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

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3
votes
1answer
154 views

Leaflet add and remove legends with layer selection

I'm new to Leaflet/Javascript and have been struggling to get legends a map to show only when a specific layer is selected from the layer control. I have three layers, one of which I would like to ...
3
votes
1answer
563 views

Change default leaflet marker color

I'm using esri-leaflet, and leaflet inherently to add a point feature class (geojson) to a map. What is the best way to add and style the layer? I've see pointToLayer on the leafletjs.com, but don't ...
3
votes
1answer
169 views

leaflet choropleth map using dynamic value

I am doing a choropleth map using leaflet and JSON data. I got a clean tutorial in leaflet site. In that tutorial the used us-states.js JSON file where the choropleth was based on the ...
3
votes
2answers
792 views

Leaflet offline tiles problem

I hate to ask this kind of questions, but i ve been stuck for 2 days now: I rendered some tiles with mapnik which i want to serve in my offline application which will run from a portable disk, but ...
3
votes
1answer
642 views

reusing cached tiles with leaflet, mbtiles and mbtiles-php

I am using Leaflet and infostream's fork of mbtiles-php to serve MBTiles stored on my server. I'm using a Leaflet layer group (and a layer control) to serve two MBTiles files. When I toggle between ...
3
votes
1answer
2k 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, ...
3
votes
2answers
109 views

Leaflet geoJson in front of markers in a FeatureGroup

I am loading some markers and json data to a leaflet map. I need to get my json in front of the markers. I have tried placing the markers and json in seperate FeatureGroups and then tried ...
3
votes
0answers
35 views

How to update location via a data streame in openlayers or Leafletjs

I'm developing a application where I need to real-time update a Location of a Map using a data stream, I'm planing to use web-sockets, Are there any guides I can follow? Or can you guys direct me in ...
3
votes
0answers
363 views

Using Custom Map Projection On Leaflet

I have an application displaying a EPSG:3414 map running on Openlayers - jsfiddle working sample that works. I am trying to implement the same on Leaflet - jsfiddle non-working, it is not working as ...
3
votes
3answers
643 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 ...
3
votes
0answers
198 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
693 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 ...
3
votes
0answers
728 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 ...
3
votes
0answers
313 views

How do I pass a LatLng Bounds from Leaflet to Mapfish Print?

I successfully fired up a MapFish print server on Elastic Beanstalk, and it prints out the sample spec files fine, but I'm trying to pass bounds from my Leaflet frontend now, and encountering a lot of ...
2
votes
2answers
477 views

Do the recent developments in the Google Maps API replace necessity of OpenLayers?

I think the main drawback of the Google Maps API is that we can't add our own vector data or raster imagery as one of the layers in the map. Is this correct? Or is there any alternative in the Google ...
2
votes
3answers
2k views

get latitude & longitude as per address given for leaflet

In my project I am using leaflet to display points. I am getting address from my database & want to show point for that particular address. I dident found anything which will give me latitude ...
2
votes
2answers
64 views

zoom over vector in leaflet

I have created a map from geojson file of administrative boundaries (polygons layer). Similar to this example. When the mouse is over the polygon feature, the cursor changes from hand to finger. In ...
2
votes
3answers
2k 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 ...
2
votes
1answer
791 views

How to insert new line text in popup

I'm using Leaflet Marker Cluster and I need to show five different lines in a popup. But when I write this, they are all in the same line. Can someone help me to be one under another? var a = ...
2
votes
3answers
270 views

geoserver heatmap tiles doesn't display well (with leaflet)

I am trying to display a heatmap generated with geoserver on my map using the L.tileLayer.WMS class from Leaflet, but the tiles do not fit well together. Do you have any idea how to fix it?
2
votes
2answers
831 views

gdal2tiles.py generates wrong tiles / MapTiler the right ones

I'm trying to generate tiles with gdal2tiles.py and the resulting tiles are stored as 18/132639/164219. If I do the same thing with MapTiler (the GUI variant of gdal2tiles) the tile result is ...
2
votes
2answers
4k 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
1answer
2k views

Disable leaflet interaction temporary

How can I temporary disable zoming/draging the Mapview in Leaflet.js Tried so many ways but without any luck. It's important to make it temporary and I also need the option to enable again.
2
votes
1answer
1k views

Leaflet, wrong API key when using CloudMade tiles!

I've registered on CloudMade and got some API keys but non of them work with Leaflet API. When I checked for image URLs and opened each directly using my browser it prints out the message "Wrong ...
2
votes
1answer
2k 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
2answers
341 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
2
votes
2answers
76 views

Flannery compensation in Leaflet JS

I'm creating a bubble map using Leaflet JS. Everything is working smoothly (LeafletJS is awesome!) but now I'd like to try flannery compensation on the bubbles. I can't find the math anywhere though. ...
2
votes
3answers
212 views

Leaflet and ArcGIS Geoprocessing Service

Does anyone know of an example of a leaflet map with a geoprocessing service? Is it possible? What would the code look like? I know ESRI Leaflet allows feature layers and map layers but I can't find ...
2
votes
2answers
75 views

Mixing coodinate systems

I'm planning to create an online map with openlayers (2 or 3) or leaflet. I have to show some points/markers (~30.000), polygons (~500) and lines in an area of ~10x10 kilometers in several layers. ...
2
votes
1answer
2k views

Combine Leaflet with Geoserver WMS map

I'm not very skilled within the GIS world, however, I would like to know if it's possible to use this map: ...
2
votes
1answer
158 views

How to efficiently render and enable user interaction on thousands of points with Leaflet?

I've got a large dataset comprised of about 10k points representing gas stations. Some of these gas stations sell diesel fuel, others do not. In my web map, I want to let the user switch between ...
2
votes
1answer
699 views

GeoServer Callback Function Undefinded

Any idea why the function loadThis() comes back as undefined? I've tried adding jsonp: false which doesn't help either. The json object is returned properly, I can view it in FireBug, but I can't get ...
2
votes
2answers
1k views

leaflet and geojson tiles

New to mapping. Trying to create a heat map with data that updates every hour for US Counties with leaflet.js similar to http://leaflet.cloudmade.com/examples/choropleth-example.html. But, adding ...
2
votes
3answers
7k 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 ...
2
votes
1answer
33 views

When I publish a layer(shapefile or postgis) with TileMill, 200 meters moves

I hope someone can help me. Not if you know the TileMill application I'm working with her to publish layers look more beautiful. Well, first I have posted directly loading the shp file., But when ...
2
votes
2answers
86 views

Sending map extent in (geo)JSON

I have a leaflet map that I need to fitBound on a given rectangle. The coordinate for the fit bound will be transfered in JSON via a REST call on a server. We are using GEOJson to encode our geometry ...
2
votes
1answer
139 views

Display a control (zoom bar) outside map container in Leaflet?

I need to extend a zoom control so that it is functional outside of the leaflet map container. Can this be done? Essentially,the same idea as what is accomplished with this item here but under the ...
2
votes
1answer
529 views

Leaftlet and ArcGIS Server REST

I am fairly new to all of this and am looking for some guidance. Any information is appreciated! I am trying to use leaftlet to display shapefiles from an ArcGIS Server using the REST URL. I have ...
2
votes
2answers
2k 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 ...
2
votes
1answer
921 views

leaflet show miles/kilometers

Googlemaps shows you how large an area is on a map by showing a small bar with the number of miles/kilometers at the bottem left. Does leaflet also support this somehow? I do not see it listed in ...
2
votes
2answers
2k 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 ...
2
votes
1answer
847 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 ...
2
votes
1answer
163 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
2answers
1k views

Animated lines and line styles in Javascript

I'm using Leaflet library and Mapbox. I need to create animated line from one city to another, slow motion "travelling" from one point to another point. Is that possible in javascript and how? I can ...
2
votes
1answer
72 views

Leaflet snap circle draw to marker

I am looking for ideas/libraries that enable snapping when I create a circle with leaflet draw. There is the libaray Leaflet snap, that enables snapping of draggable markers to polylines and other ...
2
votes
1answer
113 views

Cache geodjango query with bounding box filter

Im using geodjango (postgis) to retrieve points contained inside a bounding box (made by leafletjs), it works so nice, but now I want to cache this query. A tipical query is one like this: ...
2
votes
2answers
145 views

where to host private cartodb/leaflet web app

I am looking for opinions on where to host my cartodb/leaflet map site. It needs to be private with authorized users and have a document management system. So, I was thinking sharepoint online 2013 so ...
2
votes
1answer
219 views

Options for getting data from SQL Server into Leaflet app?

I have polygon data in SQL Server 2012 that I need to get onto a Leaflet application - we're not talking thousands of polygons, but simplified U.S. counties where only one state will be displayed at a ...
2
votes
1answer
320 views

Programmatic conversion between GML and GeoJSON

I am modifying a .Net (C#, MSSQL) system to add some geography that I'd like to display on a leaflet map. I had originally expected to save GeoJSON directly into text strings in the DB, but after ...
2
votes
2answers
263 views

Can Geoserver return the raster value of a lat/lon point

I have a GeoTIFF published by Geoserver 2.2 and being used by Leaflet via WMS. How can I get Geoserver to return the raster value at a lat/long point? I'm guessing it has to do with using WCS, but ...