我想画一幅画上几条路线的地图。
我想要一个带有数字1,..,n
的保管箱当选择了Dropbox中的项目时,相应的路线会在地图上突出显示。
我已经开始使用"传单"。
为什么我的resetStyle()
没有将线条恢复原状?
这是我的代码:
document.onload = loadMap();
function loadMap() {
var map = L.map('map').setView([37.8, -96], 4);
L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token={accessToken}', {
attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors,<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="http://mapbox.com">Mapbox</a>',
maxZoom: 18,
id: 'mapbox.streets',
accessToken: 'pk.eyJ1IjoiZW==========yJ9.3HqHQ4BMRvSPaYe8ToA7YQ'
}).addTo(map);
var marker = L.marker([51.5, -0.09]).addTo(map);
var myLines = [{
"type": "LineString",
"properties": {
"id": "1"
}
"coordinates": [
[-100, 40],
[-105, 45],
[-110, 55]
]
}, {
"type": "LineString",
"properties": {
"id": "2"
}
"coordinates": [
[-105, 40],
[-110, 45],
[-115, 55]
]
}];
var myLayer = L.geoJson().addTo(map);
myLayer.addData(myLines);
geojson = L.geoJson(myLines, {
onEachFeature: onEachFeature
}).addTo(map);
}
function highlightFeature(e) {
var layer = e.target;
layer
layer.setStyle({
weight: 25,
color: '#ff3300',
dashArray: '',
fillOpacity: 0.7
});
if (!L.Browser.ie && !L.Browser.opera) {
layer.bringToFront();
}
}
function resetHighlight(e) {
geojson.resetStyle(e.target);
layer.setStyle({
weight: 5,
color: '#0000ff',
dashArray: '',
fillOpacity: 0.7
});
}
function onEachFeature(feature, layer) {
layer.on({
mouseover: highlightFeature,
mouseout: resetHighlight,
// click: zoomToFeature
});
}
$('select[name="dropdown"]').change(function() {
var item = $(this).val();
alert("call the do something function on option " + item);
//how to make the chosen line highlighted ??
});
&#13;
答案 0 :(得分:1)
resetStyle
L.GeoJSON
方法将给定图层的样式重置为初始化L.GeoJSON
图层时定义的样式:
将给定的矢量图层样式重置为原始GeoJSON样式,对悬停事件后重置样式非常有用。
http://leafletjs.com/reference.html#geojson-resetstyle
代码示例:
var geojsonLayer = new L.GeoJSON(geojson, {
style: function () {
return {
color: 'red'
}
},
onEachFeature: function (feature, layer) {
layer.on('mouseover', function () {
this.setStyle({
color: 'green'
});
});
layer.on('mouseout', function () {
geojsonLayer.resetStyle(this);
});
}
}).addTo(map);
关于Plunker的工作示例:http://plnkr.co/edit/iriGMBYiFRizeXizMF06?p=preview