Topography Terrain generation error

[Joseph_Oster]

Delaunay Mesh - remove unwanted elements

Hello, I am doing a Delaunay triangulation out of app. 4000 points. At the boundaries, I get some unwanted very thin and long triangles. Is there an easy and efficient way to get rid of them? I already tried to trim but without satisfying results. Additionally, I tried to compute the angle of each element and delete if they surpass a certain value, but this seemed to be rather complicated. Is there e.g. an easy way to delete triangles, which are either too thin or too long? Best regards, Jak…

How to create a non-retangular terrain mesh

My bad, now I see what you mean. Here’s the file with internalized data: Terrain.gh (128.5 KB)

SrfGrid wont activate from meshray, Trying to create srf from contours with bounding box

I made three changes: Used the bottom face of a Bounding Box around the mesh. Used Pick’n’Choose to replace nulls with base points. Replaced SrfGrid because the ‘I’ input was not initialized, causing the “1. Input parameter I failed to collect data” error. [001_landskap_2020Sep15a] 001_landskap_2020Sep15a.gh (150.6 KB)

Create SrfGrid from contours using GH

Just changing the slider value from 400 to 390 allows the code to work. Perhaps because your geometry is so very far away from the origin? [Landcape from contours_2020Nov29a] The mesh is invalid but can be fixed by culling duplicate points first (9.6 minutes! red group) [Landcape from contours_2020Nov29a2] Landcape from contours_2020Nov29a.gh (4.6 MB) (Why is that small GH model 4.6 MB?!)