Question

I am using a specific map with different layers and elements on it. The map is created using arcGis and it creates an <svg></svg> label with all the elements inside (building, roads, etc.).

My question is, could I iterate through the different objects of the map inside the frame with javascript/dojo?

The main idea is to change the color of a building or a square inside the map client-side. Any idea?

HTML:

Javascript:

basemap = new esri.layers.ArcGISTiledMapServiceLayer("http://...", {});
map.addLayer(basemap);

Many thanks.

Answer 1

I have managed to create an empty query that can iterate through all the elements, something like this:

      //initialize query task
      queryTask = new esri.tasks.QueryTask("https://...");

      //initialize query
      query = new esri.tasks.Query();
      query.returnGeometry = true;
      query.outFields = ["SPAT_NAME"];
      query.where = "1=1";

      //execute query
      queryTask.execute(query,function(results){
        console.log(results);
        console.log(elements);
        for (var i=0, il=results.features.length; i<il; i++) {
          var featureAttributes = results.features[i].attributes;
          //do stuff
          }
        }
      });