UNIT – III
GEOGRAPHIC INFORMATION SYSTEMS: INTRODUCTION TO GIS;
COMPONENTS OF A
GIS; GEOSPATIAL DATA: SPATIAL DATA-ATTRIBUTE DATA – JOINING
SPATIAL AND
ATTRIBUTE DATA; GIS OPERATIONS: SPATIAL DATA INPUT- ATTRIBUTE
DATA MANAGEMENT
–DATA DISPLAY- DATA EXPLORATION- DATA ANALYSIS. COORDINATE
SYSTEMS:
GEOGRAPHIC COORDINATE SYSTEM: APPROXIMATION OF THE EARTH,
DATUM; MAP
PROJECTIONS: TYPES OF MAP PROJECTIONS-MAP PROJECTION
PARAMETERS-COMMONLY
USED MAP PROJECTIONS – PROJECTED COORDINATE SYSTEMS