maptalks - UIMarker 对齐

UIMarker 对齐

index.html

<!DOCTYPE html>
<html>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>空间与UI组件 - UIMarker 对齐</title>
  <style type="text/css">
    html,body{margin:0px;height:100%;width:100%}
    .container{width:100%;height:100%}
    .panel{border-radius:5px;padding:10px;position:absolute;z-index:1;right:10px;top:10px;border:1px solid gray;background-color:white}
    .panel .item{line-height:40px}
    .text_marker{font:15px bold sans-serif;color:#0000;text-shadow:2px 0 white;background-color:#2695bbb3;border:2px solid #43fff3;width:120px;height:40px;text-align:center}
  </style>
  <link rel="stylesheet" href="https://unpkg.com/maptalks/dist/maptalks.css">
  <script type="text/javascript" src="https://unpkg.com/maptalks/dist/maptalks.min.js"></script>
  <body>
    <div class="panel">

        <div class="item">
            <label>horizontalAlignment</label>

            <select name="horizontalAlignment" id="horizontalAlignment" value="middle">
                <option value="middle">middle</option>
                <option value="left">left</option>
                <option value="right">right</option>
            </select>
        </div>
        <div class="item">
            <label>verticalAlignment</label>

            <select name="verticalAlignment" id="verticalAlignment" value="middle">
                <option value="middle">middle</option>
                <option value="top">top</option>
                <option value="bottom">bottom</option>
            </select>
        </div>

    </div>
    <div id="map" class="container"></div>
    <script>

      var baseLayer = new maptalks.TileLayer('base', {
        urlTemplate: 'https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
        subdomains: ['a','b','c','d'],
        attribution: '&copy; <a href="http://osm.org">OpenStreetMap</a> contributors, &copy; <a href="https://carto.com/">CARTO</a>'
      });
      var map = new maptalks.Map('map', {
        center: [114.26012989831725, 30.616193225646924],
        zoom: 18,
        pitch: 60,
        attribution: true,
        zoomControl: true,
        baseLayer: baseLayer
      });
      map.on('click', function (e) {
        console.log(e);
      });


      var center = map.getCenter();

      var layer = new maptalks.VectorLayer('layer', {
        enableAltitude: true
      }).addTo(map);
      var point = new maptalks.Marker(center, {
        symbol: {
          markerType: 'ellipse',
          markerWidth: 5,
          markerHeight: 5
        }
      });
      layer.addGeometry(point);

      var uiMarker = new maptalks.ui.UIMarker(center, {
        content: '<div class="text_marker">maptalks</div>'
      });
      uiMarker.addTo(map);

      function getEle(selector) {
        if (document.querySelector) {
          return document.querySelector(selector);
        }
        return document.getElementById(selector.substring(1, Infinity));
      }
      function on(ele, type, hanlder) {
        ele.addEventListener(type, hanlder);
      }

      on(getEle('#horizontalAlignment'), 'change', function (e) {
        uiMarker.options.horizontalAlignment = this.value;
      });

      on(getEle('#verticalAlignment'), 'change', function (e) {
        uiMarker.options.verticalAlignment = this.value;
      });


    </script>
  </body>
</html>

var center = map.getCenter();

var uiMarker = new maptalks.ui.UIMarker(center, {
  content: '<div class="text_marker">maptalks</div>'
});
uiMarker.addTo(map);

function getEle(selector) {
  if (document.querySelector) {
    return document.querySelector(selector);
  }
  return document.getElementById(selector.substring(1, Infinity));
}

function on(ele, type, hanlder) {
  ele.addEventListener(type, hanlder);
}

on(getEle('#horizontalAlignment'), 'change', function(e) {
  uiMarker.options.horizontalAlignment = this.value;
});

on(getEle('#verticalAlignment'), 'change', function(e) {
  uiMarker.options.verticalAlignment = this.value;
});