百度地图点标记加调用

先看效果
在这里插入图片描述

PHP代码

<?phpnamespace kds_addons\edata\controller;use think\addons\Controller;
use think\Db;class Maps extends Controller
{// 经纬度计算面积function calculate_area($points){$totalArea = 0;$numPoints = count($points);if ($numPoints > 2) {for ($i = 0; $i < $numPoints; $i++) {$j = ($i + 1) % $numPoints;$x1 = $points[$i]["lng"];$y1 = $points[$i]["lat"];$x2 = $points[$j]["lng"];$y2 = $points[$j]["lat"];$totalArea += deg2rad($x2 - $x1) * (2 + sin(deg2rad($y1)) + sin(deg2rad($y2)));}$totalArea *= 6378137 * 6378137 / 2;}return abs($totalArea);}// 地图设置public function set_pi(){$times = time();$id = intval(input("id"));$this->assign("id", $id);if (request()->isPost()) {$l2_json = trim(input("l2_json"));// dump($l2_json);$l2_json = htmlspecialchars_decode($l2_json);// $l2_json = stripslashes($l2_json);$l2_arr = json_decode($l2_json, true);// dump($l2_arr);Db::name("land_l2")->where("land_id", $id)->delete(); //删除数据$datas_ia = [];foreach ($l2_arr as $key => &$value) {// dump($value);$value["land_id"] = $id;$value["create_time"] = $times;ksort($value); //数组按键名排序$datas_ia[] = $value;}$datas_ia = array_values($datas_ia); //只保留数组中的valueDb::name("land_l2")->insertAll($datas_ia); //插入多条数据// 计算中心// 经度$lng_sum = Db::name("land_l2")->where("land_id", $id)->sum("lng");$lng_nu = Db::name("land_l2")->where("land_id", $id)->count("lng");$datas["lng"] = $lng_sum / $lng_nu;// 纬度$lat_sum = Db::name("land_l2")->where("land_id", $id)->sum("lat");$lat_nu = Db::name("land_l2")->where("land_id", $id)->count("lat");$datas["lat"] = $lat_sum / $lat_nu;// 计算面积$lists_l2 = Db::name("land_l2")->field(["lng", "lat"])->where("land_id", $id)->select();$area = $this->calculate_area($lists_l2);$datas["area_m2"] = $area;$datas["area_gq2"] = $area / 10000; //平方米转换为平方公顷$datas["not_gp2"] = $area / 10000; //平方米转换为平方公顷// 更新数据Db::name("land")->where("id", $id)->update($datas);$res = [];$res["code"] = 0;return json($res);}// 获取所有标记点$lists = Db::name("land_l2")->field(["lng", "lat"])->where("land_id", $id)->order("id asc")->select();$this->assign("lists", $lists);// 获取中心坐标$first = reset($lists);$this->assign("lng", $first["lng"]);$this->assign("lat", $first["lat"]);return $this->fetch();// return $this->fetch(request()->action() . "_qq");}// 地图查看public function se_pi(){$id = intval(input("id"));$this->assign("id", $id);// 获取所有标记点$lists = Db::name("land_l2")->field(["lng", "lat"])->where("land_id", $id)->order("id asc")->select();$this->assign("lists", $lists);// 获取中心坐标$first = reset($lists);$this->assign("lng", $first["lng"]);$this->assign("lat", $first["lat"]);return $this->fetch();// return $this->fetch(request()->action() . "_qq");}
}

选点

<html><head><meta charset="utf-8"><title></title><meta name="renderer"content="webkit"><meta http-equiv="X-UA-Compatible"content="IE=edge,chrome=1"><meta name="viewport"content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0"><link rel="stylesheet"href="/yunqikds_static/iconfont/iconfont.css"><script src="/yunqikds_static/iconfont/iconfont.js"></script><link rel="stylesheet"href="/yunqikds_static/layuiadmin/layui/css/layui.css"media="all"><script src="/yunqikds_static/layuiadmin/layui/layui.js"></script><script src="/yunqikds_static/js/jquery-1.10.2.min.js"></script></head><body><div id="container"></div><ul class="drawing-panel"><li class="btn"onclick="map_tog()">切换</li><li class="btn"onclick="map_save()">保存</li></ul><script src="https://api.map.baidu.com/api?v=1.0&&type=webgl&ak=xxx"></script><script type="text/javascript"src="https://api.map.baidu.com/library/GeoUtils/1.2/src/GeoUtils_min.js"></script><script type="text/javascript">$(function () {layui.use(["layer",], function () {layer = layui.layer;});});var is_add = true; //解决单击添加和删除冲突的问题var map = new BMapGL.Map("container", {mapType: BMAP_SATELLITE_MAP, //卫星底图// mapType: BMAP_NORMAL_MAP, //矢量底图});`{if $lng&&$lat}`;var c_pi = new BMapGL.Point(parseFloat(`{$lng}`), parseFloat(`{$lat}`));`{else}`;var c_pi = "乐都区";`{/if}`;map.centerAndZoom(c_pi, 16);map.enableScrollWheelZoom(true);map.disableDoubleClickZoom(); //设置是否可以双击放大// 添加标记点function p_add(lat, lng, i = null) {lat = parseFloat(lat);lng = parseFloat(lng);var pis = new BMapGL.Point(lng, lat);var marker = new BMapGL.Marker(pis, {enableDragging: true,});if (i) {// console.log(i);var opts = {position: pis, // 指定文本标注所在的地理位置offset: new BMapGL.Size(0, 0) // 设置文本偏移量};var label = new BMapGL.Label(i, opts);// 自定义文本标注样式label.setStyle({color: "glay",borderRadius: "5px",borderColor: "red",padding: "5px",fontSize: "16px",height: "20px",lineHeight: "20px",fontFamily: "微软雅黑"});map.addOverlay(label);}marker.addEventListener("click", function (e) {// console.log(e);map.removeOverlay(marker); //删除标记map.removeOverlay(label); //删除标签is_add = false;setTimeout(function () {is_add = true;}, 1);});map.addOverlay(marker);}`{volist name="lists" id="vo"}`;p_add(`{$vo.lat}`, `{$vo.lng}`, `{$i}`);`{/volist}`;// 监听点击事件添加markermap.addEventListener("click", function (e) {// console.log(e);if (is_add) {p_add(e.latlng.lat, e.latlng.lng);}});// 切换地图类型function map_tog() {if (map.getMapType() != BMAP_SATELLITE_MAP) {map.setMapType(BMAP_SATELLITE_MAP); //卫星底图} else {map.setMapType(BMAP_NORMAL_MAP); //矢量底图}}// 保存标记标记点function map_save() {var l2_marker = [];// 获取经纬度var arr_marker = map.getOverlays();// console.log(arr_marker);$.each(arr_marker, function (key, vo) {// console.log(vo);l2_marker.push({lat: vo.latLng.lat,lng: vo.latLng.lng,});});// console.log(l2_marker);l2_marker = JSON.stringify(l2_marker);$.post("", {id: "{$id}",l2_json: l2_marker,}, function (params) {if (params.code == 0) {layer.msg("标记成功");} else {layer.msg("标记失败");}}, "json");}</script>
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效果查看

<html><head><meta charset="utf-8"><title></title><meta name="renderer"content="webkit"><meta http-equiv="X-UA-Compatible"content="IE=edge,chrome=1"><meta name="viewport"content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0"><link rel="stylesheet"href="/yunqikds_static/iconfont/iconfont.css"><script src="/yunqikds_static/iconfont/iconfont.js"></script><link rel="stylesheet"href="/yunqikds_static/layuiadmin/layui/css/layui.css"media="all"><script src="/yunqikds_static/layuiadmin/layui/layui.js"></script><script src="/yunqikds_static/js/jquery-1.10.2.min.js"></script></head><body><div id="container"></div><ul class="drawing-panel"><li class="btn"onclick="map_tog()">切换</li></ul><script src="https://api.map.baidu.com/api?v=1.0&&type=webgl&ak=xxx"></script><script type="text/javascript"src="https://api.map.baidu.com/library/GeoUtils/1.2/src/GeoUtils_min.js"></script><script type="text/javascript">$(function () {layui.use(["layer",], function () {layer = layui.layer;});});var map = new BMapGL.Map("container", {mapType: BMAP_SATELLITE_MAP, //卫星底图// mapType: BMAP_NORMAL_MAP, //矢量底图});`{if $lng&&$lat}`;var c_pi = new BMapGL.Point(parseFloat(`{$lng}`), parseFloat(`{$lat}`));`{else}`;var c_pi = "乐都区";`{/if}`;map.centerAndZoom(c_pi, 16);map.enableScrollWheelZoom(true);map.disableDoubleClickZoom(); //设置是否可以双击放大var polygon_path = [];`{volist name="lists" id="vo"}`;polygon_path.push(new BMapGL.Point(parseFloat(`{$vo.lng}`), parseFloat(`{$vo.lat}`)));`{/volist}`;// console.log(polygon_path);// 绘制面var polygon1 = new BMapGL.Polygon(polygon_path, {strokeColor: "#295BFF",strokeWeight: 3,strokeOpacity: 0.5,fillOpacity: 0,});map.addOverlay(polygon1);// 切换地图类型function map_tog() {if (map.getMapType() != BMAP_SATELLITE_MAP) {map.setMapType(BMAP_SATELLITE_MAP); //卫星底图} else {map.setMapType(BMAP_NORMAL_MAP); //矢量底图}}</script>
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