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/* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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* full list of contributors). Published under the Clear BSD license. |
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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* full text of the license. */ |
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/** |
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* @requires OpenLayers/Format/WMC/v1.js |
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*/ |
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/** |
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* Class: OpenLayers.Format.WMC.v1_1_0 |
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* Read and write WMC version 1.1.0. |
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* |
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* Differences between 1.1.0 and 1.0.0: |
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* - 1.1.0 Layers have optional sld:MinScaleDenominator and |
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* sld:MaxScaleDenominator |
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* |
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* Inherits from: |
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* - <OpenLayers.Format.WMC.v1> |
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*/ |
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OpenLayers.Format.WMC.v1_1_0 = OpenLayers.Class( |
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OpenLayers.Format.WMC.v1, { |
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/** |
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* Constant: VERSION |
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* {String} 1.1.0 |
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*/ |
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VERSION: "1.1.0", |
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/** |
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* Property: schemaLocation |
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* {String} http://www.opengis.net/context |
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* http://schemas.opengis.net/context/1.1.0/context.xsd |
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*/ |
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schemaLocation: "http://www.opengis.net/context http://schemas.opengis.net/context/1.1.0/context.xsd", |
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/** |
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* Constructor: OpenLayers.Format.WMC.v1_1_0 |
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* Instances of this class are not created directly. Use the |
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* <OpenLayers.Format.WMC> constructor instead. |
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* |
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* Parameters: |
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* options - {Object} An optional object whose properties will be set on |
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* this instance. |
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*/ |
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initialize: function(options) { |
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OpenLayers.Format.WMC.v1.prototype.initialize.apply( |
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this, [options] |
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); |
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}, |
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/** |
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* Method: read_sld_MinScaleDenominator |
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* Read a sld:MinScaleDenominator node. |
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* |
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* Parameters: |
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* layerContext - {Object} An object representing a layer. |
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* node - {Element} An element node. |
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*/ |
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read_sld_MinScaleDenominator: function(layerContext, node) { |
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var minScaleDenominator = parseFloat(this.getChildValue(node)); |
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if (minScaleDenominator > 0) { |
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layerContext.maxScale = minScaleDenominator; |
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} |
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}, |
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/** |
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* Method: read_sld_MaxScaleDenominator |
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* Read a sld:MaxScaleDenominator node. |
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* |
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* Parameters: |
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* layerContext - {Object} An object representing a layer. |
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* node - {Element} An element node. |
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*/ |
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read_sld_MaxScaleDenominator: function(layerContext, node) { |
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layerContext.minScale = parseFloat(this.getChildValue(node)); |
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}, |
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/** |
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* Method: write_wmc_Layer |
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* Create a Layer node given a layer context object. This method adds |
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* elements specific to version 1.1.0. |
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* |
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* Parameters: |
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* context - {Object} A layer context object.} |
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* |
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* Returns: |
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* {Element} A WMC Layer element node. |
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*/ |
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write_wmc_Layer: function(context) { |
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var node = OpenLayers.Format.WMC.v1.prototype.write_wmc_Layer.apply( |
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this, [context] |
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); |
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// min/max scale denominator elements go before the 4th element in v1 |
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if(context.maxScale) { |
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var minSD = this.createElementNS( |
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this.namespaces.sld, "sld:MinScaleDenominator" |
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); |
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minSD.appendChild(this.createTextNode(context.maxScale.toPrecision(16))); |
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node.appendChild(minSD); |
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} |
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if(context.minScale) { |
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var maxSD = this.createElementNS( |
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this.namespaces.sld, "sld:MaxScaleDenominator" |
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); |
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maxSD.appendChild(this.createTextNode(context.minScale.toPrecision(16))); |
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node.appendChild(maxSD); |
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} |
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// optional FormatList element |
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node.appendChild(this.write_wmc_FormatList(context)); |
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// optional StyleList element |
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node.appendChild(this.write_wmc_StyleList(context)); |
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// OpenLayers specific properties go in an Extension element |
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node.appendChild(this.write_wmc_LayerExtension(context)); |
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return node; |
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}, |
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CLASS_NAME: "OpenLayers.Format.WMC.v1_1_0" |
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}); |
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