如何使传单中的标记闪烁 [英] How to make markers in Leaflet blinking

问题描述

有没有一种简单的方法可以使Leaflet地图中的标记闪烁?我的意思是动画眨眼-就像是在1秒钟内从不透明度1.0到不透明度0.5的转换循环，然后在循环结束时反转.

Is there a simple way to make a marker in Leaflet map blinking ? I mean animated blinking - something like a loop of transition from opacity 1.0 to opacity 0.5 in 1 second and then reverse, end of loop.

推荐答案

添加 Marker ，您可以指定 Icon -其选项包括 className .您可以使用此className选项通过CSS为标记的图标设置动画.

When you add a Marker you are able to specify an Icon - the options for which include a className. You can use this className option to animate the marker's icon via CSS.

var map = L.map('map').setView([51.505, -0.09], 13);

L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
  attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors',
  maxZoom: 18
}).addTo(map);

L.marker([51.5, -0.09], {
  icon: L.icon({
    iconUrl: 'https://unpkg.com/leaflet@1.0.3/dist/images/marker-icon.png',
    className: 'blinking'
  })
}).addTo(map);

#map {
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

@keyframes fade { 
  from { opacity: 0.5; } 
}

.blinking {
  animation: fade 1s infinite alternate;
}

<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>
<div id="map"></div>

要将标记从闪烁切换为不闪烁，可以使用Leaflet的DomUtil将blinking类添加到标记的img元素:

To toggle a marker from blinking to non-blinking, you can use Leaflet's DomUtil to add the blinking class to the marker's img element:

// With the class added, the marker will blink:
L.DomUtil.addClass(marker._icon, "blinking");

// Without the class, it won't:
L.DomUtil.removeClass(marker._icon, "blinking"); 

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