1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for * full list of contributors). Published under the Clear BSD license. * See http://svn.openlayers.org/trunk/openlayers/license.txt for the * full text of the license. */ /** * @requires OpenLayers/Format/GML/Base.js */ /** * Class: OpenLayers.Format.GML.v2 * Parses GML version 2. * * Inherits from: * - <OpenLayers.Format.GML.Base> */ OpenLayers.Format.GML.v2 = OpenLayers.Class(OpenLayers.Format.GML.Base, { /** * Property: schemaLocation * {String} Schema location for a particular minor version. */ schemaLocation: "http://www.opengis.net/gml http://schemas.opengis.net/gml/2.1.2/feature.xsd", /** * Constructor: OpenLayers.Format.GML.v2 * Create a parser for GML v2. * * Parameters: * options - {Object} An optional object whose properties will be set on * this instance. * * Valid options properties: * featureType - {String} Local (without prefix) feature typeName (required). * featureNS - {String} Feature namespace (required). * geometryName - {String} Geometry element name. */ initialize: function(options) { OpenLayers.Format.GML.Base.prototype.initialize.apply(this, [options]); }, /** * Property: readers * Contains public functions, grouped by namespace prefix, that will * be applied when a namespaced node is found matching the function * name. The function will be applied in the scope of this parser * with two arguments: the node being read and a context object passed * from the parent. */ readers: { "gml": OpenLayers.Util.applyDefaults({ "outerBoundaryIs": function(node, container) { var obj = {}; this.readChildNodes(node, obj); container.outer = obj.components[0]; }, "innerBoundaryIs": function(node, container) { var obj = {}; this.readChildNodes(node, obj); container.inner.push(obj.components[0]); }, "Box": function(node, container) { var obj = {}; this.readChildNodes(node, obj); if(!container.components) { container.components = []; } var min = obj.points[0]; var max = obj.points[1]; container.components.push( new OpenLayers.Bounds(min.x, min.y, max.x, max.y) ); } }, OpenLayers.Format.GML.Base.prototype.readers["gml"]), "feature": OpenLayers.Format.GML.Base.prototype.readers["feature"], "wfs": OpenLayers.Format.GML.Base.prototype.readers["wfs"] }, /** * Method: write * * Parameters: * features - {Array(<OpenLayers.Feature.Vector>) | OpenLayers.Feature.Vector} * An array of features or a single feature. * * Returns: * {String} Given an array of features, a doc with a gml:featureMembers * element will be returned. Given a single feature, a doc with a * gml:featureMember element will be returned. */ write: function(features) { var name; if(features instanceof Array) { // GML2 only has abstract feature collections // wfs provides a feature collection from a well-known schema name = "wfs:FeatureCollection"; } else { name = "gml:featureMember"; } var root = this.writeNode(name, features); this.setAttributeNS( root, this.namespaces["xsi"], "xsi:schemaLocation", this.schemaLocation ); return OpenLayers.Format.XML.prototype.write.apply(this, [root]); }, /** * Property: writers * As a compliment to the readers property, this structure contains public * writing functions grouped by namespace alias and named like the * node names they produce. */ writers: { "gml": OpenLayers.Util.applyDefaults({ "Point": function(geometry) { var node = this.createElementNSPlus("gml:Point"); this.writeNode("coordinates", [geometry], node); return node; }, "coordinates": function(points) { var numPoints = points.length; var parts = new Array(numPoints); var point; for(var i=0; i<numPoints; ++i) { point = points[i]; if(this.xy) { parts[i] = point.x + "," + point.y; } else { parts[i] = point.y + "," + point.x; } if(point.z != undefined) { // allow null or undefined parts[i] += "," + point.z; } } return this.createElementNSPlus("gml:coordinates", { attributes: { decimal: ".", cs: ",", ts: " " }, value: (numPoints == 1) ? parts[0] : parts.join(" ") }); }, "LineString": function(geometry) { var node = this.createElementNSPlus("gml:LineString"); this.writeNode("coordinates", geometry.components, node); return node; }, "Polygon": function(geometry) { var node = this.createElementNSPlus("gml:Polygon"); this.writeNode("outerBoundaryIs", geometry.components[0], node); for(var i=1; i<geometry.components.length; ++i) { this.writeNode( "innerBoundaryIs", geometry.components[i], node ); } return node; }, "outerBoundaryIs": function(ring) { var node = this.createElementNSPlus("gml:outerBoundaryIs"); this.writeNode("LinearRing", ring, node); return node; }, "innerBoundaryIs": function(ring) { var node = this.createElementNSPlus("gml:innerBoundaryIs"); this.writeNode("LinearRing", ring, node); return node; }, "LinearRing": function(ring) { var node = this.createElementNSPlus("gml:LinearRing"); this.writeNode("coordinates", ring.components, node); return node; }, "Box": function(bounds) { var node = this.createElementNSPlus("gml:Box"); this.writeNode("coordinates", [ {x: bounds.left, y: bounds.bottom}, {x: bounds.right, y: bounds.top} ], node); // srsName attribute is optional for gml:Box if(this.srsName) { node.setAttribute("srsName", this.srsName); } return node; } }, OpenLayers.Format.GML.Base.prototype.writers["gml"]), "feature": OpenLayers.Format.GML.Base.prototype.writers["feature"], "wfs": OpenLayers.Format.GML.Base.prototype.writers["wfs"] }, CLASS_NAME: "OpenLayers.Format.GML.v2" }); |