如何勾勒出一个地区？ [英] How to outline a region?

问题描述

我想我可以手动概述一个区域，但有没有现成的方法？

我需要一个现成的方法。

如果我们有这样的方法，我可以用它来按颜色边界勾勒出一张图片？

I think i can outline a region manually, but is there a ready way?
I need a ready method.
If we have such a method, can i use that to outline a picture by color boundaries?

private void Draw(object sender, System.Windows.Forms.PaintEventArgs e)
{
    GraphicsPath path = new GraphicsPath();

    path.AddRectangle(new Rectangle(50, 50, 100, 20));
    path.AddEllipse(new Rectangle(50, 50, 50, 50));

    Region reg = new Region(path);
}

推荐答案

.NET Framework中没有自动勾画图像的方法为你。

There is no method in the .NET Framework that will "automatically" outline an image for you.

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