Complex buffer polygons

[MarkCederholm]

I have some complex buffer polygons displayed from a runtime geodatabase.  If I'm zoomed all the way out, they appear fine, but when I zoom in closer, errant lines shoot all over the place.  Is there a known limitation for rendering polygons?

[AnttiKajanus1]

Hi Mark,

Not that I know. Could you create a simple producer for the issue?

[MarkCederholm]

I've attached an example.  When I just buffered AZ highways, the problem didn't appear.  Then I buffered AZ towns and appended the two classes together, and that did the trick (zoom into the southern part of the state).  There seems to be more of a problem with rendering lots of widely scattered little polygon parts.

[MarkCederholm]

FYI, I'm also seeing GeometryEngine errors on the two test polygons:

Internal error exception

   at RuntimeCoreNet.Interop.HandleException(Boolean retVal)

   at RuntimeCoreNet.CoreGeometryEngine.Intersects(ICoreGeometry coreGeometry1, ICoreGeometry coreGeometry2, CoreSpatialReference coreSpatialReference)

   at Esri.ArcGISRuntime.Geometry.GeometryEngine.Intersects(Geometry geometry1, Geometry geometry2)

Update:  If I simplify the polygons, the intersection test works.

Update 2: I just looked at the results of the simplify, and they're bogus.

[AnttiKajanus1 · Accepted solution]

I have logged a bug issue for this, thanks for providing repro. Could you also provide repros for the GeometryEngine issues that you are seeing?

[MarkCederholm]

Attached

[AnttiKajanus1]

Thanks Mark again, I have confirmed issue and logged a bug issue for these ones.

[MarkCederholm]

FYI, as a workaround, I have accomplished production-level workflow using arcpy to slice the polygons into smaller chunks before exporting to Runtime content.

[AnttiKajanus1]

Also exporting geometries to json and read them from there seems to do the trick.

[AnttiKajanus1]

Hi Mark,

How did you create the geodatabase? What tools were used etc? If you don't want to share that information publicly, please send it directly to me to akajanus-at-esri.com.

cheers,

Antti