conformal projection
See Also: projection
[map projections] A projection that preserves the correct shapes of small areas.
Conformal Projection
A map projection which is a conformal mapping, i.e., one for which local (infinitesimal) angles on a sphere are mapped to the same angles in the projection.
Conformal Projections
Introduction
A map projection faithfully reproducing all features of the original sphere would be perfectly equidistant; i.e., distances between every two points would keep the same ratio on both map and sphere.
Conformal Projection
Projection which preserves the original shape of the area of interest but not the area or distance.
Convergence of Information
The principle of using multiple indicators to deduce information.
Conformal Projection: A projection wherein the scale is the same in every direction at any point. Meridians and parallels intersect at right angles; the shape of small areas and angles with very short sides are preserved.
conformal projections cannot have equal area properties, so some areas are enlarged
generally, areas near margins have a larger scale than areas near the center
Equal area (Equivalent) ...
conformal projection
A projection that preserves the correct shapes of small areas. In a conformal projection, graticule lines intersect at 90-degree angles, and at any point on the map the scale is the same in all directions.
A conformal projection primarily preserves shape, an equidistant projection primarily preserves distance, and an equal-area projection primarily preserves area.
These images show the earth using several different projections: ...
Three conformal projections were chosen: the Lambert Conformal Conic for states that are longer in the east-west direction, such as Washington, Tennessee, and Kentucky, ...
Because conformal projections show angles correctly, they are suitable for sea, air, and meteorological charts. This is useful for displaying the flow of oceanic or atmospheric currents, for instance.
This is a conformal projection in that shapes are well preserved over the map, although extreme distortions do occur towards the edge of the map.
Mercator, Gerhardt A sixteenth century cartographer, best known for his cylindrical conformal projection in 1569 that became the standard for world navigation, ...
Azimuthal conformal projection: see Stereographic projection
Azimuthal equidistant projection
Behrmann projection
Bonne projection
Bottomley projection
Chamberlin projection
Craig retroazimuthal projection
Dymaxion projection ...
Conformal projections preserve right angles between lines of latitude and longitude and are primarily used because they preserve direction. Area is always distorted on conformal maps.
Here a description of equal area and conformal projections is provided. Cylindrical projections are covered with great detail in this chapter. The characteristics, formulas and table for the Mercator is included.
The Mercator Conformal Projection Norris Wiemer, University of Alberta.
John Snyder An obituary of the man who achieved immortality by computerizing the mathematical algorithms for transforming map projections.
The digitised data were rectified to longitude and latitude coordinates from the lambert conformal projection of the 1:1M air navigation charts using a program which calculated the mathematical inverse of the projection.
Conformal projections are those on which the scale is the same in any direction at any point on the map.
Conformal projections seek to preserve true shape: the best known of these is the Mercator (cylindrical), in which they space meridians equally and parallels become closer near the equator.
In conformal projections, large land masses are distorted while small shapes, local scales and relative angles in the large land mass are preserved. Equidistant maps show true scale between one or two points and every other point.
Conformal projections preserve angular relationships, and better preserve arc-length, while equal-area projections are more appropriate for statistical studies and work in which the amount of material is important.
map cannot show the entire earth's surface -- the polar regions must be omitted.
Mercator's map shows all meridians as vertical lines and all parallels as horizontal lines of the same length.
Mercator's map is an example of a conformal projection.
 See also: Projection, Conformal, Map, Area, Map Projection
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