openlayers学习——4、openlayers弹出框popup弹出层Overlay
作者:互联网
openlayers弹出框popup弹出层Overlay
前言:基于Vue,学习openlayers,根据官网demo,记录常用功能写法。
本人不是专业GIS开发,只是记录,方便后续查找。
参考资料:
openlayers官网:https://openlayers.org/
geojson下载网站:https://datav.aliyun.com/portal/school/atlas/area_selector
地图坐标拾取网站:https://api.map.baidu.com/lbsapi/getpoint/index.html
openlayers核心:Map对象、View视图、Layer图层、Source来源、Feature特征等
在地图DOM同级别设置弹出框DOM
<!-- 这里随意设置,没有什么规则,就像普通盒子模型一样,主要是css设置 -->
<div id="popup" class="ol-popup">
<a href="#" id="popup-closer" class="ol-popup-closer" @click="removePopup" />
<div id="popup-content" />
</div>
// 核心就是绝对定位
.ol-popup {
position: absolute;
background-color: white;
box-shadow: 0 1px 4px rgba(0,0,0,0.2);
padding: 15px;
border-radius: 10px;
border: 1px solid #cccccc;
bottom: 12px;
left: -50px;
min-width: 280px;
}
.ol-popup:after, .ol-popup:before {
top: 100%;
border: solid transparent;
content: " ";
height: 0;
width: 0;
position: absolute;
pointer-events: none;
}
.ol-popup:after {
border-top-color: white;
border-width: 10px;
left: 48px;
margin-left: -10px;
}
.ol-popup:before {
border-top-color: #cccccc;
border-width: 11px;
left: 48px;
margin-left: -11px;
}
.ol-popup-closer {
text-decoration: none;
position: absolute;
top: 2px;
right: 8px;
}
.ol-popup-closer:after {
content: "✖";
}
import Overlay from 'ol/Overlay'
// 核心思想:创建弹出层对象、绑定DOM、编辑弹出层内容、添加到map中、设置位置
// 弹出框
addPopup (ctn = [118.339408, 32.261271]) {
this.removePopup()
// 获取弹出层DOM
const container = document.getElementById('popup')
const content = document.getElementById('popup-content')
if (this.overlay) {
} else {
// 创建Overlay弹出层绑定DOM
this.overlay = new Overlay({
element: container,
autoPan: {
animation: {
duration: 250
}
}
})
// 添加到map
this.map.addOverlay(this.overlay)
}
// 弹出层内容
content.innerHTML = `
<b style='color: blue'>弹出层信息</b>
<br/>
<table>
<tr>
<th>信息1:</th>
<td>XXXXXXXXX</td>
</tr>
<tr>
<th>信息2:</th>
<td>XXXXXXXXX</td>
</tr>
</table>
`
// 设置弹出层位置即可出现
this.overlay.setPosition(ctn)
},
// 清除弹出框
removePopup () {
if (this.overlay) {
// 设置位置undefined可达到隐藏清除弹出框
this.overlay.setPosition(undefined)
}
}
最后效果
标签:popup,Overlay,弹出,openlayers,ol,border 来源: https://blog.csdn.net/weixin_43390116/article/details/122350894