topic Re: Shifting data of undefined coordinate system using known parameters in Coordinate Reference Systems Questions https://community.esri.com/t5/coordinate-reference-systems-questions/shifting-data-of-undefined-coordinate-system-using/m-p/856773#M1545 <HTML><HEAD></HEAD><BODY><P>Also posted (with an answer) on <A href="http://gis.stackexchange.com/questions/129628/shifting-dwg-file-to-align-with-a-shapefile/129680#129680">gis.SE</A>.</P></BODY></HTML> Fri, 09 Jan 2015 22:36:57 GMT MelitaKennedy 2015-01-09T22:36:57Z Shifting data of undefined coordinate system using known parameters https://community.esri.com/t5/coordinate-reference-systems-questions/shifting-data-of-undefined-coordinate-system-using/m-p/856772#M1544 <HTML><HEAD></HEAD><BODY><P>I'm trying to integrate data in a .dwg file collected by surveyors&nbsp; into an ArcView 10.2 project I have projected as NAD83 UTM Zone 10 N.&nbsp; The survey data is in an undefined coordinate system but I have values for the translation parameters, which are below as described by the surveyors. If anyone can provide insight into which utilities can perform this transformation and the steps necessary to do so, it would be appreciated.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P><SPAN style="color: #303030; font-family: 'Arial','sans-serif';">Our surveys were based on a local assumed coordinate system.</SPAN></P><P>To translate our local coordinates to UTM, you will have to (1) apply a scale factor to your UTM mapping coordinates of 0.99960196 and (2) apply the following shifts in northings and eastings : ΔN = 5 441 341.306 &amp; ΔE = 491 604.143.&nbsp; After going thru this procedure, you will have a list of UTM mapping coordinates.</P></BODY></HTML> Fri, 09 Jan 2015 07:44:15 GMT https://community.esri.com/t5/coordinate-reference-systems-questions/shifting-data-of-undefined-coordinate-system-using/m-p/856772#M1544 ScottEverett 2015-01-09T07:44:15Z Re: Shifting data of undefined coordinate system using known parameters https://community.esri.com/t5/coordinate-reference-systems-questions/shifting-data-of-undefined-coordinate-system-using/m-p/856773#M1545 <HTML><HEAD></HEAD><BODY><P>Also posted (with an answer) on <A href="http://gis.stackexchange.com/questions/129628/shifting-dwg-file-to-align-with-a-shapefile/129680#129680">gis.SE</A>.</P></BODY></HTML> Fri, 09 Jan 2015 22:36:57 GMT https://community.esri.com/t5/coordinate-reference-systems-questions/shifting-data-of-undefined-coordinate-system-using/m-p/856773#M1545 MelitaKennedy 2015-01-09T22:36:57Z