LAB18 การเขียนโปรแกรมกราฟ2

private void Form1_Paint(object sender, PaintEventArgs e)
{
Pen blackPen = new Pen(Color.Black, 3);
Point point1 = new Point(100, 100);
Point point2 = new Point(200, 100);
e.Graphics.DrawLine(blackPen, point1, point2);
blackPen.Dispose();
}

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Pen pen = new Pen(Color.Red);
e.Graphics.DrawLine(pen, 10, 50, 220, 50);
pen = new Pen(Color.Green, 2);
pen.DashStyle = DashStyle.DashDot;
e.Graphics.DrawLine(pen, 10, 80, 220, 80);
pen = new Pen(Brushes.DeepSkyBlue, 4);
e.Graphics.DrawLine(pen, 10, 120, 220, 120);
pen.Dispose();

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Pen[] objPen = new Pen[11];
for (int i = 0; i != 11; i++)
{
objPen[i] = new Pen(Color.Blue, 9);
}
objPen[0].EndCap = LineCap.AnchorMask;
objPen[2].EndCap = LineCap.ArrowAnchor;
objPen[3].EndCap = LineCap.DiamondAnchor;
objPen[4].EndCap = LineCap.Flat;
objPen[5].EndCap = LineCap.NoAnchor;
objPen[6].EndCap = LineCap.Round;
objPen[7].EndCap = LineCap.RoundAnchor;
objPen[8].EndCap = LineCap.Square;
objPen[9].EndCap = LineCap.SquareAnchor;
objPen[10].EndCap = LineCap.Triangle;
for (int i = 0; i != 11; i++)
{
e.Graphics.DrawLine(objPen[i], 10, 10+20*i, 200, 10+20*i);
objPen[i].Dispose();
}

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{
Pen pen = new Pen(Color.Green);
Point[] pt = {new Point(20,200), new Point(50,20),
new Point(100,100), new Point(150,20), new Point(200,200)
};
e.Graphics.DrawCurve(pen, pt);
pen.Dispose();

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{
GraphicsPath gp = new GraphicsPath();
gp.AddCurve(new Point[]
{
new Point(100,50),
new Point(105,40),
new Point(120,40),
new Point(130,65),
new Point(100,100)
}, 0.5f);
gp.AddCurve(new Point[]
{
new Point(100,100),
new Point(70,65),
new Point(80,40),
new Point(95,40),
new Point(100,50)
}, 0.5f);
e.Graphics.DrawPath(Pens.Red, gp);
}

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Pen mypen = new Pen(Color.Blue);
e.Graphics.DrawRectangle(mypen, 10, 120, 100, 100);
Rectangle rect = new Rectangle(10, 10, 100, 100);
e.Graphics.DrawRectangle(mypen, rect);

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{

Pen curPen = new Pen(Color.Blue, 3);
Rectangle[] rect = { new Rectangle (20, 20, 120, 20),
new Rectangle (20, 50, 120, 30),
new Rectangle (20, 90, 120, 140),
new Rectangle (20, 140, 120, 60),
};
e.Graphics.DrawRectangles(curPen, rect);

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Rectangle rect = new Rectangle(10, 10, 120, 100);
e.Graphics.DrawEllipse(Pens.Cyan, rect);
Rectangle rect1 = new Rectangle(10, 120, 100, 100);
e.Graphics.FillEllipse(Brushes.DeepPink, rect1);
Rectangle rect2 = new Rectangle(150, 10, 120, 100);
e.Graphics.DrawEllipse(Pens.DarkSlateBlue, rect2);
Rectangle rect3 = new Rectangle(120, 120, 100, 100);
e.Graphics.FillEllipse(Brushes.Firebrick, rect3);

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Pen penEllipse = new Pen(Color.Brown);
penEllipse.DashStyle = DashStyle.Dash;
e.Graphics.DrawEllipse(penEllipse, 20, 20, 200, 150);
Pen penArc = new Pen(Color.Magenta, 2);
e.Graphics.DrawArc(penArc, 20, 20, 200, 150, 45, 180);

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Pen penEllipse = new Pen(Color.Brown);
penEllipse.DashStyle = DashStyle.Dash;
e.Graphics.DrawEllipse(penEllipse, 20, 20, 200, 150);
Pen penPie = new Pen(Color.Magenta, 2);
e.Graphics.DrawPie(penPie, 20, 20, 200, 150, 45, 90);
Pen penPie1 = new Pen(Color.BlueViolet, 2);
e.Graphics.DrawPie(penPie1, 20, 20, 200, 150, 135, 45);

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GraphicsPath gpath = new GraphicsPath();
gpath.AddEllipse(46, 4, 28, 28);
gpath.AddLine(36, 32, 84, 32);
gpath.AddLine(100, 80, 88, 84);
gpath.AddLine(76, 50, 74, 84);
gpath.AddLine(90, 150, 74, 84);
gpath.AddLine(60, 100, 46, 150);
gpath.AddLine(32, 150, 46, 84);
gpath.AddLine(44, 50, 32, 84);
gpath.AddLine(20, 80, 36, 32);
e.Graphics.FillPath(Brushes.Blue, gpath);