https://community.esri.com/t5/arcgis-pro-questions/help-with-correcting-proj-coord-sys-of-shapefile/m-p/1143001#M51315 <P>I'm having a problem with a number of polygon-based feature layers which a created simply by uploading their shapefiles in my ArcGIS Developers Dashboard.&nbsp; The result is that when one or more polygons are selected on the map in Pro and I use the tool to export them to a GeoJSON file, the resultant file does not have the coordinates in lat-long format, but in meters corresponding to the projected coord system (which is 'WGS 1984 Web Mercator (auxiliary spere)' for these layers).&nbsp; Hence, the geometry in the geojson file does not appear properly when loaded in Google Earth/Maps or caltopo.&nbsp; &nbsp;While the work-around is to select to convert to WGS 1984 in Pro's JSON tool, the problem is that such an option won't be available to front-end users using the web app (created with Exp Builder).</P><P>I was able to recreate this problem by adding the feature layer as the only layer to a simple map in Pro. FYI, I notice this problem does NOT occur when I create a simple polygon layer in&nbsp;ArcGIS Developers Dashboard and provide as a feature layer (as opposed to importation of a shapefile).&nbsp; The properties of such a feature layer in Pro show that only the GCS is defined but not the PCS, which may explain when exportation of selected polys to geojson works fine,</P> Fri, 11 Feb 2022 11:13:59 GMT JohnSasso 2022-02-11T11:13:59Z https://community.esri.com/t5/arcgis-pro-questions/help-with-correcting-proj-coord-sys-of-shapefile/m-p/1143001#M51315 <P>I'm having a problem with a number of polygon-based feature layers which a created simply by uploading their shapefiles in my ArcGIS Developers Dashboard.&nbsp; The result is that when one or more polygons are selected on the map in Pro and I use the tool to export them to a GeoJSON file, the resultant file does not have the coordinates in lat-long format, but in meters corresponding to the projected coord system (which is 'WGS 1984 Web Mercator (auxiliary spere)' for these layers).&nbsp; Hence, the geometry in the geojson file does not appear properly when loaded in Google Earth/Maps or caltopo.&nbsp; &nbsp;While the work-around is to select to convert to WGS 1984 in Pro's JSON tool, the problem is that such an option won't be available to front-end users using the web app (created with Exp Builder).</P><P>I was able to recreate this problem by adding the feature layer as the only layer to a simple map in Pro. FYI, I notice this problem does NOT occur when I create a simple polygon layer in&nbsp;ArcGIS Developers Dashboard and provide as a feature layer (as opposed to importation of a shapefile).&nbsp; The properties of such a feature layer in Pro show that only the GCS is defined but not the PCS, which may explain when exportation of selected polys to geojson works fine,</P> Fri, 11 Feb 2022 11:13:59 GMT https://community.esri.com/t5/arcgis-pro-questions/help-with-correcting-proj-coord-sys-of-shapefile/m-p/1143001#M51315 JohnSasso 2022-02-11T11:13:59Z