44 lines
1.3 KiB
Text
44 lines
1.3 KiB
Text
__HEADER__(Math figures with TikZ / pgfplots / xy)
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% This is just a collection of the packages I use to typeset mathematical figures
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% most commonly plots, commutative diagrams or geometry
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\RequirePackage{pgfplots} % Plots
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\pgfplotsset{compat=1.7}
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\RequirePackage{tikz} % Plots / drawings
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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{xparse}
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%%for small diagrams, similar to tikz-cd
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\RequirePackage[all]{xy} % for small diagrams, e.g. arrows
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%%% In older versions, you found
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% \RequirePackage{xy}
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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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% 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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