We break our world down into macro-scale regions such as countries, into ports where ships can visit, and into numerous other categories which have a business and/or technical meaning for the problems Vortexa has set out to solve. We have quite a lot of polygons at Vortexa too, and we infer a lot of meaning from them.
#Earth point measure polygon how to
How to determine whether a point is within a shape. This example is a visual representation of a simple mathematical problem called point-in-polygon. If I share my location with my partner, and she sees I am at home (in that small shape on a map which we call home, essentially a polygon though we’d never call it that), crossing that location, that point, with that shape, has meaning. Polygons can impart design, can subdivide resources, and can impart meaning. Everywhere.Ĭhristo and Jeanne-Claude: The London Mastaba, photo by Gary Etchell These shapes are with us everywhere, whether in the shapes forming circuits within the silicon chips in your smartphone, to geofences you set up when asking for a reminder in a certain place, to the planning of cities and residential zones. I’ve never really had a use for an isosceles trapezium, though I saw a spectacular one once by Christo and Jean-Claude in the Serpentine. Right-angled triangles and fun with Pythagoras’ theorem, hexagons, isosceles trapeziums. We probably all came across polygons at school. Who should read this article: engineers, data scientists, people interested in mathematics, or geospatial engineering Written by Ed Wright, Vortexa Lead Geospatial Engineer
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