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Vector confusion



via konrad.tumlbr.com

via konrad.tumlbr.com

I think I probably would have said “no! a circle with edges” but let’s not split hairs. I did once have to explain that in the world of GIS, both a circle and a square (well, rectangle) were polygons. Which was met with, “no! it’s a circle!” So, multiple choice:

  1. point
  2. polyline
  3. polygon

which one will the circle be? Short answer—thank flying spaghetti monster for bezier curves or else really it would just be an approximation of a circle. Blew their mind. And then, sent them screaming from the room by rasterizing a circle using a cell size of roughly the diameter and the cell’s centroid. Squared that circle!

Categories: GIS Tags: ,
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