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2. Scale (map) - Wikipedia

   en.wikipedia.org/wiki/Scale_(map)

   The terms are sometimes used in the absolute sense of the table, but other times in a relative sense. For example, a map reader whose work refers solely to large-scale maps (as tabulated above) might refer to a map at 1:500,000 as small-scale. In the English language, the word large-scale is often used to mean "extensive".

3. Linear scale - Wikipedia

   en.wikipedia.org/wiki/Linear_scale

   Bowditch defined only "bar scale" in its 1962 Glossary, [4] but added a reference to "graphic scale" by its 2002 edition. [5] Dutton used both terms in 1978. [2] The International Hydrographic Organization's Chart No. 1 uses only "linear scale". [6] The British Admiralty's Mariner's Handbook uses "scale" to describe a linear scale and avoids ...

4. Map - Wikipedia

   en.wikipedia.org/wiki/Map

   Many maps are drawn to a scale expressed as a ratio, such as 1:10,000, which means that 1 unit of measurement on the map corresponds to 10,000 of that same unit on the ground. The scale statement can be accurate when the region mapped is small enough for the curvature of the Earth to be neglected, such as a city map .

5. Cartographic generalization - Wikipedia

   en.wikipedia.org/wiki/Cartographic_generalization

   During the first half of the 20th century, cartographers began to think seriously about how the features they drew depended on scale. Eduard Imhof, one of the most accomplished academic and professional cartographers at the time, published a study of city plans on maps at a variety of scales in 1937, itemizing several forms of generalization that occurred, including those later termed ...

6. Fuller calculator - Wikipedia

   en.wikipedia.org/wiki/Fuller_calculator

   The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.

7. Military Grid Reference System - Wikipedia

   en.wikipedia.org/wiki/Military_Grid_Reference_System

   The intersection of a UTM zone and a latitude band is (normally) a 6° × 8° polygon called a grid zone, whose designation in MGRS is formed by the zone number (one or two digits – the number for zones 1 to 9 is just a single digit, according to the example in DMA TM 8358.1, Section 3-2, [1] Figure 7), followed by the latitude band letter ...

8. Gall–Peters projection - Wikipedia

   en.wikipedia.org/wiki/Gall–Peters_projection

   This ratio determines the standard parallel of the projection, which is the parallel at which there is no distortion and along which distances match the stated scale. The standard parallels of the Gall–Peters are 45° N and 45° S. Several other specializations of the equal-area cylindric have been described, promoted, or otherwise named. [4 ...

9. Mercator projection - Wikipedia

   en.wikipedia.org/wiki/Mercator_projection

   For example, a Mercator map printed in a book might have an equatorial width of 13.4 cm corresponding to a globe radius of 2.13 cm and an RF of approximately ⁠ 1 / 300M ⁠ (M is used as an abbreviation for 1,000,000 in writing an RF) whereas Mercator's original 1569 map has a width of 198 cm corresponding to a globe radius of 31.5 cm and an ...