OpenLayers3-4-Attributions
原文地址：http://openlayers.org/en/v3.12.1/examples/attributions.html
When the map gets too small because of a resize, the attribution will be collapsed. This is because the collapsible option is set to true if the width of the map gets smaller than 600 pixels.
Related API documentation:
ol.Map,ol.View,ol.control,ol.control.Attribution,ol.layer.Tile,ol.source.OSM
翻译：
当地图因为缩放变的太小的时候，地图的属性会崩溃。这个是因为允许奔溃选项被设置成真，如果地图的宽度小于600像素。
相关的api文档包括：
ol.Map,ol.View,ol.control,ol.control.Attribution,ol.layer.Tile,ol.source.OSM
<!DOCTYPE html>
<html>
<head>
<title>Attributions</title>
<link rel="stylesheet" href="http://openlayers.org/en/v3.12.1/css/ol.css" type="text/css">
<script src="http://openlayers.org/en/v3.12.1/build/ol.js"></script>
</head>
<body>
<div id="map" class="map"></div>
<script>
var attribution = new ol.control.Attribution({
collapsible: false
});
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
controls: ol.control.defaults({ attribution: false }).extend([attribution]),
target: 'map',
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
function checkSize() {
var small = map.getSize()[0] < 600;
attribution.setCollapsible(small);
attribution.setCollapsed(small);
}
window.addEventListener('resize', checkSize);
checkSize();
</script>
</body>
</html>转载自：https://blog.csdn.net/isowang/article/details/50526851
