# 拾取注记要素
# 使用示例
<script>
var map = L.map('map', {
crs: L.CRS.CustomEPSG4326,
center: {lon: 120.09215287988154, lat: 30.277052933991797},
zoom: 12,
inertiaDeceleration: 15000,
maxZoom: 20
})
//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}'
dataSource.newEngine = true;
labelLayer.addDataSource(dataSource)
map.addLayer(labelLayer)
map.on('click', function (e) {
var event = e.originalEvent
var feature = labelLayer.getFeatureByXY(event.x, event.y)
if (feature) {
alert(feature.label)
}
})
</script>1
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运行结果