百度地图API

01.namespace WebBroser_Test_V1._0  
02.{  
03.    [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]  
04.  
05.    [System.Runtime.InteropServices.ComVisibleAttribute(true)]  
06.  
07.  
08.    public partial class Form1 : Form  
09.    {  
10.               public Form1()  
11.        {  
12.            InitializeComponent();  
13.        }  
14.        private void Form1_Load(object sender, EventArgs e)  
15.        {  
16.  
17.            string str_url = Application.StartupPath + "\\最终合并版本(昨晚修改).html";  
18.            Uri url = new Uri(str_url);  
19.            webBrowser1.Url = url;  
20.            webBrowser1.ObjectForScripting = this;  
21.           // timer1.Enabled = true;            
22.        }  
23.}  

01.private void timer1_Tick(object sender, EventArgs e)  
02.        {  
03.            try  
04.            {  
05.                string tag_lng = webBrowser1.Document.GetElementById("mouselng").InnerText;  
06.                string tag_lat = webBrowser1.Document.GetElementById("mouselat").InnerText;  
07.                double dou_lng, dou_lat;  
08.                if (double.TryParse(tag_lng, out dou_lng) && double.TryParse(tag_lat, out dou_lat))  
09.                {  
10.                    toolstatus_CurrentLocation.Text ="当前坐标："+ dou_lng.ToString("F5") + "," + dou_lat.ToString("F5");  
11.                }  
12.            }  
13.            catch (Exception ee)  
14.            { MessageBox.Show(ee.Message); }  
15.            
16.        }  

01.private void btnGetLocation_Click(object sender, EventArgs e)  
02.       {  
03.           if (btnGetLocation.Text == "开启实时坐标")  
04.           {  
05.               timer1.Enabled = true;  
06.               btnGetLocation.Text = "关闭实时坐标";  
07.           }  
08.           else  
09.           {  
10.               btnGetLocation.Text = "开启实时坐标";  
11.               timer1.Enabled = false;  
12.           }  
13.       }  

01.var map =new BMap.Map("allmap");  
02.var first_locate=new BMap.Point(108.953098,34.2778);  
03.map.centerAndZoom(first_locate,15);     
04.map.enableScrollWheelZoom(true);  
05.map.addEventListener("mousemove",GetlngAndlat);     
06.function GetlngAndlat(e)  
07.{if(e.point.lng!=null)  
08. {  
09.   
10. document.getElementById("mouselng").innerHTML=e.point.lng;  
11.  document.getElementById("mouselat").innerHTML=e.point.lat;  
12. }  
13.}  

01.//开启测距工具按钮   
02.        private void btnOpenDistance_Click(object sender, EventArgs e)  
03.        {  
04.            webBrowser1.Document.InvokeScript("openGetDistance");  
05.        }  

01.<script type="text/javascript" src="./JScript/DistanceTool_min.js"></script>  
02.function openGetDistance()  
03.{  
04. var myDis=new BMapLib.DistanceTool(map);//map为上面已经初始化好的地图实例   
05. myDis.open();  
06.}  

01.private void btnPutMarker_Click(object sender, EventArgs e)  
02.       {  
03.           if (radioButton1.Checked || radioButton2.Checked || radioButton3.Checked || radioButton4.Checked)  
04.               webBrowser1.Document.InvokeScript("PUTANDSEND");  
05.           else  
06.           {  
07.               MessageBox.Show("至少选择一项！");  
08.           }  
09.       }  
10.       //得到Radiobutton的值   
11.       public string setWhichCar()  
12.       {  
13.           if (radioButton1.Checked)  
14.               return "1";  
15.           if (radioButton2.Checked)  
16.               return "2";  
17.           if (radioButton3.Checked)  
18.               return "3";  
19.           if (radioButton4.Checked)  
20.               return "4";  
21.           return "Erro";  
22.       }  
23.       //将从JS里得到的汽车数据显示到文本框内，并且存入数据库   
24.       public void PutIntotextBox(object markerIndex,object carNumber,object JSlng,object JSlat)  
25.       {  
26.           text_index.Text =markerIndex.ToString();  
27.           text_num.Text = (string)carNumber;  
28.           text_lng.Text = JSlng.ToString();  
29.           text_lat.Text = JSlat.ToString();  
30.           string sql = "insert into 汽车轨迹数据 values (‘"+text_num.Text+"‘,‘"+text_index.Text+"‘,‘"+text_lng.Text+"‘,‘"+text_lat.Text+"‘,‘"+DateTime.Now.ToString()+"‘)";  
31.           DBfunction.getcom(sql);  
32.             
33.       }

01.//---------------放标注，并且将JS的数据传送给WINFORM------------   
02.function PUTANDSEND()  
03.{  
04.  map.addEventListener("rightclick",putAndsend);  
05.}  
06.function putAndsend(e)  
07.{  
08.  //放标注   
09.  var p1=new BMap.Point(e.point.lng,e.point.lat);  
10.  var marker = new BMap.Marker(p1,{icon:myIcon});//将标注的图标改为小汽车   
11.  map.addOverlay(marker);  
12.  marker_num++;//标注索引，这个是个全局变量   
13.  var whichCar=window.external.setWhichCar();  
14.  var label=new BMap.Label(whichCar+"号车-坐标"+marker_num+":"+  
15."("+e.point.lng+","+e.point.lat+")",{offset:new BMap.Size(20,-10)});  
16.  marker.setLabel(label);  
17.  //给WINFORM传值   
18.  window.external.PutIntotextBox(marker_num,whichCar,e.point.lng,e.point.lat);  
19.    
20.}  
//---------------放标注，并且将JS的数据传送给WINFORM------------
function PUTANDSEND()
{
  map.addEventListener("rightclick",putAndsend);
}
function putAndsend(e)
{
  //放标注
  var p1=new BMap.Point(e.point.lng,e.point.lat);
  var marker = new BMap.Marker(p1,{icon:myIcon});//将标注的图标改为小汽车
  map.addOverlay(marker);
  marker_num++;//标注索引，这个是个全局变量
  var whichCar=window.external.setWhichCar();
  var label=new BMap.Label(whichCar+"号车-坐标"+marker_num+":"+
"("+e.point.lng+","+e.point.lat+")",{offset:new BMap.Size(20,-10)});
  marker.setLabel(label);
  //给WINFORM传值
  window.external.PutIntotextBox(marker_num,whichCar,e.point.lng,e.point.lat);
  
}

01.private void btnDrawOrit_Click(object sender, EventArgs e)  
02.        {  
03.            string ss = "^[0-9]*$"; //正则表达式   
04.            string cc = text_whichCar.Text.Trim().ToString();  
05.            bool match = Regex.IsMatch(cc, ss);  
06.            if (Convert.ToInt32(text_whichCar.Text) > 4 || !match||text_whichCar.Text.Trim().Equals(String.Empty))  
07.            // webBrowser1.Document.InvokeScript("PUTANDSEND");   
08.            {  
09.                MessageBox.Show("您输入的不是数字，或者编号不在范围内！");  
10.            }  
11.            else  
12.            {  
13.                string getdata_sql = "select * from 汽车轨迹数据 where 汽车编号=" + text_whichCar.Text;  
14.                whichCarData(getdata_sql);  
15.            }  
16.        }  

01.public void whichCarData(string limit_sql)  
02.       {        
03.               OleDbDataReader DR = DBfunction.getread(limit_sql);  
04.               ArrayList a = new ArrayList();  
05.               while (DR.Read())  
06.               {  
07.                   a.Add(DR[2]);//经度   
08.                   a.Add(DR[3]);//纬度   
09.                   Rows_Num++;  
10.               }  
11.               if (Rows_Num == 0)  
12.                   MessageBox.Show("该车辆，无历史信息！");  
13.               else  
14.               {  
15.                   for (int i = 0; i <= 2 * Rows_Num - 1; i++)  
16.                   {  
17.                       pointArr[i] = Convert.ToDouble(a[i]);  
18.                   }  
19.  
20.                   webBrowser1.Document.InvokeScript("DrawOrit1");  
21.               }  
22.       }  
23.      //辅助方法   
24.       //获取计数   
25.       public int getRowsNumber()  
26.       {  
27.           return Rows_Num;  
28.       }  
29.//根据索引获取特定坐标   
30.       public double Getpoints(int index)  
31.       { return pointArr[index]; }  

01.function DrawOrit1()  
02.{  
03. var Array=[];  
04.var total_num= window.external.getRowsNumber();  
05.for(var i=0;i<=2*total_num-1;i++)  
06.{  
07. Array.push(window.external.Getpoints(i));  
08.}  
09.  
10.var PointArr=[];  
11.for(var i=0;i<=Array.length-1;i+=2)  
12.{//偶数索引存经度，奇数存维度   
13.  PointArr.push(new BMap.Point(Array[i],Array[i+1]));  
14.}  
15.var polyline = new BMap.Polyline(PointArr, {strokeColor:"blue", strokeWeight:6,   strokeOpacity:0.5});  //定义折线   
16.  map.addOverlay(polyline);  
17.window.external.ClearRows_num();//重置窗体计数器   
18.}  

01.private void btnDrawPicture_Click(object sender, EventArgs e)  
02.      {  
03.          if (radio_Circle.Checked)  
04.          { webBrowser1.Document.InvokeScript("drawCircle"); }  
05.          else  
06.          { webBrowser1.Document.InvokeScript("drawRec"); }  
07.      }  

01.public double SearchAllCars(int index)  
02.        {  
03.             
04.            string sql="select * from 汽车轨迹数据";  
05.            OleDbDataReader dr= DBfunction.getread(sql);  
06.           ArrayList allCars = new ArrayList();  
07.            while (dr.Read())  
08.            {  
09.                allCars.Add(dr[2]);  
10.                allCars.Add(dr[3]);  
11.            }  
12.            Danger_Num = allCars.Count;  
13.            double[] sendto_JS = new double[allCars.Count];  
14.            allCars.CopyTo(sendto_JS);  
15.             
16.                return sendto_JS[index];  
17.        }  
18.//全局变量，返回有危险的车辆个数   
19.        public int GetdangerNum()  
20.        { return Danger_Num; }  

01.<!--加载鼠标绘制工具-->  
02.<script type="text/javascript" src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"></script>  
03.<link rel="stylesheet" href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css" />  
04.//回调获得覆盖物的信息（修改后的版本,已测试可用）   
05.    var complete=function(e)  
06.   {  
07.    overlays.push(e.overlay);  
08.    if (e.drawingMode == BMAP_DRAWING_CIRCLE)   
09.          {  
10.            //随便赋值，刷新一遍数据库(此方法只为演示，实际中要另考虑算法)   
11.          var test=  window.external.SearchAllCars(0);  
12.             
13.             
14.         var circle_radius=e.overlay.getRadius();//半径   
15.          //圆心   
16.         var circle_point=new BMap.Point(e.overlay.getCenter().lng,e.overlay.getCenter().lat);  
17.         //从WINFORM里取出数据   
18.         var dangerCars=[];  
19.         var pointlen=window.external.GetdangerNum();  
20.   
21.         for(var k=0;k<=pointlen-1;k++)  
22.          {  
23.             dangerCars.push(window.external.SearchAllCars(k));  
24.          }  
25.         var BMappoints=[];//创建百度地图接口规定的数组   
26.         for(var j=0;j<=dangerCars.length-1;j+=2)  
27.          {  
28.            BMappoints.push(new BMap.Point(dangerCars[j],dangerCars[j+1]));  
29.          }  
30.            
31.          for(var i=0;i<=BMappoints.length-1;i++)  
32.          {  
33.            if(map.getDistance(circle_point,BMappoints[i])<=circle_radius)  
34.            {  
35.               AddMarker(BMappoints[i]);//调用添加标注版本V3.0   
36.            }      
37.          }  
38.            
39.        }  
40.            
41.      };  
42.//线条样式   
43.    var styleOptions = {  
44.        strokeColor:"blue",    //边线颜色。   
45.        fillColor:"blue",      //填充颜色。当参数为空时，圆形将没有填充效果。   
46.        strokeWeight: 3,       //边线的宽度，以像素为单位。   
47.        strokeOpacity: 1,    //边线透明度，取值范围0 - 1。   
48.        fillOpacity: 0.3,      //填充的透明度，取值范围0 - 1。   
49.        strokeStyle: ‘solid‘ //边线的样式，solid或dashed。   
50.    }  
51.    //实例化鼠标绘制工具   
52.    var drawingManager = new BMapLib.DrawingManager(map, {  
53.        isOpen: true, //是否开启绘制模式   
54.        enableDrawingTool: true, //是否显示工具栏   
55.        drawingToolOptions: {  
56.            anchor: BMAP_ANCHOR_TOP_RIGHT, //位置   
57.            offset: new BMap.Size(5, 5), //偏离值   
58.            scale: 0.8, //工具栏缩放比例   
59.            drawingTypes : [           
60.            BMAP_DRAWING_CIRCLE,    
61.            BMAP_DRAWING_RECTANGLE   
62.         ]  
63.  
64.        },  
65.        circleOptions: styleOptions, //圆的样式    
66.        rectangleOptions: styleOptions //矩形的样式   
67.    });  
68.  
69.      
70.      
71.    //添加鼠标绘制工具监听事件，用于获取绘制结果   
72.   drawingManager.addEventListener(‘overlaycomplete‘,complete);  
73.      
74. //drawingManager.enableCalculate();   
75.  
76.      
77.    //----------------------公用方法，用元素id获取元素的值-------------------   
78.    function $(id){  
79.        return document.getElementById(id);  
80.    }  
81.  
82.    //------------------画矩形，让WINFORM调用---------------   
83.    function drawRec(){  
84.drawingManager.setDrawingMode(BMAP_DRAWING_RECTANGLE);}  
85.    //------------------画圆，让WINFORM调用----------------   
86.     function drawCircle(){  
87.drawingManager.setDrawingMode(BMAP_DRAWING_CIRCLE);}  
88.    //------------------清除所有已画图形，让WINFORM调用--------------------   
89.    function clearAll() {  
90.        for(var i = 0; i < overlays.length; i++){  
91.            map.removeOverlay(overlays[i]);  
92.        }  
93.        overlays.length = 0  
94.    }  

01.//回调获得覆盖物信息，未使用该版本   
02.    var overlaycomplete = function(e){  
03.        overlays.push(e.overlay);  
04.        var result = "";  
05.         
06.        result += e.drawingMode + ":";  
07.         
08.        if (e.drawingMode == BMAP_DRAWING_CIRCLE) {  
09.             
10.            var circle_radius=e.overlay.getRadius();  
11.            var circle_point=new BMap.Point(e.overlay.getCenter().lng,e.overlay.getCenter().lat);  
12.            alert(map.getDistance(circle_point,tests[1]));  
13.             for(var i=0;i<3;i++)  
14.          {  
15.            if(map.getDistance(circle_point,tests[i])<=circle_radius)  
16.            {  
17.               AddMarker(tests[i]);  
18.            }      
19.          }  
20.            alert(result);  
21.        }  
22.        if (e.drawingMode == BMAP_DRAWING_POLYLINE || e.drawingMode == BMAP_DRAWING_POLYGON || e.drawingMode == BMAP_DRAWING_RECTANGLE) {  
23.            result += ‘ 所画的点个数：‘ + e.overlay.getPath()[1].lng;  
24.            alert(result);  
25.        }  
26.          
27.    };