覆盖两个postscript文件（命令行方法）？ [英] Overlay two postscript files (command line approach)?

查看：267 发布时间：2016/12/20 13:24:20 linux command-line postscript

本文介绍了覆盖两个postscript文件（命令行方法）？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我知道类似问题之前已经回答过：

，在裁剪的标志下启动的 gs 窗口不能设置为之后显示。

重叠的连结.ps档案内容

查看这些参考资料：

Ghostscript叠加连接的后脚本文件 - comp.lang.postscript

Re：合并postscript文件 - comp.lang.postscript ;

在合并时删除pagethrow -

...我猜，原则上，应该可以连接两个postscript文件的文件内容;并且如果在合并的文件中只有一个 showpage 命令 - 则原则上应该获得这两个的覆盖（？！）。但是，我试过，我不能真正让它工作。

如果这是可能的，我想以某种方式只是复制/粘贴postscript文件内容从而避免文档尺寸/大小/分辨率的任何问题），然后可能使用 translate postscript命令（请参阅 Postscript Editing in Gnuplot ）来调整徽标的位置。在 evince 中打开'overlaid'（合并的）.ps将在每次 translate 参数时刷新文档显示

< / p>

$ b b

但是，我可以预见一些问题：一个，图形（ tmp-Front.ps ）包含：

  %% BoundingBox：0 0 596 843 
 %% DocumentMedia：A4 595 842 0（）（）
 ... 
 0.0072 0.0072 scale 
 ... 
 30085 54415 moveto 
 ...

... while logo.ps 包含：

  ％BoundingBox：0 0 31 13 
 ... 
 %% DocumentMedia：11x4mm 31 13 0（）（）
 ... 
 25.539 9.536 m（oveto）... 
 ...

...因此有两个主要区别：

文件大小与文件不同

缩放（或者说分辨率/坐标系）相同

由于我无法获取文件内容的连接 - 我不知道这些差异是否对叠加有影响...我肯定希望他们以某种方式独立地渲染;和 translate 只会帮助正确设置其相对位置：）

那么 - 如果我想通过连接postscript文件内容来实现一个叠加层，我该怎么办？如果这太麻烦了 - 我如何使用 ghostscript （或任何其他）工具，以设置覆盖？

非常感谢您提供任何答案，

干杯！

作为参考，以下是所提及的postscript文件的副本（因为它们不是太大）：

tmp-Front.ps a>：

 ％！PS-Adobe-3.0 
 %%创建者：PCBNEW-PS 
％ ％CreationDate：Thu Mar 22 09:50:52 2012 
 %%标题：/tmp-Front.ps 
 %%页数：1 
 %% PageOrder：Ascend 
 %% BoundingBox：0 0 596 843 
 %% DocumentMedia：A4 595 842 0（）
 %%方向：横向
 %% EndComments 
 %%页面：1 1 
 / line {
 newpath 
 moveto 
 lineto 
 stroke 
} bind def 
 / cir0 {newpath 0 360 arc stroke} bind def 
 / cir1 {newpath 0 360 arc gsave fill grestore stroke} bind def 
 / cir2 {newpath 0 360 arc gsave fill grestore stroke} bind def 
 / arc0 {newpath arc stroke} bind def 
 / arc1 {newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke} bind def 
 / arc2 {newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke} bind def 
 / poly0 {stroke} bind def 
 / poly1 {closepath gsave fill grestore stroke} bind def 
 / poly2 {closepath gsave fill grestore stroke} bind def 
 / rect0 {rectstroke} bind def 
 / rect1 {rectfill } bind def 
 / rect2 {rectfill} bind def 
 / linemode0 {0 setlinecap 0 setlinejoin 0 setlinewidth} bind def 
 / linemode1 {1 setlinecap 1 setlinejoin} bind def 
 / {[50 50] 0 setdash} bind def 
 / solidline {[] 0 setdash} bind def 
 gsave 
 0.0072 0.0072 scale 
 linemode1 
 82670 0 translate 90 rotate 
 60 setlinewidth 
 60 setlinewidth 
 newpath 
 30085 54415 moveto 
 30085 52585 lineto 
 31915 52585 lineto 
 31915 54415 lineto 
 30085 54415 lineto 
 poly1 
 newpath 
 87950 54930 moveto 
 32094 54930 lineto 
 32094 54474 lineto 
 32094 54415 lineto 
 32094 52525 lineto 
 32071 52470 lineto 
 32029 52428 lineto 
 31974 52406 lineto 
 31915 52406 lineto 
 30025 52406 lineto 
 29970 52429 lineto 
 29928 52471 lineto 
 29906 52526 lineto 
 29906 52585 lineto 
 29906 54475 lineto 
 29929 54530 lineto 
 29971 54572 lineto 
 30026 54594 lineto 
 30085 54594 lineto 
 31975 54594 lineto 
 32030 54571 lineto 
 32072 54529 lineto 
 32094 54474 lineto 
 32094 54930 lineto 
 28300 54930 lineto 
 28300 17800 lineto 
 87950 17800 lineto 
 87950 54930 lineto 
 poly1 
 100 setlinewidth 
 newpath 
 87950 54930 moveto 
 32094 54930 lineto 
 32094 54474 lineto 
 32094 54415 lineto 
 32094 52525 lineto 
 32071 52470 lineto 
 32029 52428 lineto 
 31974 52406 lineto 
 31915 52406 lineto 
 30025 52406 lineto 
 29970 52429 lineto 
 29928 52471 lineto 
 29906 52526 lineto 
 29906 52585 lineto 
 29906 54475 lineto 
 29929 54530 lineto 
 29971 54572 lineto 
 30026 54594 lineto 
 30085 54594 lineto 
 31975 54594 lineto 
 32030 54571 lineto 
 32072 54529 lineto 
 32094 54474 lineto 
 32094 54930 lineto 
 28300 54930 lineto 
 28300 17800 lineto 
 87950 17800 lineto 
 87950 54930 lineto 
 poly0 
 1 1 1 setrgbcolor 
 60 setlinewidth 
 31000 53500 170 cir1 
 0 0 0 setrgbcolor 
 showpage 
 grestore 
 %% EOF

logo.ps ：

 ％！PS-Adobe-3.0 
 %%创作者：cairo 1.10.2（http://cairographics.org）
 %% CreationDate：Thu 3月22日10:07:46 2012 
 %%页数：1 
 %% BoundingBox：0 0 31 13 
 %% DocumentData：Clean7Bit 
 %% LanguageLevel：2 
 %% DocumentMedia：11x4mm 31 13 0（）
 %% EndComments 
 %% BeginProlog 
 / languagelevel其中
 {pop languagelevel} {1} ifelse 
 2 lt {/ Helvetica findfont 12 scalefont setfont 50 500 moveto 
（此打印作业需要一个PostScript语言2级打印机。）show 
 showpage quit} if 
 / q {gsave} bind def 
 / Q {grestore} bind def 
 / cm {6 array astore concat} bind def 
 / w {setlinewidth} bind def 
 / J {setlinecap} bind def 
 / j {setlinejoin} bind def 
 / M {setmiterlimit} bind def 
 / d {setdash} bind def 
 / m {moveto} bind def 
 / l {lineto} bind def 
 / c {curveto} bind def 
 / h {closepath} bind def 
 / re {exch dup neg 3 1 roll 5 3 roll moveto 0 rlineto 
 0 exch rlineto closepath} bind def 
 / S {stroke} bind def 
 / f {fill} bind def 
 / f * {eofill} bind def 
 / n {newpath} 
 / W {clip} bind def 
 / W * {eoclip} bind def 
 / BT {} bind def 
 / ET {} bind def 
 / {pop globaldict /？pdfmark / exec load put} 
 {globaldict begin /？pdfmark / pop load def / pdfmark 
 / cleartomark load def end} ifelse 
 / BDC {mark 3 1 roll / BDC pdfmark} bind def 
 / EMC {mark / EMC pdfmark} bind def 
 / cairo_store_point {/ cairo_point_y exch def / cairo_point_x exch def} def 
 / Tj {show currentpoint cairo_store_point} bind def 
 / TJ {
 {
 dup 
 type / stringtype eq 
 {show} {-0.001 mul 0 cairo_font_matrix dtransform rmoveto} ifelse 
} forall 
 currentpoint cairo_store_point 
} bind def 
 / cairo_selectfont {cairo_font_matrix aload pop pop pop 0 0 6 array astore 
 cairo_font exch selectfont cairo_point_x cairo_point_y moveto} bind def 
 / Tf {pop / cairo_font exch def / cairo_font_matrix其中
 {pop cairo_selectfont} if} bind def 
 / Td {matrix translate cairo_font_matrix matrix concatmatrix dup 
 / cairo_font_matrix exch def dup 4 get exch 5 get cairo_store_point 
 / cairo_font其中{pop cairo_selectfont} if} bind def 
 / Tm {2 copy 8 2 roll 6 array astore / cairo_font_matrix exch def 
 cairo_store_point / cairo_font其中{pop cairo_selectfont} if} bind def 
 / g {setgray} bind def 
 / rg {setrgbcolor} bind def 
 / d1 {setcachedevice} bind def 
 %% EndProlog 
 %%页面：1 1 
％ ％BeginPageSetup 
 %% PageMedia：11x4mm 
 %% PageBoundingBox：0 0 31 13 
 %% EndPageSetup 
q 0 0 31 13 rectclip q 
 1 g 
 25.539 9.536 m 25.539 7.567 l 27.227 7.567 l 27.227 3.817 l 27.227 
 3.055 27.211 2.606 27.18 2.473 c 27.152 2.348 27.078 2.243 26.961 2.161 
c 26.848 2.087 26.707 2.052 26.539 2.052 c 26.324 2.052 25.992 2.13 
 25.555 2.286 c 25.336 0.364 l 25.922 0.118 26.574 -0.011 27.289 -0.011 
c 27.738 -0.011 28.145 0.063 28.508 0.208 c 28.863 0.36 29.125 0.559 
 29.289 0.802 c 29.457 1.04 29.574 1.364 29.633 1.77 c 29.688 2.048 
 29.711 2.63 29.711 3.505 c 29.711 7.567 l 30.852 7.567 l 30.852 9.536 l 
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 18.535 3.177 m 16.082 2.77 l 16.395 1.864 16.898 1.169 17.582 0.692 c 
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 23.738 1.583 c 24.355 2.434 24.66 3.509 24.66 4.802 c 24.66 6.352 
 24.262 7.567 23.457 8.442 c 22.648 9.313 21.621 9.755 20.379 9.755 c 
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 15.941 4.161 c 22.129 4.161 l 22.121 3.43 21.926 2.86 21.551 2.458 c 
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 2.161 c 18.875 2.368 18.672 2.708 18.535 3.177 ch 
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 19.742 7.864 20.238 7.864 c 20.781 7.864 21.227 7.665 21.566 7.27 c 
 21.922 6.884 22.098 6.352 22.098 5.677 ch 
 15.02 2.864 m 12.535 3.255 l 12.434 2.774 12.219 2.407 11.895 2.161 c 
 11.574 1.911 11.125 1.786 10.551 1.786 c 9.906 1.786 9.422 1.899 9.098 
 2.13 c 8.891 2.294 8.785 2.512 8.785 2.786 c 8.785 2.97 8.844 3.13 
 8.957 3.255 c 9.082 3.368 9.359 3.477 9.785 3.583 c 11.777 4.016 13.039 
 4.419 13.566 4.786 c 14.309 5.282 14.676 5.989 14.676 6.895 c 14.676 
 7.696 14.359 8.372 13.723 8.927 c 13.078 9.477 12.09 9.755 10.754 9.755 
c 9.477 9.755 8.527 9.544 7.91 9.13 c 7.289 8.712 6.855 8.095 6.613 
 7.286 c 8.941 6.848 l 9.047 7.212 9.242 7.489 9.52 7.677 c 9.793 7.872 
 10.188 7.973 10.707 7.973 c 11.355 7.973 11.82 7.884 12.098 7.708 c 
 12.285 7.571 12.379 7.403 12.379 7.208 c 12.379 7.028 12.297 6.876 
 12.129 6.755 c 11.914 6.587 11.145 6.352 9.832 6.052 c 8.523 5.759 
 7.598 5.391 7.066 4.958 c 6.559 4.52 6.301 3.907 6.301 3.13 c 6.301 
 2.274 6.664 1.532 7.379 0.911 c 8.09 0.294 9.148 -0.011 10.551 -0.011 c 
 11.824 -0.011 12.828 0.247 13.566 0.77 c 14.309 1.29 14.793 1.989 15.02 
 2.864 ch 
 0.066 9.536 m 0.066 7.567 l 1.754 7.567 l 1.754 3.817 l 1.754 3.055 
 1.738 2.606 1.707 2.473 c 1.68 2.348 1.605 2.243 1.488 2.161 c 1.375 
 2.087 1.234 2.052 1.066 2.052 c 0.852 2.052 0.52 2.13 0.082 2.286 c 
 -0.137 0.364 l 0.449 0.118 1.102 -0.011 1.816 -0.011 c 2.266 -0.011 
 2.672 0.063 3.035 0.208 c 3.391 0.36 3.652 0.559 3.816 0.802 c 3.984 
 1.04 4.102 1.364 4.16 1.77 c 4.215 2.048 4.238 2.63 4.238 3.505 c 4.238 
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 0.066 9.536 mf 
 QQ 
显示页面
 %%预告片
 %% EOF

href =http://stackoverflow.com/a/9833901/277826> luser droog 的答案;如果我尝试打开 evince 中写的 combo.ps ，我会得到：

  $ evince combo.ps 
 invalidfileaccess -9

这可能与＃414002 - gs相关-dSAFER：/ invalidfileaccess与run运算符 - Debian Bug报告日志 ...如果我尝试在开始时添加PostScript标题％！我得到：

  $ nano combo.ps＃added％！开始时
 $ evince combo.ps 
未定义-21 
未定义-21

$ b b

我也试过运行 ps2ps - 这是出来的：

  $ ps2ps combo.ps comboB.ps 
错误：/未定义在--load-- 
操作数堆栈：
 Oldshowpage 
执行堆栈：
％interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2％stopped_push --nostringval-- --nostringval-- --nostringval-- false 1％stopped_push 1910 1 3％oparray_pop 1909 1 3％oparray_pop 1893 1 3％oparray_pop 1787 1 3％oparray_pop --nostringval--％errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2％stopped_push --nostringval-- 
字典堆栈：
 --dict：1159/1684（ro）（G） -  --dict：0/20（G） -  --dict：77/200（L） -  
当前分配模式是本地
当前文件位置为30 
 GPL Ghostscript 9.02：不可恢复的错误，退出代码1

run 运算符。这是相同的事情，但有点少壳工作。限制是-dSAFER选项（在大多数Distiller安装中默认为ON）禁用运行运算符。

combo.ps：

  / Oldshowpage / showpage load def 
 / showpage {} def 
 gsave 
（tmp-Front.ps）run 
 grestore 
％额外缩放和转换以放置图形？ 
（logo.ps）run 
 Oldshowpage

I'm aware that similar questions have been answered here before:

... however, as they don't directly answer my specific problem, I'll try asking again.

I would like to know, how I can overlay two postscript files: one - a logo:

logo.ps

... on top of the other - a graphic background:

tmp-Front.ps

.... using a command line approach in Linux.

It is of importance here, that the graphic background preserves its original contents to the greatest extent possible. Therefore, I'd probably be happiest if I could somehow concatenate the two original postscript file contents unchanged (see below) - but other than that, I'd like to know how command-line tools like ghostscript could be used for the purpose.

The problem - logo on top of PCB .ps printout

Here is the problem in more detail - I want to add a logo on top of a PCB board print. I use kicad to develop the PCB print; once done, I export a postscript document with the individual layers. Usually, I want to have the front copper layer "mirrored"; I have often experimented with loading the .ps output into, say, inkscape, and then trying to do a mirroring there. Using inkscape was also convenient, because one can easily add a logo there (and then mirror the print and the logo together).

However, using inkscape to process postscript output is an expencive operation (because it takes a while for inkscape to load, and do the mirroring, and the saving)... Although, the main show stopper here is that: after processing, some of the dimensions may be slightly changed in the output file by inkscape (and it makes a lot of difference, when the target is printing of tracks less than a millimeter wide).

So, given that kicads "Plot" command has an option for mirroring - it is, of course, much better for me to "mirror" the layer print directly from kicads "Plot" command; the output is again a postscript file. tmp-Front.ps is an example of such a (mirrored) postscript file. Note that typically, the "copper" part is filled with black - and I'd basically like to have a white logo on top of it.

Now, since this print is already "mirrored" - if I want to add a logo on top of it, I better have the logo mirrored as well. So I fire up inkscape; and:

add a text for the logo;
set up via Document Properties:
- that the document size matches the logo size, and
- that the document should have a black background
Then change the logo text to have white fill;
do Object/Flip Horizontal on the logo text; and then
do File/Save a Copy;
- choose PostScipt (*.ps) as output;
- on the dialog choose PostScript level 2, and
- select "Convert text to paths" before exporting.

This is how logo.ps linked above was generated (note that - for these kind of small logos: without 'text to paths', the .ps file (with fonts) can be up to 20 kB; as opposed to 5 kB for paths only).

One problem, though, is that postscript doesn't really support something like a "document background" color - apparently you need to define a filled rectangle yourself:

... therefore if you open logo.ps, you will not see anything - since it contains white letters on white background.

Viewers

If in logo.ps, the 1 g line is replaced with 0.5 g; the logo becomes gray (and visible), and here it is rendered under evince, gs raw viewer, and gv:

Here is the same comparison for tmp-Front.ps:

Notably, the raw ghostscript viewer ignores bounding box and page orientation - and even more problematic is, if you use Ubuntu Gnome on a netbook, then the top and bottom bar may cut a bit of the ghostscript viewer window - enough so that the logo in bottom left corner is invisible; and since "... the raw ghostscript viewer gs ... has no real user interface", a gs window which started up with the logo cropped, cannot be set to show it afterwards.

Concatenating .ps file contents for overlay

By looking at these references:

... I'm guessing that, in principle, it should be possible to concatenate the file contents of two postscript files; and if there is only a single showpage command in the merged file - then, in principle, one should obtain an overlay (?!) of the two. However, I tried that, and I cannot really get it to work.

If this is possible, I'd like to somehow just copy/paste the postscript file contents (and thereby avoid any problems with document dimensions/sizes/resolutions) - and then possibly use the translate postscript command (see Postscript Editing in Gnuplot) to adjust the position of the logo. Having the 'overlaid' (merged) .ps opened in evince, would refresh the document display each time the translate parameters are changed in a text editor - so it should be relatively easy to handle the logo positioning in that way.

However, I can foresee some problems here too: for one, the graphic (tmp-Front.ps) contains:

%%BoundingBox: 0 0 596 843
%%DocumentMedia: A4 595 842 0 () ()
...
0.0072 0.0072 scale
...
30085 54415 moveto
...

... while logo.ps contains:

%%BoundingBox: 0 0 31 13
...
%%DocumentMedia: 11x4mm 31 13 0 () ()
...
25.539 9.536 m(oveto) ...
...

... thus there are two main differences:

Document size is not the same for the files
Scale (or rather resolution/coordinate system) is not the same either

Since I couldn't get concatenation of file contents to work at all - I'm not really sure if these differences would have an influence on the overlay ... I'd certainly hope that they are somehow rendered independently; and the translate would just help to properly set up their relative position :)

So - how would I go about, if I wanted to achieve an overlay by concatenating postscript file contents? And if that is too troublesome - how could I use a tool such as ghostscript (or any other), in order to set up an overlay?

Many thanks in advance for any answers,
Cheers!

For reference, here are copies of the mentioned postscript files (as they are not too big):

tmp-Front.ps:

%!PS-Adobe-3.0
%%Creator: PCBNEW-PS
%%CreationDate: Thu Mar 22 09:50:52 2012
%%Title: /tmp-Front.ps
%%Pages: 1
%%PageOrder: Ascend
%%BoundingBox: 0 0 596 843
%%DocumentMedia: A4 595 842 0 () ()
%%Orientation: Landscape
%%EndComments
%%Page: 1 1
/line {
    newpath
    moveto
    lineto
    stroke
} bind def
/cir0 { newpath 0 360 arc stroke } bind def
/cir1 { newpath 0 360 arc gsave fill grestore stroke } bind def
/cir2 { newpath 0 360 arc gsave fill grestore stroke } bind def
/arc0 { newpath arc stroke } bind def
/arc1 { newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke } bind def
/arc2 { newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke } bind def
/poly0 { stroke } bind def
/poly1 { closepath gsave fill grestore stroke } bind def
/poly2 { closepath gsave fill grestore stroke } bind def
/rect0 { rectstroke } bind def
/rect1 { rectfill } bind def
/rect2 { rectfill } bind def
/linemode0 { 0 setlinecap 0 setlinejoin 0 setlinewidth } bind def
/linemode1 { 1 setlinecap 1 setlinejoin } bind def
/dashedline { [50 50] 0 setdash } bind def
/solidline { [] 0 setdash } bind def
gsave
0.0072 0.0072 scale
linemode1
82670 0 translate 90 rotate
60 setlinewidth
60 setlinewidth
newpath
30085 54415 moveto
30085 52585 lineto
31915 52585 lineto
31915 54415 lineto
30085 54415 lineto
poly1
newpath
87950 54930 moveto
32094 54930 lineto
32094 54474 lineto
32094 54415 lineto
32094 52525 lineto
32071 52470 lineto
32029 52428 lineto
31974 52406 lineto
31915 52406 lineto
30025 52406 lineto
29970 52429 lineto
29928 52471 lineto
29906 52526 lineto
29906 52585 lineto
29906 54475 lineto
29929 54530 lineto
29971 54572 lineto
30026 54594 lineto
30085 54594 lineto
31975 54594 lineto
32030 54571 lineto
32072 54529 lineto
32094 54474 lineto
32094 54930 lineto
28300 54930 lineto
28300 17800 lineto
87950 17800 lineto
87950 54930 lineto
poly1
100 setlinewidth
newpath
87950 54930 moveto
32094 54930 lineto
32094 54474 lineto
32094 54415 lineto
32094 52525 lineto
32071 52470 lineto
32029 52428 lineto
31974 52406 lineto
31915 52406 lineto
30025 52406 lineto
29970 52429 lineto
29928 52471 lineto
29906 52526 lineto
29906 52585 lineto
29906 54475 lineto
29929 54530 lineto
29971 54572 lineto
30026 54594 lineto
30085 54594 lineto
31975 54594 lineto
32030 54571 lineto
32072 54529 lineto
32094 54474 lineto
32094 54930 lineto
28300 54930 lineto
28300 17800 lineto
87950 17800 lineto
87950 54930 lineto
poly0
1 1 1 setrgbcolor
60 setlinewidth
31000 53500 170 cir1
0 0 0 setrgbcolor
showpage
grestore
%%EOF

logo.ps:

%!PS-Adobe-3.0
%%Creator: cairo 1.10.2 (http://cairographics.org)
%%CreationDate: Thu Mar 22 10:07:46 2012
%%Pages: 1
%%BoundingBox: 0 0 31 13
%%DocumentData: Clean7Bit
%%LanguageLevel: 2
%%DocumentMedia: 11x4mm 31 13 0 () ()
%%EndComments
%%BeginProlog
/languagelevel where
{ pop languagelevel } { 1 } ifelse
2 lt { /Helvetica findfont 12 scalefont setfont 50 500 moveto
  (This print job requires a PostScript Language Level 2 printer.) show
  showpage quit } if
/q { gsave } bind def
/Q { grestore } bind def
/cm { 6 array astore concat } bind def
/w { setlinewidth } bind def
/J { setlinecap } bind def
/j { setlinejoin } bind def
/M { setmiterlimit } bind def
/d { setdash } bind def
/m { moveto } bind def
/l { lineto } bind def
/c { curveto } bind def
/h { closepath } bind def
/re { exch dup neg 3 1 roll 5 3 roll moveto 0 rlineto
      0 exch rlineto 0 rlineto closepath } bind def
/S { stroke } bind def
/f { fill } bind def
/f* { eofill } bind def
/n { newpath } bind def
/W { clip } bind def
/W* { eoclip } bind def
/BT { } bind def
/ET { } bind def
/pdfmark where { pop globaldict /?pdfmark /exec load put }
    { globaldict begin /?pdfmark /pop load def /pdfmark
    /cleartomark load def end } ifelse
/BDC { mark 3 1 roll /BDC pdfmark } bind def
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/rg { setrgbcolor } bind def
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EDIT: Re: luser droog's answer; if I try to open combo.ps as written in evince, I get:

$ evince combo.ps
invalidfileaccess -9

This is probably related to #414002 - gs -dSAFER: /invalidfileaccess with "run" operator - Debian Bug report logs... If I try to add the PostScript header "%!" at start, I get:

$ nano combo.ps # added %! at start
$ evince combo.ps
undefined -21
undefined -21

I also tried running ps2ps - this is what comes out:

$ ps2ps combo.ps comboB.ps
Error: /undefined in --load--
Operand stack:
   Oldshowpage
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1910   1   3   %oparray_pop   1909   1   3   %oparray_pop   1893   1   3   %oparray_pop   1787   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--
Dictionary stack:
   --dict:1159/1684(ro)(G)--   --dict:0/20(G)--   --dict:77/200(L)--
Current allocation mode is local
Current file position is 30
GPL Ghostscript 9.02: Unrecoverable error, exit code 1

解决方案

A similar approach to KenS's would be to put the "composition" code in a single file and call the component files with the run operator. It amounts to the same thing but with a little less shell-work. A limitation is that the -dSAFER option (which is ON by default in most Distiller installations) disables the run operator.

combo.ps:

/Oldshowpage /showpage load def
/showpage {} def
gsave
    (tmp-Front.ps) run
grestore
    %additional scaling and translation to place the graphic?
    (logo.ps) run
Oldshowpage

这篇关于覆盖两个postscript文件（命令行方法）？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！

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覆盖两个postscript文件（命令行方法）？ [英] Overlay two postscript files (command line approach)?

问题描述

重叠的连结.ps档案内容

The problem - logo on top of PCB .ps printout

Viewers

Concatenating .ps file contents for overlay

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覆盖两个postscript文件（命令行方法）？ [英] Overlay two postscript files (command line approach)?

问题描述

重叠的连结.ps档案内容

The problem - logo on top of PCB .ps printout

Viewers

Concatenating .ps file contents for overlay

相关文章

服务器开发最新文章

热门教程

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