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# 绘制面

# 使用示例

 




















<script>
    var map = L.map('map', {
        crs: L.CRS.CustomEPSG4326,
        center: {lon: 121.4302, lat: 28.6024},
        zoom: 16,
        inertiaDeceleration: 15000,
        maxZoom: 20
    })
    //添加底图
    var layer = new L.GVMapGrid(window.leaflet.getDataUrl + '&x={x}&y={y}&l={z}')
    map.addLayer(layer)

    //添加注记
    var labelLayer = new L.GWVTAnno({tileSize: 512})
    var dataSource = new Custom.URLDataSource()
    dataSource.url = window.leaflet.labelUrl + '&x={x}&y={y}&l={z}'
    labelLayer.addDataSource(dataSource)
    map.addLayer(labelLayer)
    var latlngs = [map.getCenter(), [28.602, 121.43], [28.6035, 121.4315], [28.607, 121.434], [28.609, 121.434], map.getCenter()]
    L.polygon(latlngs, {color: '#000eff', fillColor: 'red', weight: 1}).addTo(map)
</script>
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运行结果

查看源码 ->

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