topic What does Geodesic = true mean when buffering with a projected coordinate system? in ArcGIS Runtime SDK for WPF (Retired) Questions https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/what-does-geodesic-true-mean-when-buffering-with-a/m-p/56497#M265 <HTML><HEAD></HEAD><BODY><SPAN>I am somewhat confused by the API reference for </SPAN><A href="http://resources.arcgis.com/en/help/runtime-wpf/apiref/index.html?ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Tasks.BufferParameters_members.html">BufferParameters</A><SPAN>.&nbsp; It is quite clear that if I am trying to buffer a geometry in a geographic/unprojected coordinate system, that I need to set geodesic = true in order to get a result with accurate distances.&nbsp; </SPAN><BR /><BR /><SPAN>But what is not explained is what setting geodesic = true does when buffering a geometry in a projected coordinate system.&nbsp; Is Geodesic = true ignored in a projected coordinate system resulting in a buffer which never takes into account the distortions of the projection?&nbsp; Or will the buffer operation always try to correct for distortions?</SPAN><BR /><BR /><SPAN>If the spatial reference in question uses a projected coordinate system, can I create accurate buffers by projecting to a spatial reference with a geographic spatial reference?</SPAN><BR /><BR /><SPAN>Or am I just completely and utterly confused?</SPAN><BR /><BR /><SPAN>Thanks and sorry for my ignorance.</SPAN></BODY></HTML> Thu, 06 Mar 2014 20:01:31 GMT JohnHolden 2014-03-06T20:01:31Z What does Geodesic = true mean when buffering with a projected coordinate system? https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/what-does-geodesic-true-mean-when-buffering-with-a/m-p/56497#M265 <HTML><HEAD></HEAD><BODY><SPAN>I am somewhat confused by the API reference for </SPAN><A href="http://resources.arcgis.com/en/help/runtime-wpf/apiref/index.html?ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Tasks.BufferParameters_members.html">BufferParameters</A><SPAN>.&nbsp; It is quite clear that if I am trying to buffer a geometry in a geographic/unprojected coordinate system, that I need to set geodesic = true in order to get a result with accurate distances.&nbsp; </SPAN><BR /><BR /><SPAN>But what is not explained is what setting geodesic = true does when buffering a geometry in a projected coordinate system.&nbsp; Is Geodesic = true ignored in a projected coordinate system resulting in a buffer which never takes into account the distortions of the projection?&nbsp; Or will the buffer operation always try to correct for distortions?</SPAN><BR /><BR /><SPAN>If the spatial reference in question uses a projected coordinate system, can I create accurate buffers by projecting to a spatial reference with a geographic spatial reference?</SPAN><BR /><BR /><SPAN>Or am I just completely and utterly confused?</SPAN><BR /><BR /><SPAN>Thanks and sorry for my ignorance.</SPAN></BODY></HTML> Thu, 06 Mar 2014 20:01:31 GMT https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/what-does-geodesic-true-mean-when-buffering-with-a/m-p/56497#M265 JohnHolden 2014-03-06T20:01:31Z