I’m trying to model a terrain that doesn’t have a retangular shape and Grasshopper is creating undesired mesh conections in the corners. I’m using a larger outer rectangle as the curve to where the mesh will be generated from within as it doesn’t work with the red curve. [image] basically what I …

I used the perimeter curve from the R6 .3dm file and culled faces where the Average point of the face vertices was outside of that curve. Both the curve and points are projected to World XY before testing with InCurve. That algorithm could easily be modified so that if any of the face vertices are…

Your curves are not internalized. [missing]

Which curve should I internalize? I tried each one separately and then both but it didn’t worked here’s the file if you need to look at it [image] 3D terrain.3dm 1 file sent via WeTransfer, the simplest way to send your files around the world

The orange params indicate missing geometry, including the Pt (Points). Your 34 MByte file is R7 and so cannot be opened in R6, sorry.

How to create a non-retangular terrain mesh

Grasshopper

danielchequer2000 (Danielchequer2000) February 26, 2021, 12:11am 6

My bad, now I see what you mean. Here’s the file with internalized data:

Terrain.gh (128.5 KB)

Topography Terrain generation error

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How to create a non-retangular terrain mesh

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