Leaflet.Mask

Leaflet.Mask is a Leaflet plugin that loading polygons from geojson to masking the rest of the map.

Check out the demo.

Useage example

var map = L.map("map", {
    center: [29, 120],
    zoom: 8
});
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);

L.mask('bound.json', {}).addTo(map);

Creation

L.mask(geosjon, options?)

Parameter	Type	Description
geosjon	String|Object	.geojson URL or GeoJSON object
options	Object	Layer options

Options

Option	Type	Default	Description
interactive	Boolean	false	If false, the mask layer will not emit mouse events and will act as a part of the underlying map.
fitBounds	Boolean	true	If true, the map fits the maximum zoom level to the given geographical bounds.
restrictBounds	Boolean	true	If true, the map restricts the view to the given geographical bounds, bouncing the user back if the user tries to pan outside the view.

Options inherited from L.Path

Option	Type	Default	Description
stroke	Boolean	true	Whether to draw stroke along the path. Set it to false to disable borders on polygons or circles.
color	String	'#3388ff'	Stroke color
weight	Number	2	Stroke width in pixels
opacity	Number	1.0	Stroke opacity
lineCap	String	'round'	A string that defines shape to be used at the end of the stroke.
lineJoin	String	'round'	A string that defines shape to be used at the corners of the stroke.
dashArray	String	null	A string that defines the stroke dash pattern. Doesn't work on Canvas-powered layers in some old browsers.
dashOffset	String	null	A string that defines the distance into the dash pattern to start the dash. Doesn't work on Canvas-powered layers in some old browsers.
fill	Boolean	depends	Whether to fill the path with color. Set it to false to disable filling on polygons or circles.
fillColor	String	'#FFFFFF'	Fill color.
fillOpacity	Number	1.0	Fill opacity.
fillRule	String	'evenodd'	A string that defines how the inside of a shape is determined.