topic Spatial reference impact on performance in ArcGIS REST APIs and Services Questions https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418609#M2006 <HTML><HEAD></HEAD><BODY><SPAN>Scenario Description:</SPAN><BR /><SPAN>1) Source feature layers' S.R. = 4326</SPAN><BR /><SPAN>2) In the mxd, set the frame's S.R. as 102100.</SPAN><BR /><SPAN>3) Load the source feature layers.</SPAN><BR /><SPAN>4) Publish the mxd as a map service.</SPAN><BR /><SPAN>5) Add the layers in the published map service as dynamic layers, which overlay on ESRI's basemaps.</SPAN><BR /><SPAN>Qestion:&nbsp; Will this impact the performance?</SPAN></BODY></HTML> Wed, 25 Jan 2012 16:08:56 GMT ShaningYu 2012-01-25T16:08:56Z Spatial reference impact on performance https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418609#M2006 <HTML><HEAD></HEAD><BODY><SPAN>Scenario Description:</SPAN><BR /><SPAN>1) Source feature layers' S.R. = 4326</SPAN><BR /><SPAN>2) In the mxd, set the frame's S.R. as 102100.</SPAN><BR /><SPAN>3) Load the source feature layers.</SPAN><BR /><SPAN>4) Publish the mxd as a map service.</SPAN><BR /><SPAN>5) Add the layers in the published map service as dynamic layers, which overlay on ESRI's basemaps.</SPAN><BR /><SPAN>Qestion:&nbsp; Will this impact the performance?</SPAN></BODY></HTML> Wed, 25 Jan 2012 16:08:56 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418609#M2006 ShaningYu 2012-01-25T16:08:56Z Re: Spatial reference impact on performance https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418610#M2007 <HTML><HEAD></HEAD><BODY><SPAN>Yes.</SPAN><BR /><SPAN>Depending on number of features and the complexity of features, you may see noticeable difference in the performance. </SPAN><BR /><SPAN>In your case, every export request will project features on-the-fly which is expensive operation.</SPAN><BR /><BR /><SPAN>If you can, we recommend to project your FeatureClass to the destination SRS (i.e. 100210) and publish that as a mapservice.</SPAN></BODY></HTML> Thu, 26 Jan 2012 14:35:21 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418610#M2007 TanuHoque 2012-01-26T14:35:21Z Re: Spatial reference impact on performance https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418611#M2008 <HTML><HEAD></HEAD><BODY><SPAN>another factor that I forgot to mention is the number of simultaneous users using your service.</SPAN></BODY></HTML> Fri, 27 Jan 2012 06:30:12 GMT https://community.esri.com/t5/arcgis-rest-apis-and-services-questions/spatial-reference-impact-on-performance/m-p/418611#M2008 TanuHoque 2012-01-27T06:30:12Z