An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps
1
vote
1answer
477 views
What is the default projection in Leaflet?
I've read an API documentation for Leaflet on its site, but I can't realize: what is a default projection to view maps? It was written about spherical and elliptical Mercator and Equirectangular - so ...
3
votes
1answer
432 views
Click link inside Leaflet Popup and do javascript
I have a leaflet map up and running. It overlays a series of polygons (via GeoJSON) on the map and attaches popups to each polygon. Each of the popups display information about that polygon.
I'd ...
0
votes
1answer
141 views
In leaflet does the addControl automatically handle events via the leaflet API?
I need to add additional overlay layers to be controlled by the controls within the leaflet map boundaries, but the code utilizes a leaflet-custom.js file. I am assuming it handles the event and ...
8
votes
3answers
315 views
Chart inside pop up window in Javascript
How to show a chart inside pop up window? I'm using Leaflet JS, which has support for raphael plugin http://dynmeth.github.com/RaphaelLayer/. Is it possible to create a div inside popup window? I was ...
0
votes
0answers
99 views
leaflet: Zooming a tile cache
I have a NASA BlueMarble tile layer that goes from zoom factors 0-8. I when I go to zoom level 9, I do see a momentary scaling to 9 (stretching pixels). But then, as expected, I get the errorTileUrl. ...
1
vote
1answer
179 views
Is it possible to use Leaflet, PostGIS and PGRouting for web mapping?
I am newbie at Open Source GIS. I have already create a web mapping using custom tiles and leaflet. I have used my my own database. Tilemill was used to create the tiles and leaflet was used to ...
4
votes
1answer
228 views
Existing ArcGIS Rest Services - What platform to use for building mapping application?
I have clients that have an existing ArcGIS Server. Map layers are published as rest services and I am going to build a mapping application that displays their datasets. Functionality should include ...
1
vote
1answer
66 views
Is a new map object required in order to create a wms overlay on top of a current map object with wfs layers using the leaflet api
I am trying to add a wms tile layer overlay over a wfs tile layer which I added to a map object. When I tried to simply add a layer on top of my current setView for my map object it overwrote the ...
4
votes
1answer
2k views
How to show a popup on mouse-over, not on click?
Is it possible in Leaflet that popup opens on mouse-over, not on click?
This is working for just one marker at a time, but I need it for a bigger number of markers:
marker.on('mouseover', ...
1
vote
1answer
174 views
Is it possible to show migration arrows on Leaflet map?
I need to develop Leaflet map which will show the whole world. Also, I need to draw some arrows which will show paths of migrations in the world. The important thing to say that those arrows need to ...
2
votes
0answers
145 views
Leaflet: how to draw curved lines?
So, I'm trying to draw curved lines in my application which is based on a Leaflet map.
As far as I know Leaflet does not support drawing curved lines at the moment, so my question is really more ...
0
votes
0answers
20 views
How to get latlong in leaflet on Mouse Over? [duplicate]
Possible Duplicate:
How to get the Lat, Long of a clicked location using Leaflet API?
I am using Leaflet JS library. I want to put an option in the map. I want to create a simple info div ...
1
vote
0answers
136 views
Raster Over Layer in Leaflet from GeoServer
I want to add a raster over layer onto the base layer and the raster layer is published by a Geoserver WMS. I set the raster layer's geographic coordinate system as the same as the cloudmate tiles. ...
0
votes
0answers
201 views
How to deal Leaflet map control checkboxes
I add some geojson layers to the map control once a layer is loaded and the control can show all the layer names. But I notice that all the checkboxes are unchecked by default. So that once I click ...
0
votes
1answer
2k views
How do I overlay a KML on leaflet 0.4.4
I am using Leaflet 0.4.4,
I have a KML I would like to overlay on the map, how do I go about doing this?
Edit: I am already aware of https://github.com/CloudMade/Leaflet/issues/14, which directs ...
1
vote
0answers
170 views
Allowing Add/Delete/Update of features (web application): OpenLayers + WFS and GeoServer?
I've developed a WPF application that has a custom SQL Server database and uses the Esri ArcGIS WPF API to allow users to view, edit and query shapes (features) on a custom map. Maps are created from ...
1
vote
2answers
384 views
How to label GeoJSON polygons?
I'm using Leaflet combined with GeoJSON features. Is there a way to label GeoJSON features (in this case - polygons)? It should get labels from
feature.properties.name
This is my code where I ...
-1
votes
2answers
89 views
Go to the URL on click with GeoJSON
I'm using Leaflet API and geojson. I defined a function which zooms to the feature when clicked:
function zoomToFeature(e) {
map.fitBounds(e.target.getBounds());
}
function ...
0
votes
0answers
64 views
How do I determine programmatically what values to add to the proj4js constructor for a CRS or SRS such that I can iteratively render proper overlays
I think this is primarily a GIS based question as far as for example:
var crs = L.CRS.proj4js('EPSG:2154',
'+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 ...
1
vote
1answer
271 views
How do I project my WMS tilelayer in leaflet if I want it to display as an overlay on my basemap if they have different EPSG?
So my basemap is a world Mercator projection and in wfs format and I'm trying to put a WMS overlay in a different projection over it? Leaflet's API didn't give me much info on changing the epsg so is ...
1
vote
0answers
107 views
When I try to do a WMS request to geoserver using the leaflet API I am getting a format related error
This XML file does not appear to have any style information associated with it. The
document tree is shown below.
<ows:ExceptionReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
...
5
votes
2answers
2k views
Adding/Removing Leaflet GeoJSON layers
I'm trying to show different GeoJSON layers at different zoom layers using the Leaflet API. I can load and display all three layers at once (though I don't actually want them all to show at once). I ...
1
vote
1answer
278 views
How to preload tiles in Leaflet?
I'm trying to make a user controlled cross-layer animation in Leaflet.
I have about 70 tileLayer.wms layers, that need to be preloaded on the map before animation can run.
The question is - is there ...
4
votes
1answer
578 views
Leaflet: How to move the layer-control menu?
This might be a silly question, but I could not find a documented way to achieve this.
I'd like to freely position the layer-control menu, probably to the top left near the default zoom-in/out ...
1
vote
1answer
321 views
Does leaflet support wms tile layers in applications/openlayers formats?
I am trying to create a tilelayer.wms overlay on top of a wfs base map and I wasn't sure whether leaflet allows the applications/openlayers type of format which I served up from geoserver or only ...
0
votes
1answer
47 views
What kind of different results or what is the difference between two URL based WMS requests [closed]
I am trying to retrieve some WMS layers from geoserver so that I can display them in leaflet and I need to populate a URL field and I noticed that many of the layers that I opened up in openlayers had ...
2
votes
0answers
98 views
How do I format tilelayer.wms url properties such that I add an overlay iteratively to my base map in leaflet
My base map was created using hard-coded template variables. I am using the leaflet tilelayer.wms constructor and including the url like so:
url: ...
3
votes
0answers
106 views
Is it possible to create filters based on attributes for markers in Leaflet?
I need to create filters based on attributes of markers. I have markers defined this way:
var locations = [
['AB11 5HW','17','A',57.147701,-2.085442 ] ,
['AB11 8DG','3','B',57.129372,-2.090916 ] ...
4
votes
0answers
77 views
How to download Leaflet vectors in GPX format?
I would like to use the leaflet.draw plugin to allow users to digitize vectors on the map. At the end the data should be downloadable as a GPX-file.
Is there any sample that shows how this can be ...
0
votes
1answer
800 views
location of a dragged and dropped marker using leaflet
i am using leaflet API with OSM. I need to implement a functionality where on dragging the marker and dropping it on user preferred location , i need to get its latitude and longitude and save its ...
3
votes
1answer
1k views
How to add a geoJSON layer to leaflet map?
i am newbie in leaflet & its geojson features...
I am trying to test leaflet's functionalities. In fact i have built a map and its layer:
var map = new L.map('map', {scrollWheelZoom:true, ...
5
votes
1answer
478 views
Working examples of Leaflet/Polymaps with GeoJSON tiles generated from Tilestache using Shapefiles?
I'm looking to create choropleths using GeoJSON tiles generated from ESRI Shapefiles by TileStache(or similar), in either Leaflet or Polymaps. So far reading and drawing GeoJSON from both Leaflet and ...
6
votes
3answers
4k views
Creating a Bing and Google Tile Layer for Leaflet
I want to use the Leaflet Javascript Library to display both a Google and Bing Tile Layer, though I'm unsure how to construct the url. The documentation shows an example using OSM:
var cloudmadeUrl = ...
2
votes
1answer
570 views
How to setup leaflet map to display a WMS layer in ESRI:102012 projection?
I have a WMS server that serves layers in ESRI:102012 projection.
http://spatialreference.org/ref/esri/102012/
It accepts GetMap requests with srs=EPSG:102012 parameter.
My goal is to display a map ...
3
votes
0answers
329 views
leaflet - Drawing line following the road
Short version:
What I wish to be able to do is drawing a polyline along part of a road. In that way marking certain houses, along this road.
Long Version:
I have several houses that I wish to mark ...
-2
votes
1answer
176 views
how to customize the marker using leaflet
I am adding markers to the map as below:
var markers = new L.LayerGroup();
L.marker([Latitude], [Longitude]).bindPopup("Hi there").addTo(markers);
map.addLayer(markers);
I have my own marker ...
3
votes
0answers
282 views
How to serve OpenStreetMap Tiles locally using ArcGIS Server 10?
We want to serve OpenStreetMap Tiles locally using ArcGis Server 10 to use as base maps in our ESRI Silverlight and Flex GIS clients.
We've downloaded our regions OSM file and created PNGs using ...
1
vote
1answer
124 views
Is it necessary to add Tile layer background?
Is it necessary to add tile layer for making a GeoJSON data rendered in web browser using Leaflet or any other API ?
I have a geoJSON data (I obtained the GeoJSON data by converting .shp file to ...
2
votes
1answer
284 views
formatting geojson from postgis data using node.js
I am trying to build a GeoJSON object from a SQL query to some GIS point data in a postgis postgresql database. A snippet of my node.js app.js is below.
As it stands I understand building the type ...
9
votes
4answers
632 views
Visualizing large datasets with Leaflet
When using Leaflet to visualize a large dataset (GeoJSON with 10,000 point features), not surprisingly the browser crashes or hangs. A sub-sample of 1000 features from the same dataset works ...
2
votes
1answer
987 views
Leaflet marker cluster and popups
I want to develop a map with Leaflet marker cluster. You can see how it looks like here: https://github.com/danzel/Leaflet.markercluster
But I need that my markers have popups with more information ...
4
votes
1answer
446 views
Leaflet drop markers animation
Is it possible to do drop markers on the map like in google maps (https://google-developers.appspot.com/maps/documentation/javascript/examples/marker-animations-iteration) in leaflet
1
vote
0answers
206 views
Leaflet markers do not open popup on click (with markerclusterer)
I just started using Leaflet and Marker Clusterer to organize the markers.
Problem #1: When an unclustered marker is clicked, no popup appears.
Problem #2: When a cluster is clicked several times, ...
1
vote
0answers
127 views
How to access arcgis cache directly using leaflet like openlayers?
I want to access arcgis server cache dircetly by only using leaflet,I wrote some code,but it work badly,could you anyone give me any hints?
my code:
getTileUrl: function (tilePoint) {
var zoom = ...
-1
votes
1answer
212 views
Is it possible to show markers from MySQL database with Javascript?
I'm interested if it's possible to show markers (latit, longit) from MySQL database with Javascript libraries like Leaflet?
1
vote
1answer
833 views
How to change icons for Leaflet markers when using cluster plugin?
I'm using Leaflet MarkerCluster. I created a MarkerClusterGroup as markers1 as you can see. There's about a hundred points I have written like var addressPoints in this format:
var addressPoints = ...
2
votes
1answer
335 views
LEAFLET - store and retrieve user markers & diagrams from database
I am intending to use leaflet in order to build a "microscope laboratory" for my institute's medical school.
I am quite new to javascript, ajax and json technologies so I would like to have some ...
1
vote
1answer
2k views
How to draw a polyline in Leaflet?
This is my coding I used in Leaflet:
var pointA = new L.LatLng(28.635308, 77.22496);
var pointB = new L.LatLng(28.984461, 77.70641);
var pointList = [pointA, pointB];
var ...
1
vote
1answer
617 views
How to plot multiple markers on a leaflet map?
If I have a object containing lats and longs how can i plot them in leaflet using the marker constructor I tried looping through them
for(key in obj){
var val = obj[key];
...
3
votes
1answer
566 views
What is the difference between Leaflet and Mapbox?
What is the difference between Leaflet and Mapbox, and how are they used together?
Like the API and what exactly are they and is Mapbox using Leaflet?
