96 lines
2.8 KiB
JavaScript
96 lines
2.8 KiB
JavaScript
goog.provide("goog.math.Coordinate");
|
|
goog.require("goog.math");
|
|
goog.math.Coordinate = function(opt_x, opt_y) {
|
|
this.x = opt_x !== undefined ? opt_x : 0;
|
|
this.y = opt_y !== undefined ? opt_y : 0;
|
|
};
|
|
goog.math.Coordinate.prototype.clone = function() {
|
|
return new goog.math.Coordinate(this.x, this.y);
|
|
};
|
|
if (goog.DEBUG) {
|
|
goog.math.Coordinate.prototype.toString = function() {
|
|
return "(" + this.x + ", " + this.y + ")";
|
|
};
|
|
}
|
|
goog.math.Coordinate.prototype.equals = function(other) {
|
|
return other instanceof goog.math.Coordinate && goog.math.Coordinate.equals(this, other);
|
|
};
|
|
goog.math.Coordinate.equals = function(a, b) {
|
|
if (a == b) {
|
|
return true;
|
|
}
|
|
if (!a || !b) {
|
|
return false;
|
|
}
|
|
return a.x == b.x && a.y == b.y;
|
|
};
|
|
goog.math.Coordinate.distance = function(a, b) {
|
|
var dx = a.x - b.x;
|
|
var dy = a.y - b.y;
|
|
return Math.sqrt(dx * dx + dy * dy);
|
|
};
|
|
goog.math.Coordinate.magnitude = function(a) {
|
|
return Math.sqrt(a.x * a.x + a.y * a.y);
|
|
};
|
|
goog.math.Coordinate.azimuth = function(a) {
|
|
return goog.math.angle(0, 0, a.x, a.y);
|
|
};
|
|
goog.math.Coordinate.squaredDistance = function(a, b) {
|
|
var dx = a.x - b.x;
|
|
var dy = a.y - b.y;
|
|
return dx * dx + dy * dy;
|
|
};
|
|
goog.math.Coordinate.difference = function(a, b) {
|
|
return new goog.math.Coordinate(a.x - b.x, a.y - b.y);
|
|
};
|
|
goog.math.Coordinate.sum = function(a, b) {
|
|
return new goog.math.Coordinate(a.x + b.x, a.y + b.y);
|
|
};
|
|
goog.math.Coordinate.prototype.ceil = function() {
|
|
this.x = Math.ceil(this.x);
|
|
this.y = Math.ceil(this.y);
|
|
return this;
|
|
};
|
|
goog.math.Coordinate.prototype.floor = function() {
|
|
this.x = Math.floor(this.x);
|
|
this.y = Math.floor(this.y);
|
|
return this;
|
|
};
|
|
goog.math.Coordinate.prototype.round = function() {
|
|
this.x = Math.round(this.x);
|
|
this.y = Math.round(this.y);
|
|
return this;
|
|
};
|
|
goog.math.Coordinate.prototype.translate = function(tx, opt_ty) {
|
|
if (tx instanceof goog.math.Coordinate) {
|
|
this.x += tx.x;
|
|
this.y += tx.y;
|
|
} else {
|
|
this.x += Number(tx);
|
|
if (typeof opt_ty === "number") {
|
|
this.y += opt_ty;
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
goog.math.Coordinate.prototype.scale = function(sx, opt_sy) {
|
|
var sy = typeof opt_sy === "number" ? opt_sy : sx;
|
|
this.x *= sx;
|
|
this.y *= sy;
|
|
return this;
|
|
};
|
|
goog.math.Coordinate.prototype.rotateRadians = function(radians, opt_center) {
|
|
var center = opt_center || new goog.math.Coordinate(0, 0);
|
|
var x = this.x;
|
|
var y = this.y;
|
|
var cos = Math.cos(radians);
|
|
var sin = Math.sin(radians);
|
|
this.x = (x - center.x) * cos - (y - center.y) * sin + center.x;
|
|
this.y = (x - center.x) * sin + (y - center.y) * cos + center.y;
|
|
};
|
|
goog.math.Coordinate.prototype.rotateDegrees = function(degrees, opt_center) {
|
|
this.rotateRadians(goog.math.toRadians(degrees), opt_center);
|
|
};
|
|
|
|
//# sourceMappingURL=goog.math.coordinate.js.map
|