<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>点聚合</title>
<style>
*{
padding: 0;
margin: 0;
}
/* body,div{
position: absolute;
width: 100%;
height: 100%;
} */
#allMap{
position: absolute;
width: 100%;
height: 100%;
}
/*隐藏地图控件*/
.anchorBL, .BMap_cpyCtrl {
display: none;
}
/*地图聚合样式*/
.bubble p {
text-align: center;
color: #fff;
}
.bubble .name {
margin-top: 25px;
font-size: 14px;
}
/*信息窗口样式*/
.infoArea{
font-size: 12px;
padding: 4px;
/* background-color: #fff; */
border-radius: 2px;
box-shadow: 0 10px 8px 0 rgba(0,0,0,.1);
}
.infoArea:after {
content: '';
position: absolute;
border: 10px solid transparent;
border-top: 10px solid #fff;
bottom: -20px;
left: 50%;
transform: translate(-50%, 0);
}
.infoArea p{
padding: 2px 10px;
}
.infoArea .name {
height: 20px;
line-height: 20px;
font-weight: 800;
}
.bg-info-box{
height: 24px;
line-height: 24px;
cursor: pointer;
text-align: center;
box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.bg-info{
min-width: 40px;
box-sizing: content-box;
transition: background-color .15s ease-in-out;
padding: 0 3px;
display: inline-block;
background-color: #00a75b;
border-radius: 2px;
/* border: 1px solid #00a75b; */
font-style: normal;
}
.bg-info:hover{
background:#e4393c;
}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=3.0&ak="></script>
<script src="http://api.map.baidu.com/library/GeoUtils/1.2/src/GeoUtils.js"></script>
<!-- <script src="http://api.map.baidu.com/library/InfoBox/1.2/src/InfoBox_min.js"></script> -->
<script type="text/javascript" src="js/InfoBox_min.js"></script>
<script type="text/javascript" src="js/sz.js"></script>
<script type="text/javascript" src="js/ns.js"></script>
<script type="text/javascript" src="js/kjy.js"></script>
</head>
<body>
<!--地图-->
<div id="allMap"></div>
<script>
// https://blog.csdn.net/tjj3027/article/details/81015138 百度地图缩放级别对照
let noZoomend = true
let map = new BMap.Map("allMap", {enableMapClick: false, minZoom: 11, maxZoom: 18});
// enableMapClick是否开启底图可点功能，默认启用
map.enableScrollWheelZoom(true);//开启鼠标滚轮缩放功能。仅对PC上有效
map.disableInertialDragging();//禁用地图惯性拖拽
window.labelData=[];//存数点位数据
window.map = initMap(12, true);//初始化地图对象
window.lastInfoBox = null; //定义最近打开的地图信息窗体
window.pointArray = [];//行政区划点位集合
//左上角，添加默认缩放平移控件
var top_left_control = new BMap.ScaleControl({anchor: BMAP_ANCHOR_TOP_LEFT});// 左上角，添加比例尺
map.addControl(top_left_control);
function initMap(jLevel,initPt,lngLat) {
let initPoint = new BMap.Point(113.95565020448,22.552100509472);//科技园中心点
// getBounds() 返回地图可视区域，以地理坐标表示
setTimeout(()=>{
let initBounds = map.getBounds()
// getSouthWest() Point 返回矩形区域的西南角--左下角
// getNorthEast() Point 返回矩形区域的东北角--右上角
// console.log('map.getBounds()',initBounds,initBounds.getSouthWest(),initBounds.getNorthEast())
if(initBounds.getSouthWest().lng) {
/*获取当前地图可视区域内的数据*/
let abc = new BMap.Polygon([
new BMap.Point(initBounds.getSouthWest().lng, initBounds.getSouthWest().lat),
new BMap.Point(initBounds.getSouthWest().lng, initBounds.getNorthEast().lat),
new BMap.Point(initBounds.getNorthEast().lng, initBounds.getNorthEast().lat),
new BMap.Point(initBounds.getNorthEast().lng, initBounds.getSouthWest().lat)
], {strokeColor:"blue", strokeWeight:2, strokeOpacity:0.1}); //建立多边形覆盖物
map.addOverlay(abc);
}
},30)
if(!initPt){
// getCenter() 返回矩形的中心点
let cp = map.getCenter();
initPoint = new BMap.Point(cp.lng, cp.lat);
}
if(initPt && lngLat){
noZoomend = false
initPoint = new BMap.Point(lngLat.lng, lngLat.lat);
}
// console.log('lngLat',lngLat)
map.centerAndZoom(initPoint, jLevel);//初始化
// 点击缩放之后放开缩放事件
noZoomend = true
let resData = {}
if(jLevel <= 12) {
resData = szData
}
if(jLevel > 12 && jLevel < 16) {
resData = nsData
}
if(jLevel >= 16) {
resData = kjyData
}
addMarker(resData)
}
//监听地图级别缩放事件，当级别为11时默认加载集合点，扩大级别时显示详细点位数据
map.addEventListener("zoomend", function () {
if(!noZoomend){
return
}
// zoomend 地图更改缩放级别结束时触发触发此事件
let zoomLevel = map.getZoom(); //获取地图缩放级别
initMap(zoomLevel);
});
//停止拖拽地图时触发
map.addEventListener("dragend", function () {
// let initBounds = map.getBounds()
console.log('dragend')
let zoomLevel = map.getZoom(); //获取地图缩放级别
initMap(zoomLevel);
});
//根据行政区划绘制聚合点位
function addMarker(resData) {
map.clearOverlays();//清除地图上所有覆盖物
labelData = []; //清空点位信息
//模拟数据---这里应该是请求接口后返回的数据
let szDatas = resData.data.list
//为了提高百度地图性能，本篇例子点位全用label来加载点位
for (let index in szDatas) {
(function(i){
let data = szDatas[i]
// Point(lng: 地理经度, lat: Number) 以指定的经度和纬度创建一个地理点坐标
let point = new BMap.Point(data.longitude, data.latitude);
//自定义label样式
if(!data.border){
getAllLabel(data)
return
}
let tpl = `<div class="bubble bubble-1" data-longitude="${data.longitude}"` +
` data-latitude="${data.latitude}" data-id="${data.id}" data-border="${data.border}">` +
`<p class="name" title="${data.name}">${data.name}</p>` +
`<p title="${data.unit_price}">${(data.unit_price/10000).toFixed(1)}万</p>` +
`<p><span class="count">${data.count}</span>个楼盘</p>` +
`</div>`;
let myLabel = new BMap.Label(tpl,{
position: point, //label 在此处添加点位位置信息
offset: new BMap.Size(-46, -46)
});
myLabel.setStyle({
width: "92px", //宽
height: "92px", //高度
border: "0", //边
background: "rgba(84,144,244,.9)", //背景颜色
borderRadius:"50%",
cursor: "pointer"
});
// myLabel.setTitle(data.name);
map.addOverlay(myLabel);//添加点位
// 当鼠标悬停在label上时显示行政区划边界
myLabel.addEventListener("mouseover", function (e) {
myLabel.setStyle({background:"rgba(241,80,68,.9)"}); //修改覆盖物背景颜色
// console.log('myLabel',myLabel.ba.children[0].dataset)
// var regionName = myLabel.getTitle();
// getBoundary(myLabel.ba.children[0].dataset.border);
getBoundary(data.border)
});
// 当鼠标离开时在删除边界折线数据
myLabel.addEventListener("mouseout", function () {
myLabel.setStyle({background:"rgba(84,144,244,.9)"}); //修改覆盖物背景颜色
if (window.ply) {
let polyPathArray = new Array();
window.ply.setPath(polyPathArray);
map.removeOverlay(ply);//清除折线数据
}
});
myLabel.addEventListener("click", function (e) {
//单击获取点击的经纬度
// alert(e.point.lng + "," + e.point.lat);
let zoomLevel = map.getZoom(); //获取地图缩放级别
if(zoomLevel <= 12) {
initMap(13,true,e.point);
}
if(zoomLevel > 12 && zoomLevel < 16) {
initMap(16,true,e.point);
}
})
})(index)
}
//加载可视范围点
if(labelData.length) {
// for(var i = 0; i < labelData.length; i ++){
// map.addOverlay(labelData[i])
// }
addViewLabel(labelData)
}
}
//根据行政区划绘制边界
function getBoundary(regionBorder) {
if (!window.ply) {
window.ply = new BMap.Polygon(regionBorder, {
strokeWeight: 2,
strokeColor: "rgb(66, 133, 244)",
fillColor: "rgba(53, 126, 244,0.1)"
}); //建立多边形覆盖物
map.addOverlay(ply); //添加覆盖物
} else {
window.ply.setPath(regionBorder);
map.addOverlay(ply); //添加覆盖物
}
ply.enableMassClear();//允许覆盖物在map.clearOverlays方法中被清除
pointArray = pointArray.concat(ply.getPath());
}
//绘制详细楼盘点位信息
function getAllLabel(data) {
map.clearOverlays();
//模拟点位数据
var point = new BMap.Point(data.longitude, data.latitude);
let posInfo = `<p class="bg-info-box"><i class="bg-info">${data.name}</i></p>`
var myLabel = new BMap.Label(posInfo, {
position: point, //label 在此处添加点位位置信息
offset: new BMap.Size(-12, -15)
});
myLabel.setStyle({
border: "0", //边
backgroundColor: "transparent"
});
// myLabel.setTitle(data.name);
labelData.push(myLabel);
// map.addOverlay(myLabel);
//信息窗口模板
let tpl = `<div class="infoBox" data-longitude="${data.longitude}"` +
` data-latitude="${data.latitude}" data-id="${data.id}">` +
`<div class='infoArea'><p class='name'>${data.name}</p><p class='num'>均价<span class='red'>${(data.unit_price/10000).toFixed(1)}</span>万元/m3</p></div>` +
`<i class='arrow'><i class='arrow-i'></i></i></div>`;
var infoBox = new BMapLib.InfoBox(map, tpl, {
boxStyle: {
width: "160px",
minHeight: "50px",
marginBottom: "30px",
backgroundColor: "#fff"
},
closeIconMargin: "15px 10px 4px 4px",
closeIconUrl: "https://image1.ljcdn.com/hdic-resblock/1b7bed8e-b8e1-4187-8cc3-f54c46a625f3.jpg.280x210.jpg",
enableAutoPan: false,
align: INFOBOX_AT_TOP
});
//鼠标点击时打开新标签并关闭上一个标签内容
myLabel.addEventListener("mouseover", function () {
myLabel.setStyle({zIndex: "0"});
if (window.lastInfoBox) {
//判断上一个窗体是否存在，若存在则执行close
window.lastInfoBox.close();
}
window.lastInfoBox = infoBox;
infoBox.open(point);
});
// 当鼠标离开时再删除边界折线数据
myLabel.addEventListener("mouseout", function () {
myLabel.setStyle({zIndex: "-1"});
});
//鼠标点击时标签一直存在
myLabel.addEventListener("click", function () {
window.lastInfoBox=null;
infoBox.open(point);
});
}
//根据地图视野动态加载数据，当数据多时此方法用来提高地图加载性能
//由于此篇模拟点位数据较少，视野加载不明显，当数据多时可直观感觉
function addViewLabel(labels) {
// console.log('addViewLabel',labels)
// console.log('map.getBounds()',map.getBounds())
map.clearOverlays();
for(var i = 0; i < labels.length; i ++){
// getBounds() 返回地图可视区域，以地理坐标表示
// BMapLib.GeoUtils.isPointInRect判断点是否在矩形内 需要引入GeoUtils_min.js
var result = BMapLib.GeoUtils.isPointInRect(labels[i].point, map.getBounds());
if(result == true) {
map.addOverlay(labels[i])
} else{
map.removeOverlay(labels[i]);
}
}
}
</script>
</body>
</html>
InfoBox_min.js
使用http://api.map.baidu.com/library/InfoBox/1.2/src/InfoBox_min.js源码更改了css样式
var BMapLib=window.BMapLib=BMapLib||{};var INFOBOX_AT_TOP=1,INFOBOX_AT_RIGHT=2,INFOBOX_AT_BOTTOM=3,INFOBOX_AT_LEFT=4;(function(){var b,a=b=a||{version:"1.5.0"};a.guid="$BAIDU$";(function(){window[a.guid]=window[a.guid]||{};a.lang=a.lang||{};a.lang.isString=function(d){return"[object String]"==Object.prototype.toString.call(d)};a.lang.isFunction=function(d){return"[object Function]"==Object.prototype.toString.call(d)};a.lang.Event=function(d,e){this.type=d;this.returnValue=true;this.target=e||null;this.currentTarget=null};a.object=a.object||{};a.extend=a.object.extend=function(f,d){for(var e in d){if(d.hasOwnProperty(e)){f[e]=d[e]}}return f};a.event=a.event||{};a.event._listeners=a.event._listeners||[];a.dom=a.dom||{};a.dom._g=function(d){if(a.lang.isString(d)){return document.getElementById(d)}return d};a._g=a.dom._g;a.event.on=function(e,h,j){h=h.replace(/^on/i,"");e=a.dom._g(e);var i=function(l){j.call(e,l)},d=a.event._listeners,g=a.event._eventFilter,k,f=h;h=h.toLowerCase();if(g&&g[h]){k=g[h](e,h,i);f=k.type;i=k.listener}if(e.addEventListener){e.addEventListener(f,i,false)}else{if(e.attachEvent){e.attachEvent("on"+f,i)}}d[d.length]=[e,h,j,i,f];return e};a.on=a.event.on;a.event.un=function(f,i,e){f=a.dom._g(f);i=i.replace(/^on/i,"").toLowerCase();var l=a.event._listeners,g=l.length,h=!e,k,j,d;while(g--){k=l[g];if(k[1]===i&&k[0]===f&&(h||k[2]===e)){j=k[4];d=k[3];if(f.removeEventListener){f.removeEventListener(j,d,false)}else{if(f.detachEvent){f.detachEvent("on"+j,d)}}l.splice(g,1)}}return f};a.un=a.event.un;a.dom.g=function(d){if("string"==typeof d||d instanceof String){return document.getElementById(d)}else{if(d&&d.nodeName&&(d.nodeType==1||d.nodeType==9)){return d}}return null};a.g=a.G=a.dom.g;a.dom._styleFixer=a.dom._styleFixer||{};a.dom._styleFilter=a.dom._styleFilter||[];a.dom._styleFilter.filter=function(e,h,j){for(var d=0,g=a.dom._styleFilter,f;f=g[d];d++){if(f=f[j]){h=f(e,h)}}return h};a.string=a.string||{};a.string.toCamelCase=function(d){if(d.indexOf("-")<0&&d.indexOf("_")<0){return d}return d.replace(/[-_][^-_]/g,function(e){return e.charAt(1).toUpperCase()})};a.dom.setStyle=function(f,e,g){var h=a.dom,d;f=h.g(f);e=a.string.toCamelCase(e);if(d=h._styleFilter){g=d.filter(e,g,"set")}d=h._styleFixer[e];(d&&d.set)?d.set(f,g):(f.style[d||e]=g);return f};a.setStyle=a.dom.setStyle;a.dom.setStyles=function(e,f){e=a.dom.g(e);for(var d in f){a.dom.setStyle(e,d,f[d])}return e};a.setStyles=a.dom.setStyles;a.browser=a.browser||{};a.browser.ie=a.ie=/msie (\d+\.\d+)/i.test(navigator.userAgent)?(document.documentMode||+RegExp["\x241"]):undefined;a.dom._NAME_ATTRS=(function(){var d={cellpadding:"cellPadding",cellspacing:"cellSpacing",colspan:"colSpan",rowspan:"rowSpan",valign:"vAlign",usemap:"useMap",frameborder:"frameBorder"};if(a.browser.ie<8){d["for"]="htmlFor";d["class"]="className"}else{d.htmlFor="for";d.className="class"}return d})();a.dom.setAttr=function(e,d,f){e=a.dom.g(e);if("style"==d){e.style.cssText=f}else{d=a.dom._NAME_ATTRS[d]||d;e.setAttribute(d,f)}return e};a.setAttr=a.dom.setAttr;a.dom.setAttrs=function(f,d){f=a.dom.g(f);for(var e in d){a.dom.setAttr(f,e,d[e])}return f};a.setAttrs=a.dom.setAttrs;a.dom.create=function(f,d){var g=document.createElement(f),e=d||{};return a.dom.setAttrs(g,e)};b.undope=true})();var c=BMapLib.InfoBox=function(f,e,d){this._content=e||"";this._isOpen=false;this._map=f;this._opts=d=d||{};this._opts.offset=d.offset||new BMap.Size(0,0);this._opts.boxClass=d.boxClass||"infoBox";this._opts.boxStyle=d.boxStyle||{};this._opts.closeIconMargin=d.closeIconMargin||"2px";this._opts.closeIconUrl=d.closeIconUrl||"close.png";this._opts.enableAutoPan=d.enableAutoPan?true:false;this._opts.align=d.align||INFOBOX_AT_TOP};c.prototype=new BMap.Overlay();c.prototype.initialize=function(e){var d=this;var g=this._div=a.dom.create("div",{"class":this._opts.boxClass});a.dom.setStyles(g,this._opts.boxStyle);g.style.position="absolute";this._setContent(this._content);var f=e.getPanes().floatPane;f.style.width="auto";f.appendChild(g);this._getInfoBoxSize();a.event.on(g,"onmousedown",function(h){d._stopBubble(h)});a.event.on(g,"onmouseover",function(h){d._stopBubble(h)});a.event.on(g,"click",function(h){d._stopBubble(h)});a.event.on(g,"dblclick",function(h){d._stopBubble(h)});return g};c.prototype.draw=function(){this._isOpen&&this._adjustPosition(this._point)};c.prototype.open=function(d){var e=this,f;if(!this._isOpen){this._map.addOverlay(this);this._isOpen=true;setTimeout(function(){e._dispatchEvent(e,"open",{point:e._point})},10)}if(d instanceof BMap.Point){f=d;this._removeMarkerEvt()}else{if(d instanceof BMap.Marker){if(this._marker){this._removeMarkerEvt()}f=d.getPosition();this._marker=d;!this._markerDragend&&this._marker.addEventListener("dragend",this._markerDragend=function(g){e._point=g.point;e._adjustPosition(e._point);e._panBox();e.show()});!this._markerDragging&&this._marker.addEventListener("dragging",this._markerDragging=function(){e.hide();e._point=e._marker.getPosition();e._adjustPosition(e._point)})}}this.show();this._point=f;this._panBox();this._adjustPosition(this._point)};c.prototype.close=function(){if(this._isOpen){this._map.removeOverlay(this);this._remove();this._isOpen=false;this._dispatchEvent(this,"close",{point:this._point})}};c.prototype.enableAutoPan=function(){this._opts.enableAutoPan=true};c.prototype.disableAutoPan=function(){this._opts.enableAutoPan=false};c.prototype.setContent=function(d){this._setContent(d);this._getInfoBoxSize();this._adjustPosition(this._point)};c.prototype.setPosition=function(d){this._point=d;this._adjustPosition(d);this._removeMarkerEvt()};c.prototype.getPosition=function(){return this._point};c.prototype.getOffset=function(){return this._opts.offset},c.prototype._remove=function(){var d=this;if(this.domElement&&this.domElement.parentNode){a.event.un(this._div.firstChild,"click",d._closeHandler());this.domElement.parentNode.removeChild(this.domElement)}this.domElement=null;this._isOpen=false;this.dispatchEvent("onremove")},a.object.extend(c.prototype,{_getCloseIcon:function(){var d="<img src='"+this._opts.closeIconUrl+"' align='right' style='height:30px;position:absolute;right:0px;cursor:pointer;margin:"+this._opts.closeIconMargin+"'/>";return d},_setContent:function(e){if(!this._div){return}var d=this._getCloseIcon();if(typeof e.nodeType==="undefined"){this._div.innerHTML=d+e}else{this._div.innerHTML=d;this._div.appendChild(e)}this._content=e;this._addEventToClose()},_adjustPosition:function(f){var d=this._getPointPosition(f);var e=this._marker&&this._marker.getIcon();switch(this._opts.align){case INFOBOX_AT_TOP:if(this._marker){this._div.style.bottom=-(d.y-this._opts.offset.height-e.anchor.height+e.infoWindowAnchor.height)-this._marker.getOffset().height+2+"px"}else{this._div.style.bottom=-(d.y-this._opts.offset.height)+"px"}break;case INFOBOX_AT_BOTTOM:if(this._marker){this._div.style.top=d.y+this._opts.offset.height-e.anchor.height+e.infoWindowAnchor.height+this._marker.getOffset().height+"px"}else{this._div.style.top=d.y+this._opts.offset.height+"px"}break}if(this._marker){this._div.style.left=d.x-e.anchor.width+this._marker.getOffset().width+e.infoWindowAnchor.width-this._boxWidth/2+"px"}else{this._div.style.left=d.x-this._boxWidth/2+"px"}},_getPointPosition:function(d){this._pointPosition=this._map.pointToOverlayPixel(d);return this._pointPosition},_getInfoBoxSize:function(){this._boxWidth=parseInt(this._div.offsetWidth,10);this._boxHeight=parseInt(this._div.offsetHeight,10)},_addEventToClose:function(){var d=this;a.event.on(this._div.firstChild,"click",d._closeHandler());this._hasBindEventClose=true},_closeHandler:function(){var d=this;return function(f){d.close()}},_stopBubble:function(d){if(d&&d.stopPropagation){d.stopPropagation()}else{window.event.cancelBubble=true}},_panBox:function(){if(!this._opts.enableAutoPan){return}var i=parseInt(this._map.getContainer().offsetHeight,10),o=parseInt(this._map.getContainer().offsetWidth,10),j=this._boxHeight,d=this._boxWidth;if(j>=i||d>=o){return}if(!this._map.getBounds().containsPoint(this._point)){this._map.setCenter(this._point)}var e=this._map.pointToPixel(this._point),p,m,l,g=d/2-e.x,n=d/2+e.x-o;if(this._marker){var k=this._marker.getIcon()}switch(this._opts.align){case INFOBOX_AT_TOP:var f=this._marker?k.anchor.height+this._marker.getOffset().height-k.infoWindowAnchor.height:0;p=j-e.y+this._opts.offset.height+f+2;break;case INFOBOX_AT_BOTTOM:var f=this._marker?-k.anchor.height+k.infoWindowAnchor.height+this._marker.getOffset().height+this._opts.offset.height:0;m=j+e.y-i+f+4;break}panX=g>0?g:(n>0?-n:0);l=p>0?p:(m>0?-m:0);this._map.panBy(panX,l)},_removeMarkerEvt:function(){this._markerDragend&&this._marker.removeEventListener("dragend",this._markerDragend);this._markerDragging&&this._marker.removeEventListener("dragging",this._markerDragging);this._markerDragend=this._markerDragging=null},_dispatchEvent:function(d,e,g){e.indexOf("on")!=0&&(e="on"+e);var f=new a.lang.Event(e);if(!!g){for(var h in g){f[h]=g[h]}}d.dispatchEvent(f)}})})();
模拟后台请求的数据
// 只有 南山 -- 科技园 这一条有数据，其他只是展示效果
sz.js文件
var szData = {
"errno":0,
"error":"",
"data":{
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