57 lines
1.1 KiB
TeX
57 lines
1.1 KiB
TeX
\documentclass[a4]{article}
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\usepackage{tikz}
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\begin{document}
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Draw a box and label the corners and the center:
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\begin{tikzpicture}
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\draw (0,0) -- (0,1) -- (1,1) -- (1,0) -- (0,0);
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\node [below left] at (0,0) {$a$};
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\node [above left] at (0,1) {$b$};
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\node [above right] at (1,1) {$c$};
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\node [below right] at (1,0) {$d$};
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\draw [fill] (0.5,0.5) circle [radius=0.5pt];
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\node [above right] at (0.45,0.45) {\small {$e$}};
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\end{tikzpicture}
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\bigskip \hrule \bigskip
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Draw some lines:
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\bigskip
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\begin{tikzpicture}
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\draw [|-] (0,0) -- (2,0);
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\draw [|-<] (0,0.5) -- (2,0.5);
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\draw [|->] (0,1) -- (2,1);
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\end{tikzpicture}
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\bigskip \hrule \bigskip
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\paragraph{An experiment with polar coordinates}
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This does not work:
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\vspace{1.5cm}
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\begin{tikzpicture}
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\tikz \draw [->] (0,0) -- (0:1);
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\tikz \draw [->] (0,0) -- (72:1);
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\tikz \draw [->] (0,0) -- (144:1);
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\tikz \draw [->] (0,0) -- (216:1);
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\tikz \draw [->] (0,0) -- (288:1);
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\end{tikzpicture}
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\bigskip
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But this does:
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\bigskip
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\begin{tikzpicture}
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\foreach \a in {0, 72,...,288}
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\draw [->] (0,0) -- (\a:1);
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\end{tikzpicture}
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\end{document} |