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basemap-bing plugin: dynamic creation of bing map layer - in theory should reduce usage

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Jon Atkins 2013-12-06 08:36:50 +00:00
parent 231178123f
commit aae16d2c1b
1 changed files with 27 additions and 4 deletions
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29
plugins/basemap-bing.user.js
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@ -2,7 +2,7 @@
// @id iitc-plugin-bing-maps // @id iitc-plugin-bing-maps
// @name IITC plugin: Bing maps // @name IITC plugin: Bing maps
// @category Map Tiles // @category Map Tiles
// @version 0.1.1.@@DATETIMEVERSION@@ // @version 0.1.2.@@DATETIMEVERSION@@
// @namespace https://github.com/jonatkins/ingress-intel-total-conversion // @namespace https://github.com/jonatkins/ingress-intel-total-conversion
// @updateURL @@UPDATEURL@@ // @updateURL @@UPDATEURL@@
// @downloadURL @@DOWNLOADURL@@ // @downloadURL @@DOWNLOADURL@@
@ -37,12 +37,35 @@ window.plugin.mapBing.setup = function() {
'AerialWithLabels': "Aerial with labels", 'AerialWithLabels': "Aerial with labels",
}; };
// bing maps has an annual usage limit, which will likely be hit in 6 months at this time.
// it seems that the usage is counted on initialising the L.BingLayer, when the metadata is retrieved.
// so, we'll create some dummy layers and add those to the map, then, the first time a layer is added,
// create the L.BingLayer. This will eliminate all usage for users who install but don't use the map,
// and only create usage for the map layers actually selected in use
var bingMapContainers = [];
for (type in bingTypes) { for (type in bingTypes) {
var name = bingTypes[type]; var name = bingTypes[type];
var bingMap = new L.BingLayer(bingApiKey, {type: type, maxZoom:20});
layerChooser.addBaseLayer(bingMap, 'Bing '+name); bingMapContainers[type] = new L.LayerGroup();
layerChooser.addBaseLayer(bingMapContainers[type], 'Bing '+name);
} }
// now a leaflet event to catch base layer changes and create a L.BingLayer when needed
map.on('baselayerchange', function(e) {
for (type in bingMapContainers) {
if (e.layer == bingMapContainers[type]) {
if (bingMapContainers[type].getLayers().length == 0) {
// dummy layer group is empty - create the bing layer
console.log('basemap-bing: creating '+type+' layer');
var bingMap = new L.BingLayer (bingApiKey, {type: type, maxZoom:20});
bingMapContainers[type].addLayer(bingMap);
}
}
}
});
}; };
var setup = window.plugin.mapBing.setup; var setup = window.plugin.mapBing.setup;