[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/WMC/v1.js |
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| 8 | */ |
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| 9 | |
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| 10 | /** |
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| 11 | * Class: OpenLayers.Format.WMC.v1_1_0 |
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| 12 | * Read and write WMC version 1.1.0. |
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| 13 | * |
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| 14 | * Differences between 1.1.0 and 1.0.0: |
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| 15 | * - 1.1.0 Layers have optional sld:MinScaleDenominator and |
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| 16 | * sld:MaxScaleDenominator |
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| 17 | * |
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| 18 | * Inherits from: |
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| 19 | * - <OpenLayers.Format.WMC.v1> |
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| 20 | */ |
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| 21 | OpenLayers.Format.WMC.v1_1_0 = OpenLayers.Class( |
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| 22 | OpenLayers.Format.WMC.v1, { |
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| 23 | |
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| 24 | /** |
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| 25 | * Constant: VERSION |
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| 26 | * {String} 1.1.0 |
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| 27 | */ |
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| 28 | VERSION: "1.1.0", |
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| 29 | |
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| 30 | /** |
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| 31 | * Property: schemaLocation |
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| 32 | * {String} http://www.opengis.net/context |
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| 33 | * http://schemas.opengis.net/context/1.1.0/context.xsd |
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| 34 | */ |
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| 35 | schemaLocation: "http://www.opengis.net/context http://schemas.opengis.net/context/1.1.0/context.xsd", |
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| 36 | |
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| 37 | /** |
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| 38 | * Constructor: OpenLayers.Format.WMC.v1_1_0 |
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| 39 | * Instances of this class are not created directly. Use the |
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| 40 | * <OpenLayers.Format.WMC> constructor instead. |
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| 41 | * |
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| 42 | * Parameters: |
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| 43 | * options - {Object} An optional object whose properties will be set on |
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| 44 | * this instance. |
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| 45 | */ |
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| 46 | initialize: function(options) { |
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| 47 | OpenLayers.Format.WMC.v1.prototype.initialize.apply( |
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| 48 | this, [options] |
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| 49 | ); |
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| 50 | }, |
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| 51 | |
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| 52 | /** |
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| 53 | * Method: read_sld_MinScaleDenominator |
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| 54 | * Read a sld:MinScaleDenominator node. |
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| 55 | * |
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| 56 | * Parameters: |
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| 57 | * layerContext - {Object} An object representing a layer. |
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| 58 | * node - {Element} An element node. |
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| 59 | */ |
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| 60 | read_sld_MinScaleDenominator: function(layerContext, node) { |
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| 61 | var minScaleDenominator = parseFloat(this.getChildValue(node)); |
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| 62 | if (minScaleDenominator > 0) { |
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| 63 | layerContext.maxScale = minScaleDenominator; |
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| 64 | } |
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| 65 | }, |
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| 66 | |
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| 67 | /** |
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| 68 | * Method: read_sld_MaxScaleDenominator |
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| 69 | * Read a sld:MaxScaleDenominator node. |
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| 70 | * |
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| 71 | * Parameters: |
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| 72 | * layerContext - {Object} An object representing a layer. |
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| 73 | * node - {Element} An element node. |
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| 74 | */ |
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| 75 | read_sld_MaxScaleDenominator: function(layerContext, node) { |
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| 76 | layerContext.minScale = parseFloat(this.getChildValue(node)); |
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| 77 | }, |
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| 78 | |
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| 79 | /** |
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| 80 | * Method: write_wmc_Layer |
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| 81 | * Create a Layer node given a layer context object. This method adds |
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| 82 | * elements specific to version 1.1.0. |
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| 83 | * |
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| 84 | * Parameters: |
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| 85 | * context - {Object} A layer context object.} |
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| 86 | * |
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| 87 | * Returns: |
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| 88 | * {Element} A WMC Layer element node. |
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| 89 | */ |
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| 90 | write_wmc_Layer: function(context) { |
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| 91 | var node = OpenLayers.Format.WMC.v1.prototype.write_wmc_Layer.apply( |
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| 92 | this, [context] |
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| 93 | ); |
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| 94 | |
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| 95 | // min/max scale denominator elements go before the 4th element in v1 |
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| 96 | if(context.maxScale) { |
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| 97 | var minSD = this.createElementNS( |
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| 98 | this.namespaces.sld, "sld:MinScaleDenominator" |
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| 99 | ); |
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| 100 | minSD.appendChild(this.createTextNode(context.maxScale.toPrecision(16))); |
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| 101 | node.appendChild(minSD); |
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| 102 | } |
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| 103 | |
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| 104 | if(context.minScale) { |
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| 105 | var maxSD = this.createElementNS( |
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| 106 | this.namespaces.sld, "sld:MaxScaleDenominator" |
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| 107 | ); |
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| 108 | maxSD.appendChild(this.createTextNode(context.minScale.toPrecision(16))); |
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| 109 | node.appendChild(maxSD); |
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| 110 | } |
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| 111 | |
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| 112 | // optional FormatList element |
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| 113 | node.appendChild(this.write_wmc_FormatList(context)); |
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| 114 | |
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| 115 | // optional StyleList element |
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| 116 | node.appendChild(this.write_wmc_StyleList(context)); |
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| 117 | |
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| 118 | // OpenLayers specific properties go in an Extension element |
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| 119 | node.appendChild(this.write_wmc_LayerExtension(context)); |
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| 120 | |
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| 121 | return node; |
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| 122 | |
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| 123 | }, |
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| 124 | |
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| 125 | CLASS_NAME: "OpenLayers.Format.WMC.v1_1_0" |
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| 126 | |
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| 127 | }); |
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