add pushout and pullback symbols
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7116da1450
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2 changed files with 32 additions and 3 deletions
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@ -11,6 +11,7 @@ __HEADER__(Math figures with TikZ / pgfplots / xy)
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\usetikzlibrary{calc, intersections, through, quotes, angles, babel, positioning, snakes}
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\usetikzlibrary{calc, intersections, through, quotes, angles, babel, positioning, snakes}
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\RequirePackage{tikz-cd} %Commutative diagrams
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\RequirePackage{tikz-cd} %Commutative diagrams
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\RequirePackage{xparse}
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%%for small diagrams, similar to tikz-cd
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%%for small diagrams, similar to tikz-cd
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@ -20,3 +21,24 @@ __HEADER__(Math figures with TikZ / pgfplots / xy)
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% \xyoption{all}
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% \xyoption{all}
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% here, but this messes with the catcode of the @ sign (which no package should do!)
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% here, but this messes with the catcode of the @ sign (which no package should do!)
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% so that further parts in this package would get broken
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% so that further parts in this package would get broken
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\newcommand\pushoutsymbol{\tikz[baseline=0.5,scale=0.2]{
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\draw[-] (0,0) --(0,1) -- (1,1);
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\draw (1,0) circle (1.5pt);}
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}
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\newcommand\pullbacksymbol{\tikz[baseline=0.5,scale=0.2]{
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\draw[-] (0,0) --(1,0) -- (1,1);
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\draw (0,1) circle (1.5pt);}
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}
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% This is used in a tikzcd
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\NewDocumentCommand\pushout{ O{dr} }{
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\arrow[phantom, pos=0.45]{#1}{\pushoutsymbol}
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}
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% This is used in a tikzcd
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\NewDocumentCommand\pullback{ O{dr} }{
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\arrow[phantom, pos=0.45]{#1}{\pullbacksymbol}
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}
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@ -10,7 +10,14 @@
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\end{tikzcd}
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\end{tikzcd}
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\]
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\]
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test2:
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test2:
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\begin{tikzpicture}
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\draw (0,0) rectangle (10,10);
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\begin{tikzcd}
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\end{tikzpicture}
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A \pushout & B \\
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C & D
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\end{tikzcd}
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\begin{tikzcd}
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A \pullback & B \\
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C & D
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\end{tikzcd}
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\end{document}
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\end{document}
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