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The Peirce quincuncial projection is the conformal map projection from the sphere to an unfolded square dihedron, developed by Charles Sanders Peirce in 1879. Each octant projects onto an isosceles right triangle, and these are arranged into a square. The name quincuncial refers to this arrangement: the north pole at the center and quarters of the south pole in the corners form a quincunx pattern like the pips on the five face of a traditional die. The projection has the distinctive property that it forms a seamless square tiling of the plane, conformal except at four singular points along the equator.

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  • Die Quincunx-Kartenprojektion ist eine von Charles S. Peirce im Jahr 1879 veröffentlichte konforme Kartenprojektion (auch Stereografische Projektion), die in allen Bereichen mit Ausnahme der Ecken der inneren Hemisphäre konform, das heißt winkeltreu ist. (de)
  • The Peirce quincuncial projection is the conformal map projection from the sphere to an unfolded square dihedron, developed by Charles Sanders Peirce in 1879. Each octant projects onto an isosceles right triangle, and these are arranged into a square. The name quincuncial refers to this arrangement: the north pole at the center and quarters of the south pole in the corners form a quincunx pattern like the pips on the five face of a traditional die. The projection has the distinctive property that it forms a seamless square tiling of the plane, conformal except at four singular points along the equator. Typically the projection is square and oriented such that the north pole lies at the center, but an oblique aspect in a rectangle was proposed by Émile Guyou in 1887, and a transverse aspect was proposed by Oscar Adams in 1925. The projection has seen use in digital photography for portraying spherical panoramas. (en)
  • パース・クインカンシャル図法(パース・クインカンシャルずほう、英語: Peirce quincuncial projection)とは、地図投影法の一種で、球面を正方形に投影する、有限個の点を除き正角な図法である。1879年、アメリカ沿岸測地局(現在のアメリカ海洋大気庁国立測地測量局と沿岸測量部の前身)に在籍していたチャールズ・サンダース・パースが、en:Schwarz–Christoffel mappingを元にして考案した。 (ja)
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  • January 2018 (en)
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  • Die Quincunx-Kartenprojektion ist eine von Charles S. Peirce im Jahr 1879 veröffentlichte konforme Kartenprojektion (auch Stereografische Projektion), die in allen Bereichen mit Ausnahme der Ecken der inneren Hemisphäre konform, das heißt winkeltreu ist. (de)
  • パース・クインカンシャル図法(パース・クインカンシャルずほう、英語: Peirce quincuncial projection)とは、地図投影法の一種で、球面を正方形に投影する、有限個の点を除き正角な図法である。1879年、アメリカ沿岸測地局(現在のアメリカ海洋大気庁国立測地測量局と沿岸測量部の前身)に在籍していたチャールズ・サンダース・パースが、en:Schwarz–Christoffel mappingを元にして考案した。 (ja)
  • The Peirce quincuncial projection is the conformal map projection from the sphere to an unfolded square dihedron, developed by Charles Sanders Peirce in 1879. Each octant projects onto an isosceles right triangle, and these are arranged into a square. The name quincuncial refers to this arrangement: the north pole at the center and quarters of the south pole in the corners form a quincunx pattern like the pips on the five face of a traditional die. The projection has the distinctive property that it forms a seamless square tiling of the plane, conformal except at four singular points along the equator. (en)
rdfs:label
  • Quincunx-Kartenprojektion (de)
  • パース・クインカンシャル図法 (ja)
  • Peirce quincuncial projection (en)
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