17-2 Special mapping equations 393
Fig. 17.12. Mapping the sphere to a cone. Polar aspect, equal area mapping, equidistant and conformal on
two standard parallel Φ = Φ 1 = 30
◦ and Φ = Φ 2 = 60
◦ (Albers projection).
With these formulae, we close the discussion of the polar aspect of the mappings “sphere to cone”.
In the chapter that follows, let us discuss the pseudo-conic aspect.
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