PostScript's coordinate system puts the origin (0, 0) at the lower left corner of the page, and contains 72 points per inch.
PostScript的坐标系统将把原点(0,0)放置在页面的左下角，并且每英寸包含72个点。
Page coordinates refer to the coordinate system used by a drawing surface, such as a form or control.
页面坐标系是指绘图图面(如窗体或控件)使用的坐标系。
Page coordinates refer to the coordinate system used by a drawing surface, such as a form or a control.
页面坐标系是指绘图图面（如窗体或控件）使用的坐标系。
Page coordinates refer to the coordinate system used by a drawing surface, such as a form or a control.
页面坐标系是指绘图图面（如窗体或控件）使用的坐标系。
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