Concept information
Preferred term
Tissot's indicatrix
Definition
- Tissot's indicatrix is a graphical means for the depiction of the amount and direction of distortion inherent in a map projection transformation. Invented by French mathematician Nicolas August Tissot, the elliptical figure is the result of a theoretical pointsized circle of unit radius on the globe or spheroid having gone through the map projection, and so having been distorted in size and shape. [Source: Encyclopedia of Geographic Information Science; Tissot's Indicatrix]
Broader concept
Belongs to group
URI
http://data.loterre.fr/ark:/67375/N9J-L5F446MR-6
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