Map Projections: Conformal Projections

Peirce's Quincuncial Projection
Charles Sanders Peirce, while at the U.S. Coast and Geodetic Survey, disclosed his projection in 1879. In the normal aspect, it presents the northern hemisphere centered on a square; the other hemisphere is split into four triangles symmetrically surrounding the first one, akin to star-like projections. In effect, the whole map is a square, whose five pieces inspired Peirce to call his projection quincuncial (from Latin quinque, five).

Map Projections: Conformal Projections


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