NTA-NET (UGC-NET) Geography (80) Cartography-Scale and Types of Scale Study Material (Page 1 of 2)

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Scales: Types of Scales

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Maps are made to scale. Scale is the ratio of map distance to ground distance. Larger scale means a smaller representative fraction.

Establishing a scale for a map is an important design decision. Among other things, the following items are controlled by scale:

  • Amount of data or detail which can be shown on the map
  • Graphic size and its production suitability, utilizing available materials and equipment
  • Cost of reproduction of the map
  • Product readability considering enlargement or reduction of map
  • Regional extent of the information shown on the map
  • Degree and nature of the generalization
  • Suitability of an available base map for a specific purpose
  • Ease of use of the map by the intended market
  • Amount of time a cartograp…

… (467 more words, 98 figures) …

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Scales: Reduction and Enlargement

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Reduction and Enlargement

In the process of compiling maps, cartographers are often required to reduce or enlarge maps. Reduction or enlargement involves change in size of the map and hence its scale.

Concept: Take a sheet of ordinary notebook and assume it is a map of a given scale.…

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