An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps
1
vote
1answer
35 views
QGIS coordinates are very large
I've created a custom map in QGIS, with a few shapefiles. I'm using leaflet.js to render the map and the shapefile points and everything lines up correctly. The CRS is set to 4326.
When I export the ...
2
votes
1answer
187 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 ...
1
vote
2answers
63 views
OpenLayers vs Leaflet for specific app
Could anybody give me some advice on which one should I use? OpenLayers or Leaflet
I will implement OSM on a web-app for taxi management.
The requirements for the map part are:
Tracking of the ...
0
votes
0answers
22 views
Point Within, Query in a buffer polygon in WMS like in ArcGIS ESRI
I need to do a query to filter the result inside a polygon or geometry, like this:
http://help.arcgis.com/en/webapi/javascript/arcgis/jssamples/query_buffer.html
But, i need to do this in a opengeo ...
4
votes
1answer
687 views
Auto zoom on multipolygon with leaflet
I have a geojson with a multipolygon and I want to fit this multipolygon to the map. The map center only on one polygon not on the multipolygon.
Here is my script
var map = L.map('map',{ ...
0
votes
0answers
16 views
Leaflet pro4leaflet
I am looking at having both EPSG4326 tiles and EPSG3857(cloudmade) tiles on a single map (but separate layers). I have been looking at the proj4leaflet plugin, and it "appears" to me that this might ...
0
votes
0answers
16 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 ...
1
vote
1answer
184 views
Slow tiles generation for leaflet js
I am currently trying to use leaflet to display images (jpeg or png) instead of maps, I have followed the instructions on this blog post to create the tiles using gdal2tiles.py here is the code we ...
1
vote
2answers
383 views
How to open popup menu on right click in Leaflet
I want to open a popup menu list on right click with Leaflet map. I have tried the ContextMenu of leaflet but couldn't do it. Here is the sort of code I used.
map.on('contextmenu', L.popup()
...
1
vote
2answers
69 views
How to add a polygon from GeoJson into Leaflet?
I try to use the following function to add polygons to my Leaflet map.
function polygon(geojson)
{
alert(geojson); // alert for testing
layer = L.geoJson(geojson);
layer.addTo(map);
}
...
5
votes
2answers
178 views
Tilemill Dynamic Tile Generation
I have recently used Tilemill and I wish to implement it for dynamic tile rendering.As I've seen an CartoDB doing in cloud system,they can query & generate dynamic tile for request with UTFGrid.
...
0
votes
0answers
32 views
Show UTFGrid from a local map in MBtiles
Good afternoon:
I have created a map using TileMill, exported it to MBTiles and uploated it to MapBox.
I want to show the map and its UTFGrid using Leaflet and Openlayers.
With this code, I can do ...
0
votes
0answers
27 views
repost: how to show context menu in Leaflet [duplicate]
I asked similar question earlier but didn't get suitable answer. I am now asking again with more clarification. Please see the following google right click menu. I want to create something like this ...
2
votes
1answer
67 views
Value at a particular spot on Geoserver Heatmap
Geoserver is drawing from a PostGIS database to generate a heatmap using this SLD extension. Leaflet then overlays the heatmap over the base layer.
Question: How can you determine the value at a ...
1
vote
0answers
17 views
Updating leaflet variable using dajax?
Really, I think this a somewhat easy question for someone with some more experience in javascript programming.
I have a Django app to map some locations using leaflet. I'm using dajax for some on ...
1
vote
1answer
133 views
Polygon intersection with bounding box with polygon's holes intact
I am trying to serve GeoJSON FeatureCollection tiles with each feature's geometries trimmed to the tile boundary.
I am working on a Leaflet plugin to re-assemble the geometries. It works by building ...
0
votes
1answer
157 views
How to keep bound popups from opening on [click]?
I am working on a map application which creates and binds popups on markers and polyline objects.
The popups are created and bound lazily, i.e. ad-hoc when a user clicks on a specific object. The ...
0
votes
1answer
75 views
label for circle marker in leaflet
I am able to add label to circlemarker like this
L.circleMarker(points[i],{title: 'unselected'}).bindLabel('Destination').addTo(map);
This adds label which appears on mouse hover on circle marker.
...
0
votes
1answer
96 views
Leaflet Polyline with custom fill pattern
I'm drawing Lines with leaflet.js an have to create custom styled polylines.
So i got various image files which should be like a repeated background image in HTML.
So is it possible to give a drawn ...
1
vote
1answer
114 views
How do I add my own map layers to Leaflet
I have a Leaflet map and want to add two of my own small polygon layers (currently in shapefile format, but they could be converted to GeoJSON). Can this be done without a mapserver to publish them ...
2
votes
1answer
178 views
select two markers & draw line between them in leaflet
I am very much new to leaflet.
I have multiple markers plotted on my map in leaflet.
now I have to draw line between two markers when I select them.
Can any one help in doing this.
0
votes
1answer
140 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 ...
0
votes
1answer
32 views
How to add text-only labels on Leaflet map with no icon
I'm looking for a way to show text on Leaflet map using markers or anything else without showing any icon. I want to show text only and be able to style and rotate it... Any suggestion?
Thanks a lot
...
2
votes
3answers
137 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 ...
0
votes
0answers
13 views
GeoServer/Leaflet - Context menu to change raster [duplicate]
It's my first GIS project and after days of reading, it is still not clear how I should start.
I'm using GeoServer to serve GeoTiff images in WMS to a leaflet application. It works great.
Those ...
0
votes
1answer
51 views
QuantumGIS EPSG:3857 doesn't match with leaflet
Leaflet documentation said that they has EPSG:3857 as default projection.
Using QGIS with open layer plugin, I point to a location to find it's coordinate.
I used EPSG:3857 in QGIS as well.
The ...
0
votes
1answer
75 views
find route distance & time taken to travel between two points using leaflet
I am able to find route between two points using cloud mode & leaflet using this.
CloudMade Routing with Leaflet: route is not displayed
But I also want to find distance & time taken to travel ...
2
votes
1answer
42 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 ...
0
votes
1answer
75 views
How to properly use PostGIS with Maps
First time using PostGIS in an app.
Target:
- Get Heat Map of customers from address table using leaflet.js and heatmap.js
Have DB called store_dev.
Installed OSM Bright from Mapbox in it.
Have a ...
1
vote
1answer
80 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
votes
0answers
46 views
Reset style on select Leaflet polyline
Using Leaflet, how can I reset a polyline to it's previous color after it was selected? I have the following function that has been applied to each polyline when constructed:
function ...
21
votes
3answers
3k views
Should I use OpenLayers or Leaflet?
I was debating with one of my collegues on OpenLayers v/s Leaflet. I made a point that OpenLayers is much better API if we wish to build a project, where you need direct connectivity to the Geoserver ...
12
votes
4answers
259 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
345 views
Leaflet, defining a specific region for a canvas to draw upon
Using leaflet, you can draw on a given map by adding a Canvas layer. Some instructions are given here, http://leaflet.cloudmade.com/reference.html#tilelayer-canvas
var canvasTiles = new ...
0
votes
1answer
35 views
TypeError in leaflet on zoom in or out
I am working on an application that renders land parcels from PostGIS as polygons in Leaflet.
I have an event handler set for 'viewreset' on the map:
this.leaflet_map.on('viewreset', ...
10
votes
3answers
2k views
Open source alternatives to Google's StreetView engine?
I am looking to create an open source javascript app using either Leaflet or OpenLayers. Is there any way to implement panoramic views (similar to Google's StreetView) into either of these, or any ...
2
votes
2answers
69 views
Slippy map format
When do you decide which to use? I've started using Geoserver and it seems like map files are downloaded to the browser (using Leaflet) in the WFS format.
When I look at OSM, Mapbox etc, they use ...
0
votes
1answer
72 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 ...
1
vote
0answers
52 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 ...
11
votes
8answers
6k views
How to Create Animated Cluster Markers in OpenLayers/Leaflet?
I want to use Leaflet due to the smooth transitions which Openlayers seems like they can't match. I specifically require the ability to cluster markers with custom styled marker groups.
The best ...
0
votes
0answers
56 views
Use leaflet draw plugin with mobile application
I am working on an Android project using leaflet to show a map, but I also want to add drawing features to my application. I found the leaflet draw plugin, but it's not really designed for mobile ...
5
votes
4answers
300 views
GeoJSON too bulky - what to do?
I am using leaflet.js to allow web users to select a region. Valid regions are US states, Canadian providences, and world countries (except for US and Canada). I constructed a shapefile myself using ...
0
votes
2answers
171 views
How to draw line in leaflet using postGIS road data
I have few points from server and I want to draw a line with this point on road. But the leaflet drawing point to point line as shown in picture in orange color. But I want to draw the line ...
3
votes
1answer
98 views
GeoServer 2.3.0 Proxy Setting
I've upgraded to GeoServer 2.3.0 running on Apache Tomcat 7.0.39 on my host WebFaction. My websites and GeoServer are on same host but different ports. How do I go about setting a proxy so that my ...
1
vote
1answer
50 views
Create buffer around point in LeafletJS?
I am using LeafletJS. I want to create buffer around point. after Selecting a point buffer radius will be specifed by user in feet.
After searching of awhile I found this link of JSTS. does JSTS ...
7
votes
1answer
161 views
Generating Heatmap from PostGIS
I have GIS data in a PostGIS data base and would like to generate a density map and display them on a Leaflet/Google Maps.
Question: What is the recommended/typical method for doing so, without ...
0
votes
2answers
711 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 ...
8
votes
5answers
3k views
How to convert ArcGIS Server JSON to GeoJSON?
I'm creating a web map using Leaflet, and I want to be able to grab feature layers from our ArcServer. I have successfully been able to retrieve a feature class as JSON, but Esri's JSON objects don't ...
0
votes
1answer
183 views
Leaflet - how can I call custom js after drawing polygon?
I want to draw a polygon on a leaflet map and afterwards send it to the DB and retrieve all objects that intersect that polygon.
In Openlayers I did it by using custom function in "featureAdded:" ...
1
vote
3answers
1k views
How to get the Lat, Long of a clicked location using Leaflet API?
I am using OSM with leaflet API. Now i want to get the lat and long of a clicked location. I meant something similar to this. ex: http://openlayers.org/dev/examples/click.html
...
