Mesh+ plugin.

The goal is to extract the following lines (green) out of the attached mesh:

mesh.3dm (167.6 KB)

This can be achieved using the m+Rings component of Mesh+. However this plugin currently only works in Windows. Any other ideas how this can be achieved? Or to formulate the sub-question: How can one retrieve the topological distance of one vertex to another?

@DavidMans any ideas?


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It looks like WarpWeft could work there. You could then join them and sort the warp curves by where they meet one of the weft curves if you need them ordered.

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good point , that’s what I tried at first. But it does not seem to work here:

ah yes, I see those triangle fans make it impossible. It works for the rest

Also - Isn’t all of Mesh+ user objects? I’m curious why it doesn’t run on Mac.
(edit - I think I figured out why - it looks like many of the M+ objects contain VB scripts, which have a few issues on Mac as mentioned here. Converting them to C# would probably avoid these problems. There are some automated converters like this which will do the bulk of the conversion, though they usually need a bit of manual fixing too for stuff like case-sensitivity)

Awesome, that’s a great workaround! Thank you

The debug message usually shows the following:

Error (BC30451): 'ubound' is not declared. It may be inaccessible due to its protection level. (line 107)

Tried the converter, but it gives me a ton of errors, when pasting the Mesh+ code there… error messages I don’t understand currently tbh. But thank you for the suggestion!

Hey Rudi,
Really late replying to this…
Here is a c# implementation.
M+3 (whenever it gets finished) will be a single gha library and should be mac compatible. (8.4 KB)

Hey @DavidMans, thank you very much for your C# implementation, and sorry for my late reply! Any news on M+3? There are some amazing functionalities in M+3, that I would love to be able to use on Rhino macOS!

Cheers, Rudi

Its getting close. Im down to 10 components then bug testing. Hope to release a buggy alpha very soon.


Awesome! Much success for the remaining components then, looking forward!