66 lines
1.3 KiB
JavaScript
66 lines
1.3 KiB
JavaScript
/*
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* L.Point represents a point with x and y coordinates.
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*/
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L.Point = function(/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
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this.x = (round ? Math.round(x) : x);
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this.y = (round ? Math.round(y) : y);
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};
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L.Point.prototype = {
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add: function(point) {
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return this.clone()._add(point);
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},
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_add: function(point) {
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this.x += point.x;
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this.y += point.y;
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return this;
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},
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subtract: function(point) {
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return this.clone()._subtract(point);
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},
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// destructive subtract (faster)
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_subtract: function(point) {
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this.x -= point.x;
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this.y -= point.y;
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return this;
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},
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divideBy: function(num, round) {
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return new L.Point(this.x/num, this.y/num, round);
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},
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multiplyBy: function(num) {
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return new L.Point(this.x * num, this.y * num);
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},
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distanceTo: function(point) {
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var x = point.x - this.x,
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y = point.y - this.y;
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return Math.sqrt(x*x + y*y);
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},
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round: function() {
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return this.clone()._round();
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},
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// destructive round
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_round: function() {
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this.x = Math.round(this.x);
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this.y = Math.round(this.y);
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return this;
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},
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clone: function() {
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return new L.Point(this.x, this.y);
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},
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toString: function() {
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return 'Point(' +
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L.Util.formatNum(this.x) + ', ' +
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L.Util.formatNum(this.y) + ')';
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}
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}; |