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Globe
A globe is a three-dimensional scale model of Earth (terrestrial globe) or other spheroid celestial body such as a planet, star, or moon. It may also refer to a spherical representation of the celestial sphere, showing the apparent positions of the...
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- A globe is a three-dimensional scale model of Earth (terrestrial globe) or other spheroid celestial body such as a planet, star, or moon. It may also refer to a spherical representation of the celestial sphere, showing the apparent positions of the...
Mercator projection
The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator, in 1569. It became the standard map projection for nautical purposes because of its ability to represent lines of...
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- The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator, in 1569. It became the standard map projection for nautical purposes because of its ability to represent lines of...
Transverse Mercator projection
The transverse Mercator projection is an adaptation of the Mercator projection. Both projections are cylindrical and conformal. However, in the transverse Mercator, the cylinder is rotated 90° (transverse) relative to the equator so that the...
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- The transverse Mercator projection is an adaptation of the Mercator projection. Both projections are cylindrical and conformal. However, in the transverse Mercator, the cylinder is rotated 90° (transverse) relative to the equator so that the...
Space-oblique Mercator projection
Space-oblique Mercator projection is a map projection.
The Space-oblique Mercator projection (SOM) was developed by John P. Snyder, Alden Partridge Colvocoresses and John L. Junkins in 1976. Snyder had an interest in maps, originating back to his...
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- Space-oblique Mercator projection is a map projection. The Space-oblique Mercator projection (SOM) was developed by John P. Snyder, Alden Partridge Colvocoresses and John L. Junkins in 1976. Snyder had an interest in maps, originating back to his...
Miller cylindrical projection
The Miller cylindrical projection is a modified Mercator projection, proposed by Osborn Maitland Miller (1897–1979) in 1942. The parallels of latitude are scaled by a factor of 2/5, projected according to Mercator, and then the result is multiplied...
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- The Miller cylindrical projection is a modified Mercator projection, proposed by Osborn Maitland Miller (1897–1979) in 1942. The parallels of latitude are scaled by a factor of 2/5, projected according to Mercator, and then the result is multiplied...
Robinson projection
The Robinson projection is a map projection of a world map, which shows the entire world at once. It was specifically created in an attempt to find a good compromise to the problem of readily showing the whole globe as a flat image.
The Robinson...
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- The Robinson projection is a map projection of a world map, which shows the entire world at once. It was specifically created in an attempt to find a good compromise to the problem of readily showing the whole globe as a flat image. The Robinson...
Sinusoidal projection
The sinusoidal projection is a pseudocylindrical equal-area map projection, sometimes called the Sanson-Flamsteed or the Mercator equal-area projection. It is defined by:
where is the latitude, is the longitude, and is the central meridian.
The...
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- The sinusoidal projection is a pseudocylindrical equal-area map projection, sometimes called the Sanson-Flamsteed or the Mercator equal-area projection. It is defined by: where is the latitude, is the longitude, and is the central meridian. The...
Orthographic projection
An orthographic projection is a map projection of cartography. Like the stereographic projection and gnomonic projection, orthographic projection is a perspective (or azimuthal) projection, in which the sphere is projected onto a tangent plane or...
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- An orthographic projection is a map projection of cartography. Like the stereographic projection and gnomonic projection, orthographic projection is a perspective (or azimuthal) projection, in which the sphere is projected onto a tangent plane or...
Stereographic projection
In geometry, the stereographic projection is a particular mapping (function) that projects a sphere onto a plane. The projection is defined on the entire sphere, except at one point — the projection point. Where it is defined, the mapping is smooth...
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- In geometry, the stereographic projection is a particular mapping (function) that projects a sphere onto a plane. The projection is defined on the entire sphere, except at one point — the projection point. Where it is defined, the mapping is smooth...
Gnomonic projection
A gnomonic map projection displays all great circles as straight lines. Thus the shortest route between two locations in reality corresponds to that on the map. This is achieved by projecting, with respect to the center of the Earth (hence...
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- A gnomonic map projection displays all great circles as straight lines. Thus the shortest route between two locations in reality corresponds to that on the map. This is achieved by projecting, with respect to the center of the Earth (hence...
Azimuthal Equalidistant
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Lambert azimuthal equal-area projection
The Lambert azimuthal equal-area projection is a particular mapping from a sphere to a disk. It accurately represents area in all regions of the sphere, but it does not accurately represent angles. Intuitively, it gives a planar picture of the...
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- The Lambert azimuthal equal-area projection is a particular mapping from a sphere to a disk. It accurately represents area in all regions of the sphere, but it does not accurately represent angles. Intuitively, it gives a planar picture of the...
Albers equal-area conic projection
The Albers equal-area conic projection, or Albers projection, is a conic, equal area map projection that uses two standard parallels. Although scale and shape are not preserved, distortion is minimal between the standard parallels.
The Albers...
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- The Albers equal-area conic projection, or Albers projection, is a conic, equal area map projection that uses two standard parallels. Although scale and shape are not preserved, distortion is minimal between the standard parallels. The Albers...
Lambert conformal conic projection
A Lambert conformal conic projection (LCC) is a conic map projection, which is often used for aeronautical charts. In essence, the projection superimposes a cone over the sphere of the Earth, with two reference parallels secant to the globe and...
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- A Lambert conformal conic projection (LCC) is a conic map projection, which is often used for aeronautical charts. In essence, the projection superimposes a cone over the sphere of the Earth, with two reference parallels secant to the globe and...
Mollweide projection
The Mollweide projection is a pseudocylindrical map projection generally used for global maps of the world (or sky). Also known as the Babinet projection, homolographic projection, or elliptical projection. As its more explicit name Mollweide equal...
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- The Mollweide projection is a pseudocylindrical map projection generally used for global maps of the world (or sky). Also known as the Babinet projection, homolographic projection, or elliptical projection. As its more explicit name Mollweide equal...
Polyconic projection
A polyconic projection is a conical map projection. The projection stems from "rolling" a cone tangent to the Earth at all parallels of latitude, instead of a single cone in a normal conic projection. Each parallel is a circular arc of true scale....
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- A polyconic projection is a conical map projection. The projection stems from "rolling" a cone tangent to the Earth at all parallels of latitude, instead of a single cone in a normal conic projection. Each parallel is a circular arc of true scale....
Behrmann projection
The Behrmann Projection is a cylindrical map projection. This is an orthographic projection onto a cylinder secant at the 30º parallels. It is equal-area, but distortion of shape increases with distance from the standard parallels. Scale is true...
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- The Behrmann Projection is a cylindrical map projection. This is an orthographic projection onto a cylinder secant at the 30º parallels. It is equal-area, but distortion of shape increases with distance from the standard parallels. Scale is true...
Equirectangular projection
The equirectangular projection (also called the equidistant cylindrical projection, geographic projection, plate carrée or carte parallelogrammatique projection or CPP) is a very simple map projection attributed to Marinus of Tyre, who Ptolemy...
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- The equirectangular projection (also called the equidistant cylindrical projection, geographic projection, plate carrée or carte parallelogrammatique projection or CPP) is a very simple map projection attributed to Marinus of Tyre, who Ptolemy...
Werner projection
The Werner projection is a pseudoconical equal-area map projection, sometimes called the Stabius-Werner or the Stab-Werner projection. Because it is heart shaped, it is sometimes called a cordiform projection. Its name is derived from the surnames...
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- The Werner projection is a pseudoconical equal-area map projection, sometimes called the Stabius-Werner or the Stab-Werner projection. Because it is heart shaped, it is sometimes called a cordiform projection. Its name is derived from the surnames...
Goode homolosine projection
The Goode homolosine projection (or interrupted Goode homolosine projection) is an interrupted, pseudocylindrical, equal-area, composite map projection used for world maps. Its equal-area property makes it useful for raster data representation.
The...
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- The Goode homolosine projection (or interrupted Goode homolosine projection) is an interrupted, pseudocylindrical, equal-area, composite map projection used for world maps. Its equal-area property makes it useful for raster data representation. The...
Collignon projection
The Collignon Projection is a pseudocylindrical map projection first known to be published by Édouard Collignon in 1865 and subsequently cited by A. Tissot in 1881.
For the smallest choices of the parameters chosen for this projection, the sphere...
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- The Collignon Projection is a pseudocylindrical map projection first known to be published by Édouard Collignon in 1865 and subsequently cited by A. Tissot in 1881. For the smallest choices of the parameters chosen for this projection, the sphere...
Chamberlin trimetric projection
The Chamberlin trimetric projection is a map projection where three points are fixed on a sphere and used to triangulate the transformation onto a plane. It was developed in 1947 by Wellman Chamberlin, chief cartographer of the National Geographic...
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- The Chamberlin trimetric projection is a map projection where three points are fixed on a sphere and used to triangulate the transformation onto a plane. It was developed in 1947 by Wellman Chamberlin, chief cartographer of the National Geographic...
Adams hemisphere-in-a-square projection
The Adams-hemisphere-in-a-square is a conformal map projection for a hemisphere (except for four points where the conformality fails). It is a transverse version of the Peirce quincuncial projection. When it is used to represent the entire sphere it...
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- The Adams-hemisphere-in-a-square is a conformal map projection for a hemisphere (except for four points where the conformality fails). It is a transverse version of the Peirce quincuncial projection. When it is used to represent the entire sphere it...
Lambert cylindrical equal-area projection
In cartography, the Lambert cylindrical equal-area projection, Lambert cylindrical projection, or cylindrical equal-area projection is a cylindrical, equal area map projection.
The invention of this projection is attributed to the Alsatian...
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- In cartography, the Lambert cylindrical equal-area projection, Lambert cylindrical projection, or cylindrical equal-area projection is a cylindrical, equal area map projection. The invention of this projection is attributed to the Alsatian...
Waterman "Butterfly" World Map Projection
The Waterman "Butterfly" World Map Projection was created by Steve Waterman and published in 1996. It is an octahedral transformation of a globe, reviving the Butterfly Map principle first developed by Bernard J.S. Cahill (1866-1944) in 1909....
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- The Waterman "Butterfly" World Map Projection was created by Steve Waterman and published in 1996. It is an octahedral transformation of a globe, reviving the Butterfly Map principle first developed by Bernard J.S. Cahill (1866-1944) in 1909....
Bonne projection
A Bonne projection is a pseudoconical equal-area map projection, sometimes called a dépôt de la guerre or a Sylvanus projection. Although named after Rigobert Bonne (1727-1795), the projection was in use prior to his birth, in 1511 by Sylvano,...
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- A Bonne projection is a pseudoconical equal-area map projection, sometimes called a dépôt de la guerre or a Sylvanus projection. Although named after Rigobert Bonne (1727-1795), the projection was in use prior to his birth, in 1511 by Sylvano,...
Craig retroazimuthal projection
The Craig retroazimuthal map projection was created by James Ireland Craig in 1909. It is a cylindrical projection preserving the direction from any place to another, predetermined place while avoiding some of the bizarre distortion of the Hammer...
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- The Craig retroazimuthal map projection was created by James Ireland Craig in 1909. It is a cylindrical projection preserving the direction from any place to another, predetermined place while avoiding some of the bizarre distortion of the Hammer...
Tobler hyperelliptical projection
The Tobler hyperelliptical projection is a family of pseudocylindrical projections used for mapping the earth.
It is named for Waldo R. Tobler, its inventor.
It is an equal-area projection. In the normal aspect, the parallels of latitude are...
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- The Tobler hyperelliptical projection is a family of pseudocylindrical projections used for mapping the earth. It is named for Waldo R. Tobler, its inventor. It is an equal-area projection. In the normal aspect, the parallels of latitude are...
Two-point equidistant projection
The two-point equidistant projection is a map projection first described by Hans Maurer in 1919. Distances from any point on the map to two control points scale to the geodesic distances of the same points on the sphere. The projection is commonly...
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- The two-point equidistant projection is a map projection first described by Hans Maurer in 1919. Distances from any point on the map to two control points scale to the geodesic distances of the same points on the sphere. The projection is commonly...
Bottomley projection
A Bottomley projection is an equal-area map projection.
Parallels (i.e. lines of latitude) are concentric elliptical arcs of constant eccentricity, centred on the north pole. On the central meridian, shapes are not distorted, but elsewhere they are....
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- A Bottomley projection is an equal-area map projection. Parallels (i.e. lines of latitude) are concentric elliptical arcs of constant eccentricity, centred on the north pole. On the central meridian, shapes are not distorted, but elsewhere they are....
GS50
GS50 is a map projection.
The GS50 projection was developed by John P. Snyder of the [USGS] in 1982.
The GS50 projection provides is a conformal projection suitable only for maps of the 50 United States. Scale varies less than 2% throughout the area...
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- GS50 is a map projection. The GS50 projection was developed by John P. Snyder of the [USGS] in 1982. The GS50 projection provides is a conformal projection suitable only for maps of the 50 United States. Scale varies less than 2% throughout the area...
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