Image img = Image.FromFile(path); using (var g = Graphics.FromImage(img)) { g.Transform = new System.Drawing.Drawing2D.Matrix(1, 0, 0, -1, 0, 0);//Y轴向上为正,X向右为正 g.TranslateTransform(ox, oy, System.Drawing.Drawing2D.MatrixOrder.Append);//平移坐标原点 }
Image img = Image.FromFile(path); using (var g = Graphics.FromImage(img)) { g.Transform = new System.Drawing.Drawing2D.Matrix(1, 0, 0, -1, 0, 0);//Y轴向上为正,X向右为正 g.TranslateTransform(ox, oy, System.Drawing.Drawing2D.MatrixOrder.Append);//平移坐标原点 }