# 过滤图元要素
# 使用示例
<script>
var map = L.map('map', {
crs: L.CRS.CustomEPSG4326,
center: {lon: 121.4302, lat: 28.6024},
zoom: 12,
inertiaDeceleration: 15000,
maxZoom: 20
});
//添加底图
var layer = new L.GXYZ(window.leaflet.vmapUrl + '&x={x}&y={y}&l={z}', {tileSize: 512})
map.addLayer(layer);
//过滤，只显示设置的要素
var filter = new Custom.Filter();
filter.otherDisplay = false;
var filterLayer = new Custom.FilterLayer();
filterLayer.id = '水系_水系_面';
// filterLayer.idFilter = '21259';
filter.addFilterLayer(filterLayer);
layer.setFilter(filter);
</script>1
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运行结果