Question

如何画一条连续的曲线用Path 画一条连续的曲线.我想知道曲线每点的坐标怎么计算,有什么规律?有点代码最好

Answer 1

private void Form1_Paint(object sender,System.Windows.Forms.PaintEventArgs e)

{

// Create an array of points for the curve in the second figure.

Point[] points = {

new Point(40,60),

new Point(50,70),

new Point(30,90)};

GraphicsPath path = new GraphicsPath();

path.StartFigure(); // Start the first figure.

path.AddArc(175,50,50,50,0,-180);

path.AddLine(100,0,250,20);

// First figure is not closed.

path.StartFigure(); // Start the second figure.

path.AddLine(50,20,5,90);

path.AddCurve(points,3);

path.AddLine(50,150,150,180);

path.CloseFigure(); // Second figure is closed.

e.Graphics.DrawPath(new Pen(Color.FromArgb(255,255,0,0),2),path);

}

前边要加using System.Drawing.Drawing2D;

这段程序包含一个由直线_曲线和形状创建的图形,自己领会一下吧