Geometric Projections of the Sphere and the Spheroid
Published in: The Canadian Geographer, v. 3, Autumn 1961, p. 12-21
Posted on RAND.org on December 31, 1960
Geometric projections have become increasingly important for the purpose of processing geographic (locational) data. A general theory is presented here whereby all mapping equations may be simply derived from one fundamental principle, that of the preservation of incidence relation together with the choice of an appropriate mapping basis (i.e. co-ordinate system).