Tagged Questions

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

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4
votes
2answers
110 views

Plot a Raster of Weather data in Leaflet JavaScript Map without generating server-side tiles?

I want to show different weather data I have as binary arrays on a server using leaflet. But I do not want to generate tiles on the server. For each point in an a array I have the coordinates in ...
1
vote
0answers
129 views

Passing ng-directive to Leaflet L.popup().setContent() [closed]

Goal: Pass an Angular directive to the .setContent() method of L.popup() The Problem: I need to run $compile on the directive in order for it to enter ng. But something like: ...
1
vote
0answers
58 views

Multiple Leaflet maps on website in different divs

I'm pretty new to leaflet.js and I'm trying to figure out how to assign the same map with the same set of options and layers to a different HTML container instead of having to remove and add a new one ...
2
votes
0answers
41 views

Stray horizontal lines after converting from GeoJSON to topojson

After converting a GeoJSON file to topojson, and loading the topojson into Leaflet, stray lines appear in the resulting map. Like this: What is causing this? If I view the GeoJSON, these stray ...
1
vote
1answer
57 views

Geocode free APi for internal application

I need opinions / experienced use on this issue: Which API can be used to geocode an internal application of a company that meets these requirements: Can be used for company internal application ...
4
votes
1answer
82 views

Leaflet: how to change default style on a point GeoJSON Layer?

I need to change style on a point GeoJSON layer in a Leaflet map. I'm using the following code: function onEachFeature(feature, layer) { if (feature.properties && ...
0
votes
0answers
20 views

Leaflet: verify when a layer is checked in control layers

I'm a newbie in Leaflet, so sorry for the entry level question .... Is there any way to test if a layer in Control Layers is checked or not? I don't find any in API documentation.
1
vote
0answers
92 views

How to get the total route km route using machine leaflet

I'm using machine leaflet route to draw routes I can get the total route miles ?? How can I do this? I know the class IRouteSummary http://www.liedman.net/leaflet-routing-machine/api/#iroutesummary ...
1
vote
0answers
34 views

Geocoder leaflet for internal use in the company, which take addresses from any part of the street

I am making a personal application routing to be used internally in the company using machine leaflet route. The plugin uses nominatim geocoder, but he geocodificia according to the links of the OSM. ...
0
votes
1answer
165 views

Error with Leaflet Routing Machine

I downloaded the Leaflet Routing Machine from https://github.com/perliedman/leaflet-routing-machine. Unzipped and opened the index.html in my browser to see how it looks, and got an error as shown in ...
1
vote
0answers
55 views

What is wrong with my data receiving from php script for geoJSON TileLayer?

I want to get geo data as geojson for geojson tile layer requests in leaflet. I set up a geojson layer like this: https://github.com/glenrobertson/leaflet-tilelayer-geojson/ A php script answers ...
1
vote
0answers
27 views

Leaflet: Is there a way to use click event just like mouseout?

I made a map with leaflet by following the official Leaflet tutorial on interactive choropleth maps. I would like to make the map compatible with smartphones, so I added a click event, which acts ...
1
vote
1answer
106 views

Query and Visualize GeoJSON data [closed]

I am trying to visualize specific GeoJSON data. I am successfully loading the full GeoJSON file (Multipolygon) using Leaflet JS. Is there any query to find specific polygon from that GeoJSON file? ...
2
votes
1answer
119 views

Easy way to render TileMill tiles in retina mode with Leaflet?

I have a few quick little map websites that run straight off TileMill, without pre-exporting. They usually have code like this: L.tileLayer('http://example.com:20008/tile/MyMap/{z}/{x}/{y}.png', ...
1
vote
0answers
46 views

Show large information in a map (millions of points)

I have millions of points (census data) about 1.5Gb in a text file. But I only want to show an area based on this points like a heat map, so maybe I have to build polygons based on these points. What ...
1
vote
0answers
62 views

send viewparams geoserver using leaflet

I need to pass my longitudes and latitudes of origin and destination for a sql view in geoserver to get a WMS layer with the route. I've performed in qgis to view and is working perfectly. This is ...
2
votes
0answers
48 views

Popups not showing on layer/feature/marker groups

I had two problems. One was that, once I got lots of markers in one layer, and lots of polylines in another, someof my markers, starting from the north, started to vanish. I noted in the doco that ...
1
vote
1answer
328 views

How to use Leaflet Marker Cluster on markers from Leaflet-layerJSON (Overpass API)

I'm having troubles getting the Leaflet Marker Cluster working with Leaflet-layerJSON. I'm trying to make a Leaflet map with data from OpenStreetMap. The markers are showing on the map, but they are ...
2
votes
0answers
44 views

loading geojson in leaflet

I just added the geoJSON vector layer in leaflet for my hybrid mobile app using phonegap, the problem is that when I add the geoJSON file of size larger than 2mb the application crashes. What is the ...
1
vote
1answer
125 views

Leaflet WMS GetFeatureInfo gives result only on zoom level 10

I am using GetFeatureInfo with wms layer to get the data behind. The request returns data only after zoom level 10 before that it returns empty features. Does anyone having same issue? I think it ...
0
votes
0answers
101 views

Formating geojson file with leaflet ajax-plugin

First of all I apologize for my basic english. I have to say, too, that I'm really a newby in coding. I'm trying to create an interactive map using leaflet (you can see it here). I was able to show my ...
1
vote
0answers
58 views

Adding marker on a leaflet map

I'm very new to GIS and for learning I started with building a simple web app with GeoDjango. I am using dango-leaflet. Since I have a very limited knowledge I am facing many challenges. I'm trying to ...
1
vote
0answers
72 views

Callback method geocode items nominatim not work

function addr_search() { var inp = document.getElementById("addr"); $.getJSON('http://nominatim.openstreetmap.org/search?format=json&limit=5&q=' + inp.value, function(data) { ...
0
votes
1answer
73 views

Does the experimental QGIS2leaf plugin not work on mac OS?

I am trying to get the experimental QGIS2leaf (Leaflet web maps) plugin to work on my macbook air (2012, Mavericks OS), but when I open the outputted index.html file, no interactive image shows up in ...
0
votes
0answers
73 views

GeoJson layers with leaflet in IE8

I have built a website displaying a lot of line shapes, using geojson, on a leaflet map. This is working relatively well in most browsers, though speed could be improved. As usual IE8 is being the ...
0
votes
2answers
44 views

Cartogram plugin for leaflet or OSM

Does anyone know if there is a plugin to make cartograms for leaflet ? I have sets of geotagged Twitter datas and I'd like to distord the map according to the density of tweets of every area of the ...
1
vote
1answer
140 views

Changing list-item css class using ng-class when mousing over Leaflet Map Markers

I've got a doozy of an ng-class problem. So I have an app with a map/markers on the right and a list-item menu on the left with info about the markers (like Yelp or Foursquare). With some of my ...
0
votes
0answers
124 views

How to load an external WFS (GML output format) in a Leaflet map?

I need to build a Leaflet map loading data from this external WFS service http://wms.pcn.minambiente.it/ogc?map=/ms_ogc/wfs/Numeri_Civici_2012.map&service=wfs&request=getCapabilities with ...
1
vote
0answers
55 views

Leaflet + GeoServer + British National Grid

I have followed along some examples and was able to display BNG 27700 data nicely on the map, however now I want to perform getFeatureInfo function on click. Again the code I used is as below: var ...
0
votes
0answers
161 views

How to create dynamic legend for multiply layers with leaflet.js?

I want to create multiple choropleth maps which displays different statistical data with leaflet.js. So it would be nice to show different legends for each map. I create such legends for two layers ...
1
vote
0answers
30 views

Serving data based on tiles

I am new to mapping and displaying data on maps. I was trying to display markers on a map where each marker represents a point of interest on my map. Using leaflet it is quite straight forward to add ...
0
votes
1answer
50 views

Draw Complex shapes

Is it possible to draw complex shapes (polygons) like below image, combining lines and arcs. It is more like a Land Survey plan. So I have coordinates of each point and in case of arc - Radius, Chord, ...
1
vote
1answer
166 views

How to add multiple cartodb layers in viz.json to a leaflet layer control

I have create a visualisation in cartodb with 4 layers. The resulting viz.json is added to a leaflet map as follows: cartodb.createLayer(cartomap, [url], {https:true}) ...
1
vote
0answers
23 views

geoserver wrong tile generation on leaflet

I am creating world map with bathymetry using Geoserver 2.5.1 and leaflet. It works perfactly upto certain zoom level. but after that i get few tiles drawn in wrong color as shows in images. Does ...
2
votes
0answers
58 views

Displaying a box with text on a leaflet map

Is there a way to display a label or textbox on a specific geo-place on a map produced by leaflet.js.? I know about the Marker- and Polygon Method But I can't find a way to put text in the polygon. I ...
1
vote
1answer
71 views

How to add labels parallel to lines, polylines or multilines using Leaflet?

I want to add road name parellel to its line or if the line is curved, then the label should also be curved. How to add these name labels using leaflet? example image
0
votes
0answers
42 views

geojson object with different representations and label/popoup conten

I have a quite complex geojson in terms of vertexes. It holds all the information which is needed in the webmap. it serves as the input for many layers like this (example for two): var represenation1 ...
1
vote
2answers
386 views

How to change Leaflet marker color on mouseover?

I'm having a hard time figuring out why the Leaflet method setstyle will change the color of a polygon but not the color of my markers. Polygon works fine: But the markers won't change colors: ...
1
vote
0answers
42 views

How to go about creating a custom tool/adding special functionality for a web app

In my soon to be developed web app, I will have an image service and also a feature service that is essentially an index to the image service, with all kinds of attributes. I would like for the user ...
0
votes
0answers
54 views

How to hide overlays in Leaflet layerControl if geojson var not found?

i would like to perform a specific task: i have a set of geojson layers, loading features from local files. i have the layercontrol on the map showing available layers to show/hide now, regarding ...
0
votes
0answers
102 views

How to use different popup styles in the same leaflet web map for different dynamic map layers

I am very new to javascript, CSS and HTML. I have been playing around with leaflet and have been trying to figure out a way to customize popups for different features in my map. Is there a way to do ...
1
vote
0answers
99 views

How do I use Proj4Leaflet projections correctly?

I'm loading data layers from a WMS server into a Leaflet map, and I need to give the user a choice of projections. For the WMS server requests, I just need to change the CRS parameter to a different ...
3
votes
3answers
219 views

Offline Map Service with Mapnik and Leaflet

I'm relatively new to GIS, so I hope my asking doesn't appear to be ignorant in any way. I currently work on an offline map service solution for usage in areas without internet connection. For that ...
2
votes
0answers
34 views

How do I change polygon opacity using a esri WFS in leaflet?

Note...Solved and here for anyone having this problem...damn simple problem, I had not used a higher case character for fillcolor and fillopacity....they should be fillColor and fillOpacity , it ...
4
votes
1answer
61 views

Does leaflet.js offer an gutter option just like Openlayers

Currently we are switching from Openlayers to leaflet.js and there is a problem using a WMS layer with leaflet. The WMS being used is Deegree. When a layer is visualised within leaflet there are ...
6
votes
4answers
243 views

How to use Leaflet to efficiently show parts of a massive dataset?

I keep seeing non-GIS web developers running into this problem, and I'm not sure what the solution is. There is some dataset of thousands of items. We want to show a map to the user, with the ...
1
vote
1answer
47 views

How can I make Leaflet tiles appear in a page? [closed]

I am having trouble with leaflet working, but not displaying any of the background tiles in the page. This one is using the leaflet-rails gem in a Rails app. This is just in an html sample page: ...
5
votes
2answers
159 views

Leaflet: How to enable pan & zoom while GeoJSON still rendering?

I've overlaid a huge GeoJSON geometry on top of my Leaflet map, covering about 20 countries' borderlines (about 1,5 million vertices) using "L.geoJson". Each time I zoom in/out, the computer has to ...
2
votes
1answer
141 views

Make Leaflet Map Background Transparent

How can i make the background of the leaflet map transparent. I see opacity controls from the layers, but not the map background. Should the be changed just with plain CSS? Thanks
2
votes
1answer
182 views

Viewing map tiles generated from Maperitive in leaflet or openlayers

for few days i have been working on developing my own osm tile server. I tried it on linux as well as on windows, no complete success till now. I Have to make tile server on both windows and linux. ...