topic How to changes coordinates to lon/lat? in ArcGIS Spatial Analyst Questions

How to changes coordinates to lon/lat?

HelenaAsttrom — Mon, 04 Apr 2011 08:44:00 GMT

Hey,

I'm a first time user of ArcGis or any GIS software and I've run into the following problem that I do not seem to be able to solve.

I've opened a Landsat image and I need to define the exact location of some dams that I can see in the image in lon/lat coordinates. Now ArcGis shows coordinates in meter units and my problem is that I simply need to change the units of coordinates to lon/lat for the image. How do i do this?

Thank you,
Helena

Re: How to changes coordinates to lon/lat?

TimothyHales — Mon, 04 Apr 2011 12:49:39 GMT

There are a couple of things that you could do. You could change the status bar display units by opening the data frame properties > General tab > Units > Display. Another option would be to project the raster from a projected coordinate system to a geographic coordinate systems such as GCS_1984 using the Project Raster tool. Lastly, you could create a point feature class or shapefile with the GCS_1984 coordinate system and add points to the map during an edit session. Then run the Add XY Coordinates tool on the point file and the Lat/Long will be added to the attribute table.

Re: How to changes coordinates to lon/lat?

HelenaAsttrom — Wed, 06 Apr 2011 11:25:48 GMT

Thank you 🙂