[GIS] How to change leaflet marker options dynamically

cartographyleafletmarkers

I want to change the draggable state of leaflet marker on some event. Now, we use marker.options.draggable to get the draggable state of that marker. However, I want to set/change that draggable state in some event.

marker  = L.marker([lat,lng],{draggable:true});
draggable_state = marker.options.draggable;

But, below is not working:

marker.options.draggable=false;

How can achieve this?

Best Answer

Marker's have a property called dragging which is an instance of Draggable. You can use marker.dragging.enable() and marker.dragging.disable() to turn dragging on and off. Here's an example: http://jsbin.com/sowere/edit?html,output

Related Solutions

[GIS] Leaflet draggable Marker

you can use map.panTo():

function onMapClick(e) {
  marker = new L.marker(e.latlng, {draggable:'true'});
  marker.on('dragend', function(event){
    var marker = event.target;
    var position = marker.getLatLng();
    marker.setLatLng(new L.LatLng(position.lat, position.lng),{draggable:'true'});
    map.panTo(new L.LatLng(position.lat, position.lng))
  });
  map.addLayer(marker);
};

map.on('click', onMapClick);

Complete html with inline js (minus cloudmade api):

<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.1/leaflet.css" />
<!--[if lte IE 8]>
 <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.1/leaflet.ie.css" />
<![endif]-->
<script src="http://cdn.leafletjs.com/leaflet-0.7.1/leaflet.js"></script>

<div id="map" style="width: 600px; height: 600px;"></div>

<script>

var map = L.map('map').setView([51.505, -0.09], 13);

L.tileLayer('http://{s}.tile.cloudmade.com/API-KEY/997/256/{z}/{x}/{y}.png', {
  attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery ©     <a href="http://cloudmade.com">CloudMade</a>',
  maxZoom: 18
}).addTo(map);

function onMapClick(e) {
  marker = new L.marker(e.latlng, {draggable:'true'});
  marker.on('dragend', function(event){
    var marker = event.target;
    var position = marker.getLatLng();
    marker.setLatLng(new L.LatLng(position.lat, position.lng),{draggable:'true'});
    map.panTo(new L.LatLng(position.lat, position.lng))
  });
  map.addLayer(marker);
};

map.on('click', onMapClick);

</script>

[GIS] Change default leaflet marker color

I'm a little out of my depth using Javascript, but as nobody else answered yet I just want to check that you saw the leafletjs.com page on styling markers here. Please forgive me if I've missed something more subtle about your question.

Best Answer

Related Solutions

[GIS] Leaflet draggable Marker

[GIS] Change default leaflet marker color

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