Datum concepts used in the 4th GTECH 361 lecture

 

Basics of datums

 

Components of a datum

 

Datum transformation

 

Datum transformation with ArcGIS

 

Determining the earths shape

 

Determining the earths size

 

Graticule

 

Locating features on the graticule

 

The earths shape is a spheroid

 

The earths shape is an ellipsoid