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/* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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* full list of contributors). Published under the Clear BSD license. |
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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* full text of the license. */ |
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/** |
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* @requires OpenLayers/Format/GML/Base.js |
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*/ |
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/** |
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* Class: OpenLayers.Format.GML.v3 |
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* Parses GML version 3. |
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* |
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* Inherits from: |
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* - <OpenLayers.Format.GML.Base> |
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*/ |
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OpenLayers.Format.GML.v3 = OpenLayers.Class(OpenLayers.Format.GML.Base, { |
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/** |
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* Property: schemaLocation |
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* {String} Schema location for a particular minor version. The writers |
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* conform with the Simple Features Profile for GML. |
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*/ |
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schemaLocation: "http://www.opengis.net/gml http://schemas.opengis.net/gml/3.1.1/profiles/gmlsfProfile/1.0.0/gmlsf.xsd", |
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/** |
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* Property: curve |
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* {Boolean} Write gml:Curve instead of gml:LineString elements. This also |
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* affects the elements in multi-part geometries. Default is false. |
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* To write gml:Curve elements instead of gml:LineString, set curve |
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* to true in the options to the contstructor (cannot be changed after |
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* instantiation). |
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*/ |
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curve: false, |
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/** |
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* Property: multiCurve |
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* {Boolean} Write gml:MultiCurve instead of gml:MultiLineString. Since |
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* the latter is deprecated in GML 3, the default is true. To write |
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* gml:MultiLineString instead of gml:MultiCurve, set multiCurve to |
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* false in the options to the constructor (cannot be changed after |
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* instantiation). |
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*/ |
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multiCurve: true, |
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/** |
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* Property: surface |
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* {Boolean} Write gml:Surface instead of gml:Polygon elements. This also |
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* affects the elements in multi-part geometries. Default is false. |
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* To write gml:Surface elements instead of gml:Polygon, set surface |
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* to true in the options to the contstructor (cannot be changed after |
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* instantiation). |
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*/ |
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surface: false, |
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/** |
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* Property: multiSurface |
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* {Boolean} Write gml:multiSurface instead of gml:MultiPolygon. Since |
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* the latter is deprecated in GML 3, the default is true. To write |
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* gml:MultiPolygon instead of gml:multiSurface, set multiSurface to |
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* false in the options to the constructor (cannot be changed after |
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* instantiation). |
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*/ |
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multiSurface: true, |
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/** |
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* Constructor: OpenLayers.Format.GML.v3 |
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* Create a parser for GML v3. |
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* |
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* Parameters: |
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* options - {Object} An optional object whose properties will be set on |
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* this instance. |
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* |
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* Valid options properties: |
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* featureType - {String} Local (without prefix) feature typeName (required). |
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* featureNS - {String} Feature namespace (required). |
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* geometryName - {String} Geometry element name. |
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*/ |
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initialize: function(options) { |
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OpenLayers.Format.GML.Base.prototype.initialize.apply(this, [options]); |
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}, |
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/** |
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* Property: readers |
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* Contains public functions, grouped by namespace prefix, that will |
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* be applied when a namespaced node is found matching the function |
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* name. The function will be applied in the scope of this parser |
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* with two arguments: the node being read and a context object passed |
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* from the parent. |
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*/ |
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readers: { |
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"gml": OpenLayers.Util.applyDefaults({ |
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"featureMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"Curve": function(node, container) { |
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var obj = {points: []}; |
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this.readChildNodes(node, obj); |
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if(!container.components) { |
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container.components = []; |
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} |
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container.components.push( |
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new OpenLayers.Geometry.LineString(obj.points) |
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); |
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}, |
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"segments": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"LineStringSegment": function(node, container) { |
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var obj = {}; |
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this.readChildNodes(node, obj); |
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if(obj.points) { |
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Array.prototype.push.apply(container.points, obj.points); |
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} |
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}, |
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"pos": function(node, obj) { |
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var str = this.getChildValue(node).replace( |
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this.regExes.trimSpace, "" |
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); |
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var coords = str.split(this.regExes.splitSpace); |
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var point; |
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if(this.xy) { |
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point = new OpenLayers.Geometry.Point( |
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coords[0], coords[1], coords[2] |
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); |
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} else { |
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point = new OpenLayers.Geometry.Point( |
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coords[1], coords[0], coords[2] |
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); |
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} |
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obj.points = [point]; |
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}, |
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"posList": function(node, obj) { |
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var str = this.getChildValue(node).replace( |
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this.regExes.trimSpace, "" |
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); |
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var coords = str.split(this.regExes.splitSpace); |
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var dim = parseInt(node.getAttribute("dimension")) || 2; |
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var j, x, y, z; |
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var numPoints = coords.length / dim; |
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var points = new Array(numPoints); |
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for(var i=0, len=coords.length; i<len; i += dim) { |
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x = coords[i]; |
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y = coords[i+1]; |
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z = (dim == 2) ? undefined : coords[i+2]; |
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if (this.xy) { |
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points[i/dim] = new OpenLayers.Geometry.Point(x, y, z); |
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} else { |
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points[i/dim] = new OpenLayers.Geometry.Point(y, x, z); |
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} |
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} |
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obj.points = points; |
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}, |
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"Surface": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"patches": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"PolygonPatch": function(node, obj) { |
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this.readers.gml.Polygon.apply(this, [node, obj]); |
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}, |
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"exterior": function(node, container) { |
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var obj = {}; |
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this.readChildNodes(node, obj); |
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container.outer = obj.components[0]; |
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}, |
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"interior": function(node, container) { |
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var obj = {}; |
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this.readChildNodes(node, obj); |
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container.inner.push(obj.components[0]); |
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}, |
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"MultiCurve": function(node, container) { |
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var obj = {components: []}; |
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this.readChildNodes(node, obj); |
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if(obj.components.length > 0) { |
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container.components = [ |
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new OpenLayers.Geometry.MultiLineString(obj.components) |
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]; |
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} |
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}, |
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"curveMember": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"MultiSurface": function(node, container) { |
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var obj = {components: []}; |
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this.readChildNodes(node, obj); |
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if(obj.components.length > 0) { |
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container.components = [ |
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new OpenLayers.Geometry.MultiPolygon(obj.components) |
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]; |
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} |
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}, |
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"surfaceMember": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"surfaceMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"pointMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"lineStringMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"polygonMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"geometryMembers": function(node, obj) { |
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this.readChildNodes(node, obj); |
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}, |
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"Envelope": function(node, container) { |
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var obj = {points: new Array(2)}; |
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this.readChildNodes(node, obj); |
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if(!container.components) { |
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container.components = []; |
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} |
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var min = obj.points[0]; |
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var max = obj.points[1]; |
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container.components.push( |
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new OpenLayers.Bounds(min.x, min.y, max.x, max.y) |
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); |
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}, |
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"lowerCorner": function(node, container) { |
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var obj = {}; |
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this.readers.gml.pos.apply(this, [node, obj]); |
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container.points[0] = obj.points[0]; |
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}, |
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"upperCorner": function(node, container) { |
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var obj = {}; |
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this.readers.gml.pos.apply(this, [node, obj]); |
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container.points[1] = obj.points[0]; |
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} |
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}, OpenLayers.Format.GML.Base.prototype.readers["gml"]), |
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"feature": OpenLayers.Format.GML.Base.prototype.readers["feature"], |
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"wfs": OpenLayers.Format.GML.Base.prototype.readers["wfs"] |
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}, |
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/** |
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* Method: write |
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* |
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* Parameters: |
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* features - {Array(<OpenLayers.Feature.Vector>) | OpenLayers.Feature.Vector} |
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* An array of features or a single feature. |
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* |
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* Returns: |
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* {String} Given an array of features, a doc with a gml:featureMembers |
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* element will be returned. Given a single feature, a doc with a |
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* gml:featureMember element will be returned. |
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*/ |
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write: function(features) { |
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var name; |
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if(features instanceof Array) { |
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name = "featureMembers"; |
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} else { |
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name = "featureMember"; |
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} |
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var root = this.writeNode("gml:" + name, features); |
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this.setAttributeNS( |
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root, this.namespaces["xsi"], |
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"xsi:schemaLocation", this.schemaLocation |
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); |
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return OpenLayers.Format.XML.prototype.write.apply(this, [root]); |
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}, |
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/** |
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* Property: writers |
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* As a compliment to the readers property, this structure contains public |
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* writing functions grouped by namespace alias and named like the |
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* node names they produce. |
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*/ |
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writers: { |
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"gml": OpenLayers.Util.applyDefaults({ |
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"featureMembers": function(features) { |
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var node = this.createElementNSPlus("gml:featureMembers"); |
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for(var i=0, len=features.length; i<len; ++i) { |
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this.writeNode("feature:_typeName", features[i], node); |
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} |
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return node; |
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}, |
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"Point": function(geometry) { |
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var node = this.createElementNSPlus("gml:Point"); |
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this.writeNode("pos", geometry, node); |
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return node; |
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}, |
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"pos": function(point) { |
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// only 2d for simple features profile |
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var pos = (this.xy) ? |
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(point.x + " " + point.y) : (point.y + " " + point.x); |
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return this.createElementNSPlus("gml:pos", { |
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value: pos |
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}); |
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}, |
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"LineString": function(geometry) { |
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var node = this.createElementNSPlus("gml:LineString"); |
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this.writeNode("posList", geometry.components, node); |
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return node; |
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}, |
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"Curve": function(geometry) { |
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var node = this.createElementNSPlus("gml:Curve"); |
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this.writeNode("segments", geometry, node); |
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return node; |
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}, |
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"segments": function(geometry) { |
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var node = this.createElementNSPlus("gml:segments"); |
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this.writeNode("LineStringSegment", geometry, node); |
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return node; |
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}, |
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"LineStringSegment": function(geometry) { |
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var node = this.createElementNSPlus("gml:LineStringSegment"); |
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this.writeNode("posList", geometry.components, node); |
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return node; |
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}, |
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"posList": function(points) { |
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// only 2d for simple features profile |
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var len = points.length; |
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var parts = new Array(len); |
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var point; |
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for(var i=0; i<len; ++i) { |
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point = points[i]; |
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if(this.xy) { |
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parts[i] = point.x + " " + point.y; |
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} else { |
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parts[i] = point.y + " " + point.x; |
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} |
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} |
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return this.createElementNSPlus("gml:posList", { |
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value: parts.join(" ") |
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}); |
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}, |
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"Surface": function(geometry) { |
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var node = this.createElementNSPlus("gml:Surface"); |
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this.writeNode("patches", geometry, node); |
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return node; |
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}, |
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"patches": function(geometry) { |
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var node = this.createElementNSPlus("gml:patches"); |
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this.writeNode("PolygonPatch", geometry, node); |
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return node; |
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}, |
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"PolygonPatch": function(geometry) { |
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var node = this.createElementNSPlus("gml:PolygonPatch", { |
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attributes: {interpolation: "planar"} |
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}); |
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this.writeNode("exterior", geometry.components[0], node); |
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for(var i=1, len=geometry.components.length; i<len; ++i) { |
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this.writeNode( |
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"interior", geometry.components[i], node |
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); |
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} |
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return node; |
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}, |
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"Polygon": function(geometry) { |
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var node = this.createElementNSPlus("gml:Polygon"); |