• Thumbnail for Polyhedral map projection
    A polyhedral map projection is a map projection based on a spherical polyhedron. Typically, the polyhedron is overlaid on the globe, and each face of...
    9 KB (964 words) - 01:07, 18 May 2025
  • Thumbnail for Dymaxion map
    The Dymaxion map projection, also called the Fuller projection, is a kind of polyhedral map projection of the Earth's surface onto the unfolded net of...
    13 KB (1,367 words) - 17:11, 16 April 2025
  • Thumbnail for AuthaGraph projection
    proportions, and unfolding it in the form of a rectangle: it is a polyhedral map projection. The map substantially preserves sizes and shapes of all continents...
    6 KB (520 words) - 15:01, 4 March 2025
  • particular projection Polyhedral maps Polyhedral maps can be folded up into a polyhedral approximation to the sphere, using particular projection to map each...
    32 KB (772 words) - 04:49, 5 May 2025
  • Thumbnail for Map projection
    a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane. In a map projection...
    59 KB (6,451 words) - 10:08, 9 May 2025
  • Thumbnail for Snyder equal-area projection
    Snyder equal-area projection is a polyhedral map projection used in the ISEA (Icosahedral Snyder Equal Area) discrete global grids. It is named for John...
    3 KB (266 words) - 18:03, 4 August 2024
  • Thumbnail for Quadrilateralized spherical cube
    quadrilateralized spherical cube, or quad sphere for short, is an equal-area polyhedral map projection and discrete global grid scheme for data collected on a spherical...
    7 KB (822 words) - 20:59, 7 June 2025
  • Thumbnail for Waterman butterfly projection
    arrangement is an unfolding of a polyhedral globe with the shape of a truncated octahedron, evoking the butterfly map principle first developed by Bernard...
    4 KB (413 words) - 16:28, 1 April 2025
  • Thumbnail for Gall–Peters projection
    The Gall–Peters projection is a rectangular, equal-area map projection. Like all equal-area projections, it distorts most shapes. It is a cylindrical...
    18 KB (2,100 words) - 07:18, 2 June 2025
  • Thumbnail for Stereographic map projection
    stereographic projection, also known as the planisphere projection or the azimuthal conformal projection, is a conformal map projection whose use dates...
    6 KB (721 words) - 21:47, 22 September 2024
  • Thumbnail for Mercator projection
    The Mercator projection (/mərˈkeɪtər/) is a conformal cylindrical map projection first presented by Flemish geographer and mapmaker Gerardus Mercator...
    49 KB (6,858 words) - 10:56, 5 June 2025
  • Thumbnail for Interruption (map projection)
    butterfly projection divides the world into octahedral sections. More generally, any mapping onto polyhedral faces becomes an interrupted map when laid...
    5 KB (499 words) - 11:06, 3 September 2023
  • Thumbnail for Orthographic map projection
    Orthographic projection in cartography has been used since antiquity. Like the stereographic projection and gnomonic projection, orthographic projection is a...
    7 KB (856 words) - 13:24, 29 October 2024
  • Thumbnail for Cahill–Keyes projection
    The Cahill–Keyes projection is a polyhedral compromise map projection first proposed by Gene Keyes in 1975. The projection is a refinement of an earlier...
    4 KB (332 words) - 17:57, 10 January 2023
  • Thumbnail for Equal-area projection
    or equal-area projection is a map projection that preserves relative area measure between any and all map regions. Equivalent projections are widely used...
    8 KB (799 words) - 03:12, 12 January 2025
  • Thumbnail for Octant projection
    projection and Roselli's pseudocylindric projection. The octant projection is the first known polyhedral map projection. It is neither conformal nor equal-area...
    11 KB (1,080 words) - 05:08, 5 May 2025
  • Thumbnail for Lee conformal world in a tetrahedron
    The Lee conformal world in a tetrahedron is a polyhedral, conformal map projection that projects the globe onto a tetrahedron using Dixon elliptic functions...
    3 KB (285 words) - 22:48, 27 December 2024
  • Thumbnail for Azimuthal equidistant projection
    equidistant projection maps The azimuthal equidistant projection is an azimuthal map projection. It has the useful properties that all points on the map are at...
    12 KB (1,307 words) - 21:10, 25 May 2025
  • Thumbnail for Transverse Mercator projection
    The transverse Mercator map projection (TM, TMP) is an adaptation of the standard Mercator projection. The transverse version is widely used in national...
    40 KB (4,647 words) - 19:20, 21 April 2025
  • Thumbnail for Mollweide projection
    The Mollweide projection is an equal-area, pseudocylindrical map projection generally used for maps of the world or celestial sphere. It is also known...
    8 KB (1,052 words) - 16:45, 8 December 2024
  • Thumbnail for Sinusoidal projection
    sinusoidal projection is a pseudocylindrical equal-area map projection, sometimes called the Sanson–Flamsteed or the Mercator equal-area projection. Jean Cossin...
    4 KB (464 words) - 22:24, 3 December 2024
  • Thumbnail for Gnomonic projection
    gnomonic projection, also known as a central projection or rectilinear projection, is a perspective projection of a sphere, with center of projection at the...
    13 KB (1,522 words) - 21:32, 22 May 2025
  • Thumbnail for Robinson projection
    The Robinson projection is a map projection of a world map that shows the entire world at once. It was specifically created in an attempt to find a good...
    9 KB (980 words) - 06:54, 25 May 2025
  • Thumbnail for Equirectangular projection
    the plate carrée projection (also called the geographic projection, lat/lon projection, or plane chart), is a simple map projection attributed to Marinus...
    7 KB (795 words) - 06:47, 9 May 2025
  • In cartography, a conformal map projection is one in which every angle between two curves that cross each other on Earth (a sphere or an ellipsoid) is...
    11 KB (1,211 words) - 00:36, 1 September 2024
  • Thumbnail for Equal Earth projection
    The Equal Earth map projection is an equal-area pseudocylindrical global map projection, invented by Bojan Šavrič, Bernhard Jenny, and Tom Patterson in...
    5 KB (601 words) - 03:29, 5 May 2025
  • Thumbnail for Werner projection
    The Werner projection is a pseudoconic equal-area map projection sometimes called the Stab-Werner or Stabius-Werner projection. Like other heart-shaped...
    2 KB (167 words) - 00:26, 1 September 2024
  • Thumbnail for Winkel tripel projection
    The Winkel tripel projection (Winkel III), a modified azimuthal map projection of the world, is one of three projections proposed by German cartographer...
    6 KB (593 words) - 20:34, 17 May 2025
  • Thumbnail for Goode homolosine projection
    homolosine projection (or interrupted Goode homolosine projection) is a pseudocylindrical, equal-area, composite map projection used for world maps. Normally...
    4 KB (410 words) - 04:26, 5 May 2025
  • In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic (or Euler number, or Euler–Poincaré...
    29 KB (3,420 words) - 16:52, 28 May 2025