# 绘制线
# 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, 121.439]]
L.polyline(latlngs, {color: 'red'}).addTo(map) //绘制线
var latlngs2 = [map.getCenter(), [28.612, 121.439], [28.601, 121.439]]
L.polyline(latlngs2, {color: 'blue'}).addTo(map) //绘制折线
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运行结果