topic Best practices for using layer definition queries for display/map rendering in ArcGIS Enterprise Portal Questions https://community.esri.com/t5/arcgis-enterprise-portal-questions/best-practices-for-using-layer-definition-queries/m-p/711145#M9601 <HTML><HEAD></HEAD><BODY><SPAN>Re-post from </SPAN><A href="http://forums.arcgis.com/threads/53327-Best-practices-for-using-layer-definition-queries-for-display-map-rendering">http://forums.arcgis.com/threads/53327-Best-practices-for-using-layer-definition-queries-for-display-map-rendering</A><SPAN> - Think I had it in the wrong forum.</SPAN><BR /><BR /><BR /><SPAN>Hi Guys,</SPAN><BR /><BR /><SPAN>I am busy setting up my layers for a typical vector map display, but I have a question around the use of definition queries instead of using split up layers.</SPAN><BR /><BR /><SPAN>I have a road network layer that contains a type field and obviously different types are displayed on different zoom scales. Now I have the option of using the definition query to load the roads of a specific type from the dataset, but the implication of doing this, is that on each different zoom scale, Arc requires all road types, which does take a while to render.</SPAN><BR /><BR /><SPAN>My question is would it be advisable to rather split out the layers into the different road types? The problem with this is that I won�??t be able to make use of the "join/merge" functionality with the Symbol Level?</SPAN><BR /><SPAN>or</SPAN><BR /><SPAN>Is there a way to load the full dataset once in memory, then use the same data on the different zoom scales (almost like a layer memory cache) thus limiting the cycles needed to query the raw vector data?</SPAN><BR /><BR /><SPAN>Thanks,</SPAN><BR /><BR /><SPAN>Pieter</SPAN></BODY></HTML> Mon, 16 Apr 2012 18:59:38 GMT PieterCoetzer 2012-04-16T18:59:38Z Best practices for using layer definition queries for display/map rendering https://community.esri.com/t5/arcgis-enterprise-portal-questions/best-practices-for-using-layer-definition-queries/m-p/711145#M9601 <HTML><HEAD></HEAD><BODY><SPAN>Re-post from </SPAN><A href="http://forums.arcgis.com/threads/53327-Best-practices-for-using-layer-definition-queries-for-display-map-rendering">http://forums.arcgis.com/threads/53327-Best-practices-for-using-layer-definition-queries-for-display-map-rendering</A><SPAN> - Think I had it in the wrong forum.</SPAN><BR /><BR /><BR /><SPAN>Hi Guys,</SPAN><BR /><BR /><SPAN>I am busy setting up my layers for a typical vector map display, but I have a question around the use of definition queries instead of using split up layers.</SPAN><BR /><BR /><SPAN>I have a road network layer that contains a type field and obviously different types are displayed on different zoom scales. Now I have the option of using the definition query to load the roads of a specific type from the dataset, but the implication of doing this, is that on each different zoom scale, Arc requires all road types, which does take a while to render.</SPAN><BR /><BR /><SPAN>My question is would it be advisable to rather split out the layers into the different road types? The problem with this is that I won�??t be able to make use of the "join/merge" functionality with the Symbol Level?</SPAN><BR /><SPAN>or</SPAN><BR /><SPAN>Is there a way to load the full dataset once in memory, then use the same data on the different zoom scales (almost like a layer memory cache) thus limiting the cycles needed to query the raw vector data?</SPAN><BR /><BR /><SPAN>Thanks,</SPAN><BR /><BR /><SPAN>Pieter</SPAN></BODY></HTML> Mon, 16 Apr 2012 18:59:38 GMT https://community.esri.com/t5/arcgis-enterprise-portal-questions/best-practices-for-using-layer-definition-queries/m-p/711145#M9601 PieterCoetzer 2012-04-16T18:59:38Z