{"action":"created","issue":{"url":"https://api.github.com/repos/geopandas/geopandas/issues/412","repository_url":"https://api.github.com/repos/geopandas/geopandas","labels_url":"https://api.github.com/repos/geopandas/geopandas/issues/412/labels{/name}","comments_url":"https://api.github.com/repos/geopandas/geopandas/issues/412/comments","events_url":"https://api.github.com/repos/geopandas/geopandas/issues/412/events","html_url":"https://github.com/geopandas/geopandas/issues/412","id":211864619,"number":412,"title":"to_json should either include CRS to conver to wgs84","user":{"login":"wassname","id":1103714,"avatar_url":"https://avatars2.githubusercontent.com/u/1103714?v=3","gravatar_id":"","url":"https://api.github.com/users/wassname","html_url":"https://github.com/wassname","followers_url":"https://api.github.com/users/wassname/followers","following_url":"https://api.github.com/users/wassname/following{/other_user}","gists_url":"https://api.github.com/users/wassname/gists{/gist_id}","starred_url":"https://api.github.com/users/wassname/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wassname/subscriptions","organizations_url":"https://api.github.com/users/wassname/orgs","repos_url":"https://api.github.com/users/wassname/repos","events_url":"https://api.github.com/users/wassname/events{/privacy}","received_events_url":"https://api.github.com/users/wassname/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2017-03-04T08:03:46Z","updated_at":"2017-03-05T01:33:42Z","closed_at":null,"body":"Geopandas dataframes can be in any CRS, but when exported to geojson the CRS is not exported. So we should either export the CRS or convert to the default (wgs84 according the geojson spec).\r\n\r\nWhat do you think?"},"comment":{"url":"https://api.github.com/repos/geopandas/geopandas/issues/comments/284198140","html_url":"https://github.com/geopandas/geopandas/issues/412#issuecomment-284198140","issue_url":"https://api.github.com/repos/geopandas/geopandas/issues/412","id":284198140,"user":{"login":"wassname","id":1103714,"avatar_url":"https://avatars2.githubusercontent.com/u/1103714?v=3","gravatar_id":"","url":"https://api.github.com/users/wassname","html_url":"https://github.com/wassname","followers_url":"https://api.github.com/users/wassname/followers","following_url":"https://api.github.com/users/wassname/following{/other_user}","gists_url":"https://api.github.com/users/wassname/gists{/gist_id}","starred_url":"https://api.github.com/users/wassname/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wassname/subscriptions","organizations_url":"https://api.github.com/users/wassname/orgs","repos_url":"https://api.github.com/users/wassname/repos","events_url":"https://api.github.com/users/wassname/events{/privacy}","received_events_url":"https://api.github.com/users/wassname/received_events","type":"User","site_admin":false},"created_at":"2017-03-05T01:33:42Z","updated_at":"2017-03-05T01:33:42Z","body":"I agree it's hard to convert from a pyproj projections to either a link or named CRS like in the geojson spec. The other approach is easy and standards complaint.\r\n\r\nIf you look at the [2016 geojson spec](https://tools.ietf.org/rfc/rfc7946.txt )\r\n\r\n> Specification of coordinate reference systems has been removed,\r\n>       i.e., the \"crs\" member of [GJ2008] is no longer used.\r\n\r\nThey recommend not using a CRS (doesn't seem very future proof when we upgrade from wgs84 as the world standard), which is easy for us to implement. If there is a CRS defined we use to_crs(epsg=4326) when exporting. And when importing from geojson we use epsg=4326 as the default. I can make a PR for this if you like?"}}
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