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