Hey everyone, I’m working on a project where I’m adding geometry to many subdivided surfaces, and I’m struggling to remove the points along the edges. I’m looking to have only the full subdivision “squares” on the surface, to apply the egg geometry to. I’ve tried using “Point in Brep” after the cen…

This version projects a SqGrid of points onto the surface which, as you can see, results in more evenly spaced points controlled by the ‘PtSep’ slider, independent from UV lines. [cull edge points_2024Jan7c] cull edge points_2024Jan7c.gh (21.2 KB)

[image] Help Us Help You Grasshopper Asking questions and getting answers is what this forum is all about. Although people are generally very helpful, there are things you can do to improve your chances of getting good and quick answers. Below you will find some suggestion…

Hey Joseph, Thanks for reminding me! Files: cull edge points.3dm (1.9 MB) cull edge points.gh (11.3 KB)

There are several ways to do this. I measured both distance to the edge and distance to the surface to eliminate points outside the edge on the untrimmed surface. [cull edge points_2024Jan7a] cull edge points_2024Jan7a.gh (20.5 KB) You might want to consider alternatives to SubSrf (Isotrim) sin…

also Point In Curve on the XY projected points and boundary curve might work in this particular case [image] cull edge points_Re.gh (88.5 KB)

Here is a simpler variation of the projected point grid that calculates ‘Ex’ (Extent X) and ‘Ey’ (Extent Y) based on the 'PtSep; slider (blue group). [cull edge points_2024Jan7d] cull edge points_2024Jan7d.gh (20.0 KB)

This takes it one step further… All surfaces are internalized, no need for Rhino file. The purple group aligns a plane to the surface. Two copies of the surface are included: Srf (original) (as before) and Srf (skewed), which is arbitrarily rotated on two axes. Switch wires from one to t…

I created a test apparatus (teal group) to generate randomly oriented surfaces, Would be better if they were randomly “wavy” instead of flat but that would likely require more code in the teal group than all the rest of the code that does the work. This was enough to discover some mysterious anoma…

Thanks Joseph, these renditions are great! Actually, I ran into a different issue and was hoping you might have a solution for. I also want to add these geometries (in the same manner) to a few polysurfaces, but the evalsurf is stopping me from doing so. Any ideas how to get the same result as thi…

[image] Brendan : Any ideas how to get the same result as this script but for a polysurface, mesh, or subd? [image] Help Us Help You Grasshopper Asking questions and getting answers is what this forum is all about. Although people are generally very helpful, there a…

Thanks for reminding me again! :man_facepalming: I have three sets of the same geometry here, just trying everything at this point Files: new.3dm (7.4 MB) new.gh (21.7 KB)

Looking to cull points along edge of a subdivided surface

Grasshopper

Joseph_Oster January 7, 2024, 7:15pm 2

3. Attach minimal versions of all the relevant files

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Looking to cull points along edge of a subdivided surface

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