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Cope with axis orientation for tiled WMS sources

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This commit is contained in:
Tom Payne
2013-02-21 20:22:28 +01:00
parent 6b26cbfb38
commit 66e5b1d736
3 changed files with 24 additions and 9 deletions
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13
src/ol/tileurlfunction.js
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@@ -73,19 +73,20 @@ ol.TileUrlFunction.createFromTileUrlFunctions = function(tileUrlFunctions) {
/**
* @param {string} baseUrl Base URL (may have query data).
* @param {ol.tilegrid.TileGrid} tileGrid Tile grid.
* @param {string} axisOrientation Axis orientation.
* @return {ol.TileUrlFunctionType} Tile URL function.
*/
ol.TileUrlFunction.createBboxParam = function(baseUrl, tileGrid) {
ol.TileUrlFunction.createBboxParam =
function(baseUrl, tileGrid, axisOrientation) {
return function(tileCoord) {
if (goog.isNull(tileCoord)) {
return undefined;
} else {
var tileExtent = tileGrid.getTileCoordExtent(tileCoord);
// FIXME Projection dependant axis order.
var bboxValue = [
tileExtent.minX, tileExtent.minY, tileExtent.maxX, tileExtent.maxY
].join(',');
return goog.uri.utils.appendParam(baseUrl, 'BBOX', bboxValue);
var bboxValues = axisOrientation.substr(0, 2) == 'ne' ?
[tileExtent.minY, tileExtent.minX, tileExtent.maxY, tileExtent.maxX] :
[tileExtent.minX, tileExtent.minY, tileExtent.maxX, tileExtent.maxY];
return goog.uri.utils.appendParam(baseUrl, 'BBOX', bboxValues.join(','));
}
};
};