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

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0
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1answer
378 views

Leaflet geoserver wms doesn't show on google map base layer

I have a site running Openlayers (base layer google and overlay wms in epsg4326 from geoserver). The site works fine. I've decided to try doing the same with leaflet , and from some reason I can't ...
0
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0answers
35 views

Geoserver sometimes does not load all selected layers

I have geoserver serving two layers from postgis into a leaflet application. Leaflet is requesting GeoJSON from geoserver which are displayed one a time using Leaflet's layer control. The issue here ...
0
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0answers
18 views

Can leaflet load tile of level n-1, instead of the tile at level n if it is not found. Without a geo server?

My application loads the tiles directly from a folder located on a server . I am using leaflet to do so . The tile url pattern is as folows: http://localhost/mymap/{z}/{x}/{y}.jpg My map (google ...
0
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0answers
22 views

How do you filter mapbox layers?

I have 6 layers that contain grid, feature, and tile layers. var layers = [{ name: 'basemap', minZoom: 0, maxZoom: 19, layer: L.layerGroup([ ...
0
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1answer
34 views

Leaflet popups only displays columns where cell information NOT NULL

I've got the following map on JSFiddle. The popup information comes from an Arcgis Server with 23 columns. When you click around the markers you can see that most of the popup information are not ...
1
vote
1answer
24 views

Leaflet adding a HTML label

I would like to add a HTML label above each marker in a leaflet map. Is this possible? Example: Code for labels: HTML <table> <tr> <td class="red"></td> ...
0
votes
2answers
72 views

How do I json_encode without those quotes for the coordinates in leaflet geojson polygon?

I have a field name: 'coordinates' I have the coordinates stored in there: like this: [[ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ]] when I json_encode($geojson); I get ...
2
votes
3answers
476 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 ...
0
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1answer
31 views

Best Map API for route polygon calculations

We are building a web app. I need to obtain the area reachable from specific points by driving or by walking in order to obtain the polygon (eg., 5 minutes walking polygon from a specific point), so ...
0
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2answers
49 views

Leaflet legend. Where am i going wrong?

This is driving me nuts! I am trying to add a legend to my leaflet map and no matter what I try I cannot get it to display properly. I have imported a point level geojson into my map and I have ...
0
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1answer
27 views

Leaflet popups with source's special characters

I've got a map where I integrate spatial point data from an ArcGIS Server. Now I want a popup triggered via a click on the point. I know how everything works and the popup is displayed. But I've got ...
1
vote
2answers
356 views

Custom ordering/z-index of icons in Leaflet layer

I have a single layer (points) with a bunch of markers. Each point has an attribute that is regularly updated. I understand by Leaflet sorts the layers such that those lower in latitude are on top for ...
0
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0answers
28 views

Leaflet filtering existing featuregroup

I have a leftleat map and i would like to filter the featuregroup i am displaying. exp_colJSON = new L.geoJson(exp_col,{ onEachFeature: pop_col, pointToLayer: function (feature, latlng) { ...
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0answers
16 views

Leaflet removing labels when any popup window is shown

I am newbie to leaflet and i found the following solution to add static labels to features in my map: L.CircleMarker.include({ bindLabel: function (content, options) { if (!this._label || ...
6
votes
1answer
1k views

Generating Interactive Tiles using Nodejs, Mapnik, and PostGIS for Leaflet

I am looking to do something like this but where I have all the data on the same server. I've been following through the set of tutorials @ sparkgeo.com/labs/big/ and I'm having some difficulty. ...
2
votes
2answers
68 views

great circles in QGIS and export in 3857 webmap

My plan is to visualize great circles in a leaflet webmap. So coming from this great postgis article and R version I thought it would work like this in QGIS: create line from two points, store ...
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0answers
12 views

leaflet filelayer.js change click event

First off, I am no Javascript expert. Second, I have a feeling this is nice and simple for someone with skills. I am building a map and incorporating the leafletfilelayer plugin. The plugin works ...
0
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1answer
43 views

How to export to all points within Leaflet polygon?

I dont have any idea If it is possible to export all points within a draw polygon. (http://leaflet.github.io/Leaflet.draw/). Thanks in advance.
6
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2answers
5k views

setStyle() function for GeoJSON features - Leaflet

Ok, since I already asked a very long question about this, but since it didn't get any new replies for a while, and not to get confused in details, I will keep this one simple the best way I can. If ...
0
votes
1answer
38 views

Help binding Dynamic Map Layer popup in Esri Leaflet?

I've been experimenting with a web map using Esri Leaflet examples and I've run into a bit of a problem getting my popups to load. I'm able to successfully load the data from the REST service and it ...
0
votes
1answer
58 views

Showing only ONE layer from a group layer in Leaflet

I have the following code to solve my workflow. But it does not work properly. The problem of the map behaviour appears to be within the map.getZoom function at the end of the code. That function ...
0
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0answers
18 views

Enabling all layers by default using Leaflet?

I am using leaflet maps to compare heat layer and marker layer. I've an option to add multiple marker and heat layers dynamically. For me Heat layers are enabled by default as on when user adds new ...
0
votes
2answers
55 views

Json not loading from Geoserver into Leaflet

I'm creating an web map application using Geoserver and Leaflet. I'm trying to load a few Json feature through an WFS service.The problem is that nothing is being displayed on the final map, the ...
1
vote
1answer
222 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 ...
0
votes
1answer
118 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 ...
1
vote
1answer
202 views

passing geocode results object to another file

I'm using a geocoding plugin (Leafet.GeoSearch) on a map and I'd like the results, being the LatLng point coordinates, etc available as a parameter for GeoServer cql filtered calls. It doesn't seem ...
0
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0answers
21 views

Preventing map panning to last drawn marker using Leaflet?

I have a basic Leaflet map where I need to draw several markers and lines on. How do I prevent the map from panning to the last drawn object? I've read about setting autopan : False for popups from ...
1
vote
1answer
41 views

How do I toggle a legend of a cartodb layer in a leaflet map?

Per my previous question - here - how do I get the legend to toggle (I have it turned off now) in conjunction with toggling the cartodb layer via the leaflet layer control? Maybe adding it as a ...
0
votes
1answer
39 views

Creating Leaflet layer that can be toggled in layer control from CartoDB viz.json?

How do I create a leaflet layer that can be toggled in the layer control from a cartodb viz.json? I have read that the cartodb.createlayer does not create a leaflet layer. It seems you can add the ...
2
votes
1answer
112 views

Most efficient way to use UTM in leaflet

Our server is using UTM internally. We then send a large number of UTM Coordinates to display them in a custom made leaflet layer. First we transform (unproject) them into "normal" geographical ...
1
vote
1answer
105 views

Leaflet SVG layer is obscuring the underlying GeoJSON interactivity

I have SVG on top of GeoJSON in my map. How can a leaflet SVG overlay be placed outside of the leaflet-overlay-pane while keeping GeoJSON in-place within the leaflet-overlay-pane? (For example, how ...
1
vote
1answer
64 views

How to create and serve map tiles?

I have shapefile which is too large to be served as vector. Also, I need it only as background tile, not as layer with attributes. I thought of creating tiles in MapTiler as I already bought it. I ...
3
votes
1answer
325 views

leaflet geojson contextmenu

I want to add a context menu on right click for various elements on my geojson layer (I'm doing a road map so on a right click on the road at any part I want to show the context menu). I've managed ...
0
votes
0answers
108 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
0answers
31 views

Leaflet update getcenter coordinates

I am bringing in leaflet routing control into my map and I would like to have the route icons show up in the center of the current view. using the code below I can get the icons to show up at the ...
2
votes
1answer
67 views

Leaflet Marker Mouseover Popup

I've tried to make a MouseOver Markers Popup since a couple of days, I'm using Leaflet. I know some solutions I've read in many forums, but I wanna make it work with GeoJSON-Points and I haven't found ...
1
vote
1answer
242 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 ...
1
vote
2answers
45 views

Most efficient method to get national-level data displayed with Leaflet

I'm looking for the most efficient way to get a national or U.S. and Canada level dataset working with a JS mapping library. My problem is there's a myriad of technologies that seem like they can ...
0
votes
1answer
43 views

Overlay layer not displayed above Base layer for custom panels of Leaflet.groupedlayercontrol plugin

I created simple web map (example http://jsfiddle.net/q77wk17z/1/) with one Overlay and several Base layers using Leaflet.groupedlayercontrol plugin. Overlay and Base layers divide on separate layer ...
0
votes
1answer
68 views

Compare several Overlay Layers with Base Layer in Leaflet

I write web app for comparing several Overlay Layers (in example OSM tile layers) with Base Layer (in example Bing Aerial layer) in Leaflet. It's work in 'first loaded' level zoom. But when I ...
0
votes
1answer
62 views

Adding comments using leaflet draw

I am working on an application that will leverage the leaflet draw plugin so that a user can open my map and drop comments in the form of markers. Then the user can click submit and it will serve me ...
0
votes
1answer
28 views

Positioning leaflet divIcon when adjusting size using css

I am using the L.divIcon when using iconSize:null which is causing iconAnchor:[0,0] to not be recognized,my code looks like this: var divIcon =L.divIcon({ className:'current-location-icon', ...
0
votes
1answer
178 views

Change marker's size by with zoom in Leaflet

I get stuck with changing my marker's size when zoom changes in my Leaflet code. It's a simple map with a metro stations overlay coming from an ArcGIS Server. The markers are coming from that same ...
5
votes
2answers
684 views

Large loads geojson from mysql to leaflet?

I have a mysql database with +25K rows including geometry and other attributes. Using a mysql2geojson php script I then added it to a leaflet map. It is super slow now, what can I do to boost the ...
2
votes
1answer
37 views

Control to select data source on Leaflet map

I am building a map using leaflet. My data source looks something like this: var districts = {"type": "FeatureCollection", "features": [ {"type":"Feature", "geometry": ...
2
votes
0answers
43 views

Batch create leaflet webmaps in QGIS

During a project on the spider fauna of Greece, we have to face the design of distribution maps of the species. A good tool to work with is the design of leaflet webmaps to be used on the website ...
13
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7answers
1k views

Comparing two maps with nice web interface?

Is it possible in Leaflet or OpenLayers to compare two maps with a bar to slide between the two? Examples include: ...
2
votes
2answers
1k views

UTM Grid as a Layer with Leaflet

How can I display a UTM Grid as a layer with Leaflet? Search a way to embed a OpenStreetMap map with Leaflet in a website. Particularity. I want to display a UTM Grid as a Layer. In addition, lower ...
0
votes
1answer
119 views

CartoDB.js SQL API editing geometry

Is there anyway you can allow users to edit the geometry of shapes (e.g. move an existing point) using the CartoDB.js or CartDB SQL API libraries. I realise you can do this directly in the CartoDB ...
0
votes
3answers
61 views

Get basic image/utf grid tile URLs from CartoDB visualization?

I'd like to add the layers from a CartoDB visualization to a Leaflet map directly (NOT through CartoDB.js). My visualization has one image tile layer generated from data, and one utf grid tile layer ...