#CoordinateSystem
The #OME-Zarr RFC-5 proposal allows you to transform multiple images into the same coordinateSystem. Trying this out with napari at github.com/will-moore/n.... Cool that you can offset T-dimension as well as XYZ!
October 20, 2025 at 1:00 PM
This reconstruction also gave me the camera position within a kilometer or so. If anyone wants to try to derive the orbit from those, they are available here: pastebin.com/raw/rycxNJnK

@planet4589.bsky.social @marcolangbroek.bsky.social @coastal8049.bsky.social this could be a fun job for you ;)
https://pastebin.com/raw/rycxNJnK
# CoordinateSystem: GEOGCS["GCS_Moon_2000",DATUM["D_Moon_2000",SPHEROID["Moon_2000_IAU_IAG",1737400,0,AUTHORITY["ESRI","107903"]],AUTHORITY["ESRI","106903"]],PRIMEM["Reference_Meridian",0,AUTHORITY["E...
pastebin.com
February 26, 2025 at 11:33 PM
There could be another lunar encounter in April of 2026 and after that things get really unstable. We're now in a very chaotic realm where CHANDRAYAAN 3 service module could end up in solar orbit or impacting the Moon or even Earth.

See alt text for state vector.🛑
November 14, 2025 at 3:07 AM
Political Coordinate System
August 17, 2026 at 6:21 PM
today im working out the minimal implementation for a CoordinateSystem class to do arbitrary line of sight for standard roguelike tiles, hex grids, and then hoping it will work for less intuitive geometry like in hyperrogue
July 29, 2026 at 9:12 PM
Looking for Python library for reading/writing Geosoft ply files
I need to import Geosoft polygon files into QGIS. Each ply file exported by the program will include a description of the coordinate system in a header section. Here is an example: /#CoordinateSystem="NAD83(CSRS) / UTM zone 8N" /#Datum=NAD83(CSRS),6378137,0.0818191910428158,0 /#Projection="Transverse Mercator",0,-135,0.9996,500000,0 /#Units=m,1 /#LocalDatum="NAD83(CSRS) to WGS 84 (1)",0,0,0,0,0,0,0 All of the good stuff is in the first line, and although it's easy to write some code to create an EPSG code and then QGIS reference system for any particular datum, it would be a lot of work to create something generic. On spatialreference.org they list 7726 EPSG codes! For example, here is my code that works for WGS84, once the zone has been parsed. def create_crs(self)->QgsCoordinateReferenceSystem|None: """Create a new WGS84 coordinate system and return. """ match self.hemisphere: case 'N': return QgsCoordinateReferenceSystem(f"EPSG:326{self.zone:02d}") case 'S': return QgsCoordinateReferenceSystem(f"EPSG:327{self.zone:02d}") case _: QMessageBox.information(None, 'CRS', "Undefined coordinate system. Using project settings.", QMessageBox.Ok) return self.project.crs() My question is, can anyone point me in a more generic direction? Is there anything in GDAL that I can use as a starting point? I confess that I am ignorant of the GDAL code. thanks
gis.stackexchange.com
February 24, 2026 at 11:06 PM