Orthographic projection cartography

In cartography, an orthographic projection normally is a two-dimensional map of a globe. The shapes and areas are distorted, but distances are preserved along parallels.

For a simple orthographic projection, the following formulas can be used:

x = \rho \, \sin\phi \, \cos\lambda
y = \rho \, \sin\phi \, \sin\lambda

where ρ is the radius, λ is the longitude, and φ is the latitude.


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