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Getting the number of layers in Leaflet
How to change Leaflet Map panes layering order (z-index)?Add simple image layers to MapBox / Leaflet?Adding multiple cartodb layers in viz.json to Leaflet layer control?Removing added layer using leaflet and CartodbIs it possible to put a raster layer on a shifted Chinese basemap using leaflet API?Leaflet Vector Layers (lvector.js) not working in layercontrolLeaflet Remove filtered layerMap IDs to add Mapbox basemaps to Leaflet or OpenLayersLeaflet minimap plugin setView conflictLeaflet API - select one overlay at a time like base layers
There does not seem to be a command to get the number of layers in the map, or am I missing it?
One way to count the layers would be:
Object.keys(map._layers).length
Or is there another preferred way? For instance, I would be interested in finding out how many vectors or how many basemaps have been added to the map, and I am not sure how to achieve that via the above snippet.
leaflet
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
add a comment |
There does not seem to be a command to get the number of layers in the map, or am I missing it?
One way to count the layers would be:
Object.keys(map._layers).length
Or is there another preferred way? For instance, I would be interested in finding out how many vectors or how many basemaps have been added to the map, and I am not sure how to achieve that via the above snippet.
leaflet
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
add a comment |
There does not seem to be a command to get the number of layers in the map, or am I missing it?
One way to count the layers would be:
Object.keys(map._layers).length
Or is there another preferred way? For instance, I would be interested in finding out how many vectors or how many basemaps have been added to the map, and I am not sure how to achieve that via the above snippet.
leaflet
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
There does not seem to be a command to get the number of layers in the map, or am I missing it?
One way to count the layers would be:
Object.keys(map._layers).length
Or is there another preferred way? For instance, I would be interested in finding out how many vectors or how many basemaps have been added to the map, and I am not sure how to achieve that via the above snippet.
leaflet
leaflet
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
asked Dec 11 '17 at 11:46
BritishSteelBritishSteel
4,17911840
4,17911840
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Leaflet's public API has an eachLayer method for the Map class:
let i = 0;
map.eachLayer(function(){ i += 1; });
console.log('Map has', i, 'layers.');
Please note that eachLayer will properly iterate through layers inside a L.LayerGroup, L.FeatureGroup and L.GeoJson.
Also note that .getLayers() works for LayerGroup (and FeatureGroup and GeoJson), but not for L.Map.
Usage of "private" properties and methods like _layers or _leaflet_id or _latlng is discouraged.
edited 8 mins ago
meetar
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
add a comment |
If you mean of features in a layer try:
console.log(myRoadLayer.getLayers().length + " Features in the Roads Layer");
If you mean BaseMaps like "Aerial", "Streets", "Topo" you define what you want in your map. Likewise overlay layers like, "Roads", "Water", "Parcels" are also defined in the creation of your map.
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Leaflet's public API has an eachLayer method for the Map class:
let i = 0;
map.eachLayer(function(){ i += 1; });
console.log('Map has', i, 'layers.');
Please note that eachLayer will properly iterate through layers inside a L.LayerGroup, L.FeatureGroup and L.GeoJson.
Also note that .getLayers() works for LayerGroup (and FeatureGroup and GeoJson), but not for L.Map.
Usage of "private" properties and methods like _layers or _leaflet_id or _latlng is discouraged.
edited 8 mins ago
meetar
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
add a comment |
Leaflet's public API has an eachLayer method for the Map class:
let i = 0;
map.eachLayer(function(){ i += 1; });
console.log('Map has', i, 'layers.');
Please note that eachLayer will properly iterate through layers inside a L.LayerGroup, L.FeatureGroup and L.GeoJson.
Also note that .getLayers() works for LayerGroup (and FeatureGroup and GeoJson), but not for L.Map.
Usage of "private" properties and methods like _layers or _leaflet_id or _latlng is discouraged.
edited 8 mins ago
meetar
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
add a comment |
Leaflet's public API has an eachLayer method for the Map class:
let i = 0;
map.eachLayer(function(){ i += 1; });
console.log('Map has', i, 'layers.');
Please note that eachLayer will properly iterate through layers inside a L.LayerGroup, L.FeatureGroup and L.GeoJson.
Also note that .getLayers() works for LayerGroup (and FeatureGroup and GeoJson), but not for L.Map.
Usage of "private" properties and methods like _layers or _leaflet_id or _latlng is discouraged.
edited 8 mins ago
meetar
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
Leaflet's public API has an eachLayer method for the Map class:
let i = 0;
map.eachLayer(function(){ i += 1; });
console.log('Map has', i, 'layers.');
Please note that eachLayer will properly iterate through layers inside a L.LayerGroup, L.FeatureGroup and L.GeoJson.
Also note that .getLayers() works for LayerGroup (and FeatureGroup and GeoJson), but not for L.Map.
Usage of "private" properties and methods like _layers or _leaflet_id or _latlng is discouraged.
edited 8 mins ago
meetar
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
edited 8 mins ago
meetar
218128
edited 8 mins ago
meetar
218128
edited 8 mins ago
meetar
218128
218128
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
answered Dec 11 '17 at 14:20
IvanSanchezIvanSanchez
6,0331619
6,0331619
add a comment |
add a comment |
If you mean of features in a layer try:
console.log(myRoadLayer.getLayers().length + " Features in the Roads Layer");
If you mean BaseMaps like "Aerial", "Streets", "Topo" you define what you want in your map. Likewise overlay layers like, "Roads", "Water", "Parcels" are also defined in the creation of your map.
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
add a comment |
If you mean of features in a layer try:
console.log(myRoadLayer.getLayers().length + " Features in the Roads Layer");
If you mean BaseMaps like "Aerial", "Streets", "Topo" you define what you want in your map. Likewise overlay layers like, "Roads", "Water", "Parcels" are also defined in the creation of your map.
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
add a comment |
If you mean of features in a layer try:
console.log(myRoadLayer.getLayers().length + " Features in the Roads Layer");
If you mean BaseMaps like "Aerial", "Streets", "Topo" you define what you want in your map. Likewise overlay layers like, "Roads", "Water", "Parcels" are also defined in the creation of your map.
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
If you mean of features in a layer try:
console.log(myRoadLayer.getLayers().length + " Features in the Roads Layer");
If you mean BaseMaps like "Aerial", "Streets", "Topo" you define what you want in your map. Likewise overlay layers like, "Roads", "Water", "Parcels" are also defined in the creation of your map.
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
answered Dec 11 '17 at 13:23
Bill ChappellBill Chappell
2,6661815
2,6661815
add a comment |
add a comment |
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