https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/basemap-with-different-spatial-reference/m-p/1032222#M71904 <P>We have 2 different cached/tiled ArcGIS for Server map services, but with different spatial references. One is with the common Web Mercator Aux. spatial reference, the other is an Australia-specific one.</P><P>Is it possible to use these 2 together as basemaps in the same web application? I would have the Web Mercator Aux (WKID&nbsp;<SPAN>102100&nbsp; or 3857)</SPAN> as the "default" i.e. added to the map first, and the Australia-specific cached map service as the "secondary", so it would project-on-the-fly.</P><P>I am using ArcGIS JavaScript API 4.18.</P><P>I will be using the default basemap gallery widget, but can implement our own, as I understand the out-of-box basemap gallery widget won't work with <A href="https://community.esri.com/t5/arcgis-enterprise-portal/allow-basemaps-of-different-spatial-references-in-basemap/m-p/328893#M4494" target="_self">different spatial references</A>.</P> Wed, 03 Mar 2021 00:05:40 GMT HenryKo2 2021-03-03T00:05:40Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/basemap-with-different-spatial-reference/m-p/1032222#M71904 <P>We have 2 different cached/tiled ArcGIS for Server map services, but with different spatial references. One is with the common Web Mercator Aux. spatial reference, the other is an Australia-specific one.</P><P>Is it possible to use these 2 together as basemaps in the same web application? I would have the Web Mercator Aux (WKID&nbsp;<SPAN>102100&nbsp; or 3857)</SPAN> as the "default" i.e. added to the map first, and the Australia-specific cached map service as the "secondary", so it would project-on-the-fly.</P><P>I am using ArcGIS JavaScript API 4.18.</P><P>I will be using the default basemap gallery widget, but can implement our own, as I understand the out-of-box basemap gallery widget won't work with <A href="https://community.esri.com/t5/arcgis-enterprise-portal/allow-basemaps-of-different-spatial-references-in-basemap/m-p/328893#M4494" target="_self">different spatial references</A>.</P> Wed, 03 Mar 2021 00:05:40 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/basemap-with-different-spatial-reference/m-p/1032222#M71904 HenryKo2 2021-03-03T00:05:40Z