春天像在C#中绘图

问题描述

如何使用c#绘图类绘制类似弹簧的形状

How to draw the spring like shape using c# drawing class

替代文本http://img812.imageshack.us/img812/373/spring .jpg

推荐答案

与C#相比，这更多的是数学问题.您想要为要绘制的曲线导出参数方程.

This is more of a math problem than a C# one. What you want is to derive a Parametric equation for the curve you wish to draw.

通过该操作，以一定的间隔和一定的步长，用参数方程式的值填充Point对象数组(步长越小，最终图形看起来就越像实际形状).然后，您可以使用g.DrawLines( MSDN:DrawLines )绘制表面上的实际曲线.

With that go and fill an array of Point objects with values for the parametric equation on a certain interval with a certain step (the smaller the step the more the final drawing will look like the actual shape). Then you can use g.DrawLines (MSDN: DrawLines) to draw the actual curve on a surface.

您可以通过修改Pen对象的参数来编辑线的宽度，颜色和其他属性.

You can edit the width, color and other properties of the line by modifying parameters of the Pen object.

您的实际代码如下:

void DrawSpring (Graphics g)
{
    List<Point> points = new List<Point>();

    double step = 0.01;
    for(double t = -2; t < 2; t += step)
    {
        Point p = new Point();
        p.X = XPartOfTheEquation(t);
        p.Y = YPartOfTheEquation(t);

        points.Add(p);
     }

    g.DrawLines(new Pen(new SolidBrush(Color.Black), 2f), points.ToArray());
}

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