Update Point Renderer in Custom Data Feed

Question

Howdy,

I am banging my head against the wall trying to supply my custom data feed with a picture marker symbol. Nothing I have tried in the model.js file works. I was advised not to go messing with boilerplate stuff like the renderer.js file under /framework/featureserver/src/helpers. Has anyone else done this? If so could you help me understand how to accomplish this task?

John_Hash · Answer

On line 25 of your code, the metadata property you need to use is `renderer`. I would try removing the top-level "renderer" key from your "drawingInfo" object.

let drawingInfo = {
                  symbol: {
                    outline: {
                      color: [255, 230, 1],
                      width: 200,
                      style: "esriSLSSolid",
                      type: "esriSLS"
                    }
                  }
                }

On line 25:

metadata: { idField: "id", name: 'FOOBARDrones', type: 'FeatureCollection', renderer: drawingInfo, maxRecordCount: 1000 },

Hopefully that will fix it. Please let me know the outcome.

cepsgis · Answer

We are using 11.4 of the sdk.

@John_Hash wrote:Hello,

Can you let me know which version of ArcGIS Enterprise SDK you are working with? If you wouldn't mind, could you paste a little sample of marker rendering code you are trying implement? Thanks.

let drones;
      try {
        drones = JSON.parse(body);
      } catch (parseError) {
        console.error('Failed to parse JSON:', parseError);
        self.error = parseError;
        return;
      }
      let drawingInfo = {

renderer: {
                  symbol: {
                    outline: {
                      color: [255, 230, 1],
                      width: 200,
                      style: "esriSLSSolid",
                      type: "esriSLS"
                    }
                  }
                }
              }

self.cachedGeojson = geojson;
      self.error = null;
    });
  }

fetchData(); // run immediately
  setInterval(fetchData, 15000); // rerun every 15 seconds
};

Model.prototype.getData = function (req, callback) {
  if (this.error) {
    callback(this.error);
  } else {
    callback(null, this.cachedGeojson || { type: "FeatureCollection",drawingInfo:drawingInfo, features: [] });
  }
};

module.exports = Model;

John_Hash · Answer

Hello,

Can you let me know which version of ArcGIS Enterprise SDK you are working with? If you wouldn't mind, could you paste a little sample of marker rendering code you are trying implement? Thanks.