agriculture-platform / leaflet-panel-layers

Leaflet Control Layers extended with support groups and icons which is compatible with Leaflet 1.0+

Leaflet Panel Layers

Leaflet Control Layers extended with support groups and icons

This plugin is modified from Leaflet Control Layers which only works for Leaflet 0.7.3 before.

If you use the above plugin in Leaflet 1.0+, you'll find the panel do not display anything.

So I modified the above project and here it's completely compatible for Leaflet 1.0+.

demo: labs.easyblog.it/maps/leaflet-panel-layers

#Usage

Panel Item Definition formats

	{
		name: "Bar",
		icon: iconByName('bar'),
		layer: L.geoJson(Bar, {pointToLayer: featureToMarker })
	}

	{
		layer: {
			type: "geoJson",
			args: [ river ]
		},
	}

	{
		group: "Title Group",
		collapsed: true,
		layers: [
		...other items...
		]
	}

Multiple active layers with icons

var baseLayers = [
	{
		active: true,
		name: "OpenStreetMap",
		layer: L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png')
	}
];
var overLayers = [
	{
		name: "Drinking Water",
		icon: '<i class="icon icon-water"></i>',
		layer: L.geoJson(WaterGeoJSON)
	},
	{
		active: true,
		name: "Parking",
		icon: '<i class="icon icon-parking"></i>',
		layer: L.geoJson(ParkingGeoJSON)
	}
];
map.addControl( new L.Control.PanelLayers(baseLayers, overLayers) );

Build panel layers from pure JSON Config

var panelJsonConfig = {
    "baselayers": [
        {
            "active": true,
            "name": "Open Cycle Map",
            "layer": {
                "type": "tileLayer",
                "args": [
                    "http://{s}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png"
                ]
            }
        },
        {
            "name": "Landscape",
            "layer": {
                "type": "tileLayer",
                "args": [
                    "http://{s}.tile3.opencyclemap.org/landscape/{z}/{x}/{y}.png"
                ]
            }
        },        
        {
            "name": "Transports",
            "layer": {
                "type": "tileLayer",
                "args": [
                    "http://{s}.tile2.opencyclemap.org/transport/{z}/{x}/{y}.png"
                ]
            }
        }
    ],
    "overlayers": [
        {
            "name": "Terrain",
            "layer": {
            "type": "tileLayer",
            "args": [
                "http://toolserver.org/~cmarqu/hill/{z}/{x}/{y}.png", {
                "opacity": 0.5
                }
            ]
            }
        }
    ]
};
L.control.panelLayers(panelJsonConfig.baseLayers, panelJsonConfig.overLayers).addTo(map);

Grouping of layers

L.control.panelLayers(
	[
		{
			name: "Open Street Map",
			layer: osmLayer
		},
		{
			group: "Walking layers",
			layers: [
				{
					name: "Open Cycle Map",
					layer: L.tileLayer('http://{s}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png')
				},
				{
					name: "Hiking",
					layer: L.tileLayer("http://toolserver.org/tiles/hikebike/{z}/{x}/{y}.png")
				}
			]
		},
		{
			group: "Road layers",
			layers: [
				{
					name: "Transports",
					layer: L.tileLayer("http://{s}.tile2.opencyclemap.org/transport/{z}/{x}/{y}.png")
				}
			]
		}
	],
	{collapsibleGroups: true}
).addTo(map);

Collapse some layers' groups

L.control.panelLayers([
	{
		name: "Open Street Map",
		layer: osmLayer
	},
	{
		group: "Walking layers",
		layers: [
			{
				name: "Open Cycle Map",
				layer: L.tileLayer('http://{s}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png')
			},
			{
				name: "Hiking",
				layer: L.tileLayer("http://toolserver.org/tiles/hikebike/{z}/{x}/{y}.png")
			}			
		]
	},
	{
		group: "Road layers",
		collapsed: true,
		layers: [
			{
				name: "Transports",
				layer: L.tileLayer("http://{s}.tile2.opencyclemap.org/transport/{z}/{x}/{y}.png")
			}
		]
	}
]).addTo(map);

Add layers dynamically at runtime

var panel = L.control.panelLayers();

$.getJSON('some/url/path.geojson', function(data){
	panel.addOverlay({
		name: "Drinking Water",
		icon: '<i class="icon icon-water"></i>',
		layer: L.geoJson(data)
	});
});

#Build

This plugin support Grunt for building process. Therefore the deployment require NPM installed in your system. After you've made sure to have npm working, run this in command line:

npm install
grunt