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After a conversation with @dshean I looked into saving a custom WKT within a geotiff, I was surprised to not come across any solutions today 😳, so I sent a message to gdal-dev, copied below. cc @ShashankBice
I’ve looked around for an answer to this one to no avail and would appreciate any insight from those more familiar with the GeoTiff format. I’d like to be able to store a custom WKT inside GeoTiff metadata rather than in an external PAM file. I’ve seen some solutions to add custom entries in the PROJ database to accomplish this, but is that really the only way?
Here is a motivating example, using a WKT that specifies a specific WGS84 realization for a given UTM zone:
After a conversation with @dshean I looked into saving a custom WKT within a geotiff, I was surprised to not come across any solutions today 😳, so I sent a message to gdal-dev, copied below. cc @ShashankBice
https://lists.osgeo.org/pipermail/gdal-dev/2025-January/060026.html
I’ve looked around for an answer to this one to no avail and would appreciate any insight from those more familiar with the GeoTiff format. I’d like to be able to store a custom WKT inside GeoTiff metadata rather than in an external PAM file. I’ve seen some solutions to add custom entries in the PROJ database to accomplish this, but is that really the only way?
Here is a motivating example, using a WKT that specifies a specific WGS84 realization for a given UTM zone:
Here is the wkt, I’d like for it not to end up in a sidecar file where I might loose it, but embedded in the GTiff:
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