Mongo CRS

[Sebastian Rauer]

Hi,

i have a question regarding mongo db crs.

Is it right, that mongo db only support follwing crs: "urn:x-mongodb:crs:strictwinding:EPSG:4326"?

My geodata are in "EPSG:4258". 

How can i insert and query CRS:EPSG:4258?

Best regards,

Sebastian

[Siyuan Zhou]

Hi Sebastian,

Right now, MongoDB supports 2 different Coordinate Reference Systems.

• "urn:ogc:def:crs:OGC:1.3:CRS84" or "EPSG:4326", used by GPS and the default CRS of GeoJSON in MongoDB.
• "urn:x-mongodb:crs:strictwinding:EPSG:4326", the CRS used for the Big Polygon feature. The data range is the same as "EPSG:4326", but the winding order of a polygon is defined strictly.

For any other coordinate reference systems, the application has to convert the between coordinate reference systems.

Thanks,

Siyuan

[Sebastian Rauer]

Hi Siyuan,

tanks for your reply. I convert the coordinates by self. 

Thanks alot,

Sebastian