[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | /** |
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| 7 | * @requires OpenLayers/Format/XML.js |
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| 8 | * @requires OpenLayers/Geometry/Polygon.js |
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| 9 | * @requires OpenLayers/Geometry/Point.js |
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| 10 | * @requires OpenLayers/Geometry/MultiPolygon.js |
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| 11 | * @requires OpenLayers/Geometry/LinearRing.js |
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| 12 | */ |
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| 13 | |
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| 14 | /** |
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| 15 | * Class: OpenLayers.Format.ArcXML |
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| 16 | * Read/Wite ArcXML. Create a new instance with the <OpenLayers.Format.ArcXML> |
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| 17 | * constructor. |
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| 18 | * |
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| 19 | * Inherits from: |
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| 20 | * - <OpenLayers.Format> |
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| 21 | */ |
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| 22 | OpenLayers.Format.ArcXML = OpenLayers.Class(OpenLayers.Format.XML, { |
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| 23 | |
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| 24 | /** |
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| 25 | * Property: fontStyleKeys |
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| 26 | * {Array} List of keys used in font styling. |
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| 27 | */ |
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| 28 | fontStyleKeys: [ |
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| 29 | 'antialiasing', 'blockout', 'font', 'fontcolor','fontsize', 'fontstyle', |
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| 30 | 'glowing', 'interval', 'outline', 'printmode', 'shadow', 'transparency' |
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| 31 | ], |
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| 32 | |
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| 33 | /** |
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| 34 | * Property: request |
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| 35 | * A get_image request destined for an ArcIMS server. |
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| 36 | */ |
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| 37 | request: null, |
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| 38 | |
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| 39 | /** |
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| 40 | * Property: response |
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| 41 | * A parsed response from an ArcIMS server. |
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| 42 | */ |
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| 43 | response: null, |
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| 44 | |
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| 45 | /** |
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| 46 | * Constructor: OpenLayers.Format.ArcXML |
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| 47 | * Create a new parser/writer for ArcXML. Create an instance of this class |
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| 48 | * to begin authoring a request to an ArcIMS service. This is used |
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| 49 | * primarily by the ArcIMS layer, but could be used to do other wild |
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| 50 | * stuff, like geocoding. |
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| 51 | * |
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| 52 | * Parameters: |
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| 53 | * options - {Object} An optional object whose properties will be set on |
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| 54 | * this instance. |
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| 55 | */ |
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| 56 | initialize: function(options) { |
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| 57 | this.request = new OpenLayers.Format.ArcXML.Request(); |
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| 58 | this.response = new OpenLayers.Format.ArcXML.Response(); |
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| 59 | |
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| 60 | if (options) { |
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| 61 | if (options.requesttype == "feature") { |
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| 62 | this.request.get_image = null; |
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| 63 | |
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| 64 | var qry = this.request.get_feature.query; |
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| 65 | this.addCoordSys(qry.featurecoordsys, options.featureCoordSys); |
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| 66 | this.addCoordSys(qry.filtercoordsys, options.filterCoordSys); |
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| 67 | |
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| 68 | if (options.polygon) { |
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| 69 | qry.isspatial = true; |
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| 70 | qry.spatialfilter.polygon = options.polygon; |
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| 71 | } else if (options.envelope) { |
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| 72 | qry.isspatial = true; |
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| 73 | qry.spatialfilter.envelope = {minx:0, miny:0, maxx:0, maxy:0}; |
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| 74 | this.parseEnvelope(qry.spatialfilter.envelope, options.envelope); |
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| 75 | } |
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| 76 | } else if (options.requesttype == "image") { |
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| 77 | this.request.get_feature = null; |
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| 78 | |
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| 79 | var props = this.request.get_image.properties; |
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| 80 | this.parseEnvelope(props.envelope, options.envelope); |
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| 81 | |
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| 82 | this.addLayers(props.layerlist, options.layers); |
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| 83 | this.addImageSize(props.imagesize, options.tileSize); |
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| 84 | this.addCoordSys(props.featurecoordsys, options.featureCoordSys); |
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| 85 | this.addCoordSys(props.filtercoordsys, options.filterCoordSys); |
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| 86 | } else { |
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| 87 | // if an arcxml object is being created with no request type, it is |
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| 88 | // probably going to consume a response, so do not throw an error if |
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| 89 | // the requesttype is not defined |
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| 90 | this.request = null; |
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| 91 | } |
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| 92 | } |
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| 93 | |
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| 94 | OpenLayers.Format.XML.prototype.initialize.apply(this, [options]); |
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| 95 | }, |
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| 96 | |
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| 97 | /** |
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| 98 | * Method: parseEnvelope |
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| 99 | * Parse an array of coordinates into an ArcXML envelope structure. |
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| 100 | * |
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| 101 | * Parameters: |
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| 102 | * env - {Object} An envelope object that will contain the parsed coordinates. |
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| 103 | * arr - {Array(double)} An array of coordinates in the order: [ minx, miny, maxx, maxy ] |
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| 104 | */ |
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| 105 | parseEnvelope: function(env, arr) { |
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| 106 | if (arr && arr.length == 4) { |
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| 107 | env.minx = arr[0]; |
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| 108 | env.miny = arr[1]; |
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| 109 | env.maxx = arr[2]; |
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| 110 | env.maxy = arr[3]; |
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| 111 | } |
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| 112 | }, |
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| 113 | |
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| 114 | /** |
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| 115 | * Method: addLayers |
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| 116 | * Add a collection of layers to another collection of layers. Each layer in the list is tuple of |
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| 117 | * { id, visible }. These layer collections represent the |
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| 118 | * /ARCXML/REQUEST/get_image/PROPERTIES/LAYERLIST/LAYERDEF items in ArcXML |
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| 119 | * |
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| 120 | * TODO: Add support for dynamic layer rendering. |
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| 121 | * |
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| 122 | * Parameters: |
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| 123 | * ll - {Array({id,visible})} A list of layer definitions. |
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| 124 | * lyrs - {Array({id,visible})} A list of layer definitions. |
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| 125 | */ |
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| 126 | addLayers: function(ll, lyrs) { |
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| 127 | for(var lind = 0, len=lyrs.length; lind < len; lind++) { |
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| 128 | ll.push(lyrs[lind]); |
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| 129 | } |
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| 130 | }, |
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| 131 | |
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| 132 | /** |
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| 133 | * Method: addImageSize |
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| 134 | * Set the size of the requested image. |
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| 135 | * |
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| 136 | * Parameters: |
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| 137 | * imsize - {Object} An ArcXML imagesize object. |
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| 138 | * olsize - {OpenLayers.Size} The image size to set. |
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| 139 | */ |
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| 140 | addImageSize: function(imsize, olsize) { |
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| 141 | if (olsize !== null) { |
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| 142 | imsize.width = olsize.w; |
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| 143 | imsize.height = olsize.h; |
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| 144 | imsize.printwidth = olsize.w; |
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| 145 | imsize.printheight = olsize.h; |
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| 146 | } |
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| 147 | }, |
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| 148 | |
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| 149 | /** |
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| 150 | * Method: addCoordSys |
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| 151 | * Add the coordinate system information to an object. The object may be |
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| 152 | * |
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| 153 | * Parameters: |
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| 154 | * featOrFilt - {Object} A featurecoordsys or filtercoordsys ArcXML structure. |
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| 155 | * fsys - {String} or {OpenLayers.Projection} or {filtercoordsys} or |
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| 156 | * {featurecoordsys} A projection representation. If it's a {String}, |
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| 157 | * the value is assumed to be the SRID. If it's a {OpenLayers.Projection} |
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| 158 | * AND Proj4js is available, the projection number and name are extracted |
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| 159 | * from there. If it's a filter or feature ArcXML structure, it is copied. |
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| 160 | */ |
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| 161 | addCoordSys: function(featOrFilt, fsys) { |
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| 162 | if (typeof fsys == "string") { |
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| 163 | featOrFilt.id = parseInt(fsys); |
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| 164 | featOrFilt.string = fsys; |
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| 165 | } |
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| 166 | // is this a proj4js instance? |
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| 167 | else if (typeof fsys == "object" && fsys.proj !== null){ |
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| 168 | featOrFilt.id = fsys.proj.srsProjNumber; |
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| 169 | featOrFilt.string = fsys.proj.srsCode; |
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| 170 | } else { |
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| 171 | featOrFilt = fsys; |
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| 172 | } |
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| 173 | }, |
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| 174 | |
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| 175 | /** |
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| 176 | * APIMethod: iserror |
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| 177 | * Check to see if the response from the server was an error. |
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| 178 | * |
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| 179 | * Parameters: |
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| 180 | * data - {String} or {DOMElement} data to read/parse. If nothing is supplied, |
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| 181 | * the current response is examined. |
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| 182 | * |
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| 183 | * Returns: |
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| 184 | * {Boolean} true if the response was an error. |
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| 185 | */ |
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| 186 | iserror: function(data) { |
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| 187 | var ret = null; |
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| 188 | |
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| 189 | if (!data) { |
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| 190 | ret = (this.response.error !== ''); |
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| 191 | } else { |
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| 192 | data = OpenLayers.Format.XML.prototype.read.apply(this, [data]); |
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| 193 | var errorNodes = data.documentElement.getElementsByTagName("ERROR"); |
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| 194 | ret = (errorNodes !== null && errorNodes.length > 0); |
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| 195 | } |
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| 196 | |
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| 197 | return ret; |
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| 198 | }, |
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| 199 | |
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| 200 | /** |
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| 201 | * APIMethod: read |
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| 202 | * Read data from a string, and return an response. |
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| 203 | * |
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| 204 | * Parameters: |
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| 205 | * data - {String} or {DOMElement} data to read/parse. |
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| 206 | * |
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| 207 | * Returns: |
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| 208 | * {OpenLayers.Format.ArcXML.Response} An ArcXML response. Note that this response |
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| 209 | * data may change in the future. |
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| 210 | */ |
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| 211 | read: function(data) { |
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| 212 | if(typeof data == "string") { |
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| 213 | data = OpenLayers.Format.XML.prototype.read.apply(this, [data]); |
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| 214 | } |
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| 215 | |
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| 216 | var arcNode = null; |
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| 217 | if (data && data.documentElement) { |
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| 218 | if(data.documentElement.nodeName == "ARCXML") { |
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| 219 | arcNode = data.documentElement; |
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| 220 | } else { |
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| 221 | arcNode = data.documentElement.getElementsByTagName("ARCXML")[0]; |
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| 222 | } |
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| 223 | } |
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| 224 | |
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| 225 | // in Safari, arcNode will be there but will have a child named |
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| 226 | // parsererror |
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| 227 | if (!arcNode || arcNode.firstChild.nodeName === 'parsererror') { |
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| 228 | var error, source; |
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| 229 | try { |
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| 230 | error = data.firstChild.nodeValue; |
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| 231 | source = data.firstChild.childNodes[1].firstChild.nodeValue; |
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| 232 | } catch (err) { |
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| 233 | // pass |
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| 234 | } |
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| 235 | throw { |
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| 236 | message: "Error parsing the ArcXML request", |
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| 237 | error: error, |
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| 238 | source: source |
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| 239 | }; |
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| 240 | } |
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| 241 | |
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| 242 | var response = this.parseResponse(arcNode); |
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| 243 | return response; |
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| 244 | }, |
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| 245 | |
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| 246 | /** |
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| 247 | * APIMethod: write |
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| 248 | * Generate an ArcXml document string for sending to an ArcIMS server. |
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| 249 | * |
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| 250 | * Returns: |
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| 251 | * {String} A string representing the ArcXML document request. |
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| 252 | */ |
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| 253 | write: function(request) { |
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| 254 | if (!request) { |
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| 255 | request = this.request; |
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| 256 | } |
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| 257 | var root = this.createElementNS("", "ARCXML"); |
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| 258 | root.setAttribute("version","1.1"); |
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| 259 | |
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| 260 | var reqElem = this.createElementNS("", "REQUEST"); |
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| 261 | |
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| 262 | if (request.get_image != null) { |
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| 263 | var getElem = this.createElementNS("", "GET_IMAGE"); |
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| 264 | reqElem.appendChild(getElem); |
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| 265 | |
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| 266 | var propElem = this.createElementNS("", "PROPERTIES"); |
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| 267 | getElem.appendChild(propElem); |
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| 268 | |
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| 269 | var props = request.get_image.properties; |
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| 270 | if (props.featurecoordsys != null) { |
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| 271 | var feat = this.createElementNS("", "FEATURECOORDSYS"); |
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| 272 | propElem.appendChild(feat); |
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| 273 | |
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| 274 | if (props.featurecoordsys.id === 0) { |
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| 275 | feat.setAttribute("string", props.featurecoordsys['string']); |
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| 276 | } |
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| 277 | else { |
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| 278 | feat.setAttribute("id", props.featurecoordsys.id); |
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| 279 | } |
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| 280 | } |
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| 281 | |
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| 282 | if (props.filtercoordsys != null) { |
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| 283 | var filt = this.createElementNS("", "FILTERCOORDSYS"); |
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| 284 | propElem.appendChild(filt); |
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| 285 | |
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| 286 | if (props.filtercoordsys.id === 0) { |
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| 287 | filt.setAttribute("string", props.filtercoordsys.string); |
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| 288 | } |
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| 289 | else { |
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| 290 | filt.setAttribute("id", props.filtercoordsys.id); |
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| 291 | } |
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| 292 | } |
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| 293 | |
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| 294 | if (props.envelope != null) { |
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| 295 | var env = this.createElementNS("", "ENVELOPE"); |
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| 296 | propElem.appendChild(env); |
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| 297 | |
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| 298 | env.setAttribute("minx", props.envelope.minx); |
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| 299 | env.setAttribute("miny", props.envelope.miny); |
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| 300 | env.setAttribute("maxx", props.envelope.maxx); |
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| 301 | env.setAttribute("maxy", props.envelope.maxy); |
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| 302 | } |
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| 303 | |
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| 304 | var imagesz = this.createElementNS("", "IMAGESIZE"); |
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| 305 | propElem.appendChild(imagesz); |
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| 306 | |
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| 307 | imagesz.setAttribute("height", props.imagesize.height); |
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| 308 | imagesz.setAttribute("width", props.imagesize.width); |
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| 309 | |
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| 310 | if (props.imagesize.height != props.imagesize.printheight || |
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| 311 | props.imagesize.width != props.imagesize.printwidth) { |
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| 312 | imagesz.setAttribute("printheight", props.imagesize.printheight); |
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| 313 | imagesz.setArrtibute("printwidth", props.imagesize.printwidth); |
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| 314 | } |
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| 315 | |
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| 316 | if (props.background != null) { |
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| 317 | var backgrnd = this.createElementNS("", "BACKGROUND"); |
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| 318 | propElem.appendChild(backgrnd); |
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| 319 | |
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| 320 | backgrnd.setAttribute("color", |
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| 321 | props.background.color.r + "," + |
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| 322 | props.background.color.g + "," + |
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| 323 | props.background.color.b); |
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| 324 | |
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| 325 | if (props.background.transcolor !== null) { |
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| 326 | backgrnd.setAttribute("transcolor", |
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| 327 | props.background.transcolor.r + "," + |
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| 328 | props.background.transcolor.g + "," + |
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| 329 | props.background.transcolor.b); |
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| 330 | } |
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| 331 | } |
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| 332 | |
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| 333 | if (props.layerlist != null && props.layerlist.length > 0) { |
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| 334 | var layerlst = this.createElementNS("", "LAYERLIST"); |
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| 335 | propElem.appendChild(layerlst); |
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| 336 | |
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| 337 | for (var ld = 0; ld < props.layerlist.length; ld++) { |
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| 338 | var ldef = this.createElementNS("", "LAYERDEF"); |
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| 339 | layerlst.appendChild(ldef); |
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| 340 | |
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| 341 | ldef.setAttribute("id", props.layerlist[ld].id); |
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| 342 | ldef.setAttribute("visible", props.layerlist[ld].visible); |
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| 343 | |
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| 344 | if (typeof props.layerlist[ld].query == "object") { |
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| 345 | var query = props.layerlist[ld].query; |
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| 346 | |
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| 347 | if (query.where.length < 0) { |
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| 348 | continue; |
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| 349 | } |
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| 350 | |
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| 351 | var queryElem = null; |
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| 352 | if (typeof query.spatialfilter == "boolean" && query.spatialfilter) { |
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| 353 | // handle spatial filter madness |
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| 354 | queryElem = this.createElementNS("", "SPATIALQUERY"); |
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| 355 | } |
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| 356 | else { |
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| 357 | queryElem = this.createElementNS("", "QUERY"); |
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| 358 | } |
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| 359 | |
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| 360 | queryElem.setAttribute("where", query.where); |
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| 361 | |
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| 362 | if (typeof query.accuracy == "number" && query.accuracy > 0) { |
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| 363 | queryElem.setAttribute("accuracy", query.accuracy); |
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| 364 | } |
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| 365 | if (typeof query.featurelimit == "number" && query.featurelimit < 2000) { |
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| 366 | queryElem.setAttribute("featurelimit", query.featurelimit); |
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| 367 | } |
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| 368 | if (typeof query.subfields == "string" && query.subfields != "#ALL#") { |
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| 369 | queryElem.setAttribute("subfields", query.subfields); |
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| 370 | } |
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| 371 | if (typeof query.joinexpression == "string" && query.joinexpression.length > 0) { |
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| 372 | queryElem.setAttribute("joinexpression", query.joinexpression); |
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| 373 | } |
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| 374 | if (typeof query.jointables == "string" && query.jointables.length > 0) { |
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| 375 | queryElem.setAttribute("jointables", query.jointables); |
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| 376 | } |
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| 377 | |
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| 378 | ldef.appendChild(queryElem); |
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| 379 | } |
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| 380 | |
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| 381 | if (typeof props.layerlist[ld].renderer == "object") { |
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| 382 | this.addRenderer(ldef, props.layerlist[ld].renderer); |
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| 383 | } |
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| 384 | } |
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| 385 | } |
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| 386 | } else if (request.get_feature != null) { |
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| 387 | var getElem = this.createElementNS("", "GET_FEATURES"); |
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| 388 | getElem.setAttribute("outputmode", "newxml"); |
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| 389 | getElem.setAttribute("checkesc", "true"); |
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| 390 | |
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| 391 | if (request.get_feature.geometry) { |
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| 392 | getElem.setAttribute("geometry", request.get_feature.geometry); |
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| 393 | } |
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| 394 | else { |
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| 395 | getElem.setAttribute("geometry", "false"); |
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| 396 | } |
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| 397 | |
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| 398 | if (request.get_feature.compact) { |
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| 399 | getElem.setAttribute("compact", request.get_feature.compact); |
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| 400 | } |
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| 401 | |
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| 402 | if (request.get_feature.featurelimit == "number") { |
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| 403 | getElem.setAttribute("featurelimit", request.get_feature.featurelimit); |
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| 404 | } |
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| 405 | |
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| 406 | getElem.setAttribute("globalenvelope", "true"); |
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| 407 | reqElem.appendChild(getElem); |
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| 408 | |
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| 409 | if (request.get_feature.layer != null && request.get_feature.layer.length > 0) { |
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| 410 | var lyrElem = this.createElementNS("", "LAYER"); |
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| 411 | lyrElem.setAttribute("id", request.get_feature.layer); |
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| 412 | getElem.appendChild(lyrElem); |
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| 413 | } |
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| 414 | |
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| 415 | var fquery = request.get_feature.query; |
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| 416 | if (fquery != null) { |
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| 417 | var qElem = null; |
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| 418 | if (fquery.isspatial) { |
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| 419 | qElem = this.createElementNS("", "SPATIALQUERY"); |
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| 420 | } else { |
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| 421 | qElem = this.createElementNS("", "QUERY"); |
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| 422 | } |
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| 423 | getElem.appendChild(qElem); |
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| 424 | |
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| 425 | if (typeof fquery.accuracy == "number") { |
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| 426 | qElem.setAttribute("accuracy", fquery.accuracy); |
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| 427 | } |
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| 428 | //qElem.setAttribute("featurelimit", "5"); |
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| 429 | |
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| 430 | if (fquery.featurecoordsys != null) { |
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| 431 | var fcsElem1 = this.createElementNS("", "FEATURECOORDSYS"); |
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| 432 | |
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| 433 | if (fquery.featurecoordsys.id == 0) { |
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| 434 | fcsElem1.setAttribute("string", fquery.featurecoordsys.string); |
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| 435 | } else { |
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| 436 | fcsElem1.setAttribute("id", fquery.featurecoordsys.id); |
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| 437 | } |
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| 438 | qElem.appendChild(fcsElem1); |
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| 439 | } |
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| 440 | |
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| 441 | if (fquery.filtercoordsys != null) { |
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| 442 | var fcsElem2 = this.createElementNS("", "FILTERCOORDSYS"); |
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| 443 | |
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| 444 | if (fquery.filtercoordsys.id === 0) { |
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| 445 | fcsElem2.setAttribute("string", fquery.filtercoordsys.string); |
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| 446 | } else { |
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| 447 | fcsElem2.setAttribute("id", fquery.filtercoordsys.id); |
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| 448 | } |
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| 449 | qElem.appendChild(fcsElem2); |
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| 450 | } |
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| 451 | |
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| 452 | if (fquery.buffer > 0) { |
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| 453 | var bufElem = this.createElementNS("", "BUFFER"); |
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| 454 | bufElem.setAttribute("distance", fquery.buffer); |
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| 455 | qElem.appendChild(bufElem); |
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| 456 | } |
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| 457 | |
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| 458 | if (fquery.isspatial) { |
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| 459 | var spfElem = this.createElementNS("", "SPATIALFILTER"); |
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| 460 | spfElem.setAttribute("relation", fquery.spatialfilter.relation); |
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| 461 | qElem.appendChild(spfElem); |
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| 462 | |
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| 463 | if (fquery.spatialfilter.envelope) { |
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| 464 | var envElem = this.createElementNS("", "ENVELOPE"); |
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| 465 | envElem.setAttribute("minx", fquery.spatialfilter.envelope.minx); |
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| 466 | envElem.setAttribute("miny", fquery.spatialfilter.envelope.miny); |
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| 467 | envElem.setAttribute("maxx", fquery.spatialfilter.envelope.maxx); |
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| 468 | envElem.setAttribute("maxy", fquery.spatialfilter.envelope.maxy); |
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| 469 | spfElem.appendChild(envElem); |
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| 470 | } else if(typeof fquery.spatialfilter.polygon == "object") { |
---|
| 471 | spfElem.appendChild(this.writePolygonGeometry(fquery.spatialfilter.polygon)); |
---|
| 472 | } |
---|
| 473 | } |
---|
| 474 | |
---|
| 475 | if (fquery.where != null && fquery.where.length > 0) { |
---|
| 476 | qElem.setAttribute("where", fquery.where); |
---|
| 477 | } |
---|
| 478 | } |
---|
| 479 | } |
---|
| 480 | |
---|
| 481 | root.appendChild(reqElem); |
---|
| 482 | |
---|
| 483 | return OpenLayers.Format.XML.prototype.write.apply(this, [root]); |
---|
| 484 | }, |
---|
| 485 | |
---|
| 486 | |
---|
| 487 | addGroupRenderer: function(ldef, toprenderer) { |
---|
| 488 | var topRelem = this.createElementNS("", "GROUPRENDERER"); |
---|
| 489 | ldef.appendChild(topRelem); |
---|
| 490 | |
---|
| 491 | for (var rind = 0; rind < toprenderer.length; rind++) { |
---|
| 492 | var renderer = toprenderer[rind]; |
---|
| 493 | this.addRenderer(topRelem, renderer); |
---|
| 494 | } |
---|
| 495 | }, |
---|
| 496 | |
---|
| 497 | |
---|
| 498 | addRenderer: function(topRelem, renderer) { |
---|
| 499 | if (renderer instanceof Array) { |
---|
| 500 | this.addGroupRenderer(topRelem, renderer); |
---|
| 501 | } else { |
---|
| 502 | var renderElem = this.createElementNS("", renderer.type.toUpperCase() + "RENDERER"); |
---|
| 503 | topRelem.appendChild(renderElem); |
---|
| 504 | |
---|
| 505 | if (renderElem.tagName == "VALUEMAPRENDERER") { |
---|
| 506 | this.addValueMapRenderer(renderElem, renderer); |
---|
| 507 | } else if (renderElem.tagName == "VALUEMAPLABELRENDERER") { |
---|
| 508 | this.addValueMapLabelRenderer(renderElem, renderer); |
---|
| 509 | } else if (renderElem.tagName == "SIMPLELABELRENDERER") { |
---|
| 510 | this.addSimpleLabelRenderer(renderElem, renderer); |
---|
| 511 | } else if (renderElem.tagName == "SCALEDEPENDENTRENDERER") { |
---|
| 512 | this.addScaleDependentRenderer(renderElem, renderer); |
---|
| 513 | } |
---|
| 514 | } |
---|
| 515 | }, |
---|
| 516 | |
---|
| 517 | |
---|
| 518 | addScaleDependentRenderer: function(renderElem, renderer) { |
---|
| 519 | if (typeof renderer.lower == "string" || typeof renderer.lower == "number") { |
---|
| 520 | renderElem.setAttribute("lower", renderer.lower); |
---|
| 521 | } |
---|
| 522 | if (typeof renderer.upper == "string" || typeof renderer.upper == "number") { |
---|
| 523 | renderElem.setAttribute("upper", renderer.upper); |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | this.addRenderer(renderElem, renderer.renderer); |
---|
| 527 | }, |
---|
| 528 | |
---|
| 529 | |
---|
| 530 | addValueMapLabelRenderer: function(renderElem, renderer) { |
---|
| 531 | renderElem.setAttribute("lookupfield", renderer.lookupfield); |
---|
| 532 | renderElem.setAttribute("labelfield", renderer.labelfield); |
---|
| 533 | |
---|
| 534 | if (typeof renderer.exacts == "object") { |
---|
| 535 | for (var ext=0, extlen=renderer.exacts.length; ext<extlen; ext++) { |
---|
| 536 | var exact = renderer.exacts[ext]; |
---|
| 537 | |
---|
| 538 | var eelem = this.createElementNS("", "EXACT"); |
---|
| 539 | |
---|
| 540 | if (typeof exact.value == "string") { |
---|
| 541 | eelem.setAttribute("value", exact.value); |
---|
| 542 | } |
---|
| 543 | if (typeof exact.label == "string") { |
---|
| 544 | eelem.setAttribute("label", exact.label); |
---|
| 545 | } |
---|
| 546 | if (typeof exact.method == "string") { |
---|
| 547 | eelem.setAttribute("method", exact.method); |
---|
| 548 | } |
---|
| 549 | |
---|
| 550 | renderElem.appendChild(eelem); |
---|
| 551 | |
---|
| 552 | if (typeof exact.symbol == "object") { |
---|
| 553 | var selem = null; |
---|
| 554 | |
---|
| 555 | if (exact.symbol.type == "text") { |
---|
| 556 | selem = this.createElementNS("", "TEXTSYMBOL"); |
---|
| 557 | } |
---|
| 558 | |
---|
| 559 | if (selem != null) { |
---|
| 560 | var keys = this.fontStyleKeys; |
---|
| 561 | for (var i = 0, len = keys.length; i < len; i++) { |
---|
| 562 | var key = keys[i]; |
---|
| 563 | if (exact.symbol[key]) { |
---|
| 564 | selem.setAttribute(key, exact.symbol[key]); |
---|
| 565 | } |
---|
| 566 | } |
---|
| 567 | eelem.appendChild(selem); |
---|
| 568 | } |
---|
| 569 | } |
---|
| 570 | } // for each exact |
---|
| 571 | } |
---|
| 572 | }, |
---|
| 573 | |
---|
| 574 | addValueMapRenderer: function(renderElem, renderer) { |
---|
| 575 | renderElem.setAttribute("lookupfield", renderer.lookupfield); |
---|
| 576 | |
---|
| 577 | if (typeof renderer.ranges == "object") { |
---|
| 578 | for(var rng=0, rnglen=renderer.ranges.length; rng<rnglen; rng++) { |
---|
| 579 | var range = renderer.ranges[rng]; |
---|
| 580 | |
---|
| 581 | var relem = this.createElementNS("", "RANGE"); |
---|
| 582 | relem.setAttribute("lower", range.lower); |
---|
| 583 | relem.setAttribute("upper", range.upper); |
---|
| 584 | |
---|
| 585 | renderElem.appendChild(relem); |
---|
| 586 | |
---|
| 587 | if (typeof range.symbol == "object") { |
---|
| 588 | var selem = null; |
---|
| 589 | |
---|
| 590 | if (range.symbol.type == "simplepolygon") { |
---|
| 591 | selem = this.createElementNS("", "SIMPLEPOLYGONSYMBOL"); |
---|
| 592 | } |
---|
| 593 | |
---|
| 594 | if (selem != null) { |
---|
| 595 | if (typeof range.symbol.boundarycolor == "string") { |
---|
| 596 | selem.setAttribute("boundarycolor", range.symbol.boundarycolor); |
---|
| 597 | } |
---|
| 598 | if (typeof range.symbol.fillcolor == "string") { |
---|
| 599 | selem.setAttribute("fillcolor", range.symbol.fillcolor); |
---|
| 600 | } |
---|
| 601 | if (typeof range.symbol.filltransparency == "number") { |
---|
| 602 | selem.setAttribute("filltransparency", range.symbol.filltransparency); |
---|
| 603 | } |
---|
| 604 | relem.appendChild(selem); |
---|
| 605 | } |
---|
| 606 | } |
---|
| 607 | } // for each range |
---|
| 608 | } else if (typeof renderer.exacts == "object") { |
---|
| 609 | for (var ext=0, extlen=renderer.exacts.length; ext<extlen; ext++) { |
---|
| 610 | var exact = renderer.exacts[ext]; |
---|
| 611 | |
---|
| 612 | var eelem = this.createElementNS("", "EXACT"); |
---|
| 613 | if (typeof exact.value == "string") { |
---|
| 614 | eelem.setAttribute("value", exact.value); |
---|
| 615 | } |
---|
| 616 | if (typeof exact.label == "string") { |
---|
| 617 | eelem.setAttribute("label", exact.label); |
---|
| 618 | } |
---|
| 619 | if (typeof exact.method == "string") { |
---|
| 620 | eelem.setAttribute("method", exact.method); |
---|
| 621 | } |
---|
| 622 | |
---|
| 623 | renderElem.appendChild(eelem); |
---|
| 624 | |
---|
| 625 | if (typeof exact.symbol == "object") { |
---|
| 626 | var selem = null; |
---|
| 627 | |
---|
| 628 | if (exact.symbol.type == "simplemarker") { |
---|
| 629 | selem = this.createElementNS("", "SIMPLEMARKERSYMBOL"); |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | if (selem != null) { |
---|
| 633 | if (typeof exact.symbol.antialiasing == "string") { |
---|
| 634 | selem.setAttribute("antialiasing", exact.symbol.antialiasing); |
---|
| 635 | } |
---|
| 636 | if (typeof exact.symbol.color == "string") { |
---|
| 637 | selem.setAttribute("color", exact.symbol.color); |
---|
| 638 | } |
---|
| 639 | if (typeof exact.symbol.outline == "string") { |
---|
| 640 | selem.setAttribute("outline", exact.symbol.outline); |
---|
| 641 | } |
---|
| 642 | if (typeof exact.symbol.overlap == "string") { |
---|
| 643 | selem.setAttribute("overlap", exact.symbol.overlap); |
---|
| 644 | } |
---|
| 645 | if (typeof exact.symbol.shadow == "string") { |
---|
| 646 | selem.setAttribute("shadow", exact.symbol.shadow); |
---|
| 647 | } |
---|
| 648 | if (typeof exact.symbol.transparency == "number") { |
---|
| 649 | selem.setAttribute("transparency", exact.symbol.transparency); |
---|
| 650 | } |
---|
| 651 | //if (typeof exact.symbol.type == "string") |
---|
| 652 | // selem.setAttribute("type", exact.symbol.type); |
---|
| 653 | if (typeof exact.symbol.usecentroid == "string") { |
---|
| 654 | selem.setAttribute("usecentroid", exact.symbol.usecentroid); |
---|
| 655 | } |
---|
| 656 | if (typeof exact.symbol.width == "number") { |
---|
| 657 | selem.setAttribute("width", exact.symbol.width); |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | eelem.appendChild(selem); |
---|
| 661 | } |
---|
| 662 | } |
---|
| 663 | } // for each exact |
---|
| 664 | } |
---|
| 665 | }, |
---|
| 666 | |
---|
| 667 | |
---|
| 668 | addSimpleLabelRenderer: function(renderElem, renderer) { |
---|
| 669 | renderElem.setAttribute("field", renderer.field); |
---|
| 670 | var keys = ['featureweight', 'howmanylabels', 'labelbufferratio', |
---|
| 671 | 'labelpriorities', 'labelweight', 'linelabelposition', |
---|
| 672 | 'rotationalangles']; |
---|
| 673 | for (var i=0, len=keys.length; i<len; i++) { |
---|
| 674 | var key = keys[i]; |
---|
| 675 | if (renderer[key]) { |
---|
| 676 | renderElem.setAttribute(key, renderer[key]); |
---|
| 677 | } |
---|
| 678 | } |
---|
| 679 | |
---|
| 680 | if (renderer.symbol.type == "text") { |
---|
| 681 | var symbol = renderer.symbol; |
---|
| 682 | var selem = this.createElementNS("", "TEXTSYMBOL"); |
---|
| 683 | renderElem.appendChild(selem); |
---|
| 684 | |
---|
| 685 | var keys = this.fontStyleKeys; |
---|
| 686 | for (var i=0, len=keys.length; i<len; i++) { |
---|
| 687 | var key = keys[i]; |
---|
| 688 | if (symbol[key]) { |
---|
| 689 | selem.setAttribute(key, renderer[key]); |
---|
| 690 | } |
---|
| 691 | } |
---|
| 692 | } |
---|
| 693 | }, |
---|
| 694 | |
---|
| 695 | writePolygonGeometry: function(polygon) { |
---|
| 696 | if (!(polygon instanceof OpenLayers.Geometry.Polygon)) { |
---|
| 697 | throw { |
---|
| 698 | message:'Cannot write polygon geometry to ArcXML with an ' + |
---|
| 699 | polygon.CLASS_NAME + ' object.', |
---|
| 700 | geometry: polygon |
---|
| 701 | }; |
---|
| 702 | } |
---|
| 703 | |
---|
| 704 | var polyElem = this.createElementNS("", "POLYGON"); |
---|
| 705 | |
---|
| 706 | for (var ln=0, lnlen=polygon.components.length; ln<lnlen; ln++) { |
---|
| 707 | var ring = polygon.components[ln]; |
---|
| 708 | var ringElem = this.createElementNS("", "RING"); |
---|
| 709 | |
---|
| 710 | for (var rn=0, rnlen=ring.components.length; rn<rnlen; rn++) { |
---|
| 711 | var point = ring.components[rn]; |
---|
| 712 | var pointElem = this.createElementNS("", "POINT"); |
---|
| 713 | |
---|
| 714 | pointElem.setAttribute("x", point.x); |
---|
| 715 | pointElem.setAttribute("y", point.y); |
---|
| 716 | |
---|
| 717 | ringElem.appendChild(pointElem); |
---|
| 718 | } |
---|
| 719 | |
---|
| 720 | polyElem.appendChild(ringElem); |
---|
| 721 | } |
---|
| 722 | |
---|
| 723 | return polyElem; |
---|
| 724 | }, |
---|
| 725 | |
---|
| 726 | /** |
---|
| 727 | * Method: parseResponse |
---|
| 728 | * Take an ArcXML response, and parse in into this object's internal properties. |
---|
| 729 | * |
---|
| 730 | * Parameters: |
---|
| 731 | * data - {String} or {DOMElement} The ArcXML response, as either a string or the |
---|
| 732 | * top level DOMElement of the response. |
---|
| 733 | */ |
---|
| 734 | parseResponse: function(data) { |
---|
| 735 | if(typeof data == "string") { |
---|
| 736 | var newData = new OpenLayers.Format.XML(); |
---|
| 737 | data = newData.read(data); |
---|
| 738 | } |
---|
| 739 | var response = new OpenLayers.Format.ArcXML.Response(); |
---|
| 740 | |
---|
| 741 | var errorNode = data.getElementsByTagName("ERROR"); |
---|
| 742 | |
---|
| 743 | if (errorNode != null && errorNode.length > 0) { |
---|
| 744 | response.error = this.getChildValue(errorNode, "Unknown error."); |
---|
| 745 | } else { |
---|
| 746 | var responseNode = data.getElementsByTagName("RESPONSE"); |
---|
| 747 | |
---|
| 748 | if (responseNode == null || responseNode.length == 0) { |
---|
| 749 | response.error = "No RESPONSE tag found in ArcXML response."; |
---|
| 750 | return response; |
---|
| 751 | } |
---|
| 752 | |
---|
| 753 | var rtype = responseNode[0].firstChild.nodeName; |
---|
| 754 | if (rtype == "#text") { |
---|
| 755 | rtype = responseNode[0].firstChild.nextSibling.nodeName; |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | if (rtype == "IMAGE") { |
---|
| 759 | var envelopeNode = data.getElementsByTagName("ENVELOPE"); |
---|
| 760 | var outputNode = data.getElementsByTagName("OUTPUT"); |
---|
| 761 | |
---|
| 762 | if (envelopeNode == null || envelopeNode.length == 0) { |
---|
| 763 | response.error = "No ENVELOPE tag found in ArcXML response."; |
---|
| 764 | } else if (outputNode == null || outputNode.length == 0) { |
---|
| 765 | response.error = "No OUTPUT tag found in ArcXML response."; |
---|
| 766 | } else { |
---|
| 767 | var envAttr = this.parseAttributes(envelopeNode[0]); |
---|
| 768 | var outputAttr = this.parseAttributes(outputNode[0]); |
---|
| 769 | |
---|
| 770 | if (typeof outputAttr.type == "string") { |
---|
| 771 | response.image = { |
---|
| 772 | envelope: envAttr, |
---|
| 773 | output: { |
---|
| 774 | type: outputAttr.type, |
---|
| 775 | data: this.getChildValue(outputNode[0]) |
---|
| 776 | } |
---|
| 777 | }; |
---|
| 778 | } else { |
---|
| 779 | response.image = { envelope: envAttr, output: outputAttr }; |
---|
| 780 | } |
---|
| 781 | } |
---|
| 782 | } else if (rtype == "FEATURES") { |
---|
| 783 | var features = responseNode[0].getElementsByTagName("FEATURES"); |
---|
| 784 | |
---|
| 785 | // get the feature count |
---|
| 786 | var featureCount = features[0].getElementsByTagName("FEATURECOUNT"); |
---|
| 787 | response.features.featurecount = featureCount[0].getAttribute("count"); |
---|
| 788 | |
---|
| 789 | if (response.features.featurecount > 0) { |
---|
| 790 | // get the feature envelope |
---|
| 791 | var envelope = features[0].getElementsByTagName("ENVELOPE"); |
---|
| 792 | response.features.envelope = this.parseAttributes(envelope[0], typeof(0)); |
---|
| 793 | |
---|
| 794 | // get the field values per feature |
---|
| 795 | var featureList = features[0].getElementsByTagName("FEATURE"); |
---|
| 796 | for (var fn = 0; fn < featureList.length; fn++) { |
---|
| 797 | var feature = new OpenLayers.Feature.Vector(); |
---|
| 798 | var fields = featureList[fn].getElementsByTagName("FIELD"); |
---|
| 799 | |
---|
| 800 | for (var fdn = 0; fdn < fields.length; fdn++) { |
---|
| 801 | var fieldName = fields[fdn].getAttribute("name"); |
---|
| 802 | var fieldValue = fields[fdn].getAttribute("value"); |
---|
| 803 | feature.attributes[ fieldName ] = fieldValue; |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | var geom = featureList[fn].getElementsByTagName("POLYGON"); |
---|
| 807 | |
---|
| 808 | if (geom.length > 0) { |
---|
| 809 | // if there is a polygon, create an openlayers polygon, and assign |
---|
| 810 | // it to the .geometry property of the feature |
---|
| 811 | var ring = geom[0].getElementsByTagName("RING"); |
---|
| 812 | |
---|
| 813 | var polys = []; |
---|
| 814 | for (var rn = 0; rn < ring.length; rn++) { |
---|
| 815 | var linearRings = []; |
---|
| 816 | linearRings.push(this.parsePointGeometry(ring[rn])); |
---|
| 817 | |
---|
| 818 | var holes = ring[rn].getElementsByTagName("HOLE"); |
---|
| 819 | for (var hn = 0; hn < holes.length; hn++) { |
---|
| 820 | linearRings.push(this.parsePointGeometry(holes[hn])); |
---|
| 821 | } |
---|
| 822 | holes = null; |
---|
| 823 | polys.push(new OpenLayers.Geometry.Polygon(linearRings)); |
---|
| 824 | linearRings = null; |
---|
| 825 | } |
---|
| 826 | ring = null; |
---|
| 827 | |
---|
| 828 | if (polys.length == 1) { |
---|
| 829 | feature.geometry = polys[0]; |
---|
| 830 | } else |
---|
| 831 | { |
---|
| 832 | feature.geometry = new OpenLayers.Geometry.MultiPolygon(polys); |
---|
| 833 | } |
---|
| 834 | } |
---|
| 835 | |
---|
| 836 | response.features.feature.push(feature); |
---|
| 837 | } |
---|
| 838 | } |
---|
| 839 | } else { |
---|
| 840 | response.error = "Unidentified response type."; |
---|
| 841 | } |
---|
| 842 | } |
---|
| 843 | return response; |
---|
| 844 | }, |
---|
| 845 | |
---|
| 846 | |
---|
| 847 | /** |
---|
| 848 | * Method: parseAttributes |
---|
| 849 | * |
---|
| 850 | * Parameters: |
---|
| 851 | * node - {<DOMElement>} An element to parse attributes from. |
---|
| 852 | * |
---|
| 853 | * Returns: |
---|
| 854 | * {Object} An attributes object, with properties set to attribute values. |
---|
| 855 | */ |
---|
| 856 | parseAttributes: function(node,type) { |
---|
| 857 | var attributes = {}; |
---|
| 858 | for(var attr = 0; attr < node.attributes.length; attr++) { |
---|
| 859 | if (type == "number") { |
---|
| 860 | attributes[node.attributes[attr].nodeName] = parseFloat(node.attributes[attr].nodeValue); |
---|
| 861 | } else { |
---|
| 862 | attributes[node.attributes[attr].nodeName] = node.attributes[attr].nodeValue; |
---|
| 863 | } |
---|
| 864 | } |
---|
| 865 | return attributes; |
---|
| 866 | }, |
---|
| 867 | |
---|
| 868 | |
---|
| 869 | /** |
---|
| 870 | * Method: parsePointGeometry |
---|
| 871 | * |
---|
| 872 | * Parameters: |
---|
| 873 | * node - {<DOMElement>} An element to parse <COORDS> or <POINT> arcxml data from. |
---|
| 874 | * |
---|
| 875 | * Returns: |
---|
| 876 | * {OpenLayers.Geometry.LinearRing} A linear ring represented by the node's points. |
---|
| 877 | */ |
---|
| 878 | parsePointGeometry: function(node) { |
---|
| 879 | var ringPoints = []; |
---|
| 880 | var coords = node.getElementsByTagName("COORDS"); |
---|
| 881 | |
---|
| 882 | if (coords.length > 0) { |
---|
| 883 | // if coords is present, it's the only coords item |
---|
| 884 | var coordArr = this.getChildValue(coords[0]); |
---|
| 885 | coordArr = coordArr.split(/;/); |
---|
| 886 | for (var cn = 0; cn < coordArr.length; cn++) { |
---|
| 887 | var coordItems = coordArr[cn].split(/ /); |
---|
| 888 | ringPoints.push(new OpenLayers.Geometry.Point(parseFloat(coordItems[0]), parseFloat(coordItems[1]))); |
---|
| 889 | } |
---|
| 890 | coords = null; |
---|
| 891 | } else { |
---|
| 892 | var point = node.getElementsByTagName("POINT"); |
---|
| 893 | if (point.length > 0) { |
---|
| 894 | for (var pn = 0; pn < point.length; pn++) { |
---|
| 895 | ringPoints.push( |
---|
| 896 | new OpenLayers.Geometry.Point( |
---|
| 897 | parseFloat(point[pn].getAttribute("x")), |
---|
| 898 | parseFloat(point[pn].getAttribute("y")) |
---|
| 899 | ) |
---|
| 900 | ); |
---|
| 901 | } |
---|
| 902 | } |
---|
| 903 | point = null; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | return new OpenLayers.Geometry.LinearRing(ringPoints); |
---|
| 907 | }, |
---|
| 908 | |
---|
| 909 | CLASS_NAME: "OpenLayers.Format.ArcXML" |
---|
| 910 | }); |
---|
| 911 | |
---|
| 912 | OpenLayers.Format.ArcXML.Request = OpenLayers.Class({ |
---|
| 913 | initialize: function(params) { |
---|
| 914 | var defaults = { |
---|
| 915 | get_image: { |
---|
| 916 | properties: { |
---|
| 917 | background: null, |
---|
| 918 | /*{ |
---|
| 919 | color: { r:255, g:255, b:255 }, |
---|
| 920 | transcolor: null |
---|
| 921 | },*/ |
---|
| 922 | draw: true, |
---|
| 923 | envelope: { |
---|
| 924 | minx: 0, |
---|
| 925 | miny: 0, |
---|
| 926 | maxx: 0, |
---|
| 927 | maxy: 0 |
---|
| 928 | }, |
---|
| 929 | featurecoordsys: { |
---|
| 930 | id:0, |
---|
| 931 | string:"", |
---|
| 932 | datumtransformid:0, |
---|
| 933 | datumtransformstring:"" |
---|
| 934 | }, |
---|
| 935 | filtercoordsys:{ |
---|
| 936 | id:0, |
---|
| 937 | string:"", |
---|
| 938 | datumtransformid:0, |
---|
| 939 | datumtransformstring:"" |
---|
| 940 | }, |
---|
| 941 | imagesize:{ |
---|
| 942 | height:0, |
---|
| 943 | width:0, |
---|
| 944 | dpi:96, |
---|
| 945 | printheight:0, |
---|
| 946 | printwidth:0, |
---|
| 947 | scalesymbols:false |
---|
| 948 | }, |
---|
| 949 | layerlist:[], |
---|
| 950 | /* no support for legends */ |
---|
| 951 | output:{ |
---|
| 952 | baseurl:"", |
---|
| 953 | legendbaseurl:"", |
---|
| 954 | legendname:"", |
---|
| 955 | legendpath:"", |
---|
| 956 | legendurl:"", |
---|
| 957 | name:"", |
---|
| 958 | path:"", |
---|
| 959 | type:"jpg", |
---|
| 960 | url:"" |
---|
| 961 | } |
---|
| 962 | } |
---|
| 963 | }, |
---|
| 964 | |
---|
| 965 | get_feature: { |
---|
| 966 | layer: "", |
---|
| 967 | query: { |
---|
| 968 | isspatial: false, |
---|
| 969 | featurecoordsys: { |
---|
| 970 | id:0, |
---|
| 971 | string:"", |
---|
| 972 | datumtransformid:0, |
---|
| 973 | datumtransformstring:"" |
---|
| 974 | }, |
---|
| 975 | filtercoordsys: { |
---|
| 976 | id:0, |
---|
| 977 | string:"", |
---|
| 978 | datumtransformid:0, |
---|
| 979 | datumtransformstring:"" |
---|
| 980 | }, |
---|
| 981 | buffer:0, |
---|
| 982 | where:"", |
---|
| 983 | spatialfilter: { |
---|
| 984 | relation: "envelope_intersection", |
---|
| 985 | envelope: null |
---|
| 986 | } |
---|
| 987 | } |
---|
| 988 | }, |
---|
| 989 | |
---|
| 990 | environment: { |
---|
| 991 | separators: { |
---|
| 992 | cs:" ", |
---|
| 993 | ts:";" |
---|
| 994 | } |
---|
| 995 | }, |
---|
| 996 | |
---|
| 997 | layer: [], |
---|
| 998 | workspaces: [] |
---|
| 999 | }; |
---|
| 1000 | |
---|
| 1001 | return OpenLayers.Util.extend(this, defaults); |
---|
| 1002 | }, |
---|
| 1003 | |
---|
| 1004 | CLASS_NAME: "OpenLayers.Format.ArcXML.Request" |
---|
| 1005 | }); |
---|
| 1006 | |
---|
| 1007 | OpenLayers.Format.ArcXML.Response = OpenLayers.Class({ |
---|
| 1008 | initialize: function(params) { |
---|
| 1009 | var defaults = { |
---|
| 1010 | image: { |
---|
| 1011 | envelope:null, |
---|
| 1012 | output:'' |
---|
| 1013 | }, |
---|
| 1014 | |
---|
| 1015 | features: { |
---|
| 1016 | featurecount: 0, |
---|
| 1017 | envelope: null, |
---|
| 1018 | feature: [] |
---|
| 1019 | }, |
---|
| 1020 | |
---|
| 1021 | error:'' |
---|
| 1022 | }; |
---|
| 1023 | |
---|
| 1024 | return OpenLayers.Util.extend(this, defaults); |
---|
| 1025 | }, |
---|
| 1026 | |
---|
| 1027 | CLASS_NAME: "OpenLayers.Format.ArcXML.Response" |
---|
| 1028 | }); |
---|