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Orthographic map projection

Azimuthal perspective map projection / From Wikipedia, the free encyclopedia

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Orthographic projection in cartography has been used since antiquity. 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 secant plane. The point of perspective for the orthographic projection is at infinite distance. It depicts a hemisphere of the globe as it appears from outer space, where the horizon is a great circle. The shapes and areas are distorted, particularly near the edges.[1][2]

Orthographic projection (equatorial aspect) of eastern hemisphere 30Wā€“150E
The orthographic projection with Tissot's indicatrix of deformation.

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