Map Projection Definition Geography

There are two common types of coordinate systems used in gis: A map projection is the result of applying mathematical formulas relating spherical coordinates in a system of geographic coordinates, to plane coordinates. This requires a systematic transformation of the coordinates, often expressed as latitude and longitude, of locations from the surface of the globe into locations on a plane.

Map projections the problem of how to best display the earth's surface has puzzled cartographers, or mapmakers, throughout history. Map projection noun a means of representing or a representation of the globe or celestial sphere or part of it on a flat map, using a grid of lines of latitude and longitude words nearby map. It can also be defined as the transformation of spherical network of parallels and meridians on a plane surface.

When you talk about map projections, usually this is in the context of mapping the surface of the earth.

Map projection n (surveying) a means of representing or a representation of the globe or celestial sphere or part of it on a flat map, using a grid of lines of latitude and longitude collins english. The form of the surface used for the projection. Since the earth is roughly the shape of an oblate spheroid, map projections are necessary for creating maps of the earth or parts of the earth that are represented on a plane such as a piece of paper or a computer screen. In effect, a projection is a systematic method of drawing the earth’s meridians and parallels on a flat surface.