topic Switching between mercator/polar projections in ArcGIS API for Flex Questions https://community.esri.com/t5/arcgis-api-for-flex-questions/switching-between-mercator-polar-projections/m-p/626212#M13929 <HTML><HEAD></HEAD><BODY><SPAN>Hello, </SPAN><BR /><BR /><SPAN>I posted a few days ago regarding displaying maps in polar (vs mercator) and how to go about it. I finally got that working by setting the map's wkid to a polar projection and setting my layer to be dynamic. It's really slow but it works.</SPAN><BR /><BR /><SPAN>Now I'm struggling with how to switch between mercator and polar projections within the same application. I am envisioning a toggle switch - similar to the Mapswitcherwidget - that will allow users to switch between polar and mercator on a whim. Is this possible? I've read several places that ESRI does not support changing projections, but I was wondering if any of you have tried it and successfully gotten the projections to switch. </SPAN><BR /><BR /><SPAN>I'm also looking to see if creating my own base maps in polar would allow switching. For example, if I had two maps in mercator and two maps in polar, and all the layers were of type "tiled", could the map change its projection on-the-fly to suit these layers?</SPAN><BR /><BR /><SPAN>Any help would be greatly appreciated. Thanks!</SPAN></BODY></HTML> Tue, 10 Jul 2012 16:51:41 GMT HannahLuedeke 2012-07-10T16:51:41Z Switching between mercator/polar projections https://community.esri.com/t5/arcgis-api-for-flex-questions/switching-between-mercator-polar-projections/m-p/626212#M13929 <HTML><HEAD></HEAD><BODY><SPAN>Hello, </SPAN><BR /><BR /><SPAN>I posted a few days ago regarding displaying maps in polar (vs mercator) and how to go about it. I finally got that working by setting the map's wkid to a polar projection and setting my layer to be dynamic. It's really slow but it works.</SPAN><BR /><BR /><SPAN>Now I'm struggling with how to switch between mercator and polar projections within the same application. I am envisioning a toggle switch - similar to the Mapswitcherwidget - that will allow users to switch between polar and mercator on a whim. Is this possible? I've read several places that ESRI does not support changing projections, but I was wondering if any of you have tried it and successfully gotten the projections to switch. </SPAN><BR /><BR /><SPAN>I'm also looking to see if creating my own base maps in polar would allow switching. For example, if I had two maps in mercator and two maps in polar, and all the layers were of type "tiled", could the map change its projection on-the-fly to suit these layers?</SPAN><BR /><BR /><SPAN>Any help would be greatly appreciated. Thanks!</SPAN></BODY></HTML> Tue, 10 Jul 2012 16:51:41 GMT https://community.esri.com/t5/arcgis-api-for-flex-questions/switching-between-mercator-polar-projections/m-p/626212#M13929 HannahLuedeke 2012-07-10T16:51:41Z Re: Switching between mercator/polar projections https://community.esri.com/t5/arcgis-api-for-flex-questions/switching-between-mercator-polar-projections/m-p/626213#M13930 <HTML><HEAD></HEAD><BODY><SPAN>One way would be to create two flex apps with the same data, just one in polar and one in mercator. </SPAN><BR /><BR /><SPAN>Then you could use Robert's Link widget to switch between the two maps.</SPAN><BR /><BR /><SPAN>It would appear as if the map just switched to the other cooredinate system.&nbsp; Of course, it would lose the current zoom/extent and open the new map to the defaults.</SPAN><BR /><BR /><SPAN>R_</SPAN></BODY></HTML> Tue, 10 Jul 2012 22:44:52 GMT https://community.esri.com/t5/arcgis-api-for-flex-questions/switching-between-mercator-polar-projections/m-p/626213#M13930 RhettZufelt 2012-07-10T22:44:52Z