You can get point and centroid locations from any georeferenced raster dataset, mosaic dataset, or image service. A DEM is required if you're making measurements in 3D.
Tip:
The units for these measurements can be changed in the Mensuration Results .
Getting measurements at a point
The Point Location tool identifies the location of a point.
Finding the centroid and its measurements
The Centroid tool calculates the centroid location of an area.