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carto: add createLayer and removeLayer methods

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This commit is contained in:
Paul Chavard 2018-10-13 10:32:44 +02:00
parent c6a28d1444
commit 6673467117
1 changed files with 19 additions and 0 deletions
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19
app/javascript/shared/carto.js
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@ -1,5 +1,24 @@
const LON = '2.428462'; const LON = '2.428462';
const LAT = '46.538192'; const LAT = '46.538192';
const DEFAULT_POSITION = { lon: LON, lat: LAT, zoom: 5 }; const DEFAULT_POSITION = { lon: LON, lat: LAT, zoom: 5 };
import L from 'leaflet';
export { DEFAULT_POSITION, LAT, LON }; export { DEFAULT_POSITION, LAT, LON };
const LAYERS = {};
function createLayer(map, layerName) {
const layer = (LAYERS[layerName] = new L.GeoJSON(undefined, {
interactive: false
}));
layer.addTo(map);
return layer;
}
function removeLayer(map, layerName) {
const layer = LAYERS[layerName];
if (layer) {
delete LAYERS[layerName];
map.removeLayer(layer);
}
}