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A person using the map can use a pair of dividers (or, less precisely, two fingers) to measure a distance by comparing it to the linear scale. The length of the line on the linear scale is equal to the distance represented on the earth multiplied by the map or chart's scale. In most projections, scale varies with latitude, so on small scale ...
A small-scale map cover large regions, such as world maps, continents or large nations. In other words, they show large areas of land on a small space. They are called small scale because the representative fraction is relatively small. Large-scale maps show smaller areas in more detail, such as county maps or town plans might. Such maps are ...
The preferred type of scale indicator depends on the purpose and audience of the map: a representative fraction is precise, but most of the public does not know what it means; a very precisely marked scale bar is most useful when distance measurements need to be made, but can be overkill when they do not; many general-audience maps, such as web ...
For example, the answer to the famous question "How Long Is the Coast of Britain" is highly dependent on the choice of cartographic scales. In cartography and spatial analysis , scale effect and zoning effect (different ways of zoning lead to different statistical outcomes) combined can lead to modifiable areal unit problem (MAUP).
In this, it is a strategy that is similar to proportional symbol maps, which scale point features, and many flow maps, which scale the weight of linear features. However, these two techniques only scale the map symbol , not space itself; a map that stretches the length of linear features is considered a linear cartogram (although additional ...
In geography, different geographic (scale) levels are distinguished: The local scale level relates to a small area, usually a city or municipality; The regional scale level relates to a larger area, usually a region, state or province; The national scale level relates to a country; The continental scale level refers to a continent;
This implies that the vertical scale factor, h, equals the horizontal scale factor, k. Since k = sec φ, so must h. The graph shows the variation of this scale factor with latitude. Some numerical values are listed below. at latitude 30° the scale factor is k = sec 30° = 1.15, at latitude 45° the scale factor is k = sec 45° = 1.41,
For example, a linear map is a homomorphism of vector spaces, while the term linear function may have this meaning or it may mean a linear polynomial. [3] [4] In category theory, a map may refer to a morphism. [2] The term transformation can be used interchangeably, [2] but transformation often refers to a function from a set to itself.