Alex 的后院

  /// <summary>
        /// 产生数据
        /// </summary>
        /// <param name="drawWhat">针对哪个类型的数据</param>
        /// <returns></returns>
public List<object> GetDrawData(string drawWhat)
        {
            int type = 1;
            switch (drawWhat)
            {
                case "traffic":
                    type = 1;
                    DrawTitle = "交通";
                    break;
                case "peripheral":
                    type = 2;
                    DrawTitle = "周边环境";
                    break;
                case "price":
                    type = 3;
                    DrawTitle = "门票价格";
                    break;
                case "services":
                    type = 4;
                    DrawTitle = "服务质量";
                    break;
                default:
                    break;
            }
            BLL.TourVillageVote bll = new CnLife.Tour.BLL.TourVillageVote();
            string strWhere = "VillageID=1 and type=" + type;
            Model.TourVillageVote v = bll.GetList("*", strWhere, "VillageID").ToArray()[0];
            Model.TourVillageVote vote = new CnLife.Tour.Model.TourVillageVote();
            List<object> list = new List<object>();
            int[] inter = new int[] { v.Value1, v.Value2, v.Value3, v.Value4, v.Value5, v.Value6 };
            string[] str = new string[] { "差", "一般", "还行", "好", "很好", "非常好" };

            for (int j = 0; j < 6; j++)
            {
                object[] st = new object[] { str[j], inter[j] };
                list.Add(st);
            }

            return list;

        }

/// <summary>
       /// Draw饼图链接
        /// </summary>
        /// <param name="list">数据源</param>
        /// <param name="iSelect">点击了那块</param>
        /// <param name="item">饼图类型</param>
        /// <returns></returns>
        public string DrawMap(List<Object> list, int iSelect,string item)
        {
            string str = "";
            float[] angle = new float[list.Count];
            string[] sTxt = new string[list.Count];
            float AllCount = 0;

            for (int i = 0; i < list.Count; i++)
            {
                AllCount += Convert.ToSingle(((object[])(list[i]))[1]);
            }

            for (int i = 0; i < list.Count; i++)
            {
                object[] o = (object[])list[i];
                angle[i] = Convert.ToSingle(o[1]) * 360.0f / AllCount;
                sTxt[i] = o[0].ToString();
            }



            float x = 120.0f, y = 80.0f, d = 200.0f, offset = 15.0f, x1 = 0.0f, y1 = 0.0f;//圆形x,y坐标，半径，偏移距离，x,y方向的偏移值
            float curangle = 0.0f;//当前已转的角度    

            int oAngle = 4;//描点偏移的度数，越小，圆弧就越圆滑。

            int ox = 0, oy = 0;//圆心坐标

            for (int i = 0; i < angle.Length; i++)
            {
                if (i == iSelect - 1)
                {
                    x1 = Convert.ToSingle(offset * Math.Cos((curangle + angle[i] / 2) * Math.PI / 180.0f));
                    y1 = Convert.ToSingle(offset * Math.Sin((curangle + angle[i] / 2) * Math.PI / 180.0f));

                    ox = Convert.ToInt32(x + d / 2 + x1);
                    oy = Convert.ToInt32(y + d / 2 + y1);
                }
                else
                {
                    ox = Convert.ToInt32(x + d / 2);
                    oy = Convert.ToInt32(y + d / 2);
                }


                str += "<AREA SHAPE=\"poly\" HREF=\"?item=" + item + "&" + item + "=" + (i + 1) + "\" TITLE=\"" + sTxt[i] + ";票数：" + ((object[])(list[i]))[1].ToString() + "\"  COORDS=\"";
                str += ox + "," + oy; //圆心    
                str += "," + (Convert.ToInt32(d / 2 * Math.Cos(curangle * Math.PI / 180.0f)) + ox) + "," + (Convert.ToInt32(d / 2 * Math.Sin(curangle * Math.PI / 180.0f)) + oy);//圆弧的第一个端点的坐标
                float MaxAngle = curangle + angle[i];
                while (true)
                {
                    curangle += oAngle;
                    if (curangle >= MaxAngle)//圆弧上的另一个端点,也即最后一个点
                    {
                        curangle = MaxAngle;
                        str += "," + (Convert.ToInt32(d / 2 * Math.Cos(curangle * Math.PI / 180.0f)) + ox) + "," + (Convert.ToInt32(d / 2 * Math.Sin(curangle * Math.PI / 180.0f)) + oy);
                        break;
                    }
                    else //圆弧上的点
                    {
                        str += "," + (Convert.ToInt32(d / 2 * Math.Cos(curangle * Math.PI / 180.0f)) + ox) + "," + (Convert.ToInt32(d / 2 * Math.Sin(curangle * Math.PI / 180.0f)) + oy);
                    }
                }



                str += "\"> ";
                //490,i*12 + 6 + 120,20,8
            }

            for (int i = 0; i < angle.Length; i++)//描右侧小方形的点
            {
                str += "<AREA SHAPE=\"rect\" HREF=\"?item=" + item + "&" + item + "=" + (i + 1) + "\" TITLE=\"" + Convert.ToSingle(Convert.ToSingle(((object[])(list[i]))[1]) * 100.0f / AllCount).ToString("F") + "%\" COORDS=\"";

                str += "490," + (i * 12 + 6 + 120) + "," + (490 + 20) + "," + (i * 12 + 6 + 120 + 8);

                str += "\"> ";
            }

            return str;
        }

  protected string Map = "";
        protected string Map1 = "";
        protected void Page_Load(object sender, EventArgs e)
        {//注GetIntParam是封装好的方法，GetIntParam(string[url中的参数名],Obj[没有获得时所获时的默认值])
Map1 = DrawMap(GetDrawData(drawWhat), GetIntParam(drawWhat, 0), "services")};

 <map name="Map">
        <%=Map%>
    </map>
   <<img src="DrawVote.aspx?item=traffic&traffic=<%= Request.QueryString["traffic"]%>" usemap="#Map" border=0>
    
    <map name="Map">
        <%=Map%>
    </map>