alessandrofelder
commented
3 years ago I, unfortunately, didn't take good notes when I fought an afternoon with this 🤦 . I remember kind of getting the GRASS script to work on my Windows machine using an older version of GRASS, i.e. 7.6 from my emails.
On the GRASS side, Jamie and I have managed to get generate_contour.sh to “work” with the “old” version of GRASS (7.6), but the contours don’t seem to be closed – see e.g. the 500 m contour result for GEBCO 2020 data in ~ our region of interest [-125 W -119 E 44 S 50 N]
but even so the contours aren't closed! The solution that we found with gdal_contour is preferable to this approach, IMO.
TODO document various issues and approaches that didn't work here.