https://community.esri.com/t5/arcgis-api-for-python-questions/defining-an-area-of-interest-with-arcgis-api-for/m-p/1036884#M5732 <P>Xander explains it here&nbsp;<A href="https://community.esri.com/t5/3d-mapping-questions/spatialreference/td-p/800608" target="_blank">spatialReference - Esri Community</A></P><P>and in the documentation -&nbsp;<A href="https://developers.arcgis.com/web-map-specification/objects/spatialReference/" target="_blank">spatialReference | ArcGIS for Developers</A></P> Mon, 15 Mar 2021 21:27:35 GMT DavidPike 2021-03-15T21:27:35Z https://community.esri.com/t5/arcgis-api-for-python-questions/defining-an-area-of-interest-with-arcgis-api-for/m-p/1036880#M5731 <P>Hello, I need to define an area of interest of a raster image and found the following code, but I dont understand it. Whats&nbsp; the purpose of "latestWkid" and "wkid" and why are they always "4326"</P><P>&nbsp;</P><P><STRONG>City_areaofinterest = {'spatialReference': {'latestWkid': 4326, 'wkid': 4326}, 'type': 'extent', </STRONG><BR /><STRONG>'xmax': 16.57975, 'xmin': 16.17187, 'ymax': 48.32337, 'ymin': 48.10101}</STRONG></P><P><STRONG>arcgis.env.analysis_extent = {"xmin":16.17187,"ymin":48.10101,"xmax":16.57975,"ymax":48.32337,</STRONG><BR /><STRONG>"spatialReference":{"wkid":4326,"latestWkid":4326}}</STRONG></P><P>&nbsp;</P><P>Thx in advance!</P> Mon, 15 Mar 2021 21:21:40 GMT https://community.esri.com/t5/arcgis-api-for-python-questions/defining-an-area-of-interest-with-arcgis-api-for/m-p/1036880#M5731 barrylim 2021-03-15T21:21:40Z https://community.esri.com/t5/arcgis-api-for-python-questions/defining-an-area-of-interest-with-arcgis-api-for/m-p/1036884#M5732 <P>Xander explains it here&nbsp;<A href="https://community.esri.com/t5/3d-mapping-questions/spatialreference/td-p/800608" target="_blank">spatialReference - Esri Community</A></P><P>and in the documentation -&nbsp;<A href="https://developers.arcgis.com/web-map-specification/objects/spatialReference/" target="_blank">spatialReference | ArcGIS for Developers</A></P> Mon, 15 Mar 2021 21:27:35 GMT https://community.esri.com/t5/arcgis-api-for-python-questions/defining-an-area-of-interest-with-arcgis-api-for/m-p/1036884#M5732 DavidPike 2021-03-15T21:27:35Z