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3 votes

Obtaining list of all EPSG code for a single location on map

Below is a very basic map interface that uses folium, streamlit and streamlit-folium to grab the lat, lon coordinates from mouse clicks to query the proj database as per @snowman2's answer: ...
user2856's user avatar
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3 votes

Obtaining list of all EPSG code for a single location on map

https://gis.stackexchange.com/a/376874/144357 In pyproj 3, you can query the PROJ database for CRS in a specific location: https://pyproj4.github.io/pyproj/latest/api/database.html#pyproj-database-...
snowman2's user avatar
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1 vote

QGIS UK 1940s military Cassini grid projection

The wikipedia page: https://en.wikipedia.org/wiki/Cassini_Grid gives a reference to a conversion method: J. Penny, "Straight to the point right on time", Regional Historian, vol. 5, pp. 11–...
Spacedman's user avatar
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1 vote

Projection with transformation returns unexpected results using GeoPandas compared to ArcPy

As Vince mentioned, this is a classic shift between NAD83 and WGS84. One or the other is doing either no geographic/datum transformation or a 'null' transformation (actually a null method, or ...
mkennedy's user avatar
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