#map_projection__mapprojection  a projection of the globe onto a flat map using a grid of lines of latitude and longitude
  supertype:  projection.representation  the representation of a figure or solid on a plane as it would look from a particular direction
  subtype:  conformal_projection__conformalprojection__orthomorphic_projection  a map projection in which a small area is rendered in its true shape
  subtype:  conic_projection__conicprojection__conical_projection__conicalprojection  a map projection of the globe onto a cone with its point over one of the earth's poles
     subtype:  polyconic_projection__polyconicprojection  a conic projection of a map having distances between meridians equal to those distance on a globe
  subtype:  equal-area_projection__equal-area_map_projection  a map projection in which quadrilaterals formed by meridians and parallels have an area on the map proportional to their area on the globe
     subtype:  homolosine_projection  an equal-area projection map of the globe; oceans are distorted in order to minimize the distortion of the continents
     subtype:  sinusoidal_projection__Sanson-Flamsteed_projection  an equal-area map projection showing parallels and the equator as straight lines and other meridians as curved; used to map tropical latitudes
  subtype:  Mercator_projection__Mercator's_projection  a map projection of the earth onto a cylinder; areas appear greater the farther they are from the equator

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