topic Re: Symbols with Images not displaying - Layer Renderer in ArcGIS Runtime SDK for iOS Questions

Symbols with Images not displaying - Layer Renderer

YashvitNaik — Mon, 29 Jul 2019 10:21:32 GMT

Hi,

I am using the current 100.5.0 version of Esri SDK for iOS, We have a Service Url from which layers are loaded, Most of the layers are of type 'esriGeometryPoint' and have multiple symbols under the renderers.

The issue here is that, the symbols for which an image is uploaded don’t get drawn on the map, the other symbols with default styles like, 'esriSMSCircle' or ’esriSLSSolid’ show up fine as well as the label shows up without any hitch.

If I override the Symbols with a simple Renderer (described below), the layers get drawn appropriately.

SimpleLineSymbol symbol = new SimpleLineSymbol {

Color = Color.Blue,

Width = 2,

Style = SimpleLineSymbolStyle.Solid

};

featureLayer.Renderer = new SimpleRenderer(symbol);

Hence all the Symbols which have ‘ImageData’ in it won’t get plotted i.e the ones for which images(png, jpg) have been uploaded to. Please find attached the Layer sample.

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Mon, 29 Jul 2019 17:04:10 GMT

Hi there. Do the layers draw properly if you add them to a web map?

Is there any chance of getting access to the layers (you can Direct Message me if you need to).

Re: Symbols with Images not displaying - Layer Renderer

MichaelDavis3 — Mon, 29 Jul 2019 18:42:46 GMT

Sounds like it might be the same server bug that was causing my issue:

https://community.esri.com/thread/236290-invalid-renderer-json-in-runtime-geodatabase

There is a service patch out that is supped to fix it - I haven't had time to confirm though.

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Mon, 29 Jul 2019 19:15:52 GMT

It crossed my mind, but from my understanding that wouldn't impact you with the JSON you provided.

Here's the service patch info: ArcGIS (Desktop, Engine, Server) Microsoft ( R ) Windows ( R ) June 2019 Security Update Compatibility Patch

You could try setting useAdvancedSymbology = false and see if that helps. Please let me know.

Re: Symbols with Images not displaying - Layer Renderer

MichaelDavis3 — Mon, 29 Jul 2019 19:27:18 GMT

That did work for me - implemented that workaround on all our v100 apps for the time being.

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Mon, 29 Jul 2019 19:50:14 GMT

Thanks Michael. To clarify, setting useAdvancedSymbology = false allowed these images to work?

Re: Symbols with Images not displaying - Layer Renderer

MichaelDavis3 — Mon, 29 Jul 2019 20:31:45 GMT

Sorry I'm not OP. Was just chiming in that the issue sounds similar on the surface.

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Mon, 29 Jul 2019 20:34:54 GMT

Oh boy. I guess I could have noticed that .

Re: Symbols with Images not displaying - Layer Renderer

YashvitNaik — Tue, 30 Jul 2019 07:02:46 GMT

Thanks Nicholas !! The flag "useAdvancedSymbology = false" worked for me, But was just curious, are picture symbols not considered as 'AdvancedSymbology' ? Because the layers draw properly if you add them to a web map, without this flag, this seems to happening on only the ios and android applications (using latest xamarin sdk).

Would be great if you could throw some light on this

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Tue, 30 Jul 2019 15:30:24 GMT

Hey Yashvit.

I've learnt something today.

I've confirmed that even in the case of Picture Markers, Runtime will default to requesting advanced symbology from the server which will process the images into EMF data. This then does fall under the same issue that Michael mentioned above, and you should patch your servers according to the information here: ArcGIS (Desktop, Engine, Server) Microsoft ( R ) Windows ( R ) June 2019 Security Update Compatibility Patch

Sorry it took me a while to figure that out.

Nick.

P.S. Incidentally, since you're working with .NET and Xamarin, you should probably post questions here: ArcGIS Runtime SDK for .NET

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Tue, 30 Jul 2019 16:50:25 GMT

Yashvit Naik: could you add &returnadvancedsymbols=true to your service URL and attach the JSON as you did in the original post please? We want to make sure that you're encountering what we think you're encountering and that it's not something else.

Thanks!

Nick.

Re: Symbols with Images not displaying - Layer Renderer

YashvitNaik — Wed, 31 Jul 2019 07:19:26 GMT

As requested Please find attached the JSON response, thanks once again Nick.

regards

Re: Symbols with Images not displaying - Layer Renderer

Nicholas-Furness — Wed, 31 Jul 2019 18:02:28 GMT

Yep. That's not working because of the above issue. You'll need to patch your servers. Thanks for sending the JSON.