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[Java教程]百度地图同时显示多个路书


 

<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=自己的ak"></script>
<script type="text/javascript" src="js/lushu.js"></script><!--路书 -->

var BMapLib = window.BMapLib = BMapLib || {};(function() {  var b, a = b = a || {    version : "1.5.0"  };  a.guid = "$BAIDU$";  (function() {    window[a.guid] = window[a.guid] || {};    a.dom = a.dom || {};    a.dom.g = function(e) {      if ("string" == typeof e || e instanceof String) {        return document.getElementById(e)      } else {        if (e && e.nodeName && (e.nodeType == 1 || e.nodeType == 9)) {          return e        }      }      return null    };    a.g = a.G = a.dom.g;    a.lang = a.lang || {};    a.lang.isString = function(e) {      return "[object String]" == Object.prototype.toString.call(e)    };    a.isString = a.lang.isString;    a.dom._g = function(e) {      if (a.lang.isString(e)) {        return document.getElementById(e)      }      return e    };    a._g = a.dom._g;    a.dom.getDocument = function(e) {      e = a.dom.g(e);      return e.nodeType == 9 ? e : e.ownerDocument || e.document    };    a.browser = a.browser || {};    a.browser.ie = a.ie = /msie (\d+\.\d+)/i.test(navigator.userAgent) ? (document.documentMode || +RegExp["\x241"])        : undefined;    a.dom.getComputedStyle = function(f, e) {      f = a.dom._g(f);      var h = a.dom.getDocument(f), g;      if (h.defaultView && h.defaultView.getComputedStyle) {        g = h.defaultView.getComputedStyle(f, null);        if (g) {          return g[e] || g.getPropertyValue(e)        }      }      return ""    };    a.dom._styleFixer = a.dom._styleFixer || {};    a.dom._styleFilter = a.dom._styleFilter || [];    a.dom._styleFilter.filter = function(f, j, k) {      for (var e = 0, h = a.dom._styleFilter, g; g = h[e]; e++) {        if (g = g[k]) {          j = g(f, j)        }      }      return j    };    a.string = a.string || {};    a.string.toCamelCase = function(e) {      if (e.indexOf("-") < 0 && e.indexOf("_") < 0) {        return e      }      return e.replace(/[-_][^-_]/g, function(f) {        return f.charAt(1).toUpperCase()      })    };    a.dom.getStyle = function(g, f) {      var i = a.dom;      g = i.g(g);      f = a.string.toCamelCase(f);      var h = g.style[f] || (g.currentStyle ? g.currentStyle[f] : "")          || i.getComputedStyle(g, f);      if (!h) {        var e = i._styleFixer[f];        if (e) {          h = e.get ? e.get(g) : a.dom.getStyle(g, e)        }      }      if (e = i._styleFilter) {        h = e.filter(f, h, "get")      }      return h    };    a.getStyle = a.dom.getStyle;    a.dom._NAME_ATTRS = (function() {      var e = {        cellpadding : "cellPadding",        cellspacing : "cellSpacing",        colspan : "colSpan",        rowspan : "rowSpan",        valign : "vAlign",        usemap : "useMap",        frameborder : "frameBorder"      };      if (a.browser.ie < 8) {        e["for"] = "htmlFor";        e["class"] = "className"      } else {        e.htmlFor = "for";        e.className = "class"      }      return e    })();    a.dom.setAttr = function(f, e, g) {      f = a.dom.g(f);      if ("style" == e) {        f.style.cssText = g      } else {        e = a.dom._NAME_ATTRS[e] || e;        f.setAttribute(e, g)      }      return f    };    a.setAttr = a.dom.setAttr;    a.dom.setAttrs = function(g, e) {      g = a.dom.g(g);      for ( var f in e) {        a.dom.setAttr(g, f, e[f])      }      return g    };    a.setAttrs = a.dom.setAttrs;    a.dom.create = function(g, e) {      var h = document.createElement(g), f = e || {};      return a.dom.setAttrs(h, f)    };    a.object = a.object || {};    a.extend = a.object.extend = function(g, e) {      for ( var f in e) {        if (e.hasOwnProperty(f)) {          g[f] = e[f]        }      }      return g    }  })();  var c = BMapLib.LuShu = function(g, f, e) {    if (!f || f.length < 1) {      return    }    this._map = g;    this._path = f;    this.i = 0;    this._setTimeoutQuene = [];    this._projection = this._map.getMapType().getProjection();    this._opts = {      icon : null,      speed : 4000,      defaultContent : ""    };    this._setOptions(e);    this._rotation = 0;    if (!this._opts.icon instanceof BMap.Icon) {      this._opts.icon = defaultIcon    }  };  c.prototype._setOptions = function(e) {    if (!e) {      return    }    for ( var f in e) {      if (e.hasOwnProperty(f)) {        this._opts[f] = e[f]      }    }  };  c.prototype.start = function() {    var f = this, e = f._path.length;    if (f.i && f.i < e - 1) {      if (!f._fromPause) {        return      } else {        if (!f._fromStop) {          f._moveNext(++f.i)        }      }    } else {      f._addMarker();      f._timeoutFlag = setTimeout(function() {        f._addInfoWin();        if (f._opts.defaultContent == "") {          f.hideInfoWindow()        }        f._moveNext(f.i)      }, 400)    }    this._fromPause = false;    this._fromStop = false  }, c.prototype.stop = function() {    this.i = 0;    this._fromStop = true;    clearInterval(this._intervalFlag);    this._clearTimeout();    for (var g = 0, f = this._opts.landmarkPois, e = f.length; g < e; g++) {      f[g].bShow = false    }  };  c.prototype.pause = function() {    clearInterval(this._intervalFlag);    this._fromPause = true;    this._clearTimeout()  };  c.prototype.hideInfoWindow = function() {    this._overlay._div.style.visibility = "hidden"  };  c.prototype.showInfoWindow = function() {    this._overlay._div.style.visibility = "visible"  };  a.object      .extend(          c.prototype,          {            _addMarker : function(f) {              if (this._marker) {                this.stop();                this._map.removeOverlay(this._marker);                clearTimeout(this._timeoutFlag)              }              this._overlay                  && this._map.removeOverlay(this._overlay);              var e = new BMap.Marker(this._path[0]);              this._opts.icon && e.setIcon(this._opts.icon);              this._map.addOverlay(e);              e.setAnimation(BMAP_ANIMATION_DROP);              this._marker = e            },            _addInfoWin : function() {              var f = this;              var e = new d(f._marker.getPosition(),                  f._opts.defaultContent);              e.setRelatedClass(this);              this._overlay = e;              this._map.addOverlay(e)            },            _getMercator : function(e) {              return this._map.getMapType().getProjection()                  .lngLatToPoint(e)            },            _getDistance : function(f, e) {              return Math.sqrt(Math.pow(f.x - e.x, 2)                  + Math.pow(f.y - e.y, 2))            },            _move : function(n, j, m) {              var i = this, h = 0, e = 10, f = this._opts.speed                  / (1000 / e), l = this._projection                  .lngLatToPoint(n), k = this._projection                  .lngLatToPoint(j), g = Math.round(i                  ._getDistance(l, k)                  / f);              if (g < 1) {                i._moveNext(++i.i);                return              }              i._intervalFlag = setInterval(                  function() {                    if (h >= g) {                      clearInterval(i._intervalFlag);                      if (i.i > i._path.length) {                        return                      }                      i._moveNext(++i.i)                    } else {                      h++;                      var o = m(l.x, k.x, h, g), r = m(                          l.y, k.y, h, g), q = i._projection                          .pointToLngLat(new BMap.Pixel(                              o, r));                      if (h == 1) {                        var p = null;                        if (i.i - 1 >= 0) {                          p = i._path[i.i - 1]                        }                        if (i._opts.enableRotation == true) {                          i.setRotation(p, n, j)                        }                        if (i._opts.autoView) {                          if (!i._map.getBounds()                              .containsPoint(q)) {                            i._map.setCenter(q)                          }                        }                      }                      i._marker.setPosition(q);                      i._setInfoWin(q)                    }                  }, e)            },            setRotation : function(l, f, m) {              var j = this;              var e = 0;              f = j._map.pointToPixel(f);              m = j._map.pointToPixel(m);              if (m.x != f.x) {                var k = (m.y - f.y) / (m.x - f.x), g = Math                    .atan(k);                e = g * 360 / (2 * Math.PI);                if (m.x < f.x) {                  e = -e + 90 + 90                } else {                  e = -e                }                j._marker.setRotation(-e)              } else {                var h = m.y - f.y;                var i = 0;                if (h > 0) {                  i = -1                } else {                  i = 1                }                j._marker.setRotation(-i * 90)              }              return            },            linePixellength : function(f, e) {              return Math.sqrt(Math.abs(f.x - e.x)                  * Math.abs(f.x - e.x) + Math.abs(f.y - e.y)                  * Math.abs(f.y - e.y))            },            pointToPoint : function(f, e) {              return Math.abs(f.x - e.x) * Math.abs(f.x - e.x)                  + Math.abs(f.y - e.y) * Math.abs(f.y - e.y)            },            _moveNext : function(e) {              var f = this;              if (e < this._path.length - 1) {                f._move(f._path[e], f._path[e + 1],                    f._tween.linear)              }            },            _setInfoWin : function(g) {              var f = this;              if (!f._overlay) {                return              }              f._overlay.setPosition(g, f._marker.getIcon().size);              var e = f._troughPointIndex(g);              if (e != -1) {                clearInterval(f._intervalFlag);                f._overlay                    .setHtml(f._opts.landmarkPois[e].html);                f._overlay.setPosition(g,                    f._marker.getIcon().size);                f._pauseForView(e)              } else {                f._overlay.setHtml(f._opts.defaultContent)              }            },            _pauseForView : function(e) {              var g = this;              var f = setTimeout(function() {                g._moveNext(++g.i)              }, g._opts.landmarkPois[e].pauseTime * 1000);              g._setTimeoutQuene.push(f)            },            _clearTimeout : function() {              for ( var e in this._setTimeoutQuene) {                clearTimeout(this._setTimeoutQuene[e])              }              this._setTimeoutQuene.length = 0            },            _tween : {              linear : function(f, j, h, i) {                var e = f, l = j - f, g = h, k = i;                return l * g / k + e              }            },            _troughPointIndex : function(f) {              var h = this._opts.landmarkPois, j;              for (var g = 0, e = h.length; g < e; g++) {                if (!h[g].bShow) {                  j = this._map.getDistance(new BMap.Point(                      h[g].lng, h[g].lat), f);                  if (j < 10) {                    h[g].bShow = true;                    return g                  }                }              }              return -1            }          });  function d(e, f) {    this._point = e;    this._html = f  }  d.prototype = new BMap.Overlay();  d.prototype.initialize = function(e) {    var f = this._div = a.dom        .create(            "div",            {              style : "border:solid 1px #ccc;width:auto;min-width:50px;text-align:center;position:absolute;background:#fff;color:#000;font-size:12px;border-radius: 10px;padding:5px;white-space: nowrap;"            });    f.innerHTML = this._html;    e.getPanes().floatPane.appendChild(f);    this._map = e;    return f  };  d.prototype.draw = function() {    this.setPosition(this.lushuMain._marker.getPosition(),        this.lushuMain._marker.getIcon().size)  };  a.object.extend(d.prototype, {    setPosition : function(h, i) {      var f = this._map.pointToOverlayPixel(h), e = a.dom.getStyle(          this._div, "width"), g = a.dom          .getStyle(this._div, "height");      overlayW = parseInt(this._div.clientWidth || e, 10),          overlayH = parseInt(this._div.clientHeight || g, 10);      this._div.style.left = f.x - overlayW / 2 + "px";      this._div.style.bottom = -(f.y - i.height) + "px"    },    setHtml : function(e) {      this._div.innerHTML = e    },    setRelatedClass : function(e) {      this.lushuMain = e    }  })})();

路书js

 

 1 function showallrecord(starttime,endtime){//显示多条开始结束时间之间的自行车路书 2   var bikeId=null; 3   $.getJSON("./GetBickIdServlet",function(json){ 4     bikeId = json;//所有自行车编号 5   }); 6   var json={ 7       "StartTime":starttime,//开始时间 8       "EndTime":endtime//结束时间 9   };10   //创建二维数组,例如pointArray[i]中i自行车编号,pointArray[i][j]为编号为i的自行车的所有借还站点信息11   $.getJSON("./GetAllRecordServlet",{json:JSON.stringify(json)},function(json){12     var j = 0;13     var stationlonlist=new Array();14     var stationlatlist=new Array();15     var pointArray=new Array();16     var bikeIdlist = new Array();17     for(var i = 0; i < bikeId.length; i++){18       stationlonlist[i] = new Array();19       stationlatlist[i] = new Array();20       pointArray[i] = new Array();21       bikeIdlist[i] = bikeId[i].BikeId;22     }23     var tt = json.length < 200?json.length:200;//如果查询出来的自行车借还站点记录多于200条,则显示200条。(待完善)24     for (var row = 0; row < pointArray.length; row++) {25       while (j < tt) {26         var k = j;27         var p = 0;28         var stationlon = parseFloat(json[j].Stationlon);// String类型转换成float类型29         stationlonlist[row][p]=stationlon;// 将stationlon放到stationlonlist里30         var stationlat = parseFloat(json[j].Stationlat);31         stationlatlist[row][p]=stationlat;// 将stationlat放到stationlatlist里32         pointArray[row][p] = new BMap.Point(stationlon,stationlat);33         while (bikeIdlist[row] == json[k + 1].BikeId) {34           k++;35           p++;36           stationlon= parseFloat(json[k].Stationlon);// String类型转换成float类型37           stationlonlist[row][p]=stationlon;// 将stationlon放到stationlonlist里38           stationlat= parseFloat(json[k].Stationlat);39           stationlatlist[row][p] =stationlat;// 将stationlat放到stationlatlist里40           pointArray[row][p] = new BMap.Point(stationlon, stationlat);41         }42         addMarkertest(pointArray,row);//添加标记点43         j = k + 1;44         break;45       }46       var bikespeedtest = speedtest(pointArray,row);//每辆自行车路书的速度47       polylinetest(pointArray,row,stationlonlist,stationlatlist);//每辆自行车借还站点间画折线48       lushutest(pointArray,bikespeedtest,row,stationlonlist,stationlatlist);//每辆自行车借还站点的路书路径49     }50     map.setViewport(pointArray);51   });52 }

 

 1 function speedtest(pointArray,row){//根据自行车的借还时间差来显示不同的路书速度(待完善) 2   var distance = 0;//直行车走过的路径长度 3   for(var i = 0; i < pointArray[row].length-1; i++){ 4     distance += (map.getDistance(pointArray[row][i],pointArray[row][i+1]));//自行车借还站点的路径长度 5   } 6   return distance/20;//速度=路径长度/时间(此处时间固定,可改为根据数据库读取的时间) 7 } 8  9 //10 function polylinetest(pointArray,row,stationlonlist,stationlatlist){11   var points = new Array();12   for(var i = 0; i < pointArray[row].length; i++){13     points[i] = new BMap.Point(parseFloat(stationlonlist[row][i]), parseFloat(stationlatlist[row][i]));14   }15   //增加点与点之间的连线16   var polyline = new BMap.Polyline(points, {17     strokeColor : getColor(),18     strokeWeight : 2,19     strokeOpacity : 0.520   }); // 创建折线21   map.addOverlay(polyline); // 绘制折线22 }23 24 //25 function lushutest(pointArray,bikespeedtest,row,stationlonlist,stationlatlist){26   var points = new Array();27   for(var i = 0; i < pointArray[row].length; i++){28     points[i] = new BMap.Point(parseFloat(stationlonlist[row][i]), parseFloat(stationlatlist[row][i]));29   }30   var lushu = new BMapLib.LuShu(map, points, {31     defaultContent : "",32     autoView : true, // 是否开启自动视野调整,如果开启那么路书在运动过程中会根据视野自动调整33     icon : new BMap.Icon('photo/bike.png', new BMap.Size(22, 22), {34       anchor : new BMap.Size(10, 25)35     }),36     // enableRotation: true, //是否设置marker随着道路的走向进行旋转37     speed : bikespeedtest,38   });  39   lushu.start();40 }41 43 //生成折线的随机颜色44 function sj16(){45   var sjshu=Math.round(Math.random()*10*2);46   do47   {48    sjshu=Math.round(Math.random()*10*2);49   }while (sjshu>=14);50   return sjshu;51 }52 function getColor(){53   var hex = ['1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'];54   var yanse="";55   for(i=0; i<6; i++){56     yanse+=hex[sj16()];57   }58   return "#"+yanse59 }

效果图: