Is there a way to draw geodesic lines on a Mesh similar to the Geodesic component for surfaces?

I implemented a method [image] Geodesic distance from points on mesh Here is a script to calculate exact geodesic distance from points on mesh. It is a transcription of Fast Exact and Approximate Geodesics on Meshes from http… And for the next question …

The problem is that I need them to run along the mesh from edge to edge. I need to cut the mesh into smaller meshes via geodesic lines.

The first video is what I am trying to do actually :slight_smile: “If it’s a subdivided quad-mesh, one can make NURBS patches and find geodesics on these” Exactly what i am trying to do. For some reason I fail. The geodesic component does not work if I join the Brep, nor I can manage a way to make…

It’s difficult to provide further advice without some examples (images/files) of what you’re dealing with. That said, the first video is based upon maintaining a mapping from the starting quad-faces, their subdivision/vertices, and the joined subdivided mesh that is form found. Using this mapping o…

The thing is that in order for the patterns to be as exact as possible, I need a geodesic line. Anything else simply does not do the trick. Too much error. Here is an example file Test Mesh.dxf (540.9 KB) The mesh itself is in NET-TRIANGLES layer. I also have the mesh U&V and edge layers.

I am really interested in the method from the video. Fits my idea very well. Where can I find more material on it? PS: Just looked at your work. Amazing stuff! OMG! :slight_smile:

I am checking your definition for mesh analysis. Absolutelly awesome!!! But I get this error when I open the file: [error]

[image] davidsmavrov: Where can I find more material on it? I’m afraid we never really published anything on this method (can maybe see about digging it up). That said, just tested out using Kangaroo2 (an older version FYI, so might be slightly different with later versions), and that seems t…

[image] davidsmavrov: But I get this error when I open the file That component implements the networkx Python module. There are several threads here and on the old GH forum on how to install this module, so have a search if you want to test out this option.

Ok! Will do so asap! OMG thank you! Will play with the Kangaroo solution too. Brilliant!

Geodesic lines on a Mesh

Grasshopper

danielbent (Daniel) July 17, 2020, 11:24am 18

Daniel Piker already translated it

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Geodesic lines on a Mesh

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