Questions tagged [leaflet]
Leaflet is an open-source JavaScript library for mobile-friendly, cross-browser, interactive maps. For the R leaflet package, please use the r-leaflet tag.
leaflet
13,984
questions
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One Json file, 2 values to filter, followed by inclusion in the Leaflet Menu Control
I have been on Leaflet maps for a few weeks. We are switching from Google maps to Leaflet. I work with a non-profit organization providing support for citizen water quality samplers.
I do not mind ...
- 11
0
votes
0
answers
16
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setZoom not working in Chrome but is working in other browsers
I am unable to get setZoom or any of the zoom features to work on my leaflet map in Chrome.
It works fine in Firefox and Edge but I need it to work in Chrome also and cannot find anything on this.
Any ...
- 1
1
vote
4
answers
1k
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How change size of Map in Leaflet v3 React (Inmutable properties)
I´ve been reading the changelog in v3 and I see several changes.
The Map component is replaced by MapContainer, behaving differently, among other things that props are immutable
I would like to create ...
- 1
0
votes
1
answer
47
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Connecting R Leaflet to esri vector tile service
I'm building a Shiny leaflet application that I want to use a ESRI vector tile map from my organization for. I can see that leaflet connects to it as the attribution is accurate. However the tiles ...
- 2,521
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20
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How can i pass in coords to draw the correct shape on an IMAGE?
can I pass actual x / y cords to Leaflet.js to draw a shape? - I have tried using actual cords and the shape is nothing like I expect - also SetView cords can I pass them here too ?
Code:
var map = L....
- 16.4k
4
votes
2
answers
2k
views
Calculating Mercator d3 scaling to match Leaflet zoom level
Given a Leaflet zoom level (0..22), how would I calculate D3 scaling value for geoMercator projection? At zoom=0, the whole world fits within a single tile (256x256). In tiles, the world size is 2^...
- 51
0
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32
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Why are my leaflet points stuck to the map edge?
I try to plot transit stops on a leaflet map, indicating local clustering ("LISA"), based on Moran's I. The map is embedded in an R markdown file.
I've successfully done that with polygon ...
- 23
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1
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34
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WMS service basic authentication
I am building a leaflet map on a server without root access.
I'd like to add a WMS service which is secured by basic authentication(username and password).
There is a simple method in leaflet adding ...
- 9,174
0
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1
answer
23
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Is it possible to count the occurrence number of a custom icon in Leaflet? If yes, how to do it?
Firstly, I'm a beginner, I've learned a lot from you.
I have 5 custom icons defined:
//Awesome icons
var LeafIcon = L.Icon.extend({
options: {
shadowUrl: "markers-shadow.png",
...
- 9,174
6
votes
3
answers
5k
views
Coordinates of current mouse position on leaflet map with shiny
I want to access the current mouse position in a leaflet map in shiny. When using shiny you can get the current coordinates of a click event using input$MAPID_click, which contains latitude and ...
0
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3
answers
768
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Update/Reload specific tile in leaflet dynamicly
If my server tells the clients when and what tile to reload/update, how can reload/update the tile sent from the server? I'm using the L.CRS.Simple CRS. And I have no zoom levels on a custom game map.
...
- 12.6k
1
vote
1
answer
728
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Do I need to extend Leaflet's marker class to add properties?
It's something that I have very rarely done - adding properties to a Leaflet marker.
I was reading this page which says that we should
customMarker = L.Marker.extend({
options: {
name: '',
...
- 16.4k
1
vote
1
answer
564
views
how to keep class attribute stored for Leaflet.js markers
I have a set of markers each stored in different Layers... lets say:
let earth= {
layer:{
...
Markers:{...}
}
}
let mars= {
layer:{
...
Markers:{...}
}
}...
- 5,615
121
votes
20
answers
235k
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Leaflet changing Marker color
Is there a way to randomly change marker-colors in native Leaflet? I'm using svg elements which could be styled.
I know that it is possible with mapbox.js
To clarify what I intend to do: If you add ...
- 5,615
0
votes
0
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41
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How can I improve React Leaflet performance when rapidly updating a marker position?
I'm working on a page which reads GPX files (a series of lat/lon GPS points) and plots the route using React Leaflet as well as showing an elevation profile using react-chartjs-2.
When hovering over ...
- 1,330