我在 AmCharts 4 map 上开始新项目，我想在单击所选点时获取数据。现在我有点击事件，但我不知道如何从数组中获取数据，例如 id 和标题。
// Create image series
var imageSeries = chart.series.push(new am4maps.MapImageSeries());
// Create a circle image in image series template so it gets replicated to all new images
var imageSeriesTemplate = imageSeries.mapImages.template;
var circle = imageSeriesTemplate.createChild(am4core.Circle);
//create circle/points
circle.radius = 5;
circle.fill = am4core.color("#000000");
circle.strokeWidth = 3;
circle.nonScaling = true;
circle.tooltipText = "{title}" + "{id}";
// Set prope fields
imageSeriesTemplate.propertyFields.latitude = "latitude";
imageSeriesTemplate.propertyFields.longitude = "longitude";
// example data cities
imageSeries.data = [{
"latitude": 48.856614,
"longitude": 2.352222,
"title": "Paris",
"id": 102
}, {
"latitude": 47.856614,
"longitude": 2.352222,
"title": "second Paris",
"id": 104
}];
//click on point event
circle.events.on("hit", function(ev) {
// HERE, WHAT CAN I DO??
console.log("clicked on ", ev.target);
}, this);
最佳答案
那就是:
imageSeriesTemplate.events.on("命中", (ev)=>{
console.log(ev.target.dataItem.dataContext.title)
})
关于javascript - AmCharts 4 - 从 map 上的点获取数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54562895/