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

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2
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0answers
425 views

Refresh leaflet marker data in place ? (on insert to sql db)

I have a form that sends data via ajax to be geocoded and inserted into a mysql db. Once that data is there, can I force the marker layer to refresh so that it displays the new data? The SQL API ...
2
votes
0answers
247 views

Load Leaflet map in canvas element

I am working with leaflet tiles loading tiles to a map div http://jsfiddle.net/tBCd5/ I am now playing with some html5 canvas distortions like below http://jsfiddle.net/UF4PK/ It would be cool to ...
2
votes
0answers
399 views

How to add an offset to a GeoJSON layer in Leaflet?

Using the example GeoJSON tutorial code at leafletjs.com. Change the myLines variable so that the two lines overlap, but run in opposite directions as follows: var myLines = [{ "type": ...
2
votes
1answer
81 views

Why aren't my basemap tiles showing up via ArcGIS Server

I have a leaflet js script referencing the ArcGIS server imagery api. The code worked fine up until about two days ago. Now when I click on the layer there's a gray background. I am using my local ...
2
votes
0answers
287 views

Leaflet wms offset on zoom out

I have Leaflet map with base layer (epsg4326) and wms layer of gps point (also epsg4326). I've noticed when I zoom out , the gps point offset to the left. Any idea why it happens ? Here you can see ...
2
votes
0answers
505 views

Does SVG offer better performance than plain HTML to render text labels in Leaflet? [closed]

I'm using Leaflet built-in L.DivIcon to add text labels to my map. Text labels are rendered in simple HTML divs and can be rotated and scaled using CSS based on values obtained from geojson data ...
2
votes
2answers
2k views

Incorporate Google Streetview into a Leaflet map

The person who asked the question at the link below way back in 2011 said, "I understand that it is possible to incorporate Google StreetView into non-Google apps". Can anyone tell me how this is ...
2
votes
0answers
104 views

How to draw ploygon in leaflet that use event?

Is there only one way to draw a polygon through the Leaflet.draw plugin? If you want draw anything, you must add the control ("map.addControl(drawControl);"). I want to draw a polygon on leaflet map ...
2
votes
0answers
716 views

Data visualization techniques for web maps using ESRI and open source suites

I want to represent statistical data over the web map and looking the examples/techniques to represent data on the web map (apart from Pie-chat, bar graph) with new tools like gauge widget etc. ...
2
votes
0answers
107 views

Is it possible to link polyline features on a web map to a Google Chart?

I would like to display a line chart and (leaflet) map beside each other on a web page. When I turn off a series on the chart the associated polyline feature (river) should turn off on the map. I am ...
2
votes
0answers
37 views

Protect our WMS map tiles to only accessible from our site [duplicate]

We are using geoserver (2.3) to serve WMS map tiles generated from mapping data we licenced. We use leaflet on the client side to show the map (part of a ruby on rails site running on heroku). Because ...
2
votes
0answers
226 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 ...
2
votes
0answers
164 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 ...
2
votes
0answers
170 views

Creating polygons for a choropleth map using PostGIS

I have a grid of points, each with a value to it as shown in the image below. The data was retrieved from PostGIS and rendered in Quantum GIS. The final result should be a polygons of a choropleth map ...
2
votes
0answers
984 views

Projecting point in Leaflet from EPSG 900913 (same as 3857) to EPSG 2232 with proj4js returning unexpected results

I have a leaflet map from which I want to be able to query an api that accepts x y values in EPSG 2232 as inputs. Leaflet doesn't handle point transformations like Open Layers does so I am trying to ...
2
votes
0answers
3k views

Having issues getting Leaflet “L.tileLayer.wms” to display Geoserver WMS data

I've set up Geoserver and WMS capabilities to host some weather data files (satellite data for example). Here's an example file: ...
2
votes
0answers
1k views

Problem with multipolygon in Leaflet

I'm using Leaflet L.Polygon, but for some reason there's only blank site. Here's my code: var map = L.map('map').setView([37.8, -96], 4); var cloudmade = ...
2
votes
0answers
435 views

Raster Over Layer in Leaflet from GeoServer

I want to add a raster over layer onto the base layer and the raster layer is published by a Geoserver WMS. I set the raster layer's geographic coordinate system as the same as the cloudmate tiles. ...
2
votes
0answers
1k views

Overlaying a mbtiles tile layer produced with tilemill over another layer maintaining transperency

So using leaflet, I'm overlaying my base tile layer as google satellite imagery. I want to overlay another layer (Mbtiles layer) produced with tilemill over this satellite layer. I was successful in ...
1
vote
3answers
7k views

Dynamically set zoom level based on a bounding box

I have a leaflet map whose size depends on the size of the browser window. I would like the zoom level to be dynamically chosen so that it is as zoomed in as possible while showing the entirety of the ...
1
vote
1answer
7k views

location of a dragged and dropped marker using leaflet

I am using the leaflet API with OSM. I need to implement a functionality where on dragging the marker and dropping it on user preferred location, I need to get its latitude and longitude and save its ...
1
vote
3answers
981 views

How to load geojson vector tiles from mapbox id?

I have some data hosted on mapbox and I'm trying to load it as tiled geojson into Leaflet from its mapbox id (I just want to get plain geojson, I'm not trying to render it). How can I achieved that? ...
1
vote
1answer
678 views

How to improve speed of rendering polygons from Postgis in Leaflet?

I want to improve speed of rendering polygons in my Leaflet map. Polygons are stored in Postgis, and are rendered with select query with bbox. I wonder can I cache somehow those polygons? I read ...
1
vote
2answers
724 views

qgis, simplify parcels to share borders

Is there a QGIS plugin or other method that simplifies parcels to share a common line(border)? I'm pretty sure I read about this some time ago. Couldn't find anything here or elsewhere. I'd like to ...
1
vote
2answers
44 views

Embed a (saved) Leaflet map in an Ioslides presentation

I'm building some fairly complex maps with the leaflet package and I'd like to embed them in an rmarkdown document (specifically an ioslides_presentation .Rmd file). Right now the code for the maps ...
1
vote
2answers
164 views

Fly To Location in Leaflet

Is it possible to 'fly to location' in Leaflet in the same way as this Mapbox GL example?
1
vote
1answer
38 views

Google Spreadsheet as Configuration for Leaflet App

I would like to build a Leaflet Webapp that is highly adaptable and easy to configure. Therefore I would like to use Google Spreadsheets to store the configuration and retrieve the stored information ...
1
vote
2answers
152 views

Invalid GeoJSON object

I'm working with Leaflet trying to get some GeoJSON going. Everything works fine when I directly define a var as the GeoJSON I'm trying to display: var censustracts = { "type": ...
1
vote
2answers
68 views

Load geojson files from a dropdown list

I would like to load geoJSON from a dropdown list. Everything i found was internal plugin for leaflet such as leaflet-geojson-list. I have a html dropdown list but I don't know how to link my geoJSON ...
1
vote
2answers
143 views

How to create a map using LeafLet

Im looking to create a map that can be interactive. The best option that I found is leaflet, the thing is I don't find any resource explaining how to create my own map. Im looking to create an ...
1
vote
1answer
381 views

Multiple GeoJSON Layers

I have a leaflet map of the US and I would like to toggle between zip codes and county shapes. There seems to be no tutorials on how to achieve this in the documentation or an other forums I have ...
1
vote
1answer
110 views

Adding hyperlinks to Leaflet polylines created via Leaflet.Draw?

[Cross posting from StackOverflow as I realized this may be a more specific community for this] I'm using Leaflet.Draw, and I want to allow the lines that I draw to have hyperlinks in them so that ...
1
vote
1answer
114 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> ...
1
vote
2answers
271 views

Tilt of OpenStreetMap with LeafletJs

I am using LeafletJs as mapping library for OpenStreetMaps. Is there any method map.Tilt() in Leaflet api like google provides map = new google.maps.Map(document.getElementById('map-canvas'), { ...
1
vote
2answers
234 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
2answers
2k views

Zip Code-Level Choropleth Using Leaflet.JS

Brand new to Leaflet.js, but I'm enjoying learning it. However, I have a question I've been working on that even the Google hasn't been able to answer just yet. Is it possible to create a choropleth ...
1
vote
2answers
515 views

I've installed OpenGeo Suite, how do I use it with Leaflet?

I've just finished installing OpenGeo Suite on my VM Ubuntu web server. I'd like to be able to use Leaflet from leafletjs.com to view my maps with on my mobile devices. I'm supposed to create an ...
1
vote
1answer
4k views

Using Google Tiles on LeaftLet

I would like to use the Google tiles on LeafLet (RoadMap, Satellite,...). I've tried this https://github.com/shramov/leaflet-plugins and it works fine, but I'm worried about the possible legal ...
1
vote
1answer
957 views

Leaflet Custom menu links

I have an issue where leaflet when embedded in Drupal will not allow the user to click on the map as the Y coordinates have a decimal on for some reason. As a quick fix, I am thinking to put the map ...
1
vote
1answer
1k views

Reprojecting coordinates and geoJSON in leaflet

I have a Leaflet map in default projection and a wms layer also in default (web mercator) projection. I would like to add polylines and a geoJSON layer to my map, but the coordinates are in EPSG4326. ...
1
vote
1answer
2k views

create polylines with different colors in leaflet

I have one function which creates poly line & adds that polyline to map function makeRoute(e) { if(pointsSelection.length > 0) { pointsSelection.push(e.target.getLatLng()); ...
1
vote
2answers
362 views

What are some good examples of geospatial UI's [closed]

I am interested in understanding and applying practical geo-spatial examples for some of the transportation data that I have. I have several geocodes that I will pull from the database, and display in ...
1
vote
1answer
4k views

Syling Leaflet Maps

Is there anyway to style base maps using Leaflet? I know there are quite a few options for loading different pre-made styles (such as Stamen, Mapbox, etc...), but I am looking for a way to create my ...
1
vote
1answer
31 views

How to set bounds and make map bounce back if moved away?

I wanna make this map bounces to the center, and make the red line the limit that you can move the map. Don't know why my fitbounds doesn't work. Any help? My code: var mapBounds = ...
1
vote
1answer
47 views

Leaflet, customizing the layerswitcher [closed]

So i recently decided to switch my project from Openlayers 3 to Leaflet, mainly because i needed the layer switcher control. I followed the example on the leaflet tutorial, this one to be precise and ...
1
vote
2answers
59 views

Leaflet TypeError: this._northEast is undefined

I have some codes used Leaflet and I want to refactor them below one is working: jQuery(document).ready(function(){ $.post("StatisticsResultServlet", { ...
1
vote
2answers
45 views

Displace Lat/Long by meters

Sorry for the inflammatory title, Yes, I know these cannot be added. Problem: I have a vehicle that is reporting LL84, coordinates. It has a sensor that reports footprints of obstacles (LineString, ...
1
vote
1answer
64 views

How to use Igraph with leaflet for R?

I try to draw a graph in map with R code : df<-data.frame("from" = c("Lyon", "Toulouse", "Paris", "Marseille"), "to"= c("Paris", "Paris", "Marseille", "Toulouse")) meta <- ...
1
vote
1answer
112 views

Leaflet: How to create toggleable overlays from a single GeoJSON FeatureCollection?

I am a beginner to Leaflet/Mapbox and I can create a simple map and plot all the points from a GeoJSON FeatureCollection, but I am unsure how to add the ability to toggle (via checkboxes) specific ...
1
vote
1answer
192 views

Leaflet Opacity Control Using Slider For Bootstrap

I am attempting to use the Slider For Bootstrap to update the opacity of a layer within Leaflet. The slider also needs to be in a Bootstrap Popup but this part is working. As per this JSFiddle you ...