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There are 3 major types of projections: cylindrical, conic, and planar. ... ; planar projection; A planar projection is a type of map in which the details of the globe are projected onto a plane (a flat surface) yielding a rectangular-shaped map. Cylindrical maps have a lot of distortion towards the edges.
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www.enchantedlearning.com/geography/glossary/projection...
www.enchantedlearning.com/geography/glossary/projections.shtml
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A map projection is a way to represent the curved surface of the Earth on the flat surface of a map. A good globe can provide the most accurate representation of the Earth. However, a globe isn't practical for many of the functions for whic...
http://www.nationalatlas.gov/articles/mapping/a_project...
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Planar projections, also called azimuthal projections, project map data onto a flat surface. The simplest planar projection is tangent to the globe at one point. Although the point of contact may be any point on the earth's surface, the north and south poles are the most common contact points for most GIS databases.
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www.geo.hunter.cuny.edu/~jochen/GTECH201/Lectures/Lec6c...
www.geo.hunter.cuny.edu/~jochen/GTECH201/Lectures/Lec6concepts/Map%20coordinate%20systems/Planar%20projections.htm
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The planar equatorial aspect places the earth's equator in the center of the map projection. As with the polar aspect, the resulting differences between the three examples below are due solely to the position of the light source.
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www.geo.hunter.cuny.edu/~jochen/GTECH201/Lectures/Lec6c...
www.geo.hunter.cuny.edu/~jochen/GTECH201/Lectures/Lec6concepts/Map%20coordinate%20systems/Equatorial%20aspect%20for%20planar%20projections.htm
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Parallel projections catagorize one of two major subclasses of planar geometric projections. Projections within this subclass have two characteristics in common. The first characteristic concerns the placement of the center of projection (PRP) which represents the camera or viewing position.
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www.mtsu.edu/~csjudy/planeview3D/tutorial-parallel.html
www.mtsu.edu/~csjudy/planeview3D/tutorial-parallel.html
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Planar Geometric Projections Tutoria ... An Introduction to Planar Geometric Projections ... Subclasses of Planar Geometric Projections...
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www.mtsu.edu/~csjudy/planeview3D/tutorial.html
www.mtsu.edu/~csjudy/planeview3D/tutorial.html
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A well-known method for interpreting planar projections (images) of three-dimensional polyhedra is to label their lines by the Clowes-Huffman scheme. However, the question of whether there is such a labeling has been shown to be NP-complete. ... TI - Effectively Labeling Planar Projections of Polyhedra; IS - 2;
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doi.ieeecomputersociety.org/10.1109/34.44400
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This paper presents the results of adapting existing image-based and object-based approaches for generating interactive stereoscopic non-planar projections for polygonal scenes on consumer graphics hardware.
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cgs.hpi.uni-potsdam.de/publications/Public/2009/TLD09/
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Azimuthal (Planar) Map Projections ... If a light source inside the globe projects the graticule onto the plane the result would be a planar, or azimuthal, map projection. If the imaginary light is inside the globe a Gnomonic projection results, if the light is antipodal a Sterographic, and if at infinity, an Orthographic.
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www.geography.hunter.cuny.edu/mp/plane.html
www.geography.hunter.cuny.edu/mp/plane.html
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