Practical WPF Charts and Graphics 笔记

Practical WPF Charts and Graphics Note_00 文书理解笔记第一篇 关于小节Creating Perpendicular Lines代码理解注释 Vector v1 = pt1 - pt2; 应为： Vector v21 = pt1 - pt2; 例如： Vector v12 = new Point(x2, y2) – new Point(x1, y1); v2

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