GIS Syllabus Discussion by Athar Hashmi
17Contents
Chapter 1 – Basic of Map Information for GIS 7
1.1 Introduction 7
1.2 Map 8
1.2.1 Types of Maps 8
1.3 Map Projections 9
1.3.1 Cylindrical Projection 9
1.3.2 Conic Projection 9
1.3.3 Azimuthal Projection 9
1.4 Datum 10
1.5 Marginal Information of Topographic Map 11
1.6 Scale of map 12
1.7 Magnetic Information 15
1.8 Symbols 16
1.9 Map Coordinate system 18
1.9.1 Latitude and Longitude 18
1.9.2 Universal Transverse Mercator (UTM) 20
1.10 Map Sheet Referencing 22
1.11 Extent and numbering method for various scale 23
1.12 Relief presentation 25
1.12.1 Spot Heights & contours 25
1.12.2 Bench Mark 25
1.13 Practical use of map information 26
1.13.1 Calculation of and distance 26
1.13.2 Calculation of grid coordinates of points 27
1.14 Use of GPS and remote sensing in map update and navigation 28
1.14.1 GPS (Global Positioning System) 28
1.14.2 Remote sensing 28
1.15 Exercise 31