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/Rule.js |
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8 | * @requires OpenLayers/Format/SLD.js |
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9 | * @requires OpenLayers/Format/Filter/v1_0_0.js |
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10 | */ |
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11 | |
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12 | /** |
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13 | * Class: OpenLayers.Format.SLD.v1 |
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14 | * Superclass for SLD version 1 parsers. |
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15 | * |
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16 | * Inherits from: |
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17 | * - <OpenLayers.Format.Filter.v1_0_0> |
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18 | */ |
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19 | OpenLayers.Format.SLD.v1 = OpenLayers.Class(OpenLayers.Format.Filter.v1_0_0, { |
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20 | |
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21 | /** |
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22 | * Property: namespaces |
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23 | * {Object} Mapping of namespace aliases to namespace URIs. |
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24 | */ |
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25 | namespaces: { |
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26 | sld: "http://www.opengis.net/sld", |
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27 | ogc: "http://www.opengis.net/ogc", |
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28 | gml: "http://www.opengis.net/gml", |
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29 | xlink: "http://www.w3.org/1999/xlink", |
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30 | xsi: "http://www.w3.org/2001/XMLSchema-instance" |
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31 | }, |
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32 | |
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33 | /** |
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34 | * Property: defaultPrefix |
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35 | */ |
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36 | defaultPrefix: "sld", |
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37 | |
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38 | /** |
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39 | * Property: schemaLocation |
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40 | * {String} Schema location for a particular minor version. |
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41 | */ |
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42 | schemaLocation: null, |
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43 | |
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44 | /** |
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45 | * APIProperty: multipleSymbolizers |
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46 | * {Boolean} Support multiple symbolizers per rule. Default is false. if |
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47 | * true, an OpenLayers.Style2 instance will be created to represent |
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48 | * user styles instead of an OpenLayers.Style instace. The |
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49 | * OpenLayers.Style2 class allows collections of rules with multiple |
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50 | * symbolizers, but is not currently useful for client side rendering. |
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51 | * If multiple symbolizers is true, multiple FeatureTypeStyle elements |
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52 | * are preserved in reading/writing by setting symbolizer zIndex values. |
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53 | * In addition, the <defaultSymbolizer> property is ignored if |
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54 | * multiple symbolizers are supported (defaults should be applied |
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55 | * when rendering). |
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56 | */ |
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57 | multipleSymbolizers: false, |
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58 | |
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59 | /** |
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60 | * Property: featureTypeCounter |
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61 | * {Number} Private counter for multiple feature type styles. |
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62 | */ |
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63 | featureTypeCounter: null, |
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64 | |
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65 | /** |
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66 | * APIProperty: defaultSymbolizer. |
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67 | * {Object} A symbolizer with the SLD defaults. |
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68 | */ |
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69 | defaultSymbolizer: { |
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70 | fillColor: "#808080", |
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71 | fillOpacity: 1, |
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72 | strokeColor: "#000000", |
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73 | strokeOpacity: 1, |
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74 | strokeWidth: 1, |
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75 | strokeDashstyle: "solid", |
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76 | pointRadius: 3, |
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77 | graphicName: "square" |
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78 | }, |
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79 | |
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80 | /** |
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81 | * Constructor: OpenLayers.Format.SLD.v1 |
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82 | * Instances of this class are not created directly. Use the |
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83 | * <OpenLayers.Format.SLD> constructor instead. |
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84 | * |
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85 | * Parameters: |
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86 | * options - {Object} An optional object whose properties will be set on |
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87 | * this instance. |
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88 | */ |
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89 | initialize: function(options) { |
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90 | OpenLayers.Format.Filter.v1_0_0.prototype.initialize.apply(this, [options]); |
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91 | }, |
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92 | |
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93 | /** |
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94 | * Method: read |
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95 | * |
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96 | * Parameters: |
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97 | * data - {DOMElement} An SLD document element. |
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98 | * options - {Object} Options for the reader. |
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99 | * |
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100 | * Valid options: |
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101 | * namedLayersAsArray - {Boolean} Generate a namedLayers array. If false, |
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102 | * the namedLayers property value will be an object keyed by layer name. |
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103 | * Default is false. |
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104 | * |
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105 | * Returns: |
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106 | * {Object} An object representing the SLD. |
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107 | */ |
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108 | read: function(data, options) { |
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109 | options = OpenLayers.Util.applyDefaults(options, this.options); |
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110 | var sld = { |
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111 | namedLayers: options.namedLayersAsArray === true ? [] : {} |
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112 | }; |
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113 | this.readChildNodes(data, sld); |
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114 | return sld; |
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115 | }, |
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116 | |
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117 | /** |
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118 | * Property: readers |
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119 | * Contains public functions, grouped by namespace prefix, that will |
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120 | * be applied when a namespaced node is found matching the function |
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121 | * name. The function will be applied in the scope of this parser |
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122 | * with two arguments: the node being read and a context object passed |
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123 | * from the parent. |
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124 | */ |
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125 | readers: OpenLayers.Util.applyDefaults({ |
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126 | "sld": { |
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127 | "StyledLayerDescriptor": function(node, sld) { |
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128 | sld.version = node.getAttribute("version"); |
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129 | this.readChildNodes(node, sld); |
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130 | }, |
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131 | "Name": function(node, obj) { |
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132 | obj.name = this.getChildValue(node); |
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133 | }, |
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134 | "Title": function(node, obj) { |
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135 | obj.title = this.getChildValue(node); |
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136 | }, |
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137 | "Abstract": function(node, obj) { |
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138 | obj.description = this.getChildValue(node); |
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139 | }, |
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140 | "NamedLayer": function(node, sld) { |
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141 | var layer = { |
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142 | userStyles: [], |
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143 | namedStyles: [] |
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144 | }; |
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145 | this.readChildNodes(node, layer); |
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146 | // give each of the user styles this layer name |
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147 | for(var i=0, len=layer.userStyles.length; i<len; ++i) { |
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148 | layer.userStyles[i].layerName = layer.name; |
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149 | } |
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150 | if(sld.namedLayers instanceof Array) { |
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151 | sld.namedLayers.push(layer); |
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152 | } else { |
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153 | sld.namedLayers[layer.name] = layer; |
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154 | } |
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155 | }, |
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156 | "NamedStyle": function(node, layer) { |
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157 | layer.namedStyles.push( |
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158 | this.getChildName(node.firstChild) |
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159 | ); |
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160 | }, |
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161 | "UserStyle": function(node, layer) { |
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162 | var obj = {defaultsPerSymbolizer: true, rules: []}; |
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163 | this.featureTypeCounter = -1; |
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164 | this.readChildNodes(node, obj); |
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165 | var style; |
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166 | if (this.multipleSymbolizers) { |
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167 | delete obj.defaultsPerSymbolizer; |
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168 | style = new OpenLayers.Style2(obj); |
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169 | } else { |
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170 | style = new OpenLayers.Style(this.defaultSymbolizer, obj); |
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171 | } |
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172 | layer.userStyles.push(style); |
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173 | }, |
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174 | "IsDefault": function(node, style) { |
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175 | if(this.getChildValue(node) == "1") { |
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176 | style.isDefault = true; |
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177 | } |
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178 | }, |
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179 | "FeatureTypeStyle": function(node, style) { |
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180 | ++this.featureTypeCounter; |
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181 | var obj = { |
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182 | rules: this.multipleSymbolizers ? style.rules : [] |
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183 | }; |
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184 | this.readChildNodes(node, obj); |
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185 | if (!this.multipleSymbolizers) { |
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186 | style.rules = obj.rules; |
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187 | } |
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188 | }, |
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189 | "Rule": function(node, obj) { |
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190 | var config; |
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191 | if (this.multipleSymbolizers) { |
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192 | config = {symbolizers: []}; |
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193 | } |
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194 | var rule = new OpenLayers.Rule(config); |
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195 | this.readChildNodes(node, rule); |
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196 | obj.rules.push(rule); |
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197 | }, |
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198 | "ElseFilter": function(node, rule) { |
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199 | rule.elseFilter = true; |
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200 | }, |
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201 | "MinScaleDenominator": function(node, rule) { |
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202 | rule.minScaleDenominator = parseFloat(this.getChildValue(node)); |
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203 | }, |
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204 | "MaxScaleDenominator": function(node, rule) { |
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205 | rule.maxScaleDenominator = parseFloat(this.getChildValue(node)); |
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206 | }, |
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207 | "TextSymbolizer": function(node, rule) { |
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208 | var config = {}; |
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209 | this.readChildNodes(node, config); |
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210 | if (this.multipleSymbolizers) { |
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211 | config.zIndex = this.featureTypeCounter; |
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212 | rule.symbolizers.push( |
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213 | new OpenLayers.Symbolizer.Text(config) |
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214 | ); |
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215 | } else { |
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216 | rule.symbolizer["Text"] = OpenLayers.Util.applyDefaults( |
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217 | config, rule.symbolizer["Text"] |
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218 | ); |
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219 | } |
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220 | }, |
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221 | "Label": function(node, symbolizer) { |
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222 | // only supporting literal or property name |
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223 | var obj = {}; |
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224 | this.readChildNodes(node, obj); |
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225 | if(obj.property) { |
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226 | symbolizer.label = "${" + obj.property + "}"; |
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227 | } else { |
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228 | var value = this.readOgcExpression(node); |
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229 | if(value) { |
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230 | symbolizer.label = value; |
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231 | } |
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232 | } |
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233 | }, |
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234 | "Font": function(node, symbolizer) { |
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235 | this.readChildNodes(node, symbolizer); |
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236 | }, |
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237 | "Halo": function(node, symbolizer) { |
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238 | // halo has a fill, so send fresh object |
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239 | var obj = {}; |
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240 | this.readChildNodes(node, obj); |
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241 | symbolizer.haloRadius = obj.haloRadius; |
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242 | symbolizer.haloColor = obj.fillColor; |
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243 | symbolizer.haloOpacity = obj.fillOpacity; |
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244 | }, |
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245 | "Radius": function(node, symbolizer) { |
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246 | var radius = this.readOgcExpression(node); |
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247 | if(radius != null) { |
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248 | // radius is only used for halo |
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249 | symbolizer.haloRadius = radius; |
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250 | } |
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251 | }, |
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252 | "RasterSymbolizer": function(node, rule) { |
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253 | var config = {}; |
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254 | this.readChildNodes(node, config); |
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255 | if (this.multipleSymbolizers) { |
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256 | config.zIndex = this.featureTypeCounter; |
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257 | rule.symbolizers.push( |
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258 | new OpenLayers.Symbolizer.Raster(config) |
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259 | ); |
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260 | } else { |
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261 | rule.symbolizer["Raster"] = OpenLayers.Util.applyDefaults( |
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262 | config, rule.symbolizer["Raster"] |
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263 | ); |
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264 | } |
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265 | }, |
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266 | "Geometry": function(node, obj) { |
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267 | obj.geometry = {}; |
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268 | this.readChildNodes(node, obj.geometry); |
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269 | }, |
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270 | "ColorMap": function(node, symbolizer) { |
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271 | symbolizer.colorMap = []; |
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272 | this.readChildNodes(node, symbolizer.colorMap); |
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273 | }, |
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274 | "ColorMapEntry": function(node, colorMap) { |
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275 | var q = node.getAttribute("quantity"); |
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276 | var o = node.getAttribute("opacity"); |
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277 | colorMap.push({ |
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278 | color: node.getAttribute("color"), |
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279 | quantity: q !== null ? parseFloat(q) : undefined, |
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280 | label: node.getAttribute("label") || undefined, |
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281 | opacity: o !== null ? parseFloat(o) : undefined |
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282 | }); |
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283 | }, |
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284 | "LineSymbolizer": function(node, rule) { |
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285 | var config = {}; |
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286 | this.readChildNodes(node, config); |
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287 | if (this.multipleSymbolizers) { |
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288 | config.zIndex = this.featureTypeCounter; |
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289 | rule.symbolizers.push( |
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290 | new OpenLayers.Symbolizer.Line(config) |
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291 | ); |
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292 | } else { |
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293 | rule.symbolizer["Line"] = OpenLayers.Util.applyDefaults( |
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294 | config, rule.symbolizer["Line"] |
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295 | ); |
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296 | } |
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297 | }, |
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298 | "PolygonSymbolizer": function(node, rule) { |
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299 | var config = { |
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300 | fill: false, |
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301 | stroke: false |
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302 | }; |
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303 | if (!this.multipleSymbolizers) { |
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304 | config = rule.symbolizer["Polygon"] || config; |
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305 | } |
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306 | this.readChildNodes(node, config); |
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307 | if (this.multipleSymbolizers) { |
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308 | config.zIndex = this.featureTypeCounter; |
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309 | rule.symbolizers.push( |
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310 | new OpenLayers.Symbolizer.Polygon(config) |
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311 | ); |
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312 | } else { |
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313 | rule.symbolizer["Polygon"] = config; |
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314 | } |
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315 | }, |
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316 | "PointSymbolizer": function(node, rule) { |
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317 | var config = { |
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318 | fill: false, |
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319 | stroke: false, |
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320 | graphic: false |
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321 | }; |
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322 | if (!this.multipleSymbolizers) { |
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323 | config = rule.symbolizer["Point"] || config; |
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324 | } |
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325 | this.readChildNodes(node, config); |
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326 | if (this.multipleSymbolizers) { |
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327 | config.zIndex = this.featureTypeCounter; |
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328 | rule.symbolizers.push( |
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329 | new OpenLayers.Symbolizer.Point(config) |
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330 | ); |
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331 | } else { |
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332 | rule.symbolizer["Point"] = config; |
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333 | } |
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334 | }, |
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335 | "Stroke": function(node, symbolizer) { |
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336 | symbolizer.stroke = true; |
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337 | this.readChildNodes(node, symbolizer); |
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338 | }, |
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339 | "Fill": function(node, symbolizer) { |
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340 | symbolizer.fill = true; |
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341 | this.readChildNodes(node, symbolizer); |
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342 | }, |
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343 | "CssParameter": function(node, symbolizer) { |
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344 | var cssProperty = node.getAttribute("name"); |
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345 | var symProperty = this.cssMap[cssProperty]; |
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346 | if(symProperty) { |
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347 | // Limited support for parsing of OGC expressions |
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348 | var value = this.readOgcExpression(node); |
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349 | // always string, could be an empty string |
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350 | if(value) { |
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351 | symbolizer[symProperty] = value; |
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352 | } |
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353 | } |
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354 | }, |
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355 | "Graphic": function(node, symbolizer) { |
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356 | symbolizer.graphic = true; |
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357 | var graphic = {}; |
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358 | // painter's order not respected here, clobber previous with next |
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359 | this.readChildNodes(node, graphic); |
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360 | // directly properties with names that match symbolizer properties |
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361 | var properties = [ |
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362 | "stroke", "strokeColor", "strokeWidth", "strokeOpacity", |
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363 | "strokeLinecap", "fill", "fillColor", "fillOpacity", |
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364 | "graphicName", "rotation", "graphicFormat" |
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365 | ]; |
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366 | var prop, value; |
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367 | for(var i=0, len=properties.length; i<len; ++i) { |
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368 | prop = properties[i]; |
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369 | value = graphic[prop]; |
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370 | if(value != undefined) { |
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371 | symbolizer[prop] = value; |
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372 | } |
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373 | } |
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374 | // set other generic properties with specific graphic property names |
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375 | if(graphic.opacity != undefined) { |
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376 | symbolizer.graphicOpacity = graphic.opacity; |
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377 | } |
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378 | if(graphic.size != undefined) { |
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379 | symbolizer.pointRadius = graphic.size / 2; |
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380 | } |
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381 | if(graphic.href != undefined) { |
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382 | symbolizer.externalGraphic = graphic.href; |
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383 | } |
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384 | if(graphic.rotation != undefined) { |
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385 | symbolizer.rotation = graphic.rotation; |
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386 | } |
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387 | }, |
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388 | "ExternalGraphic": function(node, graphic) { |
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389 | this.readChildNodes(node, graphic); |
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390 | }, |
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391 | "Mark": function(node, graphic) { |
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392 | this.readChildNodes(node, graphic); |
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393 | }, |
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394 | "WellKnownName": function(node, graphic) { |
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395 | graphic.graphicName = this.getChildValue(node); |
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396 | }, |
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397 | "Opacity": function(node, obj) { |
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398 | var opacity = this.readOgcExpression(node); |
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399 | // always string, could be empty string |
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400 | if(opacity) { |
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401 | obj.opacity = opacity; |
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402 | } |
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403 | }, |
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404 | "Size": function(node, obj) { |
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405 | var size = this.readOgcExpression(node); |
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406 | // always string, could be empty string |
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407 | if(size) { |
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408 | obj.size = size; |
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409 | } |
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410 | }, |
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411 | "Rotation": function(node, obj) { |
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412 | var rotation = this.readOgcExpression(node); |
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413 | // always string, could be empty string |
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414 | if(rotation) { |
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415 | obj.rotation = rotation; |
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416 | } |
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417 | }, |
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418 | "OnlineResource": function(node, obj) { |
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419 | obj.href = this.getAttributeNS( |
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420 | node, this.namespaces.xlink, "href" |
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421 | ); |
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422 | }, |
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423 | "Format": function(node, graphic) { |
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424 | graphic.graphicFormat = this.getChildValue(node); |
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425 | } |
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426 | } |
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427 | }, OpenLayers.Format.Filter.v1_0_0.prototype.readers), |
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428 | |
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429 | /** |
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430 | * Property: cssMap |
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431 | * {Object} Object mapping supported css property names to OpenLayers |
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432 | * symbolizer property names. |
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433 | */ |
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434 | cssMap: { |
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435 | "stroke": "strokeColor", |
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436 | "stroke-opacity": "strokeOpacity", |
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437 | "stroke-width": "strokeWidth", |
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438 | "stroke-linecap": "strokeLinecap", |
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439 | "stroke-dasharray": "strokeDashstyle", |
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440 | "fill": "fillColor", |
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441 | "fill-opacity": "fillOpacity", |
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442 | "font-family": "fontFamily", |
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443 | "font-size": "fontSize", |
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444 | "font-weight": "fontWeight", |
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445 | "font-style": "fontStyle" |
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446 | }, |
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447 | |
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448 | /** |
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449 | * Method: getCssProperty |
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450 | * Given a symbolizer property, get the corresponding CSS property |
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451 | * from the <cssMap>. |
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452 | * |
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453 | * Parameters: |
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454 | * sym - {String} A symbolizer property name. |
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455 | * |
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456 | * Returns: |
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457 | * {String} A CSS property name or null if none found. |
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458 | */ |
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459 | getCssProperty: function(sym) { |
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460 | var css = null; |
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461 | for(var prop in this.cssMap) { |
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462 | if(this.cssMap[prop] == sym) { |
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463 | css = prop; |
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464 | break; |
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465 | } |
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466 | } |
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467 | return css; |
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468 | }, |
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469 | |
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470 | /** |
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471 | * Method: getGraphicFormat |
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472 | * Given a href for an external graphic, try to determine the mime-type. |
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473 | * This method doesn't try too hard, and will fall back to |
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474 | * <defautlGraphicFormat> if one of the known <graphicFormats> is not |
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475 | * the file extension of the provided href. |
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476 | * |
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477 | * Parameters: |
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478 | * href - {String} |
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479 | * |
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480 | * Returns: |
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481 | * {String} The graphic format. |
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482 | */ |
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483 | getGraphicFormat: function(href) { |
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484 | var format, regex; |
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485 | for(var key in this.graphicFormats) { |
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486 | if(this.graphicFormats[key].test(href)) { |
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487 | format = key; |
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488 | break; |
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489 | } |
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490 | } |
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491 | return format || this.defautlGraphicFormat; |
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492 | }, |
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493 | |
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494 | /** |
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495 | * Property: defaultGraphicFormat |
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496 | * {String} If none other can be determined from <getGraphicFormat>, this |
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497 | * default will be returned. |
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498 | */ |
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499 | defaultGraphicFormat: "image/png", |
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500 | |
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501 | /** |
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502 | * Property: graphicFormats |
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503 | * {Object} Mapping of image mime-types to regular extensions matching |
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504 | * well-known file extensions. |
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505 | */ |
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506 | graphicFormats: { |
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507 | "image/jpeg": /\.jpe?g$/i, |
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508 | "image/gif": /\.gif$/i, |
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509 | "image/png": /\.png$/i |
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510 | }, |
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511 | |
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512 | /** |
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513 | * Method: write |
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514 | * |
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515 | * Parameters: |
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516 | * sld - {Object} An object representing the SLD. |
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517 | * |
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518 | * Returns: |
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519 | * {DOMElement} The root of an SLD document. |
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520 | */ |
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521 | write: function(sld) { |
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522 | return this.writers.sld.StyledLayerDescriptor.apply(this, [sld]); |
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523 | }, |
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524 | |
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525 | /** |
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526 | * Property: writers |
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527 | * As a compliment to the readers property, this structure contains public |
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528 | * writing functions grouped by namespace alias and named like the |
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529 | * node names they produce. |
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530 | */ |
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531 | writers: OpenLayers.Util.applyDefaults({ |
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532 | "sld": { |
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533 | "StyledLayerDescriptor": function(sld) { |
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534 | var root = this.createElementNSPlus( |
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535 | "sld:StyledLayerDescriptor", |
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536 | {attributes: { |
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537 | "version": this.VERSION, |
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538 | "xsi:schemaLocation": this.schemaLocation |
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539 | }} |
---|
540 | ); |
---|
541 | |
---|
542 | // For ArcGIS Server it is necessary to define this |
---|
543 | // at the root level (see ticket:2166). |
---|
544 | root.setAttribute("xmlns:ogc", this.namespaces.ogc); |
---|
545 | root.setAttribute("xmlns:gml", this.namespaces.gml); |
---|
546 | |
---|
547 | // add in optional name |
---|
548 | if(sld.name) { |
---|
549 | this.writeNode("Name", sld.name, root); |
---|
550 | } |
---|
551 | // add in optional title |
---|
552 | if(sld.title) { |
---|
553 | this.writeNode("Title", sld.title, root); |
---|
554 | } |
---|
555 | // add in optional description |
---|
556 | if(sld.description) { |
---|
557 | this.writeNode("Abstract", sld.description, root); |
---|
558 | } |
---|
559 | // add in named layers |
---|
560 | // allow namedLayers to be an array |
---|
561 | if(sld.namedLayers instanceof Array) { |
---|
562 | for(var i=0, len=sld.namedLayers.length; i<len; ++i) { |
---|
563 | this.writeNode("NamedLayer", sld.namedLayers[i], root); |
---|
564 | } |
---|
565 | } else { |
---|
566 | for(var name in sld.namedLayers) { |
---|
567 | this.writeNode("NamedLayer", sld.namedLayers[name], root); |
---|
568 | } |
---|
569 | } |
---|
570 | return root; |
---|
571 | }, |
---|
572 | "Name": function(name) { |
---|
573 | return this.createElementNSPlus("sld:Name", {value: name}); |
---|
574 | }, |
---|
575 | "Title": function(title) { |
---|
576 | return this.createElementNSPlus("sld:Title", {value: title}); |
---|
577 | }, |
---|
578 | "Abstract": function(description) { |
---|
579 | return this.createElementNSPlus( |
---|
580 | "sld:Abstract", {value: description} |
---|
581 | ); |
---|
582 | }, |
---|
583 | "NamedLayer": function(layer) { |
---|
584 | var node = this.createElementNSPlus("sld:NamedLayer"); |
---|
585 | |
---|
586 | // add in required name |
---|
587 | this.writeNode("Name", layer.name, node); |
---|
588 | |
---|
589 | // optional sld:LayerFeatureConstraints here |
---|
590 | |
---|
591 | // add in named styles |
---|
592 | if(layer.namedStyles) { |
---|
593 | for(var i=0, len=layer.namedStyles.length; i<len; ++i) { |
---|
594 | this.writeNode( |
---|
595 | "NamedStyle", layer.namedStyles[i], node |
---|
596 | ); |
---|
597 | } |
---|
598 | } |
---|
599 | |
---|
600 | // add in user styles |
---|
601 | if(layer.userStyles) { |
---|
602 | for(var i=0, len=layer.userStyles.length; i<len; ++i) { |
---|
603 | this.writeNode( |
---|
604 | "UserStyle", layer.userStyles[i], node |
---|
605 | ); |
---|
606 | } |
---|
607 | } |
---|
608 | |
---|
609 | return node; |
---|
610 | }, |
---|
611 | "NamedStyle": function(name) { |
---|
612 | var node = this.createElementNSPlus("sld:NamedStyle"); |
---|
613 | this.writeNode("Name", name, node); |
---|
614 | return node; |
---|
615 | }, |
---|
616 | "UserStyle": function(style) { |
---|
617 | var node = this.createElementNSPlus("sld:UserStyle"); |
---|
618 | |
---|
619 | // add in optional name |
---|
620 | if(style.name) { |
---|
621 | this.writeNode("Name", style.name, node); |
---|
622 | } |
---|
623 | // add in optional title |
---|
624 | if(style.title) { |
---|
625 | this.writeNode("Title", style.title, node); |
---|
626 | } |
---|
627 | // add in optional description |
---|
628 | if(style.description) { |
---|
629 | this.writeNode("Abstract", style.description, node); |
---|
630 | } |
---|
631 | |
---|
632 | // add isdefault |
---|
633 | if(style.isDefault) { |
---|
634 | this.writeNode("IsDefault", style.isDefault, node); |
---|
635 | } |
---|
636 | |
---|
637 | // add FeatureTypeStyles |
---|
638 | if (this.multipleSymbolizers && style.rules) { |
---|
639 | // group style objects by symbolizer zIndex |
---|
640 | var rulesByZ = { |
---|
641 | 0: [] |
---|
642 | }; |
---|
643 | var zValues = [0]; |
---|
644 | var rule, ruleMap, symbolizer, zIndex, clone; |
---|
645 | for (var i=0, ii=style.rules.length; i<ii; ++i) { |
---|
646 | rule = style.rules[i]; |
---|
647 | if (rule.symbolizers) { |
---|
648 | ruleMap = {}; |
---|
649 | for (var j=0, jj=rule.symbolizers.length; j<jj; ++j) { |
---|
650 | symbolizer = rule.symbolizers[j]; |
---|
651 | zIndex = symbolizer.zIndex; |
---|
652 | if (!(zIndex in ruleMap)) { |
---|
653 | clone = rule.clone(); |
---|
654 | clone.symbolizers = []; |
---|
655 | ruleMap[zIndex] = clone; |
---|
656 | } |
---|
657 | ruleMap[zIndex].symbolizers.push(symbolizer.clone()); |
---|
658 | } |
---|
659 | for (zIndex in ruleMap) { |
---|
660 | if (!(zIndex in rulesByZ)) { |
---|
661 | zValues.push(zIndex); |
---|
662 | rulesByZ[zIndex] = []; |
---|
663 | } |
---|
664 | rulesByZ[zIndex].push(ruleMap[zIndex]); |
---|
665 | } |
---|
666 | } else { |
---|
667 | // no symbolizers in rule |
---|
668 | rulesByZ[0].push(rule.clone()); |
---|
669 | } |
---|
670 | } |
---|
671 | // write one FeatureTypeStyle per zIndex |
---|
672 | zValues.sort(); |
---|
673 | var rules; |
---|
674 | for (var i=0, ii=zValues.length; i<ii; ++i) { |
---|
675 | rules = rulesByZ[zValues[i]]; |
---|
676 | if (rules.length > 0) { |
---|
677 | clone = style.clone(); |
---|
678 | clone.rules = rulesByZ[zValues[i]]; |
---|
679 | this.writeNode("FeatureTypeStyle", clone, node); |
---|
680 | } |
---|
681 | } |
---|
682 | } else { |
---|
683 | this.writeNode("FeatureTypeStyle", style, node); |
---|
684 | } |
---|
685 | |
---|
686 | return node; |
---|
687 | }, |
---|
688 | "IsDefault": function(bool) { |
---|
689 | return this.createElementNSPlus( |
---|
690 | "sld:IsDefault", {value: (bool) ? "1" : "0"} |
---|
691 | ); |
---|
692 | }, |
---|
693 | "FeatureTypeStyle": function(style) { |
---|
694 | var node = this.createElementNSPlus("sld:FeatureTypeStyle"); |
---|
695 | |
---|
696 | // OpenLayers currently stores no Name, Title, Abstract, |
---|
697 | // FeatureTypeName, or SemanticTypeIdentifier information |
---|
698 | // related to FeatureTypeStyle |
---|
699 | |
---|
700 | // add in rules |
---|
701 | for(var i=0, len=style.rules.length; i<len; ++i) { |
---|
702 | this.writeNode("Rule", style.rules[i], node); |
---|
703 | } |
---|
704 | |
---|
705 | return node; |
---|
706 | }, |
---|
707 | "Rule": function(rule) { |
---|
708 | var node = this.createElementNSPlus("sld:Rule"); |
---|
709 | |
---|
710 | // add in optional name |
---|
711 | if(rule.name) { |
---|
712 | this.writeNode("Name", rule.name, node); |
---|
713 | } |
---|
714 | // add in optional title |
---|
715 | if(rule.title) { |
---|
716 | this.writeNode("Title", rule.title, node); |
---|
717 | } |
---|
718 | // add in optional description |
---|
719 | if(rule.description) { |
---|
720 | this.writeNode("Abstract", rule.description, node); |
---|
721 | } |
---|
722 | |
---|
723 | // add in LegendGraphic here |
---|
724 | |
---|
725 | // add in optional filters |
---|
726 | if(rule.elseFilter) { |
---|
727 | this.writeNode("ElseFilter", null, node); |
---|
728 | } else if(rule.filter) { |
---|
729 | this.writeNode("ogc:Filter", rule.filter, node); |
---|
730 | } |
---|
731 | |
---|
732 | // add in scale limits |
---|
733 | if(rule.minScaleDenominator != undefined) { |
---|
734 | this.writeNode( |
---|
735 | "MinScaleDenominator", rule.minScaleDenominator, node |
---|
736 | ); |
---|
737 | } |
---|
738 | if(rule.maxScaleDenominator != undefined) { |
---|
739 | this.writeNode( |
---|
740 | "MaxScaleDenominator", rule.maxScaleDenominator, node |
---|
741 | ); |
---|
742 | } |
---|
743 | |
---|
744 | var type, symbolizer; |
---|
745 | if (this.multipleSymbolizers && rule.symbolizers) { |
---|
746 | var symbolizer; |
---|
747 | for (var i=0, ii=rule.symbolizers.length; i<ii; ++i) { |
---|
748 | symbolizer = rule.symbolizers[i]; |
---|
749 | type = symbolizer.CLASS_NAME.split(".").pop(); |
---|
750 | this.writeNode( |
---|
751 | type + "Symbolizer", symbolizer, node |
---|
752 | ); |
---|
753 | } |
---|
754 | } else { |
---|
755 | // add in symbolizers (relies on geometry type keys) |
---|
756 | var types = OpenLayers.Style.SYMBOLIZER_PREFIXES; |
---|
757 | for(var i=0, len=types.length; i<len; ++i) { |
---|
758 | type = types[i]; |
---|
759 | symbolizer = rule.symbolizer[type]; |
---|
760 | if(symbolizer) { |
---|
761 | this.writeNode( |
---|
762 | type + "Symbolizer", symbolizer, node |
---|
763 | ); |
---|
764 | } |
---|
765 | } |
---|
766 | } |
---|
767 | return node; |
---|
768 | |
---|
769 | }, |
---|
770 | "ElseFilter": function() { |
---|
771 | return this.createElementNSPlus("sld:ElseFilter"); |
---|
772 | }, |
---|
773 | "MinScaleDenominator": function(scale) { |
---|
774 | return this.createElementNSPlus( |
---|
775 | "sld:MinScaleDenominator", {value: scale} |
---|
776 | ); |
---|
777 | }, |
---|
778 | "MaxScaleDenominator": function(scale) { |
---|
779 | return this.createElementNSPlus( |
---|
780 | "sld:MaxScaleDenominator", {value: scale} |
---|
781 | ); |
---|
782 | }, |
---|
783 | "LineSymbolizer": function(symbolizer) { |
---|
784 | var node = this.createElementNSPlus("sld:LineSymbolizer"); |
---|
785 | this.writeNode("Stroke", symbolizer, node); |
---|
786 | return node; |
---|
787 | }, |
---|
788 | "Stroke": function(symbolizer) { |
---|
789 | var node = this.createElementNSPlus("sld:Stroke"); |
---|
790 | |
---|
791 | // GraphicFill here |
---|
792 | // GraphicStroke here |
---|
793 | |
---|
794 | // add in CssParameters |
---|
795 | if(symbolizer.strokeColor != undefined) { |
---|
796 | this.writeNode( |
---|
797 | "CssParameter", |
---|
798 | {symbolizer: symbolizer, key: "strokeColor"}, |
---|
799 | node |
---|
800 | ); |
---|
801 | } |
---|
802 | if(symbolizer.strokeOpacity != undefined) { |
---|
803 | this.writeNode( |
---|
804 | "CssParameter", |
---|
805 | {symbolizer: symbolizer, key: "strokeOpacity"}, |
---|
806 | node |
---|
807 | ); |
---|
808 | } |
---|
809 | if(symbolizer.strokeWidth != undefined) { |
---|
810 | this.writeNode( |
---|
811 | "CssParameter", |
---|
812 | {symbolizer: symbolizer, key: "strokeWidth"}, |
---|
813 | node |
---|
814 | ); |
---|
815 | } |
---|
816 | if(symbolizer.strokeDashstyle != undefined && symbolizer.strokeDashstyle !== "solid") { |
---|
817 | // assumes valid stroke-dasharray value |
---|
818 | this.writeNode( |
---|
819 | "CssParameter", |
---|
820 | {symbolizer: symbolizer, key: "strokeDashstyle"}, |
---|
821 | node |
---|
822 | ); |
---|
823 | } |
---|
824 | if(symbolizer.strokeLinecap != undefined) { |
---|
825 | this.writeNode( |
---|
826 | "CssParameter", |
---|
827 | {symbolizer: symbolizer, key: "strokeLinecap"}, |
---|
828 | node |
---|
829 | ); |
---|
830 | } |
---|
831 | return node; |
---|
832 | }, |
---|
833 | "CssParameter": function(obj) { |
---|
834 | // not handling ogc:expressions for now |
---|
835 | return this.createElementNSPlus("sld:CssParameter", { |
---|
836 | attributes: {name: this.getCssProperty(obj.key)}, |
---|
837 | value: obj.symbolizer[obj.key] |
---|
838 | }); |
---|
839 | }, |
---|
840 | "TextSymbolizer": function(symbolizer) { |
---|
841 | var node = this.createElementNSPlus("sld:TextSymbolizer"); |
---|
842 | // add in optional Label |
---|
843 | if(symbolizer.label != null) { |
---|
844 | this.writeNode("Label", symbolizer.label, node); |
---|
845 | } |
---|
846 | // add in optional Font |
---|
847 | if(symbolizer.fontFamily != null || |
---|
848 | symbolizer.fontSize != null || |
---|
849 | symbolizer.fontWeight != null || |
---|
850 | symbolizer.fontStyle != null) { |
---|
851 | this.writeNode("Font", symbolizer, node); |
---|
852 | } |
---|
853 | // add in optional Halo |
---|
854 | if(symbolizer.haloRadius != null || |
---|
855 | symbolizer.haloColor != null || |
---|
856 | symbolizer.haloOpacity != null) { |
---|
857 | this.writeNode("Halo", symbolizer, node); |
---|
858 | } |
---|
859 | // add in optional Fill |
---|
860 | if(symbolizer.fillColor != null || |
---|
861 | symbolizer.fillOpacity != null) { |
---|
862 | this.writeNode("Fill", symbolizer, node); |
---|
863 | } |
---|
864 | return node; |
---|
865 | }, |
---|
866 | "Font": function(symbolizer) { |
---|
867 | var node = this.createElementNSPlus("sld:Font"); |
---|
868 | // add in CssParameters |
---|
869 | if(symbolizer.fontFamily) { |
---|
870 | this.writeNode( |
---|
871 | "CssParameter", |
---|
872 | {symbolizer: symbolizer, key: "fontFamily"}, |
---|
873 | node |
---|
874 | ); |
---|
875 | } |
---|
876 | if(symbolizer.fontSize) { |
---|
877 | this.writeNode( |
---|
878 | "CssParameter", |
---|
879 | {symbolizer: symbolizer, key: "fontSize"}, |
---|
880 | node |
---|
881 | ); |
---|
882 | } |
---|
883 | if(symbolizer.fontWeight) { |
---|
884 | this.writeNode( |
---|
885 | "CssParameter", |
---|
886 | {symbolizer: symbolizer, key: "fontWeight"}, |
---|
887 | node |
---|
888 | ); |
---|
889 | } |
---|
890 | if(symbolizer.fontStyle) { |
---|
891 | this.writeNode( |
---|
892 | "CssParameter", |
---|
893 | {symbolizer: symbolizer, key: "fontStyle"}, |
---|
894 | node |
---|
895 | ); |
---|
896 | } |
---|
897 | return node; |
---|
898 | }, |
---|
899 | "Label": function(label) { |
---|
900 | // only the simplest of ogc:expression handled |
---|
901 | // {label: "some text and a ${propertyName}"} |
---|
902 | var node = this.createElementNSPlus("sld:Label"); |
---|
903 | var tokens = label.split("${"); |
---|
904 | node.appendChild(this.createTextNode(tokens[0])); |
---|
905 | var item, last; |
---|
906 | for(var i=1, len=tokens.length; i<len; i++) { |
---|
907 | item = tokens[i]; |
---|
908 | last = item.indexOf("}"); |
---|
909 | if(last > 0) { |
---|
910 | this.writeNode( |
---|
911 | "ogc:PropertyName", |
---|
912 | {property: item.substring(0, last)}, |
---|
913 | node |
---|
914 | ); |
---|
915 | node.appendChild( |
---|
916 | this.createTextNode(item.substring(++last)) |
---|
917 | ); |
---|
918 | } else { |
---|
919 | // no ending }, so this is a literal ${ |
---|
920 | node.appendChild( |
---|
921 | this.createTextNode("${" + item) |
---|
922 | ); |
---|
923 | } |
---|
924 | } |
---|
925 | return node; |
---|
926 | }, |
---|
927 | "Halo": function(symbolizer) { |
---|
928 | var node = this.createElementNSPlus("sld:Halo"); |
---|
929 | if(symbolizer.haloRadius) { |
---|
930 | this.writeNode("Radius", symbolizer.haloRadius, node); |
---|
931 | } |
---|
932 | if(symbolizer.haloColor || symbolizer.haloOpacity) { |
---|
933 | this.writeNode("Fill", { |
---|
934 | fillColor: symbolizer.haloColor, |
---|
935 | fillOpacity: symbolizer.haloOpacity |
---|
936 | }, node); |
---|
937 | } |
---|
938 | return node; |
---|
939 | }, |
---|
940 | "Radius": function(value) { |
---|
941 | return this.createElementNSPlus("sld:Radius", { |
---|
942 | value: value |
---|
943 | }); |
---|
944 | }, |
---|
945 | "RasterSymbolizer": function(symbolizer) { |
---|
946 | var node = this.createElementNSPlus("sld:RasterSymbolizer"); |
---|
947 | if (symbolizer.geometry) { |
---|
948 | this.writeNode("Geometry", symbolizer.geometry, node); |
---|
949 | } |
---|
950 | if (symbolizer.opacity) { |
---|
951 | this.writeNode("Opacity", symbolizer.opacity, node); |
---|
952 | } |
---|
953 | if (symbolizer.colorMap) { |
---|
954 | this.writeNode("ColorMap", symbolizer.colorMap, node); |
---|
955 | } |
---|
956 | return node; |
---|
957 | }, |
---|
958 | "Geometry": function(geometry) { |
---|
959 | var node = this.createElementNSPlus("sld:Geometry"); |
---|
960 | if (geometry.property) { |
---|
961 | this.writeNode("ogc:PropertyName", geometry, node); |
---|
962 | } |
---|
963 | return node; |
---|
964 | }, |
---|
965 | "ColorMap": function(colorMap) { |
---|
966 | var node = this.createElementNSPlus("sld:ColorMap"); |
---|
967 | for (var i=0, len=colorMap.length; i<len; ++i) { |
---|
968 | this.writeNode("ColorMapEntry", colorMap[i], node); |
---|
969 | } |
---|
970 | return node; |
---|
971 | }, |
---|
972 | "ColorMapEntry": function(colorMapEntry) { |
---|
973 | var node = this.createElementNSPlus("sld:ColorMapEntry"); |
---|
974 | var a = colorMapEntry; |
---|
975 | node.setAttribute("color", a.color); |
---|
976 | a.opacity !== undefined && node.setAttribute("opacity", |
---|
977 | parseFloat(a.opacity)); |
---|
978 | a.quantity !== undefined && node.setAttribute("quantity", |
---|
979 | parseFloat(a.quantity)); |
---|
980 | a.label !== undefined && node.setAttribute("label", a.label); |
---|
981 | return node; |
---|
982 | }, |
---|
983 | "PolygonSymbolizer": function(symbolizer) { |
---|
984 | var node = this.createElementNSPlus("sld:PolygonSymbolizer"); |
---|
985 | if(symbolizer.fill !== false) { |
---|
986 | this.writeNode("Fill", symbolizer, node); |
---|
987 | } |
---|
988 | if(symbolizer.stroke !== false) { |
---|
989 | this.writeNode("Stroke", symbolizer, node); |
---|
990 | } |
---|
991 | return node; |
---|
992 | }, |
---|
993 | "Fill": function(symbolizer) { |
---|
994 | var node = this.createElementNSPlus("sld:Fill"); |
---|
995 | |
---|
996 | // GraphicFill here |
---|
997 | |
---|
998 | // add in CssParameters |
---|
999 | if(symbolizer.fillColor) { |
---|
1000 | this.writeNode( |
---|
1001 | "CssParameter", |
---|
1002 | {symbolizer: symbolizer, key: "fillColor"}, |
---|
1003 | node |
---|
1004 | ); |
---|
1005 | } |
---|
1006 | if(symbolizer.fillOpacity != null) { |
---|
1007 | this.writeNode( |
---|
1008 | "CssParameter", |
---|
1009 | {symbolizer: symbolizer, key: "fillOpacity"}, |
---|
1010 | node |
---|
1011 | ); |
---|
1012 | } |
---|
1013 | return node; |
---|
1014 | }, |
---|
1015 | "PointSymbolizer": function(symbolizer) { |
---|
1016 | var node = this.createElementNSPlus("sld:PointSymbolizer"); |
---|
1017 | this.writeNode("Graphic", symbolizer, node); |
---|
1018 | return node; |
---|
1019 | }, |
---|
1020 | "Graphic": function(symbolizer) { |
---|
1021 | var node = this.createElementNSPlus("sld:Graphic"); |
---|
1022 | if(symbolizer.externalGraphic != undefined) { |
---|
1023 | this.writeNode("ExternalGraphic", symbolizer, node); |
---|
1024 | } else { |
---|
1025 | this.writeNode("Mark", symbolizer, node); |
---|
1026 | } |
---|
1027 | |
---|
1028 | if(symbolizer.graphicOpacity != undefined) { |
---|
1029 | this.writeNode("Opacity", symbolizer.graphicOpacity, node); |
---|
1030 | } |
---|
1031 | if(symbolizer.pointRadius != undefined) { |
---|
1032 | this.writeNode("Size", symbolizer.pointRadius * 2, node); |
---|
1033 | } |
---|
1034 | if(symbolizer.rotation != undefined) { |
---|
1035 | this.writeNode("Rotation", symbolizer.rotation, node); |
---|
1036 | } |
---|
1037 | return node; |
---|
1038 | }, |
---|
1039 | "ExternalGraphic": function(symbolizer) { |
---|
1040 | var node = this.createElementNSPlus("sld:ExternalGraphic"); |
---|
1041 | this.writeNode( |
---|
1042 | "OnlineResource", symbolizer.externalGraphic, node |
---|
1043 | ); |
---|
1044 | var format = symbolizer.graphicFormat || |
---|
1045 | this.getGraphicFormat(symbolizer.externalGraphic); |
---|
1046 | this.writeNode("Format", format, node); |
---|
1047 | return node; |
---|
1048 | }, |
---|
1049 | "Mark": function(symbolizer) { |
---|
1050 | var node = this.createElementNSPlus("sld:Mark"); |
---|
1051 | if(symbolizer.graphicName) { |
---|
1052 | this.writeNode("WellKnownName", symbolizer.graphicName, node); |
---|
1053 | } |
---|
1054 | if (symbolizer.fill !== false) { |
---|
1055 | this.writeNode("Fill", symbolizer, node); |
---|
1056 | } |
---|
1057 | if (symbolizer.stroke !== false) { |
---|
1058 | this.writeNode("Stroke", symbolizer, node); |
---|
1059 | } |
---|
1060 | return node; |
---|
1061 | }, |
---|
1062 | "WellKnownName": function(name) { |
---|
1063 | return this.createElementNSPlus("sld:WellKnownName", { |
---|
1064 | value: name |
---|
1065 | }); |
---|
1066 | }, |
---|
1067 | "Opacity": function(value) { |
---|
1068 | return this.createElementNSPlus("sld:Opacity", { |
---|
1069 | value: value |
---|
1070 | }); |
---|
1071 | }, |
---|
1072 | "Size": function(value) { |
---|
1073 | return this.createElementNSPlus("sld:Size", { |
---|
1074 | value: value |
---|
1075 | }); |
---|
1076 | }, |
---|
1077 | "Rotation": function(value) { |
---|
1078 | return this.createElementNSPlus("sld:Rotation", { |
---|
1079 | value: value |
---|
1080 | }); |
---|
1081 | }, |
---|
1082 | "OnlineResource": function(href) { |
---|
1083 | return this.createElementNSPlus("sld:OnlineResource", { |
---|
1084 | attributes: { |
---|
1085 | "xlink:type": "simple", |
---|
1086 | "xlink:href": href |
---|
1087 | } |
---|
1088 | }); |
---|
1089 | }, |
---|
1090 | "Format": function(format) { |
---|
1091 | return this.createElementNSPlus("sld:Format", { |
---|
1092 | value: format |
---|
1093 | }); |
---|
1094 | } |
---|
1095 | } |
---|
1096 | }, OpenLayers.Format.Filter.v1_0_0.prototype.writers), |
---|
1097 | |
---|
1098 | CLASS_NAME: "OpenLayers.Format.SLD.v1" |
---|
1099 | |
---|
1100 | }); |
---|