(Q861364)

English

Winkel tripel projection

compromise map projection defined as the arithmetic mean of the equirectangular projection and the Aitoff projection

Winkel III

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instance of

aphylactic projection

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Winkel projection

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image

Winkel triple projection SW.jpg
2,058 × 1,262; 733 KB

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discoverer or inventor

Oswald Winkel

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defining formula

{\begin{aligned}x&={\frac {1}{2}}\left(\lambda \cos \varphi _{1}+{\frac {2\cos \varphi \sin {\frac {\lambda }{2}}}{\operatorname {sinc} \alpha }}\right)\\y&={\frac {1}{2}}\left(\varphi +{\frac {\sin \varphi }{\operatorname {sinc} \alpha }}\right)\end{aligned}}

defining formula

{\begin{aligned}\varphi _{1}&=\arccos {\frac {2}{\pi }}\\\alpha &=\arccos \left(\cos \varphi \cos {\frac {\lambda }{2}}\right)\end{aligned}}

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maintained by WikiProject

WikiProject Mathematics

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Commons category

Winkel tripel projection

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category for maps

Category:Maps with Winkel tripel projection

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Identifiers

1 reference

28 October 2013

Microsoft Academic ID

41822488

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Sitelinks

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commonswiki Category:Winkel tripel projection