ghostscript BoundingBox值 [英] ghostscript BoundingBox values

问题描述

我只是问自己，这些bbox值的打印方式是:

I'm just asking myself, what are those bbox values printed out by:

gs -dSAFER -dNOPAUSE -dBATCH -sDEVICE=bbox myfile.pdf

%%BoundingBox: 46 911 1668 4537
%%HiResBoundingBox: 46.080002 911.520035 1667.520064 4536.000173

左上角X，左上角Y ....?

top-left-X, top-left-Y, ....?

这些值(1/72英寸)的大小是多少?

And what's the measurement of those values (1/72")?

感谢您的帮助

推荐答案

这些值在PostScript点"中给出:

These values are given in PostScript "points":

72 points == 1 inch

所以是的，测量值是1/72英寸...

so yes, the measurement value is 1/72''...

需要将这四个值读取为两对坐标，以描述包围边界框的矩形的左下角和右上角点.

The four values need to be read as two pairs of coordinates describing the lower left and the upper right corner points of a rectangle enclosing the bounding box.

PostScript坐标系的原点在左下角.

The PostScript coordinate system has its origin in the lower left corner.

46 911部分用于左下角点:距 right 左边缘的距离为46 points ，而从处的距离为911 points .底部边缘.

The 46 911 part is for the lower left corner point: 46 points distance from the right left edge and 911 points from the bottom edge.

1668 4537部分用于右上角的点:距右左边缘的距离为1668 points ，而距右左边缘的距离为4537 points .底部边缘.

The 1668 4537 part is for the upper right corner point: 1668 points distance from the right left edge and 4537 points from the bottom edge.

(已纠正了一些偏瘫的错误，感谢Scolytus的发现.)

(Corrected a somewhat legasthenic error... Thanks to Scolytus for spotting it.)

这篇关于ghostscript BoundingBox值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！