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indicatrix

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Tissot's indicatrix helps illustrate map projection distortion - Esri
A single ellipse is called an “indicatrix”, and it shows the distortion at the point where it is centered. www.esri.com
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Indicatrix - Wikipedia
Indicatrix may refer to: Differential geometry. edit · Dupin indicatrix, a conic section which describes the local shape of a surface; Tissot's indicatrix, ... en.wikipedia.org
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Tissot's indicatrix - Wikipedia
It is the geometry that results from projecting a circle of infinitesimal radius from a curved geometric model, such as a globe, onto a map. en.wikipedia.org
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indicatrix
indicatrix (ɪndɪˈkeɪtrɪks) [mod.L., fem. of indicator: see -trix. Cf. directrix.] 1. Geom. The curve in which a given surface is cut by a plane indefinitely near and parallel to the tangent-plane at any point; so called because it indicates the nature of the curvature of the surface at that point.18... Oxford English Dictionary
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INDICATRIX Definition & Meaning - Merriam-Webster
The meaning of INDICATRIX is an ellipsoid whose axes are proportional to the principal refractive indices of a crystal and from which various optical ... www.merriam-webster.com
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Indicatrix
Indicatrix Asserting coefficients and parameter scaling In travel demand modeling, it is somewhat common to “assert” coefficients rather than estimating them ... indicatrix.org
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Tissot indicatrices
The size, shape, and orientation of this ellipse (which is called an indicatrix) describes the spatial distortion at that location. By placing indicatrices at ... www.geography.hunter.cuny.edu
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Optic Indicatrix
The indicatrices are the representation of the values for "n" for all the directions of vibration of a crystal. edafologia.ugr.es
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Tissot Indicatrix - Compare Map Projections
Tissot's Indicatrix is a method to visualize the distortions of a map projection. It was introduced in 1859 by the French mathematician Nicolas Auguste ... map-projections.net
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Tissot's Indicatrix - mgimond.github.io
Nicolas Tissot's indicatrix is designed to quantify the level of distortion in a map projection. The idea is to project a small circle. mgimond.github.io
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Tissot's indicatrix
1 day ago — It doesn't have Euler Spiral[1] either, but maybe that's expecting too much. [1] http://andersk.mit.edu/euler-spiral-projection/ · reply ...
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Tangent indicatrix
In differential geometry, the tangent indicatrix of a closed space curve is a curve on the unit sphere intimately related to the curvature of the original Then the tangent indicatrix of is the closed curve on the unit sphere given by . wikipedia.org
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Curvature and Torsion of tangent indicatrix I'm trying to find the curvature and torsion of the tangent indicatrix of a curve with respect to the curvature and torsion of the initial curve, that is, if $\kappa, \tau$ ...
Actually, it's simple: $$\sigma' = \kappa N$$ $$\sigma'' = \kappa'N-\kappa^2T+\kappa\tau B$$ Thus $$\sigma' \times \sigma'' = \kappa^3B+\kappa^2\tau T$$
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Dupin indicatrix
In differential geometry, the Dupin indicatrix is a method for characterising the local shape of a surface. The indicatrix was introduced by Charles Dupin. wikipedia.org
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Problem understanding the indicatrix tangent definition I'm self studying differential geometry of curves and surfaces from a book that gives the following definition of indicatrix tangent: > Given an arc length para...
* For example, small wind forces shouldn't tear a string of hair * So this indicatrix thing is just the tangent flow curve.
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