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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 5681x 5681x 400x 800x 400x 800x 400x 8x | /**
* Represents a set of co-ordinates on a 2D plane
*
* @class Point
*/
class Point {
/**
* Creates an instance of Point.
* @param {number} x X position
* @param {number} y Y position
*
* @memberof Point
*/
constructor (x, y) {
/**
* @type {number}
*/
this.x = x;
/**
* @type {number}
*/
this.y = y;
}
distance(pt) {
return Math.sqrt(
Math.pow(pt.x-this.x,2)+
Math.pow(pt.y-this.y,2)
)
}
subtract(pt) {
return new Point(this.x-pt.x, this.y-pt.y)
}
magnitude() {
return Math.sqrt(this.dotProduct(this))
}
dotProduct(v) {
return this.x*v.x + this.y*v.y
}
divide(scalar) {
return new Point(this.x/scalar, this.y/scalar)
}
}
module.exports = Point;
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