topic How do I project jpg mosaic? in Map Projections Questions https://community.esri.com/t5/map-projections-questions/how-do-i-project-jpg-mosaic/m-p/818308#M170 <HTML><HEAD></HEAD><BODY><P>I have a folder from a colleague of jpg, prj and jgw files expported from global mapper. I do not see anything but the jpg files in arcview arcgis version 10.0.</P><P>Add data loads the jpgs, I get the message "the following sources you added are missing spatial reference information. This data can be drawn in Arcmap. But cannot be profected."&nbsp; And that is what it does.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>How do I get arcmap to ustilize the projection data in the lprj and jgw files?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks</P><P>Jamie</P></BODY></HTML> Thu, 13 Nov 2014 22:51:43 GMT jamieburgess 2014-11-13T22:51:43Z How do I project jpg mosaic? https://community.esri.com/t5/map-projections-questions/how-do-i-project-jpg-mosaic/m-p/818308#M170 <HTML><HEAD></HEAD><BODY><P>I have a folder from a colleague of jpg, prj and jgw files expported from global mapper. I do not see anything but the jpg files in arcview arcgis version 10.0.</P><P>Add data loads the jpgs, I get the message "the following sources you added are missing spatial reference information. This data can be drawn in Arcmap. But cannot be profected."&nbsp; And that is what it does.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>How do I get arcmap to ustilize the projection data in the lprj and jgw files?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks</P><P>Jamie</P></BODY></HTML> Thu, 13 Nov 2014 22:51:43 GMT https://community.esri.com/t5/map-projections-questions/how-do-i-project-jpg-mosaic/m-p/818308#M170 jamieburgess 2014-11-13T22:51:43Z Re: How do I project jpg mosaic? https://community.esri.com/t5/map-projections-questions/how-do-i-project-jpg-mosaic/m-p/818309#M171 <HTML><HEAD></HEAD><BODY><P>To be honest, I'm not the best person to answer this question because I don't know the default behaviour (which I assume would be to use the .jgw file if the projection info is not found in the image header), but <A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//009t00000028000000">this link</A> shows you how to force ArcMap to use the world file, under ArcMap Options (see the bottom of the page). If that still fails, open the .prj or .jgw in a text editor to determine the desired projection, then <A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//009t0000002m000000">define the coordinate system yourself</A>.</P></BODY></HTML> Thu, 13 Nov 2014 23:28:18 GMT https://community.esri.com/t5/map-projections-questions/how-do-i-project-jpg-mosaic/m-p/818309#M171 DarrenWiens2 2014-11-13T23:28:18Z