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Javascript Mapbox GL更改标记图标,单击另一个图标时再次单击并返回_Javascript_Html_Css_Mapbox Gl Js - Fatal编程技术网

Javascript Mapbox GL更改标记图标,单击另一个图标时再次单击并返回

Javascript Mapbox GL更改标记图标,单击另一个图标时再次单击并返回,javascript,html,css,mapbox-gl-js,Javascript,Html,Css,Mapbox Gl Js,如何在单击时更改mapbox gl js标记图标,然后在单击新图标时再次更改?我可以通过为它分配另一个类来了解如何在单击时更改标记,但是当单击新标记时,您将如何再次更改它?我想知道这是否可能。谢谢 <!DOCTYPE html> <html> <head> <meta charset='utf-8' /> <title></title> <meta name='viewport' content

如何在单击时更改mapbox gl js标记图标,然后在单击新图标时再次更改?我可以通过为它分配另一个类来了解如何在单击时更改标记,但是当单击新标记时,您将如何再次更改它?我想知道这是否可能。谢谢

<!DOCTYPE html>
<html>
<head>
    <meta charset='utf-8' />
    <title></title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <link href="https://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet">
    <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.52.0/mapbox-gl.js'></script>
    <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.52.0/mapbox-gl.css' rel='stylesheet' />
    <style>
        body { margin:0; padding:0; }
        #map { position:absolute; top:0; bottom:0; width:100%; }
        .marker {
            background-image: url('mapbox-icon.png');
            background-size: cover;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
        }
        .mapboxgl-popup {
            max-width: 200px;
        }
        .mapboxgl-popup-content {
            text-align: center;
            font-family: 'Open Sans', sans-serif;
        }

    </style>
</head>
<body>

<div id='map'></div>

<script>

mapboxgl.accessToken = 'pk.eyJ1IjoiZXhhbXBsZXMiLCJhIjoiY2lqbmpqazdlMDBsdnRva284cWd3bm11byJ9.V6Hg2oYJwMAxeoR9GEzkAA';

var geojson = {
    "type": "FeatureCollection",
    "features": [{
         "type": "Feature",
         "geometry": {
             "type": "Point",
             "coordinates": [-77.032, 38.913]
         },
         "properties": {
             "title": "Mapbox",
             "description": "Washington, D.C."
         }
     },
     {
         "type": "Feature",
         "geometry": {
         "type": "Point",
         "coordinates": [-122.414, 37.776]
        },
         "properties": {
             "title": "Mapbox",
             "description": "San Francisco, California"
         }
     }]
};

var map = new mapboxgl.Map({
    container: 'map',
    style: 'mapbox://styles/mapbox/light-v10',
    center: [-96, 37.8],
    zoom: 3
});

// add markers to map
geojson.features.forEach(function(marker) {

    // create a HTML element for each feature
    var el = document.createElement('div');
    el.className = 'marker';

    // make a marker for each feature and add it to the map
    new mapboxgl.Marker(el)
        .setLngLat(marker.geometry.coordinates)
        .setPopup(new mapboxgl.Popup({offset: 25}) // add popups
            .setHTML('<h3>' + marker.properties.title + '</h3><p>' + marker.properties.description + '</p>'))
        .addTo(map);

    el.addEventListener('click', function(e){                   
              // change the marker color, then change it back again. 
              // I can set for example el.className = 'marker2'
              // but how can I change it back to the original
   });
});

</script>

</body>
</html>

正文{margin:0;padding:0;}
#映射{位置:绝对;顶部:0;底部:0;宽度:100%;}
.马克{
背景图片:url('mapbox-icon.png');
背景尺寸:封面;
宽度:50px;
高度:50px;
边界半径:50%;
光标:指针;
}
.mapboxgl弹出窗口{
最大宽度:200px;
}
.mapboxgl弹出内容{
文本对齐:居中;
字体系列:“开放式Sans”,无衬线;
}
mapboxgl.accessToken='pk.eyj1ijoizxhbxbszxmilcjhijoi2lqbmpqazdlbsdnrva284cwd3bm11byj9.V6Hg2oYJwMAxeoR9GEzkAA';
var geojson={
“类型”:“FeatureCollection”,
“特点”:[{
“类型”:“功能”,
“几何学”:{
“类型”:“点”,
“坐标”:[-77.032,38.913]
},
“财产”:{
“标题”:“地图盒”,
“描述”:“华盛顿特区”
}
},
{
“类型”:“功能”,
“几何学”:{
“类型”:“点”,
“坐标”:[-122.414,37.776]
},
“财产”:{
“标题”:“地图盒”,
“描述”:“加利福尼亚州旧金山”
}
}]
};
var map=new mapboxgl.map({
容器:“映射”,
风格:'mapbox://styles/mapbox/light-v10',
中心:[-9637.8],
缩放:3
});
//向地图添加标记
geojson.features.forEach(函数(标记){
//为每个功能创建一个HTML元素
var el=document.createElement('div');
el.className='marker';
//为每个要素制作一个标记,并将其添加到地图中
新mapboxgl.标记(el)
.setLngLat(标记、几何、坐标)
.setPopup(新的mapboxgl.Popup({offset:25})//添加弹出窗口
.setHTML(“”+marker.properties.title+''+marker.properties.description+'

')) .addTo(地图); el.addEventListener('click',函数(e){ //更改标记颜色,然后再次更改。 //例如,我可以设置el.className='marker2' //但是我怎样才能把它改回原样呢 }); });
因此,您将
标记2
类设置为单击的标记。在结束之前,您可以在任何具有该类的元素上删除该类。比如:

el.addEventListener('click', function(e){
  // get all the elements with class "marker2"
  var x = document.getElementsByClassName("marker2");
  var i;
  for (i = 0; i < x.length; i++) {
    x[i].className = "marker"; // set "marker" as the class for each of those elements
  }
  // at this point all markers are back to the original state

  // now you set the class of the current clicked marker
  this.className = 'marker2'; //don't use the variable "el", it's out of the scope and can change, "this" is the current clicked element
el.addEventListener('click',函数(e){
//使用类“marker2”获取所有元素
var x=document.getElementsByClassName(“marker2”);
var i;
对于(i=0;i

}))

因此,您将
标记2
类设置为单击的标记。在结束之前,您可以在任何具有该类的元素上删除该类。比如:

el.addEventListener('click', function(e){
  // get all the elements with class "marker2"
  var x = document.getElementsByClassName("marker2");
  var i;
  for (i = 0; i < x.length; i++) {
    x[i].className = "marker"; // set "marker" as the class for each of those elements
  }
  // at this point all markers are back to the original state

  // now you set the class of the current clicked marker
  this.className = 'marker2'; //don't use the variable "el", it's out of the scope and can change, "this" is the current clicked element
el.addEventListener('click',函数(e){
//使用类“marker2”获取所有元素
var x=document.getElementsByClassName(“marker2”);
var i;
对于(i=0;i

}))

您可以获取具有该类名的所有元素(
getElementsByClassName
),删除该类,然后将该类设置为新单击的元素。您可以提供一个示例吗?那你怎么改呢?我已经可以更改类名了。当然可以,但是你说你在有人单击标记时设置了一个新类,尽管我没有看到任何单击事件处理程序。当有人点击merker时,会调用什么函数?如果你能给我指出这个函数,那么编写这个例子就容易多了。你说得对。我用点击事件监听器编辑。谢谢您可以获取具有该类名的所有元素(
getElementsByClassName
),删除该类,然后将该类设置为新单击的元素。您可以提供一个示例吗?那你怎么改呢?我已经可以更改类名了。当然可以,但是你说你在有人单击标记时设置了一个新类,尽管我没有看到任何单击事件处理程序。当有人点击merker时,会调用什么函数?如果你能给我指出这个函数,那么编写这个例子就容易多了。你说得对。我用点击事件监听器编辑。谢谢效果很好。谢谢你的帮助。我很感激!效果很好。谢谢你的帮助。我很感激!