What are projections?
A map projection is a systematic representation of all or part of the surface of a round body, especially the Earth, on a plane (Snyder, 1987, Map Projections – A Working Manual, USGS Professional Paper 1395). In order to display some part or all of the earth on a flat surface, a map projection is required. This representation cannot be made without distortion. Generally, for charts covering a small area (large scale), the distortion is small, while charts covering a large area (small scale) will have significant distortion.
Related Questions
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