public static Bitmap DrawTree(int canvasWidth, int canvasHeight)
{
Bitmap canvas = new Bitmap(canvasWidth, canvasHeight);
Graphics g = Graphics.FromImage(canvas);
g.Clear(Color.White);
//рисование рёбер
ENode t = Edges.head;
while (t != null)
{
g.DrawLine(Pens.Black, t.p1, t.p2);
t = t.next;
}
// && t.next != null
//рисование вершин
t = Vert.head;
while (t != null)
{
Rectangle r = new Rectangle(t.p1.X - RAD, t.p1.Y - RAD, 2 * RAD, 2 * RAD);
g.FillEllipse(Brushes.Blue, r);
t = t.next;
}
// && t.next != null
return(canvas);
}
//рисование
public static Bitmap DrawTree(int canvasWidth, int canvasHeight)
{
Bitmap canvas = new Bitmap(canvasWidth, canvasHeight);
Graphics g = Graphics.FromImage(canvas);
g.Clear(Color.White);
//рисование рёбер
ENode t = Edges.head;
while (t != null)
{
g.DrawLine(Pens.Black, t.p1, t.p2);
t = t.next;
}
//рисование вершин и индексов
t = Vert.head;
while (t != null)
{
Rectangle r = new Rectangle(t.p1.X - RAD, t.p1.Y - RAD, 2 * RAD, 2 * RAD);
g.FillEllipse(Brushes.DarkGreen, r);
g.DrawString(t.index.ToString(), SystemFonts.DefaultFont, Brushes.White, r, new StringFormat()
{
Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center
});
t = t.next;
}
return(canvas);
}
public void Add(Point P1, Point P2)
{
if (head == null)
{
head = tail = new ENode(P1, P2);
}
else
{
tail.next = new ENode(P1, P2);
tail = tail.next;
}
}
public EList()
{
head = tail = null;
}
