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+<!DOCTYPE html>
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+<html>
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+ <head>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
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+ <title>地块地图</title>
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+ <link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/leaflet/1.9.4/leaflet.css">
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+ <link rel="stylesheet" href="https://unpkg.com/@geoman-io/leaflet-geoman-free@latest/dist/leaflet-geoman.css">
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+ <script src="https://cdn.bootcdn.net/ajax/libs/leaflet/1.9.4/leaflet.js"></script>
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+ <script src="https://unpkg.com/@geoman-io/leaflet-geoman-free@latest/dist/leaflet-geoman.min.js"></script>
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+ <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
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+ <script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
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+ <style>
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+ html,
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+ body,
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+ #map,
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+ .map_box {
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+ width: 100%;
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+ height: 100%;
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+ margin: 0;
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+ padding: 0;
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+ }
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+
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+ .btn-group {
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+ position: fixed;
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+ top: 10px;
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+ left: 10px;
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+ z-index: 999999;
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+ display: flex;
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+ flex-direction: column;
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+ gap: 6px;
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+ }
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+
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+ .btn-group button {
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+ padding: 8px 12px;
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+ background: #007aff;
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+ color: #fff;
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+ border: none;
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+ border-radius: 6px;
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+ font-size: 14px;
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+ white-space: nowrap;
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+ cursor: pointer;
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+ }
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+
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+ #clearDraw {
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+ background: #ff3b30;
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+ }
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+
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+ #uploadLand {
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+ background: #28a745;
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+ display: none;
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+ }
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+
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+ #areaInfo {
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+ background: #fff;
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+ padding: 6px 10px;
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+ border-radius: 6px;
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+ font-size: 13px;
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+ color: #333;
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+ font-weight: bold;
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+ box-shadow: 0 1px 3px #00000033;
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+ }
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+
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+ .draw-area-label {
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+ background: #007aff;
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+ color: #fff;
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+ font-weight: bold;
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+ padding: 5px 10px;
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+ border-radius: 6px;
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+ font-size: 14px;
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+ white-space: nowrap;
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+ box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
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+ pointer-events: none;
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+ }
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+
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+ .land-label {
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+ background: #ffffff;
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+ padding: 4px 8px;
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+ border-radius: 6px;
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+ font-size: 12px;
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+ color: #d32f2f;
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+ text-align: center;
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+ white-space: nowrap;
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+ box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
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+ pointer-events: none !important;
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+ font-weight: bold;
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+ border: 1px solid #eee;
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+ line-height: 1.4;
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+ display: inline-block;
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+ }
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+
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+ /* 加载动画样式 */
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+ .loading-overlay {
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+ position: fixed;
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+ top: 0;
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+ left: 0;
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+ width: 100%;
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+ height: 100%;
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+ background-color: rgba(255, 255, 255, 0.9);
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+ display: flex;
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+ align-items: center;
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+ justify-content: center;
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+ z-index: 9999999;
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+ flex-direction: column;
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+ gap: 15px;
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+ }
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+
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+ .loading-spinner {
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+ width: 40px;
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+ height: 40px;
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+ border: 4px solid #e0e0e0;
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+ border-top: 4px solid #007aff;
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+ border-radius: 50%;
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+ animation: spin 1s linear infinite;
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+ }
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+
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+ .loading-text {
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+ font-size: 15px;
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+ color: #333;
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+ }
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+
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+ @keyframes spin {
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+ 0% {
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+ transform: rotate(0deg);
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+ }
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+
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+ 100% {
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+ transform: rotate(360deg);
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+ }
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+ }
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+ </style>
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+ </head>
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+ <body>
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+ <!-- 加载动画 -->
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+ <div class="loading-overlay" id="loadingOverlay">
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+ <div class="loading-spinner"></div>
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+ <div class="loading-text">正在加载地块数据...</div>
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+ </div>
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+
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+ <div class="map_box">
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+ <div id="map"></div>
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+ <div class="btn-group">
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+ <!-- <button id="sendToMini">选中地块并回传</button> -->
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+ <button id="startDraw">开启打点绘图</button>
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+ <button id="clearDraw">清除绘图</button>
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+ <button id="uploadLand">✅ 上传当前绘制地块</button>
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+ <div id="areaInfo">绘图面积：0 亩 / 0 ㎡</div>
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+ </div>
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+ </div>
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+
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+ <script>
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+ window.onload = function() {
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+ // 工具函数：获取URL参数
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+ function getUrlParams() {
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+ var params = {};
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+ var url = window.location.href;
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+ var queryStr = url.split('?')[1];
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+ if (!queryStr) return params;
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+ var queryArr = queryStr.split('&');
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+ for (var i = 0; i < queryArr.length; i++) {
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+ var item = queryArr[i];
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+ if (!item) continue;
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+ var eqIndex = item.indexOf('=');
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+ var key = eqIndex > -1 ? item.substring(0, eqIndex) : item;
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+ var val = eqIndex > -1 ? decodeURIComponent(item.substring(eqIndex + 1)) : '';
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+ params[key] = val;
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+ }
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+ return params;
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+ }
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+
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+ const params = getUrlParams();
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+
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+ // 🔥 接收参数
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+ const cbfbm = params.data || '';
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+ const pageType = params.type || '';
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+ const dsType = params.displayType || '';
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+
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+ const TIANDITU_TK = '0f31ca9a7e9a0b80f5e5d53df0a02925';
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+
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+ // 初始化地图（先不设置中心点，加载数据后自动定位）
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+ var map = L.map('map', {
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+ zoomControl: true,
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+ maxZoom: 28,
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+ minZoom: 1,
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+ zoomSnap: 0.5,
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+ zoomDelta: 0.5
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+ }).setView([30, 114], 5); // 初始小视野，加载后自动调整
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+
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+ // 天地图底图
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+ L.tileLayer(
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+ `https://t0.tianditu.gov.cn/img_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=img&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILEMATRIX={z}&TILEROW={y}&TILECOL={x}&tk=${TIANDITU_TK}`, {
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+ maxNativeZoom: 18,
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+ maxZoom: 28,
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+ minZoom: 1
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+ }).addTo(map);
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+ L.tileLayer(
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+ `https://t0.tianditu.gov.cn/cia_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=cia&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILEMATRIX={z}&TILEROW={y}&TILECOL={x}&tk=${TIANDITU_TK}`, {
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+ maxNativeZoom: 18,
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+ maxZoom: 28,
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+ minZoom: 1
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+ }).addTo(map);
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+
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+ // 初始化绘图工具
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+ map.pm.setLang('zh');
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+ // 类型为 farmer 时隐藏绘图功能
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+ if (pageType === 'farmer') {
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+ $('#startDraw').hide();
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+ $('#clearDraw').hide();
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+ $('#areaInfo').hide();
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+ }
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+ var landLayerGroup = L.layerGroup().addTo(map);
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+ var currentSelectedPolygon = null;
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+ const SHOW_LABEL_MIN_ZOOM = 18;
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+ let allLandItems = [];
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+
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+ let drawnPolygon = null;
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+ let areaLabelMarker = null;
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+
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+ // 点击边线添加顶点
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+ function enableClickAddVertex(layer) {
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+ layer.off('click');
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+ layer.on('click', function(e) {
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+ if (!layer.pm.enabled()) return;
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+ const latlng = e.latlng;
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+ const latlngs = layer.getLatLngs()[0];
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+ let closestIndex = -1;
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+ let minDist = Infinity;
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+
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+ for (let i = 0; i < latlngs.length - 1; i++) {
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+ const p1 = latlngs[i];
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+ const p2 = latlngs[i + 1];
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+ const dist = L.LineUtil.pointToSegmentDistance(
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+ map.latLngToContainerPoint(latlng),
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+ map.latLngToContainerPoint(p1),
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+ map.latLngToContainerPoint(p2)
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+ );
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+ if (dist < minDist) {
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+ minDist = dist;
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+ closestIndex = i + 1;
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+ }
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+ }
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+
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+ if (closestIndex !== -1) {
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+ latlngs.splice(closestIndex, 0, latlng);
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+ layer.setLatLngs(latlngs);
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+ layer.fire('pm:edit');
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+ }
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+ });
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+ }
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+
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+ // 计算面积（亩 + 平方米）
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+ function calcAreaMu(latLngs) {
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+ if (!latLngs || latLngs.length < 3) return { mu: 0, m2: 0 };
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+ let m2 = 0;
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+ if (L.PM && L.PM.Utils && L.PM.Utils.calculatePolygonArea) {
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+ m2 = L.PM.Utils.calculatePolygonArea(latLngs);
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+ } else {
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+ const R = 6378137;
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+ const rad = Math.PI / 180;
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+ for (let i = 0; i < latLngs.length; i++) {
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+ const p1 = latLngs[i];
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+ const p2 = latLngs[(i + 1) % latLngs.length];
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+ m2 += (p2.lng - p1.lng) * rad * (2 + Math.sin(p1.lat * rad) + Math.sin(p2.lat * rad));
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+ }
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+ m2 = Math.abs(m2 * R * R / 2);
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+ }
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+ const mu = (m2 / 666.67).toFixed(2);
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+ return {
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+ mu: mu,
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+ m2: m2.toFixed(2)
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+ };
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+ }
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+
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+ // 打印地块信息
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+ function printPolygonInfo(layer) {
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+ if (!layer) return;
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+ const latlngs = layer.getLatLngs()[0];
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+ const { mu, m2 } = calcAreaMu(latlngs);
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+ console.log('====================================');
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+ console.log('✅ 地块点位：');
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+ latlngs.forEach((p, i) => console.log(`第${i+1}点：${p.lat.toFixed(8)}, ${p.lng.toFixed(8)}`));
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+ console.log(`✅ 面积：${mu} 亩 / ${m2} 平方米`);
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+ console.log('====================================');
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+ }
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+
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+ // 更新面积标签
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+ function updateAreaLabel() {
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+ if (!drawnPolygon) return;
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+ let latLngs = drawnPolygon.getLatLngs()[0];
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+ const { mu, m2 } = calcAreaMu(latLngs);
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+ $('#areaInfo').text(`绘图面积：${mu} 亩 / ${m2} ㎡`);
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+ let center = drawnPolygon.getCenter();
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+ if (areaLabelMarker) map.removeLayer(areaLabelMarker);
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+ areaLabelMarker = L.marker(center, {
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+ icon: L.divIcon({
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+ className: 'draw-area-label',
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+ html: `${mu} 亩 / ${m2} ㎡`,
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+ iconSize: null,
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+ iconAnchor: [50, 50]
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+ })
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+ }).addTo(map);
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+ }
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+
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+ // 上传绘制地块
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+ function uploadDrawLand() {
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+ if (!drawnPolygon) {
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+ alert("请先绘制地块！");
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+ return;
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+ }
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+
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+ const latlngs = drawnPolygon.getLatLngs()[0];
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+ const { mu, m2 } = calcAreaMu(latlngs);
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+ const points = latlngs.map(p => [p.lng, p.lat]);
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+
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+ const confirmUpload = confirm(`确认上传当前地块？\n\n面积：${mu} 亩 / ${m2} ㎡\n\n确认后将自动返回小程序`);
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+ if (!confirmUpload) {
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+ console.log("用户取消上传");
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+ return;
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+ }
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+
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+ const postData = {
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+ type: "drawLandFinished",
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+ points: points,
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+ areaMu: mu,
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+ areaM2: m2
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+ };
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+
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+ console.log("H5 发送给小程序：", postData);
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+ wx.miniProgram.postMessage({
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+ data: postData
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+ });
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+ wx.miniProgram.navigateBack();
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+ }
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+
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+ // 按钮事件：开启/关闭绘图
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+ $('#startDraw').click(function() {
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+ if (map.pm.Draw.Polygon._enabled) {
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+ map.pm.Draw.Polygon.disable();
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+ $(this).text('开启打点绘图').css('background', '#007aff');
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+ return;
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+ }
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+ $(this).text('关闭打点绘图').css('background', '#ff3b30');
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+ $('#uploadLand').hide();
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+ map.pm.Draw.Polygon.enable({
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+ allowSelfIntersection: false,
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+ markerStyle: {
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+ radius: 5
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+ }
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+ });
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+ });
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+
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+ // 清除绘图
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+ $('#clearDraw').click(function() {
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+ if (drawnPolygon) {
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+ map.removeLayer(drawnPolygon);
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+ drawnPolygon = null;
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+ }
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+ if (areaLabelMarker) {
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+ map.removeLayer(areaLabelMarker);
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+ areaLabelMarker = null;
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+ }
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+ $('#areaInfo').text('绘图面积：0 亩 / 0 ㎡');
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+ $('#startDraw').text('开启打点绘图').css('background', '#007aff');
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+ $('#uploadLand').hide();
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+ });
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+
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+ $('#uploadLand').click(uploadDrawLand);
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+
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+ // 绘图完成事件
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+ map.on('pm:create', function(e) {
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+ let layer = e.layer;
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+ if (drawnPolygon) map.removeLayer(drawnPolygon);
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+ drawnPolygon = layer;
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+
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+ layer.pm.enable({
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+ allowAddVertex: true,
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+ allowDeleteVertex: true,
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+ markerEditable: true,
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+ hideMiddleMarkers: false
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+ });
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+
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+ enableClickAddVertex(layer);
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+ map.pm.Draw.Polygon.disable();
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+ $('#startDraw').text('开启打点绘图').css('background', '#007aff');
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+ $('#uploadLand').show();
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+
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+ updateAreaLabel();
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+ printPolygonInfo(layer);
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+
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+ layer.on('pm:edit pm:vertexadded pm:vertexremoved', function() {
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+ updateAreaLabel();
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+ printPolygonInfo(layer);
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+ });
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+ });
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+
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+ // 获取多边形中心点
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+ function getPolygonCenter(points) {
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|
+ let latSum = 0,
|
|
|
+ lngSum = 0,
|
|
|
+ len = points.length;
|
|
|
+ points.forEach(p => {
|
|
|
+ latSum += p[1];
|
|
|
+ lngSum += p[0];
|
|
|
+ });
|
|
|
+ return [latSum / len, lngSum / len];
|
|
|
+ }
|
|
|
+
|
|
|
+ // 自适应缩放到所有地块
|
|
|
+ function fitMapToAllLands(allLandPoints) {
|
|
|
+ if (!allLandPoints.length) return;
|
|
|
+ let bounds = [];
|
|
|
+ allLandPoints.forEach(points => {
|
|
|
+ points.forEach(p => bounds.push([p[1], p[0]]));
|
|
|
+ });
|
|
|
+ map.fitBounds(L.latLngBounds(bounds), {
|
|
|
+ padding: [30, 30]
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ // 更新标签显示
|
|
|
+ function updateVisibleLabels() {
|
|
|
+ const currentZoom = map.getZoom();
|
|
|
+ const bounds = map.getBounds();
|
|
|
+ allLandItems.forEach(item => {
|
|
|
+ const {
|
|
|
+ label,
|
|
|
+ center
|
|
|
+ } = item;
|
|
|
+ if (currentZoom < SHOW_LABEL_MIN_ZOOM || !bounds.contains(center)) {
|
|
|
+ if (landLayerGroup.hasLayer(label)) landLayerGroup.removeLayer(label);
|
|
|
+ } else {
|
|
|
+ if (!landLayerGroup.hasLayer(label)) landLayerGroup.addLayer(label);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ // 加载地块数据
|
|
|
+ function loadLandData() {
|
|
|
+ console.log(123,dsType)
|
|
|
+ let ctData = {}
|
|
|
+ if(dsType === 'all'){
|
|
|
+ ctData = {
|
|
|
+ cbfbms: cbfbm,
|
|
|
+ }
|
|
|
+ }else if(dsType === 'single'){
|
|
|
+ ctData = {
|
|
|
+ dkbms: cbfbm,
|
|
|
+ }
|
|
|
+ }
|
|
|
+ $.ajax({
|
|
|
+ url: "http://192.168.110.235:1860/miniProgram/dk/arcgisGeojson",
|
|
|
+ type: "GET",
|
|
|
+ data: ctData, //
|
|
|
+ dataType: "json",
|
|
|
+ success: function(res) {
|
|
|
+ // 加载完成 → 隐藏加载动画
|
|
|
+ $('#loadingOverlay').hide();
|
|
|
+
|
|
|
+ landLayerGroup.clearLayers();
|
|
|
+ allLandItems = [];
|
|
|
+ let allLandPoints = [];
|
|
|
+
|
|
|
+ if (res.code === 200 && res.data?.features?.length) {
|
|
|
+ res.data.features.forEach(feature => {
|
|
|
+ let rings = feature.geometry?.rings?.[0];
|
|
|
+ if (!rings) return;
|
|
|
+
|
|
|
+ let points = rings.map(p => [p[1], p[0]]);
|
|
|
+ allLandPoints.push(rings);
|
|
|
+ let center = getPolygonCenter(rings);
|
|
|
+ let attr = feature.attributes;
|
|
|
+
|
|
|
+ let polygon = L.polygon(points, {
|
|
|
+ color: '#ffaa00',
|
|
|
+ weight: 2,
|
|
|
+ fillColor: '#ffaa00',
|
|
|
+ fillOpacity: 0.3,
|
|
|
+ attributes: attr
|
|
|
+ }).addTo(landLayerGroup);
|
|
|
+
|
|
|
+ let text =
|
|
|
+ `${attr.cbfmc||'地块'} | ${(attr.scmjm||0).toFixed(2)}亩 | ${attr.scmj||0}㎡`;
|
|
|
+ let label = L.marker(center, {
|
|
|
+ icon: L.divIcon({
|
|
|
+ className: 'land-label',
|
|
|
+ html: text,
|
|
|
+ iconSize: null,
|
|
|
+ iconAnchor: [50, 50]
|
|
|
+ })
|
|
|
+ });
|
|
|
+
|
|
|
+ allLandItems.push({
|
|
|
+ label,
|
|
|
+ center,
|
|
|
+ polygon
|
|
|
+ });
|
|
|
+
|
|
|
+ // 点击选中地块
|
|
|
+ polygon.on('click', e => {
|
|
|
+ landLayerGroup.eachLayer(l => {
|
|
|
+ if (l.options?.attributes) l.setStyle({
|
|
|
+ color: '#ffaa00',
|
|
|
+ weight: 2,
|
|
|
+ fillOpacity: 0.3
|
|
|
+ });
|
|
|
+ });
|
|
|
+ e.target.setStyle({
|
|
|
+ color: '#ffff00',
|
|
|
+ weight: 4,
|
|
|
+ fillOpacity: 0.5
|
|
|
+ });
|
|
|
+ currentSelectedPolygon = e.target;
|
|
|
+ });
|
|
|
+ });
|
|
|
+
|
|
|
+ // 自动定位到所有地块中心
|
|
|
+ fitMapToAllLands(allLandPoints);
|
|
|
+ updateVisibleLabels();
|
|
|
+ }
|
|
|
+ },
|
|
|
+ error: () => {
|
|
|
+ $('#loadingOverlay').hide();
|
|
|
+ alert("获取地块失败");
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ // 地图缩放/移动时更新标签
|
|
|
+ map.on('zoomend moveend', updateVisibleLabels);
|
|
|
+
|
|
|
+ // 选中地块回传给小程序
|
|
|
+ $("#sendToMini").click(function() {
|
|
|
+ if (!currentSelectedPolygon) return alert("请先选中地块");
|
|
|
+ let data = {
|
|
|
+ points: currentSelectedPolygon.getLatLngs()[0].map(i => [i.lat, i.lng]),
|
|
|
+ attr: currentSelectedPolygon.options.attributes
|
|
|
+ };
|
|
|
+ console.log("提交数据：", data);
|
|
|
+ wx.miniProgram.postMessage({
|
|
|
+ data: {
|
|
|
+ type: "landSelected",
|
|
|
+ data: data
|
|
|
+ }
|
|
|
+ });
|
|
|
+ alert("已回传给小程序");
|
|
|
+ });
|
|
|
+
|
|
|
+ // 开始加载数据
|
|
|
+ loadLandData();
|
|
|
+ };
|
|
|
+ </script>
|
|
|
+ </body>
|
|
|
+</html>
|
丁烨烨
1 bulan lalu