Indicatrix
Indicatrix In`di*ca"trix, n. [NL.] (Geom. of Three Dimensions) A certain conic section supposed to be drawn in the tangent plane to any surface, and used to determine the accidents of curvature of the surface at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curvature is synclastic, and an hyperbola when the curvature is anticlastic. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Indicatrix — (indikatorische Linie), s. Flächentheorie, Bd. 4, S. 73 …   Lexikon der gesamten Technik

  • indicatrix — indikatrisė statusas T sritis fizika atitikmenys: angl. indicatrix vok. Indikatrix, f rus. индикатриса, f pranc. indicatrice, f …   Fizikos terminų žodynas

  • indicatrix — noun An ellipsoid whose three axes represent the refractive indices of an anisotropic crystal for light following different directions with respect to the crystal axes …   Wiktionary

  • indicatrix — in·dica·trix …   English syllables

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  • Tissot's Indicatrix — Tissot’s indicatrix, or ellipse of distortion, is a concept developed by French mathematician Nicolas Auguste Tissot, in 1859 and 1871, to measure and illustrate distortions due to map projection. It is the theoretical figure that results from… …   Wikipedia

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  • Scale (map) — The scale of a map is defined as the ratio of a distance on the map to the corresponding distance on the ground. If the region of the map is small enough for the curvature of the Earth to be neglected, then the scale may be taken as a constant… …   Wikipedia

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