419abc8b4a
git-svn-id: http://svn.openlayers.org/tags/openlayers/release-2.4@3198 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
110 lines
2.8 KiB
JavaScript
110 lines
2.8 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/release-license.txt
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* for the full text of the license. */
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/**
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* @class
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*
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* @requires OpenLayers/Geometry.js
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*/
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OpenLayers.Geometry.Point = OpenLayers.Class.create();
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OpenLayers.Geometry.Point.prototype =
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OpenLayers.Class.inherit(OpenLayers.Geometry, {
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/** @type float */
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x: null,
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/** @type float */
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y: null,
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/**
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* @constructor
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*
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* @param {float} x
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* @param {float} y
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*/
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initialize: function(x, y) {
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OpenLayers.Geometry.prototype.initialize.apply(this, arguments);
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this.x = parseFloat(x);
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this.y = parseFloat(y);
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},
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/**
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* @returns An exact clone of this OpenLayers.Geometry.Point
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* @type OpenLayers.Geometry.Point
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*/
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clone: function(obj) {
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if (obj == null) {
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obj = new OpenLayers.Geometry.Point(this.x, this.y);
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}
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// catch any randomly tagged-on properties
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OpenLayers.Util.applyDefaults(obj, this);
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return obj;
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},
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/** Create a new Bounds based on the lon/lat
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*
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*/
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calculateBounds: function () {
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this.bounds = new OpenLayers.Bounds(this.x, this.y,
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this.x, this.y);
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},
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/**
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* @param {OpenLayers.Geometry.Point} point
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*/
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distanceTo: function(point) {
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var distance = 0.0;
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if ( (this.x != null) && (this.y != null) &&
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(point != null) && (point.x != null) && (point.y != null) ) {
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var dx2 = Math.pow(this.x - point.x, 2);
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var dy2 = Math.pow(this.y - point.y, 2);
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distance = Math.sqrt( dx2 + dy2 );
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}
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return distance;
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},
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/**
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* @param {OpenLayers.Geometry} xy
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* @returns Boolean value indicating whether the passed-in
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* OpenLayers.Geometryobject has the same components as this
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* note that if ll passed in is null, returns false
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*
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* @type bool
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*/
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equals:function(geom) {
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var equals = false;
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if (geom != null) {
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equals = ((this.x == geom.x && this.y == geom.y) ||
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(isNaN(this.x) && isNaN(this.y) && isNaN(geom.x) && isNaN(geom.y)));
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}
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return equals;
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},
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/**
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* @return Shortened String representation of Point object.
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* (ex. <i>"5, 42"</i>)
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* @type String
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*/
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toShortString: function() {
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return (this.x + ", " + this.y);
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},
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/**
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* Moves a point in place
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* @param {Float} x
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* @param {Float} y
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*/
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move: function(x, y) {
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this.x = this.x + x;
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this.y = this.y + y;
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Geometry.Point"
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});
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