Calculating Map Projections for the Ellipsoid
Autor: | John P. Snyder |
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Rok vydání: | 1979 |
Předmět: |
Geography
Planning and Development General Engineering Oblique case Geometry Space-oblique Mercator projection Universal Transverse Mercator coordinate system law.invention law Management of Technology and Innovation General Earth and Planetary Sciences Polyconic projection Transverse Mercator projection Mercator projection Scale (map) Map projection General Environmental Science Civil and Structural Engineering Mathematics |
Zdroj: | The American Cartographer. 6:67-76 |
ISSN: | 0094-1689 |
DOI: | 10.1559/152304079784022727 |
Popis: | Application of standard map projections to the ellipsoidal Earth is often considered excessively difficult. Using a few symbols for frequently-used combinations, exact equations may be shown in compact form for ellipsoidal versions of conformal, equal-area, and equidistant projections developed onto the cone, cylinder (in conventional position), and plane, as well as for the polyconic projection. Series are needed only for true distances along meridians. The formulas are quite interrelated. The ellipsoidal transverse and oblique Mercator projections remain more involved. An adaptation of the Space Oblique Mercator projection provides a new ellipsoidal oblique Mercator which, unlike Hotine's, retains true scale throughout the length of the central line. |
Databáze: | OpenAIRE |
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