/// <summary>
/// 已知两条直线的ABC，返回其交点坐标
/// </summary>
/// <param name="zhiXian1"></param>
/// <param name="zhiXian2"></param>
/// <returns></returns>
public static Point GetIntersectPointofLines(ABC zhiXian1, ABC zhiXian2)
{
Point result = null;
double m = zhiXian1.A * zhiXian2.B - zhiXian2.A * zhiXian1.B;
if (m == 0)
{
return(result);
}
result = new Point()
{
X = (zhiXian2.C * zhiXian1.B - zhiXian1.C * zhiXian2.B) / m,
Y = (zhiXian1.C * zhiXian2.A - zhiXian2.C * zhiXian1.A) / m
};
return(result);
}
static void Main(string[] args)
{
List <ZhuangHaoInfo> zhuangHaoList = new List <ZhuangHaoInfo>();
// 查询数据库获取桩号数据
using (SqlConnection connection = new SqlConnection(Program.ConnectionString))
{
string cmdText = "SELECT ID, ZhuangHao, MID_Y, MID_X, L_Y, L_X, R_Y, R_X FROM ZhuangHaoInfo WHERE CengHao = 0;";
SqlCommand command = new SqlCommand(cmdText, connection);
connection.Open();
var reader = command.ExecuteReader(CommandBehavior.CloseConnection);
while (reader.Read())
{
ZhuangHaoInfo hao = new ZhuangHaoInfo()
{
ID = Convert.ToInt32(reader["ID"]),
ZhuangHao = reader["ZhuangHao"].ToString(),
MID_Y = Convert.ToDouble(reader["MID_Y"]),
MID_X = Convert.ToDouble(reader["MID_X"]),
L_Y = Convert.ToDouble(reader["L_Y"]),
L_X = Convert.ToDouble(reader["L_X"]),
R_Y = Convert.ToDouble(reader["R_Y"]),
R_X = Convert.ToDouble(reader["R_X"])
};
zhuangHaoList.Add(hao);
}
}
// 升序
var query = zhuangHaoList.OrderBy(e => e, new ZhuangHaoInfoComp());
// 右顶点、中间顶点、左顶点
Point rightTop, midTop, leftTop;
// 右下点、中间底点、左下点
Point rightBottom, midBottom, leftBottom;
// 两个三等分点（上面的点、下面的点）
Point first_SanFen, second_SanFen;
rightTop = midTop = leftTop = null;
rightBottom = midBottom = leftBottom = null;
// 线段
Segment segment = null;
for (int i = 0; i < query.Count() - 1; i++)
{
ZhuangHaoInfo zhuangTop = query.ElementAt(i);
ZhuangHaoInfo zhuangBottom = query.ElementAt(i + 1);
rightTop = new Point()
{
X = zhuangTop.R_X, Y = zhuangTop.R_Y
};
midTop = new Point()
{
X = zhuangTop.MID_X, Y = zhuangTop.MID_Y
};
leftTop = new Point()
{
X = zhuangTop.L_X, Y = zhuangTop.L_Y
};
rightBottom = new Point()
{
X = zhuangBottom.R_X, Y = zhuangBottom.R_Y
};
midBottom = new Point()
{
X = zhuangBottom.MID_X, Y = zhuangBottom.MID_Y
};
leftBottom = new Point()
{
X = zhuangBottom.L_X, Y = zhuangBottom.L_Y
};
// 计算两个三等分点坐标
segment = new Segment {
start = midTop, end = midBottom
};
SanDengFen(segment, out first_SanFen, out second_SanFen);
// 计算两条垂线
segment = new Segment {
start = midTop, end = second_SanFen
};
ABC first_ChuiXian = ABC_ZhongChuiXian(segment);
segment = new Segment {
start = first_SanFen, end = midBottom
};
ABC second_ChuiXian = ABC_ZhongChuiXian(segment);
// 计算两条边线
ABC rightLine = ABC_ZhiXian(rightTop, rightBottom);
ABC leftLine = ABC_ZhiXian(leftTop, leftBottom);
// 计算垂线与边线交点
Point first_ChuiXian_right = GetIntersectPointofLines(rightLine, first_ChuiXian); // 第一条垂线与右边线的交点
Point first_ChuiXian_left = GetIntersectPointofLines(leftLine, first_ChuiXian); // 第一条垂线与左边线的交点
Point second_ChuiXian_right = GetIntersectPointofLines(rightLine, second_ChuiXian); // 第二条垂线与右边线的交点
Point second_ChuiXian_left = GetIntersectPointofLines(leftLine, second_ChuiXian); // 第二条垂线与右边线的交点
// 分为三个监控区域
JianKongQuYu[] yus = new JianKongQuYu[]
{
new JianKongQuYu {
ZhuangHaoID_Start = zhuangTop.ID, ZhuangHaoID_End = zhuangBottom.ID, XuHao = 1, SHAPE2 = Format2POLYGON(leftTop, midTop, rightTop, first_ChuiXian_right, first_ChuiXian_left, leftTop)
},
new JianKongQuYu {
ZhuangHaoID_Start = zhuangTop.ID, ZhuangHaoID_End = zhuangBottom.ID, XuHao = 2, SHAPE2 = Format2POLYGON(first_ChuiXian_left, first_ChuiXian_right, second_ChuiXian_right, second_ChuiXian_left, first_ChuiXian_left)
},
new JianKongQuYu {
ZhuangHaoID_Start = zhuangTop.ID, ZhuangHaoID_End = zhuangBottom.ID, XuHao = 3, SHAPE2 = Format2POLYGON(second_ChuiXian_left, second_ChuiXian_right, rightBottom, midBottom, leftBottom, second_ChuiXian_left)
}
};
using (SqlConnection connection = new SqlConnection(ConnectionString))
{
string cmdText = @"INSERT INTO JianKongQuYuGeo (ZhuangHaoID_Start, ZhuangHaoID_End, XuHao, SHAPE2) VALUES (@ZhuangHaoID_Start, @ZhuangHaoID_End, @XuHao, @SHAPE2);";
SqlCommand command = new SqlCommand(cmdText, connection);
command.Parameters.Add("@ZhuangHaoID_Start", SqlDbType.Int);
command.Parameters.Add("@ZhuangHaoID_End", SqlDbType.Int);
command.Parameters.Add("@XuHao", SqlDbType.Int);
command.Parameters.Add("@SHAPE2", SqlDbType.NVarChar);
connection.Open();
foreach (JianKongQuYu item in yus)
{
command.Parameters["@ZhuangHaoID_Start"].Value = item.ZhuangHaoID_Start;
command.Parameters["@ZhuangHaoID_End"].Value = item.ZhuangHaoID_End;
command.Parameters["@XuHao"].Value = item.XuHao;
command.Parameters["@SHAPE2"].Value = item.SHAPE2;
int r = command.ExecuteNonQuery();
Console.WriteLine($"向数据库表中插入{r}行数据。桩号：{zhuangTop.ZhuangHao} - {zhuangBottom.ZhuangHao}，序号：{item.XuHao}。");
}
}
}
}