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circumcircle

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  • License MIT

Fast algorithm to calculate the circumcircle of a triangle

Package Exports

  • circumcircle

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (circumcircle) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

circumcircle

Fast algorithm to calculate the circumcircle of a 2D triangle.

demo

Install

npm install circumcircle

Example

const circumcircle = require('circumcircle');

const points = [ [0.0, -0.5], [0.5, 0.5], [-0.5, 0.5] ];
console.log(circumcircle(points));

Output:

{ x: 0, y: 0.125, r: 0.625 }

Demo

circumcircle demo

Usage

circumcircle(points, radiusSq = false)

  • points an array with 3 points [ [x,y], [x,y], [x,y] ]

  • radiusSq returns the radius squared - faster because it skips Math.sqrt()

Returns an object with circumcenter and circumradius { x, y, r }

Credits

Lingjia Liu and Joseph O'Rourke

See Also

License

MIT, see LICENSE for details.