I have two shape files, with the same coordinate system (File 1 and File 2).
I have defined the Projection/Coordinate System of File 2 in ArcGIS using ArcToolbox using the Data Management Tools/Projections and Transformations/Define Projection.
For selecting the coordinate system. I have used the import button and have it use the same coordinate system of file 2.
Everything seems right the current coordinate system of both files is the same, but the files don’t align /overlap. What is wrong with these files? The only strange thing that I find is the Units that in both cases are “Unknown Units”.
The data source box of both files is the same :
Data Type: Shapefile Feature Class
Shapefile: C:\SIG\Cartografia\Cartas_uso_do_solo\CLC06_PT\CLC06_PT.shp
Geometry Type: Polygon
Coordinates have Z values: No
Coordinates have measures: No
Projected Coordinate System: ETRS_1989_Portugal_TM06
Projection: Transverse_Mercator
False_Easting: 0.00000000
False_Northing: 0.00000000
Central_Meridian: -8.13310833
Scale_Factor: 1.00000000
Latitude_Of_Origin: 39.66825833
Linear Unit: Meter
Geographic Coordinate System: GCS_ETRS_1989
Datum: D_ETRS_1989
Prime Meridian: Greenwich
Angular Unit: Degree