@jonatanheyman/leaflet-areaselect

Leaflet AreaSelect

AreaSelect is a leaflet plugin for letting users select a square area (bounding box), using a resizable centered box on top of the map.

Another similar plugin is leaflet-locationfilter, which solves the same problem but provides a rectangle that is movable and not fixed to the center, but doesn't support keeping the aspect ratio.

Example Code

    // Add it to the map
    var areaSelect = L.areaSelect({width:200, height:300, minWidth:40, minHeight:40, minHorizontalSpacing:40, minVerticalSpacing:100, keepAspectRatio:false});
    areaSelect.addTo(map);
    
    // Read the bounding box
    var bounds = areaSelect.getBounds();
    
    // Get a callback when the bounds change
    areaSelect.on("change", function() {
        console.log("Bounds:", this.getBounds());
    });
    
    // Set the dimensions of the box
    areaSelect.setDimensions({width: 500, height: 500})

    // And to remove it do:
    //areaSelect.remove();

To make it keep the aspect ratio:

    var areaSelect = L.areaSelect({width:200, height:300, keepAspectRatio:true});

To set the selected area (not compatible with keepAspectRatio:true):

    areaSelect.setBounds([{lat:59.2272559, lng:17.7606917}, {lat:59.4402838, lng:18.2000673}]);

See it in action

Check out the bundled example.

Author

AreaSelect is developed by Jonatan Heyman.

License

MIT License