test whether a point is inside a triangle
npm install point-in-triangle
Test whether a point is inside a triangle, using barycentric coordinates and this algorithm from BlackPawn.
``js
var inside = require('point-in-triangle')
var triangle = [ [25, 10], [100, 250], [40, 40] ]
console.log(inside([25, 25], triangle))
`
You may also be interested in:
- triangle-circle-collision
- line-circle-collision
- point-circle-collision
- is-clockwise
#### inside(point, triangle)
Returns true if the point [x, y] is inside the triangle [ [x1,y1], [x2,y2], [x3,y3] ]`, false otherwise.
MIT, see LICENSE.md for details.