JavaScript中传单杂食csv数据的图层组和控件
我将按照本手册的内容,使用以下命令为一组csv数据应用图层控制。虽然我成功地复制了一个映射(),但我没有太多的运气添加图标作为图层组来控制它,如图所示 这就是我迄今为止所尝试的:JavaScript中传单杂食csv数据的图层组和控件,javascript,csv,leaflet,Javascript,Csv,Leaflet,我将按照本手册的内容,使用以下命令为一组csv数据应用图层控制。虽然我成功地复制了一个映射(),但我没有太多的运气添加图标作为图层组来控制它,如图所示 这就是我迄今为止所尝试的: <!DOCTYPE html> <html> <head> <title>leaflet-map-csv</title> <meta name="viewport" content="width=device-width, initial-sca
<!DOCTYPE html>
<html>
<head>
<title>leaflet-map-csv</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta charset="utf-8">
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css"/>
<script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet.js"></script>
<script src='https://api.tiles.mapbox.com/mapbox.js/plugins/leaflet-omnivore/v0.3.1/leaflet-omnivore.min.js'></script>
<style>
body { margin:0; padding:0; }
#map { position: absolute; top:0; bottom:0; right:0; left:0; }
</style>
</head>
<body>
<div id="map"></div>
<script>
var map = L.map('map', {
center: [41.77, -72.69],
zoom: 8,
scrollWheelZoom: true,
layers: [grayscale]
});
var grayscale = L.tileLayer('https://cartodb-basemaps-{s}.global.ssl.fastly.net/light_all/{z}/{x}/{y}.png', {
attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>, © <a href="https://carto.com/attribution">CARTO</a>'}).addTo(map);
var baseMaps = {
"Grayscale": grayscale
};
var overlayMaps = {
"Cities": colleges
};
var customLayer = L.geoJson(null, {
onEachFeature: function(feature, layer) {
layer.bindPopup(feature.properties.Title);
}
});
var colleges = omnivore.csv('https://raw.githubusercontent.com/JackDougherty/leaflet-map-csv/master/data.csv', null, customLayer)
.on('ready', function() {
map.fitBounds(colleges.getBounds());
}).addTo(map);
var cities = L.layerGroup([customLayer]);
L.control.layers(baseMaps, overlayMaps).addTo(map);
</script>
</body>
</html>
单张地图
正文{margin:0;padding:0;}
#映射{位置:绝对;顶部:0;底部:0;右侧:0;左侧:0;}
var map=L.map('map'{
中间:[41.77,-72.69],
缩放:8,
滚轮缩放:对,
图层:[灰度]
});
var灰度=L.tileLayer('https://cartodb-basemaps-{s} .global.ssl.fastly.net/light_all/{z}/{x}/{y}.png'{
属性:'©;,©;'}).addTo(映射);
变量基本映射={
“灰度”:灰度
};
var overlayMaps={
“城市”:大学
};
var customLayer=L.geoJson(空{
onEachFeature:功能(功能,图层){
layer.bindPopup(feature.properties.Title);
}
});
var colleges=杂食性.csv('https://raw.githubusercontent.com/JackDougherty/leaflet-map-csv/master/data.csv,空,自定义层)
.on('ready',function(){
map.fitBounds(colleges.getBounds());
}).addTo(地图);
var cities=L.layerGroup([customLayer]);
L.控制。图层(底图、覆盖图)。添加到(地图);
您需要执行代码,以便在on('ready')函数中创建控制层:
var mbAttr='Map data©;贡献者,'+
', ' +
“图像”,
姆布尔https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyj1ijoibwwwwym94iiwiysi6imnpejy4nxvycta2emycxbndhrqcmz3n3gifq.rjfig214ariislb6b5aw';
var灰度=L.tileLayer(mbUrl{
id:'地图盒.灯光',
署名:mbAttr
}),
街道=L.Tillelayer(mbUrl{
id:“地图盒。街道”,
署名:mbAttr
});
var cities=L.layerGroup();
var map=L.map('map'{
中间:[41.77,-72.69],
缩放:8,
滚轮缩放:错误,
图层:[灰度,城市]
});
//显示带有灯光特征和标签的Carto底图分幅
L.tileLayer('https://cartodb-basemaps-{s} .global.ssl.fastly.net/light_all/{z}/{x}/{y}.png'{
属性:'©;,©;'
}).addTo(地图);
L.tileLayer('https://stamen-tiles.a.ssl.fastly.net/terrain/{z} /{x}/{y}.png'{
属性:“地图平铺依据,在下方。数据依据,在下方。”
});
var customLayer=L.geoJson(空{
onEachFeature:功能(功能,图层){
layer.bindPopup(feature.properties.Title);
}
});
var runLayer=omnivore.csv('https://raw.githubusercontent.com/JackDougherty/leaflet-map-csv/master/data.csv,空,自定义层)
.on('ready',function(){
for(自定义层中的var键。\u层){
customLayer.\u layers[key].addTo(城市);
}
fitBounds(runLayer.getBounds());
变量基本映射={
“灰度”:灰度,
“街道”:街道
};
var overlayMaps={
“城市”:城市
};
L.控制。图层(底图、覆盖图)。添加到(地图);
})
.addTo(地图)代码>
#地图{
高度:400px;
}
是否要在右上角显示图层图标,以便切换标记?是的,那太好了!谢谢我将在星期一查看!