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Maps:
  • In general, maps are used to descale and represent the real world on a much smaller scale.
  • Maps help analyze, record and creating scalable paths (or) graphical waypoints for existing geographical locations.
  • Maps are useful in presenting key facts within a geographical context and thus enabling easier and quicker access to a complex concept descriptively.
  • A map is a diagrammatic representation of an area of land or sea showing physical features, cities, roads, etc.
  • Cartography is a science or art of making maps. The people who study (or) make maps are called cartographers.
Scaling:
Scaling refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. For example, on a 1:100000 scale map, 1 cm on the map equals 1km on the ground.
The typical measurement scales usually followed while mapping is as follows:
  • A neighborhood building: 1 cm = 20 cm
  • A city map on a full page: 1 cm = 2 km
  • India’s map on a full page: 1 cm = 200 km
  • The world Map: 1 cm = 3000 km