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OSGeo / PROJ-data

Repository for proj datum grids (for use by PROJ 7 or later)
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Clipped no_kv_arcgp-2006-sk.tif #90

Closed himsve closed 1 year ago

himsve commented 1 year ago

The geoid raster no_kv_arcgp-2006-sk.tif at Svalbard is clipped to fit the EPSG extent 4058 (Arctic - 81°10'N to 76°10'N, 4°W to 38°E), approximately.

The vertical transformations EPSG:10107 and EPSG:10106 should not be trigged outside the 4058-area.

Link to extent at epsg.io: EPSG:4058.

I remember @jjimenezshaw had an issue about the original geoid model at Svalbard: https://github.com/OSGeo/PROJ-data/pull/86#issuecomment-1249272054

rouault commented 1 year ago

I remember @jjimenezshaw had an issue about the original geoid model at Svalbard:

is there any real issue in having the file being larger than the advertized EPSG extent ?

If this clip is necessary, the "regenerate index" commit should be dropped as it conflicts with more recent changes. I'll take care of regenerating it

jjimenezshaw commented 1 year ago

My "problem" was that it was not shown in cdn.proj.org map. @rouault already fixed that. In addition to that I was just a bit surprised about the difference in size @himsve already explained it in https://github.com/OSGeo/PROJ-data/pull/86#issuecomment-1253407140