54 lines
1.5 KiB
JavaScript
54 lines
1.5 KiB
JavaScript
goog.provide('ol.source.wms');
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goog.provide('ol.source.wms.ServerType');
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goog.require('goog.asserts');
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goog.require('goog.object');
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goog.require('goog.uri.utils');
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/**
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* @enum {string}
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*/
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ol.source.wms.ServerType = {
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GEOSERVER: 'geoserver',
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MAPSERVER: 'mapserver',
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QGIS: 'qgis'
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};
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/**
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* @param {string} baseUrl WMS base URL.
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* @param {Object.<string, string|number>} params Request parameters.
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* @param {ol.Extent} extent Extent.
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* @param {ol.Size} size Size.
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* @param {ol.proj.Projection} projection Projection.
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* @return {string} WMS GetMap request URL.
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*/
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ol.source.wms.getUrl = function(baseUrl, params, extent, size, projection) {
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var baseParams = {
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'SERVICE': 'WMS',
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'VERSION': '1.3.0',
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'REQUEST': 'GetMap',
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'FORMAT': 'image/png',
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'TRANSPARENT': true,
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'WIDTH': Math.round(size[0]),
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'HEIGHT': Math.round(size[1])
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};
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goog.object.extend(baseParams, params);
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//TODO: Provide our own appendParams function to avoid this empty string hack
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var stylesParam = 'STYLES';
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baseParams[stylesParam] = params[stylesParam] || new String('');
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var wms13 = baseParams['VERSION'] > '1.3';
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baseParams[wms13 ? 'CRS' : 'SRS'] = projection.getCode();
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var axisOrientation = projection.getAxisOrientation();
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var bboxValues = (wms13 && axisOrientation.substr(0, 2) == 'ne') ?
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[extent[1], extent[0], extent[3], extent[2]] :
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[extent[0], extent[1], extent[2], extent[3]];
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baseParams['BBOX'] = bboxValues.join(',');
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return goog.uri.utils.appendParamsFromMap(baseUrl, baseParams);
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};
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