var ContainsArray = function (triangle, points, returnFirst, out){ 
if (returnFirst === undefined) { 
returnFirst = false ; 
} 
if (out === undefined) { 
out = [] ; 
} 
var v0x = triangle.x3 - triangle.x1; 
var v0y = triangle.y3 - triangle.y1; 
var v1x = triangle.x2 - triangle.x1; 
var v1y = triangle.y2 - triangle.y1; 
var dot00 = (v0x * v0x) + (v0y * v0y); 
var dot01 = (v0x * v1x) + (v0y * v1y); 
var dot11 = (v1x * v1x) + (v1y * v1y); 
var b = ((dot00 * dot11) - (dot01 * dot01)); 
var inv = (b === 0)? 0: (1 / b); 
var u; 
var v; 
var v2x; 
var v2y; 
var dot02; 
var dot12; 
var x1 = triangle.x1; 
var y1 = triangle.y1; 
for (var i = 0; 
i < _AN_Read_length('length', points); i++ ){ 
v2x = points[i].x - x1; 
v2y = points[i].y - y1; 
dot02 = (v0x * v2x) + (v0y * v2y); 
dot12 = (v1x * v2x) + (v1y * v2y); 
u = ((dot11 * dot02) - (dot01 * dot12)) * inv; 
v = ((dot00 * dot12) - (dot01 * dot02)) * inv; 
if (u >= 0 && v >= 0 && (u + v < 1)) { 
out.push({ 
x: points[i].x,
y: points[i].y}
); 
if (returnFirst) { 
break ; 
} 
} 
} 
return out; 
} 
; 
module.exports = ContainsArray;