dd0b86b6d9
git-svn-id: http://svn.openlayers.org/tags/openlayers/release-2.5-rc1@4347 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
/* Copyright (c) 2006-2007 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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* @requires OpenLayers/Geometry/MultiPoint.js
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*
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* Class: OpenLayers.Geometry.Curve
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* A Curve is a MultiPoint, whose points are assumed to be connected. To
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* this end, we provide a "getLength()" function, which iterates through
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* the points, summing the distances between them.
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*
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* Inherits:
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* - <OpenLayers.Geometry.MultiPoint>
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*/
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OpenLayers.Geometry.Curve = OpenLayers.Class(OpenLayers.Geometry.MultiPoint, {
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/**
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* Property: componentTypes
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* {Array(String)} An array of class names representing the types of
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* components that the collection can include. A null
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* value means the component types are not restricted.
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*/
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componentTypes: ["OpenLayers.Geometry.Point"],
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/**
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* Constructor: OpenLayers.Geometry.Curve
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*
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* Parameters:
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* point - {Array(<OpenLayers.Geometry.Point>)}
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*/
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initialize: function(points) {
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OpenLayers.Geometry.MultiPoint.prototype.initialize.apply(this,
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arguments);
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},
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/**
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* APIMethod: getLength
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*
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* Returns:
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* {Float} The length of the curve
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*/
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getLength: function() {
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var length = 0.0;
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if ( this.components && (this.components.length > 1)) {
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for(var i=1; i < this.components.length; i++) {
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length += this.components[i-1].distanceTo(this.components[i]);
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}
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}
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return length;
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},
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CLASS_NAME: "OpenLayers.Geometry.Curve"
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});
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