VRT warping method causing spatial inconsistencies.

manaakiwhenua / raster2dggs

DGGS indexer for raster data

https://pypi.org/project/raster2dggs/

GNU Lesser General Public License v3.0

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VRT warping method causing spatial inconsistencies. #14

Open ChocopieKewpie opened 1 year ago

ChocopieKewpie commented 1 year ago

Warping raster instead of raster points will cause slight shifts in indexed data. Recommended to warp points instead of the input raster.

ChocopieKewpie commented 1 year ago

Also raster resampling should default to bilinear as per findings: Li, Mingke & Mcgrath, Heather & Stefanakis, Emmanuel. (2021). Integration of heterogeneous terrain data into Discrete Global Grid Systems. Cartography and Geographic Information Science. 48. 10.1080/15230406.2021.1966648.