Skip to main content

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

Required fields*

10
  • How did you attempt to transform the coordinates? Did you try this method: victoria.ac.nz/sgees/pdf/projection-transformation-guide.pdf Commented Oct 1, 2015 at 13:58
  • 1
    Welcome to GIS SE. As a new user please be sure to take the Tour. Please edit the question to specify whether you tried to redefine the existing projection or whether you tried to reproject. Please use exact tool names with shapefile names and include any errors or describe results in the text of the question. Commented Oct 1, 2015 at 13:59
  • I took a look to the similar questions and I tried changing the coordinate system with the "projections and transformations" tools (project). I also tried to project the files too. I am missing something .... Commented Oct 1, 2015 at 14:12
  • 1
    @Maria ArcMap will display your data from two different systems correctly without any re-projecting provided that the original data hasn't had its coordinate system defined incorrectly. This behavior is called "on the fly" projection, and is great, however it takes more computer resources than if the data is in the same CS. If you truly need to make sure that both data sets are in the same system then the only geo-processing tool you need is call "Project". As long as your data has a coordinate system already associated(which it sounds like it does) this will do what you need. Commented Oct 1, 2015 at 14:34
  • 2
    UTM zone 8N is just wrong. It should be zone 18N. However, the coordinates don't look right to me for UTM. I think it's MTM 8. Try redefining that data's coordinate system in ArcCatalog, or Define Projection Tool. Commented Oct 1, 2015 at 19:53