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getGetLegendRequestUrl accepts a LAYER parameter now

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simonseyock
2019-08-07 15:15:53 +02:00
committed by Simon Seyock
parent b2885e86fb
commit 89e8d6d693
4 changed files with 36 additions and 18 deletions
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22
src/ol/source/TileWMS.js
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@@ -219,15 +219,15 @@ class TileWMS extends TileImage {
*
* @param {number} [resolution] Resolution. If set to undefined, `SCALE`
* will not be calculated and included in URL.
* @param {Object} [params] GetLegendGraphic params. Default `FORMAT` is
* `image/png`. `VERSION` should not be specified here.
* @param {Object} [params] GetLegendGraphic params. If `LAYER` is set, the
* request is generated for this wms layer, else it will try to use the
* configured wms layer. Default `FORMAT` is `image/png`.
* `VERSION` should not be specified here.
* @return {string|undefined} GetLegendGraphic URL.
* @api
*/
getLegendUrl(resolution, params) {
const layers = this.params_.LAYERS;
const isSingleLayer = !Array.isArray(layers) || this.params_['LAYERS'].length === 1;
if (this.urls[0] === undefined || !isSingleLayer) {
if (this.urls[0] === undefined) {
return undefined;
}
@@ -235,10 +235,18 @@ class TileWMS extends TileImage {
'SERVICE': 'WMS',
'VERSION': DEFAULT_WMS_VERSION,
'REQUEST': 'GetLegendGraphic',
'FORMAT': 'image/png',
'LAYER': layers
'FORMAT': 'image/png'
};
if (params === undefined || params['LAYER'] === undefined) {
const layers = this.params_.LAYERS;
const isSingleLayer = !Array.isArray(layers) || layers.length === 1;
if (!isSingleLayer) {
return undefined;
}
baseParams['LAYER'] = layers;
}
if (resolution !== undefined) {
const mpu = this.getProjection() ? this.getProjection().getMetersPerUnit() : 1;
const dpi = 25.4 / 0.28;