topic Re: What units is maxDeviation in Esri.ArcGISRuntime.Geometry.GeometryEngine.Generalize ? in .NET Maps SDK Questions https://community.esri.com/t5/net-maps-sdk-questions/what-units-is-maxdeviation-in-esri-arcgisruntime/m-p/83404#M886 <HTML><HEAD></HEAD><BODY><P>Generalization is usually done using what is now known as the <A href="https://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm">Ramer-Douglas-Peucker algorithm</A>.&nbsp; The units of the deflection parameter (epsilon) is in Cartesian mapping units (for WGS84, Cartesian degrees).&nbsp; Ten meters would be on the order of 0.0001 degrees (near the equator).</P><P></P><P>- V</P></BODY></HTML> Thu, 17 Mar 2016 14:16:26 GMT VinceAngelo 2016-03-17T14:16:26Z What units is maxDeviation in Esri.ArcGISRuntime.Geometry.GeometryEngine.Generalize ? https://community.esri.com/t5/net-maps-sdk-questions/what-units-is-maxdeviation-in-esri-arcgisruntime/m-p/83403#M885 <HTML><HEAD></HEAD><BODY><P>Trying to generalize some geometry to a 10 meter maxDeviation. When I use 10 as my maxDeviation, no generalization occurs. When I divide 10 by ~315 I get a little too much generalization. It's clear to me that the units of maxDeviation are not meters, but what are they? Polygons are lat/lon and datum is WGS84.</P></BODY></HTML> Thu, 17 Mar 2016 13:49:34 GMT https://community.esri.com/t5/net-maps-sdk-questions/what-units-is-maxdeviation-in-esri-arcgisruntime/m-p/83403#M885 MarcHillman 2016-03-17T13:49:34Z Re: What units is maxDeviation in Esri.ArcGISRuntime.Geometry.GeometryEngine.Generalize ? https://community.esri.com/t5/net-maps-sdk-questions/what-units-is-maxdeviation-in-esri-arcgisruntime/m-p/83404#M886 <HTML><HEAD></HEAD><BODY><P>Generalization is usually done using what is now known as the <A href="https://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm">Ramer-Douglas-Peucker algorithm</A>.&nbsp; The units of the deflection parameter (epsilon) is in Cartesian mapping units (for WGS84, Cartesian degrees).&nbsp; Ten meters would be on the order of 0.0001 degrees (near the equator).</P><P></P><P>- V</P></BODY></HTML> Thu, 17 Mar 2016 14:16:26 GMT https://community.esri.com/t5/net-maps-sdk-questions/what-units-is-maxdeviation-in-esri-arcgisruntime/m-p/83404#M886 VinceAngelo 2016-03-17T14:16:26Z