public void LuuDuongVaDiem(string _diem, string _diemdau, string _diemsau)
{
//Lưu đỉêm
Diem diem = new Diem();
diem.Ten = _diem;
LuuDiem.Add(diem);
//Lưu đường
DuongThang dt = new DuongThang();
Diem diemdau = new Diem();
diemdau.Ten = _diemdau;
dt.DiemDau = diemdau;
Diem diemsau = new Diem();
diemsau.Ten = _diemsau;
dt.DiemCuoi = diemsau;
LuuDuong.Add(dt);
}
public bool KiemTraDuongTonTai(DuongThang dt)
{
foreach (DuongThang duong in duongColl)
{
if (dt.DiemDau.Ten == duong.DiemDau.Ten && dt.DiemCuoi.Ten == duong.DiemCuoi.Ten)
{
return true;
}
}
return false;
}
private void VeDijkstra_MouseDown(object sender, MouseEventArgs e)
{
//Vẽ điểm
if (Dangve == true)
{
Diem diem = new Diem();
diem.A = e.X;
diem.B = e.Y;
diem.Ten = thutu_diem.ToString();
diemColl.Add(diem);
thutu_diem++;
Invalidate();
return;
// Dangve = false;
}
//Xóa điểm
//Vẽ đường
Diem kq = new Diem();
kq = KiemTraDiem_ThuocDiem(e.X, e.Y);
if (kq != null)
{
if (DiemBatDau == "")
{
x1 = kq.A+5;
y1 = kq.B+5;
DiemBatDau = kq.Ten.ToString();
return;
}
if (DiemCuoi == "")
{
x2 = kq.A+5;
y2 = kq.B+5;
DiemCuoi = kq.Ten.ToString();
//Gán đừơng thẳng và đưa vào Coll
DuongThang dt = new DuongThang();
Diem temp = new Diem();
temp.A = x1;
temp.B = y1;
temp.Ten = DiemBatDau;
dt.DiemDau = temp;
Diem temp1 = new Diem();
temp1.A = x2;
temp1.B = y2;
temp1.Ten = DiemCuoi;
dt.DiemCuoi = temp1;
int dodai =(int) Math.Sqrt(Math.Pow((dt.DiemDau.A - dt.DiemCuoi.A),2) + Math.Pow((dt.DiemDau.B - dt.DiemCuoi.B),2));
dt.ChieuDai = dodai;
if(KiemTraDuongTonTai(dt)!=true &&DiemBatDau!=DiemCuoi)
duongColl.Add(dt);
//Nếu là đường vô hướng
if (CoHuong == false)
{
dt = new DuongThang();
temp = new Diem();
temp1 = new Diem();
temp.A = x1;
temp.B = y1;
temp.Ten = DiemCuoi;
dt.DiemDau = temp;
temp1.A = x2;
temp1.B = y2;
temp1.Ten = DiemBatDau;
dt.DiemCuoi = temp1;
dodai = (int)Math.Sqrt(Math.Pow((dt.DiemDau.A - dt.DiemCuoi.A), 2) + Math.Pow((dt.DiemDau.B - dt.DiemCuoi.B), 2));
dt.ChieuDai = dodai;
if (KiemTraDuongTonTai(dt) != true && DiemBatDau != DiemCuoi)
duongColl.Add(dt);
}
Invalidate();
DiemBatDau = "";
DiemCuoi = "";
}
}
}
public void Add(DuongThang duongthang)
{
List.Add(duongthang);
}
