我使用Laravel,在Vue上有一张Amcharts的地图,并且还有一个带有国家名称的html select。如果我选择一个国家/地区,然后缩放到地图上的国家/地区,如果我单击地图上的一个国家/地区,则所选名称也出现在html select上,该如何解决呢? 我可以通过添加以下行的jquery(无vue)解决此问题:
$('#select').on('change', function() {
var id = this.value;
if ( '' == id ) {
map.clickMapObject(map.dataProvider);
}
else {
map.clickMapObject(map.getObjectById(id));
}
});
map.addListener("clickMapObject", function (event) {
document.getElementById("select").value = event.mapObject.id;
});
但是我想在Vue中做到这一点,但我不太了解应该怎么做。 这是我的index.html
<div id="titles">
<div class="container map">
<div class="row">
<div class="col-md-9" id="mapdiv" style="width: 100%; height: 500px;"></div>
<div class="col-md-3">
<div id="listed">
<ul >
<li v-for="task in filteredCountry">
@{{task.title}}
</li>
</ul>
</div>
<select class="form-control" id="select" name="select" v-model="selectedCountry">
<option value="">Select a country</option>
<option value="All" >All</option>
<option value="AF">Afghanistan</option>
<option value="AX">Åland Islands</option>
<!-- More countries -->
</select>
</div>
</div>
</div>
</div>
Vue:
$( document ).ready(function() {
const app = new Vue({
el: '#titles',
data: {
tasks: {!! $tasks !!},
selectedCountry: "All",
},
created() {
AmCharts.makeChart( "mapdiv", {
"type": "map",
"zoomDuration": 0.1,
"colorSteps": 100,
"dataProvider": {
"map": "worldHigh",
"getAreasFromMap": true,
"areas": <?php echo '' . $countCountries . '' ?>
},
"areasSettings": {
"autoZoom": true,
"colorSolid": "#1B144B",
"selectedColor": "#1B144B",
"color": "#4DC5AC",
},
"valueLegend": {
"right": 100,
"minValue": "some",
"maxValue": "a lot!"
},
});
},
computed: {
filteredCountry: function() {
var app = this;
var countries = app.selectedCountry;
if(countries === "All") {
return app.tasks;
} else {
return app.tasks.filter(function(task) {
return (countries === 'All' || task.countries === countries);
});
}
}
},
});
});
答案 0 :(得分:1)
只需将地图分配给Vue组件上的变量:
this.map = AmCharts.makeChart( "mapdiv", {});
然后在输入/选择项上添加v-on:change=""
属性。
<select v-on:change="onChange()" v-model="selectedCountry">
<!-- Countries here... -->
</select>
然后在您的组件上添加一个名为onChange
的方法:
methods: {
onChange: function() {
// Here do the logic about getting the mapObject you want
// You probaby want to use `this.selectedCountry` from your select
// and do something with the countries id.
var mapObject = map.getObjectById(id);
this.map.clickMapObject(mapObject);
}
}
步骤:
this.map = AmCharts.makeChart( "mapdiv", {
,以便您可以在外部访问。
var mapObject = this.map.getObjectById(id);
中的 onChange
,并且仅与数据对象中的数据map: null,
保持一致。