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Map scale is ALWAYS shown on a map. Shown below is a British M726, 1:50,000 scale map with the ratio and scale lines shown. Estimating and measuring distance. As maps show a grid and have scale lines, it is possible to estimate or measure distances for use on the ground or on a map.
13 paź 2015 · Purpose. A map provides information on the existence of the location and the distance between ground features, such as populated places and routes of travel, and communication. It also...
(a) Measure the distance between two points on the map—map distance (MD). (b) Determine the horizontal distance between these same two points on the ground— ground distance (GD).
As maps show a grid and have scale lines, it is possible to estimate or measure distances for use on the ground or on a map. Distances are either DIRECT (straight line) or INDIRECT (measured along a road or route).
The grid used on a military topographic map can be used to identify any point in the world using a standard polyconic projection of a spherical surface onto the flat surface of a map.
Measure Distance on a Military Map. A graphic scale is a ruler printed on the map and is used to convert distances on the map to actual ground distances. The graphic scale is divided into two parts. To the right of the zero, the scale is marked in full units of measure and is called the primary scale.
construction of actual territory. All instruction in map-reading should aim at training the observer (a) to visualize correctly the nature of the surface features shown ; (b) to discover his position in any region. for which a map is provided ; and (c) to proceed by night.
