jqueryui+leaflet实现可拖动图片标注位置效果代码-html代码-BFW代码库

jqueryui+leaflet实现可拖动图片标注位置效果代码

代码语言：html

所属分类：拖放

代码描述：jqueryui+leaflet实现可拖动图片标注位置效果代码，拖动后可生成标注位置json数据，还可以导入标注位置数据。

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">


    <link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/leaflet.1.3.1.css">
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/leaflet.1.3.1.js"></script>

    <link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/jquery-ui-1.11.0.min.css">

    <style>
        #sidebar {
          width: 20%;
          float: left;
        }
        #main {
          width: 80%;
          float: left;
        }
        #map {
          width: 100%;
          height: 600px;
        }
        .drag {
          cursor: pointer;
        }
        #data {
          width: 90%;
          height: 200px;
        }
    </style>




</head>

<body>
    <div id="sidebar">
        <p>Drag items into the map</p>
        <ul>
            <li><span class="drag">Item 1</span></li>
            <li><span class="drag">Item 2</span></li>
            <li><span class="drag">Item 3</span></li>
            <li><span class="drag">Item 4</span></li>
            <li><span class="drag">Item 5</span></li>
        </ul>
        <p><button type="button" class="import">Import</button></p>
        <p><button type="button" class="export">Export</button></p>
        <textarea id="data"></textarea>
    </div>
    <div id="main">
        <div id="map"></div>
    </div>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-1.8.3.js"></script>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-ui-1.11.0.min.js"></script>

    <script>
        var imageUrl = '//repo.bfw.wiki/bfwrepo/image/5e44fafbdc615.png';
    var imageWidth = 654;
    var imageHeight = 435;
    
    var map = setupMap();
    var markers = setupImport(map);
    var polylineLatlngs = [];
    var activeItemName = "";
    var hasActiveLine = false;
    setupItems(map, markers);
    setupExport(markers);
    
    map.on('click', function(e) {
      if (hasActiveLine) {
        polylineLatlngs.push(e.latlng);
        L.polyline(polylineLatlngs, {
          color: 'red'
        }).addTo(map);
      }
    });
    
    function setupMap() {
      var map = L.map('map', {
        minZoom: 1,
        maxZoom: 5,
        center: [0, 0],
        zoom: 5,
        crs: L.CRS.Simple
      });
      var southWest = map.unproject([0, imageHeight]);
      var northEast = map.unproject([imageWidth, 0]);
      var bounds = new L.LatLngBounds(southWest, northEast);
      L.imageOverlay(imageUrl, bounds).addTo(map);
      map.setMaxBounds(bounds);
    
      return map;
    }
    
    function addItem(map, markers, item) {
      if (!item.markerCnt || item.markerCnt <= 2) {
        var options = {
   .........完整代码请登录后点击上方下载按钮下载查看