topic Re: Polygon with donut rendering abnormally. in ArcGIS JavaScript Maps SDK Questions

Polygon with donut rendering abnormally.

KevinMorrow — Tue, 29 Nov 2022 21:10:25 GMT

I have multi ring polygons which may or may not have donuts. In 3.x the polygons all render correctly at all zoom levels. In 4.23 the inner ring (donut hole) renders correctly until I zoom in past a certain level.

If I use a 3D map the rendering is inverse what I expect.

If I import a shapefile with the geometry at a zoom level that renders existing feature incorrectly the the initial rendering is correct until I change zoom level.

Any ideas???

Re: Polygon with donut rendering abnormally.

UndralBatsukh — Wed, 30 Nov 2022 15:54:07 GMT

Hi there,

Would be you able to share the json polygon geometry so that we can repro the behavior and debug?

Thanks,

-Undral

Re: Polygon with donut rendering abnormally.

KevinMorrow — Wed, 30 Nov 2022 17:05:00 GMT

Hi Undral,

I attached the shapefile I used. I have variations of this with different numbers of polygon but this is the simplest. In the San Diego area.

Regards,

Kevin.

Re: Polygon with donut rendering abnormally.

UndralBatsukh — Wed, 30 Nov 2022 19:54:17 GMT

Thank you so much for the shapefile. I will test it as soon as I can and will let you know what we find out.

Re: Polygon with donut rendering abnormally.

UndralBatsukh — Wed, 30 Nov 2022 20:10:52 GMT

So I uploaded the shameful to ArcGIS online and added the layer to the JS API test app. I tested both in SceneView and MapView and I do not see the behaviors you describe. Here is a codepen: https://codepen.io/U_B_U/pen/LYrJXXb?editors=100

Re: Polygon with donut rendering abnormally.

KevinMorrow — Thu, 20 Mar 2025 00:54:39 GMT

Hi Undral,

I am still getting this issue in 4.31. Just wondering if the ring order could have anything to do with the issue. The geometry is coming from an OGC format WKT, which has reverse order of the rings, and converted to Esri json. COuld it be that 3.x understands this and 4.x not? I have other rendering issues with 4.x where the editor in 2d mode will not properly render geometries with z coordinates. 3.x happily renders geometry with z coordinates as if it ignores the z values.