var ColorVar = '#bd0026'; 
        var firstpolyline = new L.Polyline(polyList, {
        weight: 8,
        smoothFactor: 1

On the page load , i have using the above code after that i want to update the polyline based on the new data without page refreshing for Live Tracking Concept.


not sure if this is what you are after:

// get data using ajax. Might be triggered by a button, some other user interaction, or polling remote tracking data
$.get(url, {params}, function(response, {
   // on success, remove the old polyline

   // refresh the Polyline
   polylist = response.polylist;
   var firstpolyline = new L.Polyline(polyList, {...} );

   // then add the new polyline back to the map 
  • Thanks For your answer. Below code worked. var latLngs =L.latLng(lPolylat, lPolylng); polylineLive.addLatLng(latLngs); – Karthikeyan Oct 1 '15 at 6:42
  • Is it possible get directions on leaflet ? . I have a marker (arrow image) now i want to change the marker position based on co-ordinates. Thanks – Karthikeyan Oct 1 '15 at 6:44
  • there are several leaflet plugins for routing, check out: github.com/perliedman/leaflet-routing-machine – toms Oct 1 '15 at 16:28

For ajax receiving @toms has great answer already.

For redrawing polyline, probably addLatLng will suit your need.
Just do polyline = L.polyline([]).addTo(map); and polyline.addLatLng([x, y]); when new data comes.

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