自定義百度地圖上顯示的覆蓋物
阿新 • • 發佈：2019-01-27
<!DOCTYPE html> <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Hello, World</title> <style type="text/css"> html{height:100%} body{height:100%;margin:0px;padding:0px} #container{height:100%} </style> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=6241064f1bb6ffb432dff3aae77c1d09"></script> </head> <body> <div id="container"></div> <div id="log"></div> <script type="text/javascript"> var map = new BMap.Map("container"); // 建立地圖例項 var point = new BMap.Point(116.404, 39.915); // 建立點座標 map.centerAndZoom(point, 6); // 初始化地圖，設定中心點座標和地圖級別 map.enableScrollWheelZoom(); map.addControl(new BMap.NavigationControl()); map.addControl(new BMap.NavigationControl()); map.addControl(new BMap.ScaleControl()); map.addControl(new BMap.OverviewMapControl()); map.addControl(new BMap.MapTypeControl()); map.addEventListener("zoomend", function(){ var zoom = this.getZoom(); if(zoom > 13){ dislayobj('obj1','none'); dislayobj('obj2','block'); }else{ dislayobj('obj2','none'); dislayobj('obj1','block'); } }); function dislayobj (class_name, status) { var displayObj = document.getElementsByClassName(class_name); for (var i = 0; i < displayObj.length; i++) { displayObj[i].style.display = status; }; } // 複雜的自定義覆蓋物 function ComplexCustomOverlay(point, text, num, class_name, is_display){ this._point = point; this._text = text; this._num = num; this._class = class_name; this._is_display = is_display; } ComplexCustomOverlay.prototype = new BMap.Overlay(); ComplexCustomOverlay.prototype.initialize = function(map){ this._map = map; var div = this._div = document.createElement("div"); div.style.position = "absolute"; div.style.zIndex = BMap.Overlay.getZIndex(this._point.lat); div.style.background = "rgba(13, 173, 81, 0.9)"; div.style.border = "1px solid green"; div.style.color = "white"; div.style.borderRadius = "50%"; div.style.height = "100px"; div.style.width = "100px"; div.style.textAlign = "center"; div.style.padding = "2px"; div.style.whiteSpace = "nowrap"; div.style.MozUserSelect = "none"; div.style.fontSize = "14px"; if(this._is_display){ div.style.display = 'block'; }else{ div.style.display = 'none'; } div.setAttribute('class',this._class); var p1 = this._span = document.createElement("p"); p1.style.paddingTop = "14px"; div.appendChild(p1); p1.appendChild(document.createTextNode(this._text)); var p2 = this._span = document.createElement("p"); div.appendChild(p2); p2.style.fontSize = '16px'; p2.appendChild(document.createTextNode(this._num)); var that = this; var arrow = this._arrow = document.createElement("div"); arrow.style.position = "absolute"; arrow.style.width = "11px"; arrow.style.height = "10px"; arrow.style.top = "22px"; arrow.style.left = "10px"; arrow.style.overflow = "hidden"; div.appendChild(arrow); div.onmouseover = function(){ div.style.background = "rgba(238, 93, 91, 0.9)"; this.style.borderColor = "#EE5D5B"; } div.onmouseout = function(){ div.style.background = "rgba(13, 173, 81, 0.9)"; div.style.borderColor = "green"; } map.getPanes().labelPane.appendChild(div); return div; } ComplexCustomOverlay.prototype.draw = function(){ var map = this._map; var pixel = map.pointToOverlayPixel(this._point); this._div.style.left = pixel.x - parseInt(this._arrow.style.left) + "px"; this._div.style.top = pixel.y - 30 + "px"; } var txt = "昌平實驗基地", num = parseInt(Math.random() * 1000,10) + "套" ; var txt1 = "天津空港", num1 = parseInt(Math.random() * 1000,10) + "套" ; var txt2 = "北京機殼儀器中心", num2 = parseInt(Math.random() * 1000,10) + "套" ; var txt3 = "磁器口科研基地", num3 = parseInt(Math.random() * 1000,10) + "套" ; var myCompOverlay = new ComplexCustomOverlay(new BMap.Point(116.407845,39.914101), txt, num, 'obj1', 1); var myCompOverlay1 = new ComplexCustomOverlay(new BMap.Point(116.445087,39.956536), txt1, num1, 'obj1', 1); var myCompOverlay2 = new ComplexCustomOverlay(new BMap.Point(116.360719,39.947963), txt2, num2, 'obj2', 0); var myCompOverlay3 = new ComplexCustomOverlay(new BMap.Point(116.425298,39.899595), txt3, num3, 'obj2', 0); map.addOverlay(myCompOverlay); map.addOverlay(myCompOverlay1); map.addOverlay(myCompOverlay2); map.addOverlay(myCompOverlay3); </script> </body> </html>