AnsweredAssumed Answered

Using a ecw file as a base map in Arcmap 10.2 desktop?

Question asked by davidocummings on Apr 16, 2015
Latest reply on Apr 16, 2015 by davidocummings

HI I am new to GIS and still learning.  How can I use an ortho rectified ecw file as my base map.  Is it as simple as opening it in ArcMap, or not.   On attempting this I do not seem to be able to set the coordinate system and I get a warning that the data does not have a spatial reference information?