Coordinate Systems

1. Coordinate Systems

2. Co-ordinate system
• Global co-ordinate system
• Local co-ordinate system
• Miscellaneous co-ordinate system

3. Co-ordinate System
• Reference System
• Absolute location
• Relative location

4. Cartesian Co-ordinate system
Dire((x1, y1), (x2, y2))= {(y1-y2)/(x1,x2)

5. Rectangular Grid Reference

6. Basic Coordinate System
• The geographical coordinate system
employing latitude and longitude, can be
traced to the 2nd century B.C. The
geographical coordinate system is the
primary location reference system for the
earth.

7. Geographic Coordinate System
• Latitude
• Parallel of latitude
• Longitude
• Meridian of longitude

10. Latitude:
Angular distance north or
south of equator.
Parallel of latitude:
An imaginary line
Drawn round the earth parallel to the
equator and at a constant angular
distance from it.

11. Parallels of latitude
• 180°
• Equator
• Complete circles
• Great circle

15. Longitude:
Angular distance east or
west of Prime Meridian.
Meridians of longitude:
One of the lines
of longitudes which link the north
pole to south pole and cut the
equator at right angles

16. Meridians of Longitude
• 360°
• Prime meridian
• Complete circles