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Sort matrixIds by scaleDenominator

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We cannot assume that the matrixIds are ordered in the matrixSet. For example, they're not ordered in http://wxs.ign.fr/cle/geoportail/wmts?SERVICE=WMTS&REQUEST=GetCapabilities.
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Éric Lemoine
2013-06-21 15:26:03 +02:00
parent e6e98a6ca2
commit a19cb9ca64
1 changed files with 22 additions and 6 deletions
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28
src/ol/tilegrid/wmtstilegrid.js
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@@ -66,15 +66,31 @@ ol.tilegrid.WMTS.createFromCapabilitiesMatrixSet =
var matrixIds = [];
var origins = [];
var tileSizes = [];
var projection = ol.proj.get(matrixSet['supportedCRS']);
var supportedCRSPropName = 'supportedCRS';
var matrixIdsPropName = 'matrixIds';
var identifierPropName = 'identifier';
var scaleDenominatorPropName = 'scaleDenominator';
var topLeftCornerPropName = 'topLeftCorner';
var tileWidthPropName = 'tileWidth';
var tileHeightPropName = 'tileHeight';
var projection = ol.proj.get(matrixSet[supportedCRSPropName]);
var metersPerUnit = projection.getMetersPerUnit();
goog.array.forEach(matrixSet['matrixIds'], function(elt, index, array) {
matrixIds.push(elt['identifier']);
origins.push(elt['topLeftCorner']);
resolutions.push(elt['scaleDenominator'] * 0.28E-3 / metersPerUnit);
tileSizes.push([elt['tileWidth'], elt['tileHeight']]);
goog.array.sort(matrixSet[matrixIdsPropName], function(a, b) {
return b[scaleDenominatorPropName] - a[scaleDenominatorPropName];
});
goog.array.forEach(matrixSet[matrixIdsPropName],
function(elt, index, array) {
matrixIds.push(elt[identifierPropName]);
origins.push(elt[topLeftCornerPropName]);
resolutions.push(elt[scaleDenominatorPropName] * 0.28E-3 /
metersPerUnit);
tileSizes.push([elt[tileWidthPropName], elt[tileHeightPropName]]);
});
return new ol.tilegrid.WMTS({
origins: origins,
resolutions: resolutions,