Cartographic Projection Design

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2 domain-specific abstractions whose origin domain is Cartographic Projection Design.

• Hammer Projection — An equal-area world-map projection that converts spherical longitude and latitude into a 2:1 elliptical map by applying a half-longitude Lambert azimuthal equal-area construction and reciprocal axis scaling.
• Wiechel Projection — A polar pseudoazimuthal equal-area map projection that retains Lambert radial spacing while twisting azimuth by half the spherical colatitude, turning meridians into a pinwheel of semicircles.