sinusoidal projection


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Related to sinusoidal projection: Mollweide projection

sinusoidal projection

[‚sī·nə′sȯid·əl prə′jek·shən]
(mapping)
An equal-area map projection in which the parallels are equally spaced, straight lines drawn to scale, the central meridian is a straight line perpendicular to the equator along which the scale is true, and the other meridians are sine curves, concaving toward the central meridian.
References in periodicals archive ?
An exception was the Sinusoidal projection which had curving arcs but was (at the time) most likely to have been approximated with piecewise straight lines.
The Sinusoidal projection had been used earlier but it was especially promoted by Nicolas Sanson d'Abbeville (1600-1667) when he was France's first Royal Cartographer during the period around 1650.
Various publications including Wang (1991) and Jupp (2017) have shown how the Kangxi period maps used the Sinusoidal projection and can be treated as if they were modern maps to estimate principal scale and map accuracy.