topic Re: Bug: GeometryEngine.Equals ignores Z coordinate of points. in .NET Maps SDK Questions

Bug: GeometryEngine.Equals ignores Z coordinate of points.

MateuszZugaj — Thu, 14 Oct 2021 14:40:41 GMT

Version Esri.ArcGISRuntime 100.12. Tested both in dotnet core and dotnet framework.

GeometryEngine.Equals(new MapPoint(0,0,1),new MapPoint(0,0,2)) returns true.

I reproduced it in a blank project, so no prerequsited needed.

Re: Bug: GeometryEngine.Equals ignores Z coordinate of points.

dotMorten_esri — Thu, 14 Oct 2021 15:41:04 GMT

This is a known limitation in the geometry engine.

From https://developers.arcgis.com/net/api-reference/api/netwin/Esri.ArcGISRuntime/Esri.ArcGISRuntime.Geometry.GeometryEngine.html :

> GeometryEngine generally operates in two dimensions; operations do not account for z-values unless documented as such for a specific method (for example Project(Geometry, SpatialReference) will transform z-values in some cases).

Re: Bug: GeometryEngine.Equals ignores Z coordinate of points.

Nicholas-Furness — Thu, 14 Oct 2021 16:48:11 GMT

If you're interested in a full, exact geometry comparison, including Z and M values, you can use Geometry.IsEqual(). Depending on your use case, you might also find Geometry.Equals() helpful, which allows you to specify a tolerance.