A point in the grid is null. Fitting operation aborted (Again)

[Joseph_Oster]

Your ‘Bounding Box’ curve appears to be incorrect.

HELP! Surface from Grid Trouble! - null point in grid

A similar thread three days ago: [Site_L_2020Sep18a] Site_L_2020Sep18a.gh (56.2 KB) P.S. I’m not sure why but the Delaunay mesh is quite bad in this case, filling in the “bay” with a phony surface?

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)

Surface from points not working properly

Combine Data replaces null points with original points. [SURFACE FROM POINTS_2020Nov18a] [SURFACE FROM POINTS_2020Nov18a2] SURFACE FROM POINTS_2020Nov18a.gh (5.0 MB) (why so big? oh yeah, terrain contours) P.S. At higher resolution, note 400 on the slider: [SURFACE FROM POINTS_2020Nov18a3] P.P.S. Slider at 500 resolution with terrain lines displayed (baked, render mode, Sun/shadows): [SURFACE FROM POINTS_2020Nov18a5]

Used code from the first link above with your contours:

Topo_2024Feb1a.gh (4.8 MB)