topic Re: Graphics not being updated on the map in ArcGIS JavaScript Maps SDK Questions

Graphics not being updated on the map

Aeseir — Fri, 03 Jun 2022 08:30:16 GMT

I am trying to add and display graphics to a map post load.

My code is able to add it to the graphicslayer, and it advises me that it has added it.

Yet it doesn't show it on the map.

I've just spent over a day on documentation and i cannot figure it out.

watchUtils.on(this.graphicsLayer, "graphics", "change", () => {console.log('Graphics added!');}); let polygon = { type: "polygon", // autocasts as Polygon rings: this.fromLATLONGtoXY(bigPolygon), }; const simSymbol = { type: "simple-fill", color: [138, 43, 226, 0.5], style: "solid", outline: { color: "blue", width: 1 } } let graphic = new Graphic({ geometry: polygon as Polygon, symbol: simSymbol }); this.graphicsLayer.add(graphic);

After running the function i get a "Graphics added!" in console, but no graphic is shown on map.

Re: Graphics not being updated on the map

TimDietz — Fri, 03 Jun 2022 13:48:24 GMT

You might want to post more code to give us a better context in order to see if we can help. Also, have you tried removing the 'as Polygon' from line 20? I have a very simple test file and it does not use that syntax.

Re: Graphics not being updated on the map

KenBuja — Fri, 03 Jun 2022 14:44:00 GMT

Is the spatial reference correct?

Re: Graphics not being updated on the map

Aeseir — Mon, 06 Jun 2022 09:20:32 GMT

Removing polygon wasn't it.

There is really not much more code other than a bigPolygon that has series of LatLng that get converted to XY coordinate using the webMercatorUtils.lngLatToXY. The out put for that is correct.

Re: Graphics not being updated on the map

Aeseir — Mon, 06 Jun 2022 09:21:01 GMT

No changes to spatial reference, they are same

Re: Graphics not being updated on the map

Aeseir — Mon, 06 Jun 2022 09:22:13 GMT

Ended up fixing this by completely deleting the page code and starting from scratch. Essentially copy and pasting into another file and running it from that file.

It worked then, there must have been something funny going on in the cache that cause the issue.