Leaflet.Snap

Enables snapping of draggable markers to polylines and other layers !

Check out the demo !

It depends on Leaflet.GeometryUtil.

For Polyline edition snapping it also depends on Leaflet.draw.

If your guide layer contains several thousands for features, adding the LayerIndex is recommended, this plugin takes advantage of the spatial index if it is available.

Usage

• Add leaflet.snap.js and leaflet.geometryutil.js (optionally leaflet.draw.js for polyline edition)

For markers :

    var guideLayer = ...;

    var marker = L.marker([48.488, 1.395]).addTo(map);
        marker.snapediting = new L.Handler.MarkerSnap(map, marker);
        marker.snapediting.addGuideLayer(guideLayer);
        marker.snapediting.enable();

For polylines (requires Leaflet.draw):

    var polyline = L.polyline(...).addTo(map);
        polyline.snapediting = new L.Handler.PolylineSnap(map, polyline);
        polyline.snapediting.addGuideLayer(guideLayer);
        polyline.snapediting.enable();

Events:

snap ( layer, latlng ) : fired when snapped to layer at latlng

unsnap ( layer ) : fired when unsnapped from layer

CHANGELOG

• Fix Snaping if guide layer has Leaflet.LayerIndex

TODO

• Add init hooks to simplify initialization

Authors