An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps

learn more… | top users | synonyms

0
votes
1answer
2k views

How can I change the style of marker in leaflet (from GeoJSON)?

I'm serving GeoJSON to leaflet and by default it get a blue icon marker. I'm trying to change the style so I'll be able to use the feature properties as part of the style , but no matter what I do , ...
1
vote
1answer
300 views

GeoJSON is valid according to JSONLint but jquery gives error

I have the following GeoJSON (from webservice) { "Features": [ { "Id": "1", "Geometry": { "Coordinates": [ { "Latitude": 31.2812, ...
2
votes
0answers
137 views

Show geoJSON properties in jQuery Mobile Panel

First off I'm a novice at JS so please bear with me if this is a simple task to complete. I'm currently using the stock LeafletJS popup bubble to display the properties from my geoJSON. However, I ...
3
votes
1answer
284 views

What is the best practice to show GPS movements on map (Openlayers or Leaflet) using DB and Geoserver?

I have GPS unit which update the DB with Points every 10 seconds. I want to show the position in real time (as much as I can) on map using OL or Leaflet. What I did is serving the Point as Layer in ...
0
votes
1answer
558 views

How to add Mapserver layer to Leaflet?

I have a layer in PostGIS in epsg:4326. Put in in MapServer: MAP IMAGETYPE PNG EXTENT 60.0 56.0 61.2 57.4701 SIZE 800 600 OUTPUTFORMAT NAME "png" DRIVER GD/PNG IMAGEMODE PC256 ...
1
vote
0answers
16 views

Alrign Track from GPX file with roads [duplicate]

I'm looking into possibilities to align track data from a GPX file with known roads, perhaps coming from OSM. So far I'm able to show the tack as such on a map powered by leaflet. Since the app ...
0
votes
0answers
61 views

Is there a way to redraw WMS layer in leaflet without flickering?

I have a project in leaflet and I need to refresh a layer every 5 seconds. When I redraw the layer , the screen flickers (in openlayers with same WMS layer it doesn't). Is there a way to redraw a ...
1
vote
1answer
549 views

GeoJSON in Leaflet

I'm just starting to work with leaflet and have a basic question about showing a geoJSON file. First, I found this excellent article with example code: http://bl.ocks.org/lxbarth/4019660 However I ...
0
votes
1answer
181 views

How to render only those Leaflet layers which are in current map view?

Is it possible to render Leaflet layers which are in current map view so that other layers which are not in that map view doesn't render? I have many polgons (buildings) and it is really slow ...
1
vote
1answer
76 views

Removing Places from OSM

Doe is exists a way to remove all the places from the OSM map? Also like shops, bars, restorations, hotels etc. I wish to use a maps with a less info. Is it possible to do this from the original OSM ...
0
votes
0answers
59 views

i need to create a simple gps, which api is the fastest and easiest?

I need to create something v.simple the map should get the location of the user, and i would send it a 2nd requested locations lat-lng from my db I need the map to give the directions which the ...
1
vote
0answers
309 views

Leaflet's worldCopyJump breaks map, zooming fixes it up (updated)

I had my map working with worldCopyJump set to true, but then it stopped working. I'm not sure exactly what broke it (the original form of this question said there was a connection to a plugin, but ...
3
votes
2answers
187 views

Is it possible to check incoming GeoJSON to see if any of the features are identical to existing ones before adding to map?

I am working on a Rails/PostGIS app and doing a typical ajax call to retrieve GeoJSON within the map viewport bounds. Whenever the map is shifted or zoomed all of the markers are removed and then ...
1
vote
1answer
218 views

Get latest tiles from TileMill's tile server in Leaflet

My leaflet app gets the tiles from TileMill's tile server in the standard way: L.tileLayer('http://<myip>/tile/SteveCountryVic/{z}/{x}/{y}.png', { ... }); These tiles are often old, not ...
0
votes
2answers
378 views

How to create multiple polylines using an external geoJSON file using Leaflet?

I'm starting with Leaflet and I'm using some georeferenced information collected from twitter. I already manage to load an external geoJSON with some points. But now I wan't to draw some connections ...
0
votes
0answers
46 views

Replacing missing data when using Bing REST Tiles

I'm displaying Bing imagery on a Leaflet map using the Bing REST service and have noticed that at certain zoom levels, imagery is simply not available. That's perfectly fine, but I'd rather not view ...
2
votes
2answers
404 views

How to determine intersection between geojson feature and given coordinates?

I'm overlaying a leaflet map with features of geojson, fetched with d3 and added as SVG elements to the DOM. My geojson contains too many features to render at once, so my goal is to add to the map ...
0
votes
1answer
193 views

CartoDB Convert from the_geom to google's lat long

I have a CartoDB table that when I query it via the rest api I get something like this: { "name": "sas", "street": "la plata 2390", "cartodb_id": 1, "created_at": "2013-06-26T00:46:21.412Z", ...
2
votes
2answers
1k views

Getting WFS data from Geoserver into leaflet

I'm trying to use a ajax call to load WFS data from geoserver into a GeoJson layer in leaflet. When I do the following message in the console: XMLHttpRequest cannot load ...
1
vote
1answer
129 views

How can I make a leaflet control open by default?

I'm using leaflet to display a map. I have a control section that I'd like to be open by default, but I can't find a way to do it through the API. Is there a way to do this?
0
votes
0answers
68 views

How to load GeoJSON like map tiles in OpenLayers

As I have noticed that Leaflet has GeoJSON layer which calculates uri by tile and then request layer vectors. How can we manage this functionality in OpenLayers ?
0
votes
0answers
112 views

How to select GeoJSON vector feature in Leaflet?

I've been using OpenLayers for years,instead of comparing OL & Leaflet libraries,I decided to use Leaflet for the job for now. I have a GeoJSON data layer where I show point objects only.Just as ...
1
vote
2answers
130 views

Where to store geodata to be layered over an OSM tile map?

I'm working on a project for which most data can come straight from OSM. But some data is not relevant to OSM and will need to be stored separately then layered over the top. Probably the tiles will ...
0
votes
1answer
1k views

leaflet fitBounds with multiple marker

I have created two checkboxes. If I check one it will zoom to a point with marker. If I uncheck the checkbox the marker removed. Similarly second one is working. But I want to do if the two checkboxes ...
0
votes
0answers
210 views

How to put markers from geoJson to MarkerClusterGroup?

How to put markers from layer WTGS (which reads geojson from php file returned from postgis database) to L.MarkerClusterGroup? WTGS = new L.geoJson(null, { pointToLayer: function ...
3
votes
2answers
381 views

Display GeoJSON layer on top a SVG image instead of a map.

I'm very new to GIS, so hope this is the correct place to ask. Not sure if this will even be possible. This is what I want to achieve: In short, I want to display a set of polygons, lines etc. in a ...
0
votes
0answers
516 views

Unable to dynamically locate map boundary coordinates in OSM/Leaflet

I have been trying for the past hour to take the coordinates of the map edge in a OSM/leaflet application I am making. While I can get the coordinates of the center, and I can get the coordinates of ...
1
vote
1answer
166 views

How to prevent data scraping in a web map?

I would like to use Leaflet or a Leaflet-like mobile-friendly library to produce a web map of points of interest, but I am concerned with how easy it is to just scrape the data from the javascript. Is ...
1
vote
1answer
350 views

Leaflet Marker Cluster: Popups won't open after first

I built a map using Leaflet and markercluster.js, and I'm having a strange issue where after I click on the first popup, I'm unable to open any other popup. This happens whether you close the first ...
0
votes
2answers
332 views

Leaflet WMS layer not working until zoomed

I created a toggle button to add and remove wms layer from the map. In the default zoom level, it is working fine. But when I remove layer and zoom in or out, then do "Add Layer", the layer does not ...
2
votes
3answers
1k views

Sizing Leaflet Map inside bootstrap

I have been trying to change the height of my leaflet map to a percentage inside of bootstrap but everytime I do the map will not draw. Thus, I always have to revert to px value. I'm pretty sure its a ...
4
votes
2answers
1k views

Offline SLIPPY Map (Tiles) Database for Leaflet

How can create an offline cache of a large number of SLIPPY tile (PNG, 256x256) inside a web browser and then display them from that offline cache. For example, can one use HTML5 IndexedDB as an ...
0
votes
1answer
142 views

How to apply bounding box filter in leaflet WMS?

There is a working example in leaflet site for adding WMS Layer in leaflet map at : http://leafletjs.com/reference.html#tilelayer-wms. But I don't see methods to provide the filter for bounding box. ...
0
votes
1answer
456 views

Loop over features of a GeoJSON object from CartoDB

I have just little knowledge about HTML and JavaScript. Nevertheless I was playing, copying and pasting around with Leaflet and CartoDB. I want to display the features GeoJson in a table. This is ...
1
vote
1answer
230 views

Looking for a GeoJSON describing the french departments

Is there any place where I could find a GeoJson describing the borders of the french departments, or do I have to convert a .shp file?
3
votes
1answer
291 views

Does leaflet support KML Ground Overlays?

I found an example showing KML overlays at http://harrywood.co.uk/maps/examples/leaflet/kml.html but it only plots vector layer using polygons. Is there any way to plot Ground overlays of KML (like ...
0
votes
0answers
36 views

Finding Leaflet Map Tiles for Rivers

I'm building a map-based web app with Leaflet that focuses on the Danube river. I'm trying to find map tiles for the river to use as an overlay in my application, but I can't seem to find any services ...
1
vote
1answer
585 views

How to get correct format of coordinates for export to geojson from QGIS?

I've created a custom map in QGIS with a few shapefiles. I'm using leaflet.js to render the map and the shapefile points and everything lines up correctly. The CRS is set to 4326. When I export the ...
0
votes
0answers
363 views

How do I add elevation data to a GeoJSON line from a GPX file?

I understand that elevation can be added as an optional third value in Coordinates (lat, long, elev) in a geojson file, but I can't find a way to actually do that from a gpx file. I've used ogr2ogr to ...
3
votes
2answers
1k views

OpenLayers vs Leaflet for specific app

Could anybody give me some advice on which one should I use? OpenLayers or Leaflet I will implement OSM on a web-app for taxi management. The requirements for the map part are: Tracking of the ...
1
vote
0answers
145 views

Point Within, Query in a buffer polygon in WMS like in ArcGIS ESRI

I need to do a query to filter the result inside a polygon or geometry, like this: http://help.arcgis.com/en/webapi/javascript/arcgis/jssamples/query_buffer.html But, i need to do this in a opengeo ...
3
votes
2answers
788 views

Leaflet proj4leaflet with multiple projections

I am looking at having both EPSG4326 tiles and EPSG3857(cloudmade) tiles on a single map (but separate layers). I have been looking at the proj4leaflet plugin, and it "appears" to me that this might ...
1
vote
1answer
3k views

Custom Leaflet Controls

I have gotton some help in creating a custom control for leaflet, but I am still having trouble upgrading to the CSS styles used by the latest versions of Leaflet. Basically, all I need is a icon in ...
2
votes
3answers
706 views

How to add a polygon from PostGIS ST_AsGeoJSON into Leaflet?

I try to use the following function to add polygons to my Leaflet map. function polygon(geojson) { alert(geojson); // alert for testing layer = L.geoJson(geojson); layer.addTo(map); } ...
0
votes
0answers
265 views

Show UTFGrid from a local map in MBtiles

Good afternoon: I have created a map using TileMill, exported it to MBTiles and uploated it to MapBox. I want to show the map and its UTFGrid using Leaflet and Openlayers. With this code, I can do ...
1
vote
0answers
145 views

Updating leaflet variable using dajax?

Really, I think this a somewhat easy question for someone with some more experience in javascript programming. I have a Django app to map some locations using leaflet. I'm using dajax for some on ...
0
votes
0answers
28 views

repost: how to show context menu in Leaflet [duplicate]

I asked similar question earlier but didn't get suitable answer. I am now asking again with more clarification. Please see the following google right click menu. I want to create something like this ...
1
vote
2answers
2k views

How to add text-only labels on Leaflet map with no icon

I'm looking for a way to show text on Leaflet map using markers or anything else without showing any icon. I want to show text only and be able to style and rotate it... Any suggestion? Thanks a lot ...
0
votes
0answers
15 views

GeoServer/Leaflet - Context menu to change raster [duplicate]

It's my first GIS project and after days of reading, it is still not clear how I should start. I'm using GeoServer to serve GeoTiff images in WMS to a leaflet application. It works great. Those ...
0
votes
1answer
182 views

QuantumGIS EPSG:3857 doesn't match with leaflet

Leaflet documentation said that they has EPSG:3857 as default projection. Using QGIS with open layer plugin, I point to a location to find it's coordinate. I used EPSG:3857 in QGIS as well. The ...