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I am trying to concentrate often used options for a tikzpicture under a tikzset command in the preamble, to share among different pictures. My MWE is:

\documentclass[crop,tikz]{standalone} \usepackage{tikz} \usetikzlibrary{arrows.meta} % \tikzset{every picture/.append style{line cap=round, line width=1.5pt, {-Latex[round]}}} \begin{document} \begin{tikzpicture} [line cap=round, line width=1.5pt, {-Latex[round]}] \draw [blue](0, 0) -- (0.5, 1); \draw [red] (0, 0) -- (1, 0.25); \end{tikzpicture} \end{document}

The file compiles well as is, but does not if I comment out the options after \begin{tikzpicture} and uncomment the line with tikzset in the preamble.

How can I get the tikzset command to work so that I may, dispense with the options after \begin{tikzpicture}

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  • Trying what you have suggested gives me the correct arrow tip but the line cap and line width are not recognized and are default. I want an invocation that can set all three in one go. Is that at all possible? Commented Nov 19, 2023 at 7:23

1 Answer 1

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You are missing an = in your \tikzset command. But additionally, I wouldn't use .append for this but instead use .style:

\documentclass[crop,tikz]{standalone} \usepackage{tikz} \usetikzlibrary{arrows.meta} \tikzset{every picture/.style={line cap=round, line width=1.5pt, {-Latex[round]}}} \begin{document} \begin{tikzpicture} \draw [blue](0, 0) -- (0.5, 1); \draw [red] (0, 0) -- (1, 0.25); \end{tikzpicture} \end{document}
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  • Such a foolish error on my part! Thank you @Alan Munn. It now works as I intended. Commented Nov 19, 2023 at 7:28
  • You might want to explain why you prefer .style, since this really isn't obvious from the manual. @chandra If you're curious, \tikzset{/handlers/.add code/.show code,/handlers/.code/.show code} will show you (what I assume to be) the reason on the terminal ;). Commented Nov 19, 2023 at 7:33
  • I have just started reading 87.1.2 Quick Guide to Using the Key Mechanism in the manual. I had always wondered about the dot. Now it is clearer. Thanks @cfr. Commented Nov 19, 2023 at 7:47

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