Dynamically limiting the extent of an ArcGISDynamicMapServerLayer

SteveBurdette1 — Thu, 13 Apr 2017 19:52:24 GMT

We have a few ArcGISDynamicMapServerLayers that are querying several hundred thousand lines. We can dynamically limit the results that the layer is querying by using the layerDefinitions, like this:

var layerDynamic = new ArcGISDynamicMapServiceLayer(myUrl);

var layerDefinitions = [];

layerDefinitions[0] = "City = 'MyCity'";

layerDynamic.setLayerDefinitions(layerDefinitions);

This works great and really improves performance. However, if I want to limit the layer by a given Extent, can I do that? For example, if a user zooms to a particular county, then I want to limit the ArcGISDynamicMapServiceLayer by that county's polygon shape extent.

topic Dynamically limiting the extent of an ArcGISDynamicMapServerLayer in ArcGIS JavaScript Maps SDK Questions

Dynamically limiting the extent of an ArcGISDynamicMapServerLayer