Files
openlayers/src/ol/imageurlfunction.js
ahocevar 586f393492 Support tile sources without configured projection
This change adds a lot of flexibility to working with tile
layers: Sources where the server projection or tile grid do not
matter can now be constructed without specifying a projection or
tile grid.

The tileUrlFunction/imageUrlFunction now also creates updated
URLs when the params of the layer change, so things like
mergeNewParams in ol2 will be possible.

A nice side effect of this whole change is that there is no more
duplicated code between tiled and single image WMS layers.

While I was at it, I also fixed a WMS 1.1.1 axis order issue
and incorrect STYLES params (STYLES=& instead of STYLES&).
2013-03-05 00:46:58 +01:00

39 lines
961 B
JavaScript

goog.provide('ol.ImageUrlFunction');
goog.provide('ol.ImageUrlFunctionType');
goog.require('ol.Extent');
goog.require('ol.Size');
goog.require('ol.source.wms');
/**
* @typedef {function(ol.Extent, ol.Size, ol.Projection): (string|undefined)}
*/
ol.ImageUrlFunctionType;
/**
* @param {string} baseUrl Base URL (may have query data).
* @param {Object.<string, string|number>} params WMS parameters.
* @param {string=} opt_version WMS version.
* @return {ol.ImageUrlFunctionType} Image URL function.
*/
ol.ImageUrlFunction.createWMSParams =
function(baseUrl, params, opt_version) {
return function(extent, size, projection) {
return ol.source.wms.getUrl(
baseUrl, params, extent, size, projection, opt_version);
};
};
/**
* @param {ol.Extent} extent Extent.
* @param {ol.Size} size Size.
* @return {string|undefined} Image URL.
*/
ol.ImageUrlFunction.nullImageUrlFunction =
function(extent, size) {
return undefined;
};