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

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2
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2answers
118 views

IE8 issue with Leaflet and CartoDB

Hi all having some trouble getting this map to work in IE8. Currently tried using some of the old IE8 CSS for both but that didn't seem to work. Any ideas for this? Here is the code for the main map: ...
1
vote
2answers
179 views

CartoDB Runtime Layers with Angular

Has anyone ever tried adding a CartoDB runtime layer to a leaflet using an Angular Directive or angular-leaflet-directive (Leaflet Javascript Library)? I tried this, which does not throw errors but ...
2
votes
1answer
103 views

L.esri.featureLayer shows up and sometimes not

I'm new to the leaflet/esri subject so please forgive me if it's just a simple question. I wrote my first webmap-app. It uses different sources. The main aim is to show two basemaps hosted by MapBox ...
2
votes
0answers
32 views

Is it possible to hatch format railroads in leaflet?

Within mapbox tilemill it is possible to make make rail-roads like this: To achieve this you need to write the following code: Source #railroads { ::line, ::hatch { line-color: #777; } ::line { ...
0
votes
1answer
288 views

Transfer Data from Database to Leaflet POP UP

Good Day too all! I just wanna ask a little question. Ahmm how do you show data from database to leaflet pop up? Here is my code in php select command <?php $db = new ...
0
votes
1answer
134 views

Overlay single, non georeferenced image in Leaflet?

I'm wondering whether it would be possible to somehow overlay a 3rd party, changing non-georeferenced image such as: If the image was static, I'd use mapwarper.net. But it's not. So is there a way ...
1
vote
2answers
144 views

Highlighting features in qgis2leaf export

I have exported a QGIS map to Leaflet using the qgis2leaf plugin. I am looking for some assistance as to how to highlight features (polylines) when the mouse hovers over it. I just want the polyline ...
1
vote
1answer
56 views

Possible to show aggregate votes in a tooltip on a markercluster?

I'm building an interface that would take poll data in and show some results over a marker cluster using Mapbox but I don't have any experience with it. The interface would look much like ...
0
votes
1answer
117 views

Leaflet Layer Controler

I've got a strange behavior with my map. I wanted to have to basemaps and one overlay. I've defined classes but when I try to change them via LayerControl I only get one same map. Could you please ...
0
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0answers
37 views

Problem with Leaflet Boundary Canvas plugin

I'm trying to identify the source of a problem that I'm having, I cannot show a tile layer(created with gdal2tiles) inside a polygon generated in Leaflet, using the plug-in ...
1
vote
1answer
121 views

Change point symbol in mapbox.js/leaflet/esri-leaflet.js

I am a complete nooby to the above libraries. Till now, everything shows up very fine. I got my mapbox as a basemap and added some point data provided by an ArcGIS Server. To get the AGS data onto ...
2
votes
1answer
234 views

Leafletjs get latlng center position of polyline

After drawing a polyline, I would like to draw a circle from the center of this line whose radius encompasses the entire line. For polyline's that have more than 2 points I can crudely get the center ...
1
vote
1answer
177 views

How to re-implement a Dojo application using Leaflet?

I apologize in advance if this is not the correct forum to ask my question. I have an web map application developed using the Dojo framework. However I would like to create the same web map ...
2
votes
2answers
190 views

Add custom variables to leaflet polyline

I'm drawing a route on a map with leaflet. I'd like to click on any point in the line and display the speed and time at that point in a popup ($speed[$i]). latlngs = [<?php for ...
1
vote
1answer
165 views

Changing size of cluster based on number of markers in Leaflet clustermarker

I'm currently using Leaflet's markercluster add-on, which is working really nicely for some of my initial maps. However, I'm wondering if there is a way to modify the clusters so that the size of the ...
1
vote
1answer
138 views

Leaflet - GPX - Clustering

I'm using Leaflet maps together with "Plugins by Pavel Shramov", which allows google usage and GPX file use. This bit was easy enough, but trying now to use markerClusterer. I've spent a few hours ...
0
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0answers
165 views

How to toggle legends with layers in Mapbox.js?

Map is currently toggling 23 layers using var = overlays. I want the respective layer legends to appear when layer is toggled on, and show legends of all ON layers. var map = L.map('map',{center: ...
1
vote
1answer
78 views

Get all tileLayers from L.map object in Leaflet

What is the best way to access all displayed tileLayers from a L.map object? Traditionally, I have stashed tileLayers in an object that I can access later, like so: var mapLayers = {} if (! ...
0
votes
2answers
119 views

Leafletjs detect click/touch on layer

How do I detect a click on a layer and find out information about the layer that was clicked? Currently I can do the usual binding a popup and adding a click handler on the layer: ...
1
vote
1answer
128 views

Generate territory polygon from sets of points

I'm looking for a simple way to generate contiguous "territories" from sets of points. Say, points A, B and C are in territory 1, and D, E and F are in territory 2, then generate polygons that lie ...
1
vote
0answers
57 views

Legend not removed when layer changed

I made this webpage with JavaScript and CartoDB. The layer selector works like I expected it to but I noticed that the legend are stacking on top of each other and not being removed when the layer is ...
2
votes
2answers
190 views

Click Events with Leaflet and geoJSON

How do I attach a click event to a geoJSON that then executes an Ajax function when clicked. I looked into onEachFeature but that executes when the geoJSON is loaded, not when clicked, thus executing ...
3
votes
1answer
133 views

How to display UtfGrid info

first off sorry if this question have been asked, I have been looking for an answer for some time now but cant find any solution. I have created a .mbtiles file with Tilemill, extracted the .png and ...
1
vote
1answer
158 views

Leaflet: how to use a custom marker on a geojson layer?

I'm trying to put on a Leaflet map a geojson and all works fine until I use the default blu marker. Now I'd like to use a custom marker (a little .png icon) and I've changed my code in the follow ...
0
votes
1answer
332 views

Leaflet 1.0 release

I was listening Future of Leaflet talk: http://www.confreaks.com/videos/4665-jsgeo2014-future-of-leaflet and I'm really looking forward for 1.0 release. Are there any news on estimated release date?
0
votes
1answer
151 views

How to make polygons clickable in Leaflet.js / folium

I'm trying to create a clickable leaflet.js map using folium and Python. After a previous query - answered here Geopandas/folium map not displaying - I've added the polygons. But I'm getting a ...
1
vote
2answers
584 views

Change marker color based on GeoJSON filter in Leaftlet

This is what I would like to do: Display all features of a GeoJSON file using Leaflet. Provide a text box where a property can be entered, if any of the GeoJSON properties match with what is entered ...
2
votes
0answers
178 views

Loop through a marker cluster using Leafletjs

I have a variable like this var cubbon = new L.MarkerClusterGroup() then i added many markers to this variable. now i like to create a function() and loop through the variable and find out a marker ...
2
votes
1answer
267 views

JSONP working with Leaflet time slider

I would like to integrate the time slider into a JSONP geoserver. Here is the current code I have http://jsfiddle.net/qcwcrwge/26/ and I would like to use the time slider with a layer called ...
1
vote
2answers
90 views

IE8 problem with proj4.js

This problem is in IE8 and not in Firefox. My first problem was that IE8 don't support JSON natively and I get the "JSON is undefined". I solved this by including json2 or json3. Now JSON.parse ...
1
vote
1answer
237 views

leaflet-omnivore style function

Please pardon my ignorance in advance, but is it possible to style a layer(polygon) using the plugin leaflet-omnivore? All of the examples I've encountered are using the MapBox API I have the layer ...
3
votes
1answer
230 views

How to make transparent the background of a WMS layer in Leaflet

I have inserted the following layer from a geoserver in the following Leaflet map : var nexrad = new L.TileLayer.WMS("URL", { layers: 'Wrecks:WrecksGreaterNorthSea', format: 'image/png', ...
2
votes
1answer
201 views

How do you get the nodes of an area in Overpass API in the “right” order?

I use the Overpass API to get the boundary of an OSM relation. I then use the result to display the boundary on a leaflet map. My problem is however, that the nodes are not in the "right order". ...
3
votes
2answers
264 views

Search and zoom json features in Leaflet

How can I add search box to map that allows user to search>zoom to polygon name. If there are 100 polygons, user can type name of polygon (i.e., Symantec) then map zooms to matching county?
1
vote
1answer
168 views

Leaflet/MarkerCluster plugin - how do update the HTML content of a DivIcon?

In Leaflet, I am using the markercluster plugin, in which you can use the DivIcon class to display custom icons for the clusters. You can set your own HTML for these clusters. However, I can't find ...
0
votes
1answer
199 views

Leafletjs Invalid GeoJSON object

I am using the following coming back from a socketio connection: L.geoJson(data.streets, { onEachFeature: map.onEachFeature }); It's throwing the following error: Invalid GeoJSON object. My ...
2
votes
1answer
140 views

find inner bounds of a polygon in leaflet

How can I find the inner bounds of a polygon in leaflet? I a want to plot points randomly in polygoon but when I say Layer.getBounds() I get the bounds and I can still plot the markers ...
2
votes
1answer
138 views

How to get a table from a leaflet map?

I have a map Here based on leaflet JS and the layers are geojson. I would like to get a table at on another div when I click on each layers. How would I be able to do that? Thanks
2
votes
1answer
215 views

Saving Leaflet Maps in Database

I have a webpage with a Leaflet Map, I can add markers,filter markers and so on. My question is that how can I save it? Load the Map Add some Markers on the Map (Optional) Filter the Markers on ...
1
vote
1answer
89 views

Problem with Leafletjs and GeoJSON

I am new to Leafletjs and I am trying to figure out how to plot a polyline on a map using a geoJson object. I've gotten as far as getting a map, making it centered on a given lat/long and setting the ...
0
votes
0answers
36 views

Integrate leaflet module in a google maps application

Is it possible to use a leaflet application over a google maps application? What I want is to integrate a leaflet module / application over a google maps application just by passing the google maps ...
1
vote
1answer
346 views

How can I convert GeoJSON with multiple Polygons and MultiPolygons into single MultiPolygon?

Is this even possible? I have a GeoJSON file with multiple polygons and multipolygons, and I need to set styling on them (in Leaflet.js). I'd like to create a single, large MultiPolygon from the ...
1
vote
2answers
153 views

Load or display differents geojson data on zoom level for leaflet maps

I have a map with 3 levels of information. The first is the country, the second the state and the last one the cities. I wonder know if it's possible to use the zoom value in order to display the ...
4
votes
2answers
130 views

Visualization of a field in Leaflet

In a Leaflet app I want to overlay raster data (technically speaking, a field) on a web map. The data consists of triples < lat,lon,value >, where value is in range [0,1], for example: ...
2
votes
0answers
87 views

Check/uncheck overlays in groupedlayercontrol.js

In a Leaflet-based app I have create several overlays, grouped with leaflet.groupedlayercontrol.js, as shown in this image: Everything works well, but I need to uncheck certain layers, allowing the ...
1
vote
1answer
813 views

How to open overlay content from leaflet popup

Hi! I am currently working on an interactive leaflet map. I managed to display markers from a database via php (create an array). Now I want users to create markers with a click on the map. To add a ...
1
vote
1answer
108 views

Update mouseover information with baselayerchange on leaflet map

On leaflet map I use baselayerchange in order to change the legend box and the info popup on rollover. The legend change works perfectly but I have a problem with the infobox (name info0/info1...), I ...
3
votes
2answers
569 views

Merge geojson polygons with WGS84 coordinate

I have a Geojson file with some adjacent polygons and I want to merge them into one. I know it's a recurrent question but I can't find information for polygons with latitude and longitude coordinates ...
1
vote
1answer
52 views

2 Legends in Leaflet

In Leaflet I want to add a legend when I turn on an overlay, then when I turn off that overlay I want the legend to disappear and when I turn on a second overlay I want a second legend to appear. I ...
0
votes
1answer
79 views

Leaflet & Esri-Leaflet: JSON objects not drawing correctly when using 'fields' filter

I am working with Leaflet 0.7.3 and esri-leaflet beta.6. Using L.esri.Layers.FeatureLayer works fine until I add the fields filter. At that point, the geojson objects draw sporadically (mostly not at ...