Practical WPF Charts and Graphics 筆記

Practical WPF Charts and Graphics Note_00 文書理解筆記第一篇 關於小節Creating Perpendicular Lines代碼理解註釋 Vector v1 = pt1 - pt2; 應爲： Vector v21 = pt1 - pt2; 例如： Vector v12 = new Point(x2, y2) – new Point(x1, y1); v2

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