PROJ-data
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OSGeo
Repository for proj datum grids (for use by PROJ 7 or later)
This is basically a revival of https://github.com/OSGeo/proj-datumgrid/pull/97 (after having been in contact with @zsiki and obtaining his permission to do so). Things that have changed: - Both grids have been...
naptrans2018.gtx has alternative grid - nl_nsgi_naptrans2018.tif which is missing from ProjData cdn
PROJ version: 9.3 The following WKT has the grid shift: `naptrans2018.gtx`. The WKT failed to load because its alternative grid `nl_nsgi_naptrans2018.tif` doesn't exist in ProjData cdn. **Is alternative grids ,in...
In order to account for the missing Und_min1x1_egm2008_isw=82_WGS84_TideFree.gz file in the CDN, we need to add a grid_alternative entry to point to the 1' geotiff file. `('Und_min1x1_egm2008_isw=82_WGS84_TideFree.gz','us_nga_egm2008_1.tif','egm08_1.gtx','GTiff','geoid_like',0,NULL,'https://cdn.proj.org/us_nga_egm2008_1.tif',1,1,NULL)` 1' file can...
I noticed that there are some JSON files available to transform between Finnish vertical coordinate reference systems. fi_nls_n43_n60.json: N43 height -> N60 height fi_nls_n60_n2000.json: N60 height -> N2000 height On...
https://webapp.geod.nrcan.gc.ca/geod/data-donnees/geoid.php?locale=en there are two version nad83(CSRS) and ITRF .byn format https://webapp.csrs-scrs.nrcan-rncan.gc.ca/geod/process/download-helper.php?file_id=GSD95n83 https://webapp.csrs-scrs.nrcan-rncan.gc.ca/geod/process/download-helper.php?file_id=GSD95 Attached is the ITRF .byn downloaded from nrcan Additionally, if of use, an exported geotiff created using Qgis....
As luck would have it, the Danish geodetic authority (my employer) has changed its name from SDFE to SDFI. The question now is how to handle that? We've got a...
Should there be STAC Catalog and STAC items in this repo for the data?
[STAC Spec license section](https://github.com/radiantearth/stac-spec/blob/master/item-spec/common-metadata.md#licensing) states that datasets that do not have licenses in https://spdx.org/licenses/ get listed as `proprietary`. Should the README.DATA be changed to prefer licenses in that list? I...
From below email, the grids at http://a100.gov.bc.ca/pub/mascotw/protected/convert.html can be used under the OGL-BC license ( https://www2.gov.bc.ca/gov/content/data/open-data/open-government-licence-bc ) ``` From: "Nicholson, Bob FLNR:EX" Subject: RE: Grid shift files Date: Tue, 17...
Email just sent to [email protected] """ Hello, The latest release of the EPSG v10.008 dataset includes a number of transformations between many vertical CRS and EVRF2019, that involve using grids....