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compare-oriented-cell

compare-oriented-cell

This module defines an ordering on oriented cells. It is similar to compare-cell, except that it considers cells which are oriented clockwise/counter clockwise to be distinct.

Example

var compare = require('compare-oriented-cell')
 
//Create 3 triangles 
var a = [0, 1, 2]
var b = [1, 2, 0]
var c = [1, 0, 2]
 
//Triangle a and b are equivalent up to an even permutation 
console.log(compare(a, b) === 0)
 
//Triangle a and c are different as they not oriented the same 
console.log(compare(a, c) === 0)

Install

npm i compare-oriented-cell

API

require('compare-oriented-cell')(a, b)

Compares two oriented cells.

  • a, b are lists of integers

Returns +/-1 if a and b are different, 0 otherwise

License

(c) 2015 Mikola Lysenko. MIT License