tikzsetup.tex

\usetikzlibrary{decorations.markings,decorations.pathreplacing,
  shapes.geometric,matrix,arrows,chains,positioning,scopes}

\pgfdeclarearrow{
  name = pxto,
  setup code = {
    % The different end values:
    \pgfarrowssettipend{1.5\pgflinewidth}
    \pgfarrowssetbackend{-2.5508\pgflinewidth}
    \pgfarrowssetlineend{-.25\pgflinewidth}
    \pgfarrowssetvisualbackend{-0.021\pgflinewidth}
    % The hull
    \pgfarrowsupperhullpoint{1.5\pgflinewidth}{0\pgflinewidth}
    \pgfarrowsupperhullpoint{-2.0085\pgflinewidth}{3.6525\pgflinewidth}
    \pgfarrowsupperhullpoint{-2.5508\pgflinewidth}{3.0763\pgflinewidth}
    % No saves
  },
  drawing code = {
    \pgfsetdash{}{0pt}%
    \pgfpathmoveto{\pgfpoint{1.5\pgflinewidth}{0.0254\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-2.0085\pgflinewidth}{3.6525\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-2.5508\pgflinewidth}{3.0763\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-0.4322\pgflinewidth}{0.5\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-0.4322\pgflinewidth}{-0.5\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-2.5508\pgflinewidth}{-3.0763\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-2.0085\pgflinewidth}{-3.6525\pgflinewidth}}%
    \pgfpathclose%
    \pgfusepathqfill
  }
}
\pgfdeclarearrow{
  name = pxbar,
  setup code = {
    \pgfarrowssettipend{0.5\pgflinewidth}
    \pgfarrowssetbackend{-0.5\pgflinewidth}
    \pgfarrowsupperhullpoint{0.5\pgflinewidth}{3.6525\pgflinewidth}
    \pgfarrowsupperhullpoint{-0.5\pgflinewidth}{3.6525\pgflinewidth}
  },
  drawing code = {
    \pgfsetdash{}{0pt}%
    \pgfpathmoveto{\pgfpoint{0.5\pgflinewidth}{3.6525\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-0.5\pgflinewidth}{3.6525\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{-0.5\pgflinewidth}{-3.6525\pgflinewidth}}%
    \pgfpathlineto{\pgfpoint{0.5\pgflinewidth}{-3.6525\pgflinewidth}}%
    \pgfpathclose%
    \pgfusepathqfill
  }
}

\tikzset{every picture/.style={line width=0.59pt}}

\tikzset{
  cntdot/.style={fill,circle,inner sep=.4pt},
  dot/.style={fill,circle,inner sep=1pt},
  basedot/.style={fill,circle,inner sep=1.3pt},
  double line with arrow/.style args={#1,#2}{decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base-1) at (0,1pt);%
      \coordinate (ta-base-2) at (0,-1pt);},%
    mark=at position 1 with {\draw[#1] (ta-base-1) -- (0,1pt);%
      \draw[#2] (ta-base-2) -- (0,-1pt);}%
  }},
  double line with arrow left/.style args={#1,#2}{decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base-1) at (0,1pt);%
      \coordinate (ta-base-2) at (0,-1pt);},%
    mark=at position 0.3 with {\coordinate (ta-mid) at (0,4pt);},%
    mark=at position 0.7 with {\draw[->] (ta-mid) -- (0,4pt);},%
    mark=at position 1 with {\draw[#1] (ta-base-1) -- (0,1pt);%
      \draw[#2] (ta-base-2) -- (0,-1pt);}%
  }},
  double line with arrow right/.style args={#1,#2}{decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base-1) at (0,1pt);%
      \coordinate (ta-base-2) at (0,-1pt);},%
    mark=at position 0.3 with {\coordinate (ta-mid) at (0,-4pt);},%
    mark=at position 0.7 with {\draw[->] (ta-mid) -- (0,-4pt);},%
    mark=at position 1 with {\draw[#1] (ta-base-1) -- (0,1pt);%
      \draw[#2] (ta-base-2) -- (0,-1pt);}%
  }},
  equals right/.style={decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base) at (0,0);},%
    mark=at position 0.5 with {\draw[line width=0.51pt,-] (-2pt,-3pt)--(2pt,-3pt);%
      \draw[line width=0.51pt,-] (-2pt,-4.5pt)--(2pt,-4.5pt);},%
    mark=at position 1 with {\draw[->] (ta-base) -- (0,0);}%
  }},
  equals left/.style={decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base) at (0,0);},%
    mark=at position 0.5 with {\draw[line width=0.51pt,-] (-2pt,3pt)--(2pt,3pt);%
      \draw[line width=0.51pt,-] (-2pt,4.5pt)--(2pt,4.5pt);},%
    mark=at position 1 with {\draw[->] (ta-base) -- (0,0);}%
  }},
  equiv right/.style={decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base) at (0,0);},%
    mark=at position 0.5 with {\draw[line width=0.51pt,-,line cap=round] (-2pt,-4pt)
      .. controls (0pt,-2pt) and (0pt,-5.5pt) .. (2pt,-3.5pt);},%
    mark=at position 1 with {\draw[->] (ta-base) -- (0,0);}%
  }},
  equiv left/.style={decorate,decoration={markings,%
    mark=at position 0 with {\coordinate (ta-base) at (0,0);},%
    mark=at position 0.5 with {\draw[line width=0.51pt,-,line cap=round] (-2pt,3.5pt)
      .. controls (0pt,5.5pt) and (0pt,2pt) .. (2pt,4pt);},%
    mark=at position 1 with {\draw[->] (ta-base) -- (0,0);}%
  }},
  eq/.style={-,double line with arrow={-,-},outer sep=2pt,},
  eql/.style={-,equals left,},
  eqr/.style={-,equals right,},
  equivl/.style={-,equiv left,},
  equivr/.style={-,equiv right,},
  eqtol/.style={-,double line with arrow left={-,-},outer sep=2pt,},
  eqtor/.style={-,double line with arrow right={-,-},outer sep=2pt,},
}

\tikzset{>=pxto,%
  mapsto/.style={pxbar-pxto}}
\tikzcdset{arrow style=tikz,%
  arrows={line width=0.59pt},%
  invisible/.style={/tikz/draw=none},%
  mapsto/.style={pxbar-pxto}}

\tikzcdset{
  equals/.add code={\PackageError{cas}{Please don't use the TikZ-cd equals style}{}}{}
}

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