topic Re: Graphics Overlay without a basemap in .NET Maps SDK Questions

Graphics Overlay without a basemap

CityOf_Lorain — Wed, 28 Dec 2016 02:51:56 GMT

I'm trying to add a Graphics Overlay without a basemap. I loaded everything correctly and the graphics overlay doesn't show up. Why is this happening?

I just want to show the outline of a polygon without a basemap offline. Do I have to licenses offline even if i dont want to use the offline layers??

Re: Graphics Overlay without a basemap

AnttiKajanus1 — Tue, 03 Jan 2017 12:10:19 GMT

It's pretty hard to say without knowing what you are doing. Could you verify that you are specifying Maps SpatialReference when you create it.

 var myMap = new Map(SpatialReferences.Wgs84);‍‍

Re: Graphics Overlay without a basemap

dotMorten_esri — Tue, 03 Jan 2017 19:47:23 GMT

Overlays are only rendering when there's a valid map available.

You can create an empty map, but make sure you set the spatial reference and the initial viewpoint, or the mapview will wait for layers to be added to the map before rendering (It deduces the spatial reference and initial viewpoint from the layers if you don't provide those, so you must either provide layers, and/or the SR+Initial Viewpoint).