Created
July 15, 2013 07:44
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| angular.module('Map').service 'MapGeometry', ['Underscore', (_) -> | |
| get: (point_a, point_b) -> | |
| delta_x = point_b[0] - point_a[0] | |
| delta_y = point_b[1] - point_a[1] | |
| cos_alpha = delta_x / Math.sqrt(delta_x*delta_x + delta_y*delta_y) | |
| Math.acos(cos_alpha) * ((delta_y > 0) ? 1 : -1 ) | |
| ] |
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