Paper - Hide everything except for the outputs from one command

Question

In the following code, I can hide in the paper any piece of text except the ones coming from the command \showthis.

Is there a way to hide output coming from other materials like pictures and tikz drawings for example ?

This would be to do a preprocessing for a tool to automate corrections of tests.

\documentclass[12pt]{article}

\usepackage{xcolor}

\makeatletter
\newcommand{\globalcolor}[1]{%
  \color{#1}\global\let\default@color\current@color
}
\makeatother

\AtBeginDocument{\globalcolor{white}}

\usepackage{lipsum}

\newcommand\showthis{{\color{black} JUST SHOW ME}}

\newcommand\blabla{bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla...}


\begin{document}

\lipsum[2]

\showthis{}

\lipsum[2]

\showthis{}

\blabla{} \showthis{} \blabla{}

\lipsum[2]


\end{document}

Hide on paper or in the PDF? For example, your approach hides the text on paper, but it still exists in the PDF. — Steven B. Segletes, Mar 07 '18 at 10:51
Possible duplicate of Output Content ONLY from a Single Macro — Phelype Oleinik, Mar 07 '18 at 11:06
I have edited my question. I am only concerned by the paper version. — projetmbc, Mar 07 '18 at 11:43
If only the paper version is the issue, then why isn't what you have already done (in the example provided in your question) good enough? — Steven B. Segletes, Mar 07 '18 at 12:07

score 1 · Answer 1 · answered Mar 07 '18 at 12:01

1

Is it something like thqt you are looking for ?

Hidetrue

Hidefalse

\documentclass[12pt]{article}
\usepackage{xcolor}
\newif\ifHide
\Hidetrue % hide the text 
%\Hidefalse % show the text

\usepackage{lipsum}

\newenvironment{Hidethis}{%
    \ifHide
    \begingroup\color{white}
    \fi}{%
    \ifHide
    \endgroup
    \fi}

\newcommand\blabla{bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla, bla...}


\begin{document}

\begin{Hidethis}
\lipsum[2]
\end{Hidethis}

JUST SHOW ME

\begin{Hidethis}
\blabla{}
\end{Hidethis}
JUST SHOW ME
\begin{Hidethis}
\blabla{}
\end{Hidethis}

\begin{Hidethis}
\lipsum[2]
\end{Hidethis}
\end{document}

answered Mar 07 '18 at 12:01

Tarass

16,912

Thanks. But this solution is only for text. How can I manage pictures and other none textual materials. – projetmbc Mar 07 '18 at 12:04
@projetmbc do you the hidden parts disappear and take no more room or turn white but stay in place. – Tarass Mar 07 '18 at 22:09
Thanks for your solution but I am looking for a soft solution which uses a macro for the parts to be displayed instead of a macro for things to be hidden. – projetmbc Mar 11 '18 at 13:46
@projetmbc OK but do you want that the displayed parts stay at there places (hidden text takes his room) or hidden text vanishes and the displayed parts stick together? Am I clear ? – Tarass Mar 11 '18 at 14:17
@Tarras Yes I want that hidden texts take their room. – projetmbc Mar 12 '18 at 08:22
I have it in mind. I'll post if I'll found something. – Tarass Mar 12 '18 at 09:41

Paper - Hide everything except for the outputs from one command

1 Answers1