plickers2.tex

%%%%%%%%%%%%%%%%%%%%
% The Plickers cards available at
% https://assets.plickers.com/plickers-cards/PlickersCards_2up_LargeAnswers_1-40.pdf
% are here enlarged and tabbed for use in larger classrooms
%
% DIRECTIONS.
% Typeset twice to get positioning correct.
% Print single-sided on card stock,
% then cut out negative space around tabs.
% Tabs make it easy for students to find their
% Plickers card at beginning of each class
%%%%%%%%%%%%%%%%%%%%

\RequirePackage{luatex85}
\documentclass{article}
\usepackage[margin=0in, landscape]{geometry}
\usepackage{pdfpages, tikz}
\setlength\parindent{0mm}

%% DEFINE \Repeat{n}{content}
\usepackage{expl3}
\ExplSyntaxOn
\cs_new_eq:NN \Repeat \prg_replicate:nn
\ExplSyntaxOff

\newcounter{cardpage}
\newcommand\card[2]{
	\newpage
	\begin{tikzpicture}[overlay, remember picture, dashed]
		\foreach \angle in {0, 180} \draw[rotate=\angle]
			(current page.center)
			++({-4in+(1+mod(#1-1,20))*0.4in}, 4.25in) to
			++(down: 0.2in + 0.15in)
			++(left:0.2in)
			node[rotate=\angle] {\scalebox{2.5}{#1}}
			++(right:0.2in) to
			++(down: 0.15in) to
			++(right:{8in-(1+mod(#1-1,20))*0.4in}) to
			++(up:0.5in)
			;
		\end{tikzpicture}
	\begin{minipage}{11in}
		\centering
		\includepdf[pages=\arabic{cardpage}, clip, trim=#2, height=7.5in]{plickers40.pdf}
		\end{minipage}
	}

\begin{document}
\sf
\Repeat{20}{
	\stepcounter{cardpage}
	\pgfmathtruncatemacro\carda{\arabic{cardpage}*2-1}
	\pgfmathtruncatemacro\cardb{\arabic{cardpage}*2}
	\card\carda{58mm 159.75mm 58mm 20mm} %% trim = L B R T
	\card\cardb{58mm 20mm 58mm 159.75mm} %% trim = L B R T
	}
\end{document}