public static object choice(int x, int y, int width, int height)
{//是否被选中
foreach (var rpt in MyGlo.rplist)
{
Point temp_p = Funcs.CoorTransform(rpt.Map_X, rpt.Map_Y, width, height);
if (Math.Pow(x - temp_p.X, 2) + Math.Pow(y - temp_p.Y, 2) <= 25)
{
return(rpt);
}
}
foreach (var npt in MyGlo.nplist)
{
Point temp_p = CoorTransform(npt.Map_X, npt.Map_Y, width, height);
if (Math.Pow(x - temp_p.X, 2) + Math.Pow(y - temp_p.Y, 2) <= 25)
{
return(npt);
}
}
foreach (var line in MyGlo.llist)
{
for (int i = 0; i < line.CoorList.Count - 1; i++)
{
Point p1 = CoorTransform(line.CoorList[i].Map_X, line.CoorList[i].Map_Y, width, height);
Point p2 = CoorTransform(line.CoorList[i + 1].Map_X, line.CoorList[i + 1].Map_Y, width, height);
if ((x <= p1.X + 6 && x >= p2.X - 6 && y <= p1.Y + 6 && y >= p2.Y - 6) || (x >= p1.X - 6 && x <= p2.X + 6 && y <= p2.Y - 6 && y >= p1.Y + 6) ||
(x >= p1.X + 6 && x <= p2.X - 6 && y >= p2.Y + 6 && y <= p1.Y - 6) || (x <= p1.X - 6 && x >= p2.X + 6 && y <= p2.Y - 6 && y >= p1.Y + 6))
{
float dis = DouglasPeuker.Distance(x, y, p1.X, p1.Y, p2.X, p2.Y);
if (dis <= 5)
{
return(line);
}
}
}
if (line.ID[1] == '3')
{
Point p1 = CoorTransform(line.CoorList[0].Map_X, line.CoorList[0].Map_Y, width, height);
Point p2 = CoorTransform(line.CoorList[line.CoorList.Count - 1].Map_X, line.CoorList[line.CoorList.Count - 1].Map_Y, width, height);
if ((x <= p1.X + 6 && x >= p2.X - 6 && y <= p1.Y + 6 && y >= p2.Y - 6) || (x >= p1.X - 6 && x <= p2.X + 6 && y <= p2.Y - 6 && y >= p1.Y + 6) ||
(x >= p1.X + 6 && x <= p2.X - 6 && y >= p2.Y + 6 && y <= p1.Y - 6) || (x <= p1.X - 6 && x >= p2.X + 6 && y <= p2.Y - 6 && y >= p1.Y + 6))
{
float dis = DouglasPeuker.Distance(x, y, p1.X, p1.Y, p2.X, p2.Y);
if (dis <= 5)
{
return(line);
}
}
}
}
return(null);
}
public static void Rdx(object o, object pictureBox1, Point p2)
{//点与线关系判断
object obj = Funcs.choice(p2.X, p2.Y, (pictureBox1 as PictureBox).Width, (pictureBox1 as PictureBox).Height);
if ((obj is Lineshape) && (obj as Lineshape).ID[0] == 'l' && (obj as Lineshape).ID[1] == '1')
{
List <float> temp = new List <float>();
for (int i = 0; i < (obj as Lineshape).CoorList.Count() - 1; i++)
{
if (((o as Basepoint).Map_X <= (obj as Lineshape).CoorList[i].Map_X && (o as Basepoint).Map_X >= (obj as Lineshape).CoorList[i + 1].Map_X &&
(o as Basepoint).Map_Y <= (obj as Lineshape).CoorList[i].Map_Y && (o as Basepoint).Map_Y >= (obj as Lineshape).CoorList[i + 1].Map_Y) ||
((o as Basepoint).Map_X >= (obj as Lineshape).CoorList[i].Map_X && (o as Basepoint).Map_X <= (obj as Lineshape).CoorList[i + 1].Map_X &&
(o as Basepoint).Map_Y <= (obj as Lineshape).CoorList[i + 1].Map_Y && (o as Basepoint).Map_Y >= (obj as Lineshape).CoorList[i].Map_Y) ||
((o as Basepoint).Map_X >= (obj as Lineshape).CoorList[i].Map_X && (o as Basepoint).Map_X <= (obj as Lineshape).CoorList[i + 1].Map_X &&
(o as Basepoint).Map_Y >= (obj as Lineshape).CoorList[i + 1].Map_Y && (o as Basepoint).Map_Y <= (obj as Lineshape).CoorList[i].Map_Y) ||
((o as Basepoint).Map_X <= (obj as Lineshape).CoorList[i].Map_X && (o as Basepoint).Map_X >= (obj as Lineshape).CoorList[i + 1].Map_X &&
(o as Basepoint).Map_Y <= (obj as Lineshape).CoorList[i + 1].Map_Y && (o as Basepoint).Map_Y >= (obj as Lineshape).CoorList[i].Map_Y))
{//是否在最小外接矩形内
temp.Add(DouglasPeuker.Distance((o as Basepoint).Map_X, (o as Basepoint).Map_Y, (obj as Lineshape).CoorList[i].Map_X,
(obj as Lineshape).CoorList[i].Map_Y, (obj as Lineshape).CoorList[i + 1].Map_X, (obj as Lineshape).CoorList[i + 1].Map_Y));
}
else
{//求最短距离
temp.Add(Math.Min(DouglasPeuker.Distance((o as Basepoint).Map_X, (o as Basepoint).Map_Y, (obj as Lineshape).CoorList[i].Map_X, (obj as Lineshape).CoorList[i].Map_Y),
DouglasPeuker.Distance((o as Basepoint).Map_X, (o as Basepoint).Map_Y, (obj as Lineshape).CoorList[i + 1].Map_X, (obj as Lineshape).CoorList[i + 1].Map_Y)));
}
}
if (temp.ToArray().Min() == 0)
{
MessageBox.Show("在直线上", "关系显示：");
}
else
{
MessageBox.Show("相离，二者间的最小距离为：" + temp.ToArray().Min(), "关系显示：");
}
}
else
{//不是所要的目标
MessageBox.Show("请先选择一个实体点或注记点，然后选择一条直线段", "提示");
}
}
private void pictureBox1_Click(object sender, EventArgs e)
{
try
{
//距离量测
if (bool_cul == true)
{
if (bool_dis == true)
{
p = pictureBox1.PointToClient(MousePosition);
bool_dis = false;
}
else
{
Point p2 = pictureBox1.PointToClient(MousePosition);
object obj = Funcs.choice(p2.X, p2.Y, pictureBox1.Width, pictureBox1.Height);
if (obj == null)
{
float d = DouglasPeuker.Distance(p2.X, p2.Y, p.X, p.Y);
MessageBox.Show("未选中目标，鼠标两点地理距离为：" + (d / MyGlo.scale).ToString("F4"), "距离显示：");
NoActive();
}
else
{
if (obj is Realpoint)
{
Point temp_p;
temp_p = Funcs.CoorTransform((obj as Realpoint).Map_X, (obj as Realpoint).Map_Y, pictureBox1.Width, pictureBox1.Height);
float d = DouglasPeuker.Distance(p.X, p.Y, temp_p.X, temp_p.Y);
MessageBox.Show("选中实体点，鼠标两点地理距离为：" + (d / MyGlo.scale).ToString("F4"), "距离显示：");
NoActive();
}
else if (obj is Notepoint)
{
Point temp_p;
temp_p = Funcs.CoorTransform((obj as Notepoint).Map_X, (obj as Notepoint).Map_Y, pictureBox1.Width, pictureBox1.Height);
float d = DouglasPeuker.Distance(p.X, p.Y, temp_p.X, temp_p.Y);
MessageBox.Show("选中注记点，鼠标两点地理距离为：" + (d / MyGlo.scale).ToString("F4"), "距离显示：");
NoActive();
}
else if (obj is Lineshape)
{
if ((obj as Lineshape).ID[0] == 'l' && (obj as Lineshape).ID[1] == '1' && (obj as Lineshape).CoorList.Count == 2)
{
if ((p.X <= (obj as Lineshape).CoorList[0].Map_X && p.X >= (obj as Lineshape).CoorList[1].Map_X &&
p.Y <= (obj as Lineshape).CoorList[0].Map_Y && p.Y >= (obj as Lineshape).CoorList[1].Map_Y) ||
(p.X >= (obj as Lineshape).CoorList[0].Map_X && p.X <= (obj as Lineshape).CoorList[1].Map_X &&
p.Y <= (obj as Lineshape).CoorList[1].Map_Y && p.Y >= (obj as Lineshape).CoorList[0].Map_Y) ||
(p.X >= (obj as Lineshape).CoorList[0].Map_X && p.X <= (obj as Lineshape).CoorList[1].Map_X &&
p.Y >= (obj as Lineshape).CoorList[1].Map_Y && p.Y <= (obj as Lineshape).CoorList[0].Map_Y) ||
(p.X <= (obj as Lineshape).CoorList[0].Map_X && p.X >= (obj as Lineshape).CoorList[1].Map_X &&
p.Y <= (obj as Lineshape).CoorList[1].Map_Y && p.Y >= (obj as Lineshape).CoorList[0].Map_Y))
{
Point temp_p1, temp_p2;
temp_p1 = Funcs.CoorTransform((obj as Lineshape).CoorList[0].Map_X, (obj as Lineshape).CoorList[0].Map_Y, pictureBox1.Width, pictureBox1.Height);
temp_p2 = Funcs.CoorTransform((obj as Lineshape).CoorList[1].Map_X, (obj as Lineshape).CoorList[1].Map_Y, pictureBox1.Width, pictureBox1.Height);
float d = DouglasPeuker.Distance(p.X, p.Y, temp_p1.X, temp_p1.Y, temp_p2.X, temp_p2.Y);
MessageBox.Show("选中直线，点到地理距离为：" + (d / MyGlo.scale).ToString("F4"), "距离显示：");
NoActive();
}
else
{
Point temp_p1, temp_p2;
temp_p1 = Funcs.CoorTransform((obj as Lineshape).CoorList[0].Map_X, (obj as Lineshape).CoorList[0].Map_Y, pictureBox1.Width, pictureBox1.Height);
temp_p2 = Funcs.CoorTransform((obj as Lineshape).CoorList[1].Map_X, (obj as Lineshape).CoorList[1].Map_Y, pictureBox1.Width, pictureBox1.Height);
float d = Math.Min(DouglasPeuker.Distance(p.X, p.Y, temp_p1.X, temp_p1.Y), DouglasPeuker.Distance(p.X, p.Y, temp_p2.X, temp_p2.Y));
MessageBox.Show("选中直线，点到地理距离为：" + (d / MyGlo.scale).ToString("F4"), "距离显示：");
NoActive();
}
}
else
{
MessageBox.Show("暂不支持曲线/面和多点线/面，请选择两点直线段,如果想求点到多段线的最小距离可以使用点线关系工具", "提示");
NoActive();
}
}
}
}
}
//点点关系，写的看不下去，可使用basepoint简化
if (bool_dd == true)
{
Point p2 = pictureBox1.PointToClient(MousePosition);
if (o == null)
{
o = Funcs.choice(p2.X, p2.Y, (pictureBox1 as PictureBox).Width, (pictureBox1 as PictureBox).Height);
}
else if (o is Realpoint || o is Notepoint)
{
Funcs.Rdd(o, pictureBox1, p2);
NoActive();
}
else
{
MessageBox.Show("请选择两点");
NoActive();
}
}
//点线关系
if (bool_dx == true)
{
Point p2 = pictureBox1.PointToClient(MousePosition);
if (o == null)
{
o = Funcs.choice(p2.X, p2.Y, (pictureBox1 as PictureBox).Width, (pictureBox1 as PictureBox).Height);
}
else if (o is Realpoint || o is Notepoint)
{
Funcs.Rdx(o, pictureBox1, p2);
NoActive();
}
else
{
MessageBox.Show("请选择一点和一条直线");
NoActive();
}
}
//点面关系
if (bool_dm == true)
{
Point p2 = pictureBox1.PointToClient(MousePosition);
if (o == null)
{
o = Funcs.choice(p2.X, p2.Y, (pictureBox1 as PictureBox).Width, (pictureBox1 as PictureBox).Height);
}
else if (o is Realpoint || o is Notepoint)
{
Funcs.Rdm(o, pictureBox1, p2);
NoActive();
}
else
{
MessageBox.Show("请选择一点和一直线面");
NoActive();
}
}
//删除对象
if (bool_del == true)
{
Point p2 = pictureBox1.PointToClient(MousePosition);
object obj = Funcs.choice(p2.X, p2.Y, pictureBox1.Width, pictureBox1.Height);
Funcs.Del(obj, pictureBox1);
NoActive();
this.Cursor = Cursors.Default;
}
//符号绘制
if (fuhao1 == true)
{
Graphics g = pictureBox1.CreateGraphics();
Funcs.Daoxiandian(g, pictureBox1.PointToClient(MousePosition).X, pictureBox1.PointToClient(MousePosition).Y, pictureBox1.Width, pictureBox1.Height);
NoActive();
}
if (fuhao2 == true)
{
Graphics g = pictureBox1.CreateGraphics();
Funcs.Jiaotang(g, pictureBox1.PointToClient(MousePosition).X, pictureBox1.PointToClient(MousePosition).Y, pictureBox1.Width, pictureBox1.Height);
NoActive();
}
}
catch
{
MessageBox.Show("未知错误");
}
}
public static void Rdd(object o, object pictureBox1, Point p2)
{//点与点关系判断
object obj = Funcs.choice(p2.X, p2.Y, (pictureBox1 as PictureBox).Width, (pictureBox1 as PictureBox).Height);
if (o is Realpoint)
{
if (obj is Realpoint)
{
float d = DouglasPeuker.Distance((o as Realpoint).Map_X, (o as Realpoint).Map_Y, (obj as Realpoint).Map_X, (obj as Realpoint).Map_Y);
if (d == 0)
{
MessageBox.Show("目标重合");
}
else
{
MessageBox.Show("相离，选中目标点的地理距离为：" + d.ToString("F4"), "关系显示：");
}
}
else if (obj is Notepoint)
{
float d = DouglasPeuker.Distance((o as Realpoint).Map_X, (o as Realpoint).Map_Y, (obj as Notepoint).Map_X, (obj as Notepoint).Map_Y);
if (d == 0)
{
MessageBox.Show("目标重合");
}
else
{
MessageBox.Show("相离，选中目标点的地理距离为：" + d.ToString("F4"), "关系显示：");
}
}
else if (obj is null || obj is Lineshape)
{
MessageBox.Show("只能判断实体点和注记点的关系", "关系显示：");
}
}
else if (o is Notepoint)
{
if (obj is Realpoint)
{
float d = DouglasPeuker.Distance((o as Notepoint).Map_X, (o as Notepoint).Map_Y, (obj as Realpoint).Map_X, (obj as Realpoint).Map_Y);
if (d == 0)
{
MessageBox.Show("目标重合");
}
else
{
MessageBox.Show("相离，选中目标点的地理距离为：" + d.ToString("F4"), "关系显示：");
}
}
else if (obj is Notepoint)
{
float d = DouglasPeuker.Distance((o as Notepoint).Map_X, (o as Notepoint).Map_Y, (obj as Notepoint).Map_X, (obj as Notepoint).Map_Y);
if (d == 0)
{
MessageBox.Show("目标重合");
}
else
{
MessageBox.Show("相离，选中目标点的地理距离为：" + d.ToString("F4"), "关系显示：");
}
}
else if (obj is null)
{
MessageBox.Show("只能判断实体点和注记点的关系", "关系显示：");
}
}
}
