如何使用Gnuplot创建多页PDF文件? [英] How to create a multi-page PDF-file with Gnuplot?

问题描述

我在Mac上通过 ruby​​-gnuplot 在Gnuplot上进行了很多绘制.如果我重新运行ruby脚本，则带有图的打开窗口的数量将增加一倍.如果我可以将所有这些图输出到在预览"中打开的PDF中，那么每次重新运行后该文件都会自动更新，而我无需费心关闭众多窗口.

I make a dozen of plots with Gnuplot on Mac via ruby-gnuplot. If I re-run my ruby script, then the number of open windows with the plots doubles. If I could just output all these plots in a PDF opened in Preview, then the file would be automatically updated after every re-run and I don't need to bother closing the numerous windows.

目前，我只能通过每个PDF文件一个图来实现此目的:

Currently I can achieve this only with one plot per PDF-file:

Gnuplot.open do |gp|
  Gnuplot::Plot.new(gp) do |plot|
    plot.arbitrary_lines << "set terminal pdf \n set output 'figures.pdf'"
    # ...
  end
end

如何用Gnuplot的所有图形制作一个PDF?

How can I make a single PDF with all my figures by Gnuplot?

推荐答案

Hmm，至少在gnuplot上用于UN * x，Postscript和PDF的多页输出始终是默认设置-只要您不更改终端输入或重新分配输出文件，您绘制的所有内容都会在新页面上显示.

Hmm, at least on gnuplot for UN*x, multipage output for postscript and PDF always was the default - as long as you don't either change the terminal type nor reassign the output file, everything you plot ends up on a new page.

即你这样做:

set terminal pdf
set output "multipageplot.pdf"
plot x, x*x
plot sin(x), cos(x)
set output ""

您最终在PDF文件中有两页，其中一页包含行/抛物线，另一页包含正弦/余弦.

and you end up with two pages in the PDF file, one containing line/parabola, the other sine/cosine.

阐明:重要的是按顺序发出所有plot命令，而不更改输出文件或更改终端类型. Gnuplot不会追加到现有的PDF文件中.

To clarify: The important thing is to issue all the plot commands in sequence, without changing the output file nor changing the terminal type. Gnuplot won't append to an existing PDF file.

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