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% !TeX root = ./examples/pingu.tex
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The tikzlings-penguins package (part of the tikzlings collection)
% A package to bring penguins into tikz
% Maintained by samcarter
%
% Project repository and bug tracker:
% https://github.com/samcarter/tikzlings
%
% Released under the LaTeX Project Public License v1.3c or later
% See http://www.latex-project.org/lppl.txt
%
% Version 0.2
% April 7, 2019
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ProvidesPackage{tikzlings-penguins}
[2019/04/07 v0.2 Draw penguins in TikZ]
\RequirePackage{tikz}
\RequirePackage{tikzlings-addons}
\newcommand*{\penguin}[1][]{%
\begin{scope}%
\tikzset{/penguin/.cd,#1}%
\penguin@draw%
\end{scope}%
\thing[#1]%
}
\newif\ifpenguin@threeD
\tikzset{
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Pass unknown keys on to tikz
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
/penguin/.search also={/tikz,/pgf,/thing},
/penguin/.cd,
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% body
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
body/.code = \def\penguin@body{#1},
body = black,
belly/.code = \def\penguin@belly{#1},
belly = white!95!black,
feet/.code = \def\penguin@feet{#1},
feet = yellow!50!orange,
bill/.code = \def\penguin@bill{#1},
bill = orange,
eye/.code = \def\penguin@eye{#1},
eye = white!95!black,
pupil/.code = \def\penguin@pupil{#1},
pupil = black,
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% options
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3D/.code = \penguin@threeDtrue,
}
\def\penguin@draw{%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% minimal bounding box size
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\path (-0.865, 0.15) rectangle (0.865, 2.13);
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% store the current scale factor
% from https://github.com/samcarter/tikzlings/issues/3#issuecomment-461373494
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\pgfgettransformentries{\tmpscaleA}{\tmpscaleB}{\tmpscaleC}{\tmpscaleD}{\tmp}{\tmp}%
\pgfmathsetmacro{\scalingfactor}{sqrt(abs(\tmpscaleA*\tmpscaleD-\tmpscaleB*\tmpscaleC))}%
\pgfmathsetmacro{\xscalefactor}{\tmpscaleA}
\pgfmathsetmacro{\yscalefactor}{\tmpscaleD}
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% switch between 2D and 3D, from
% https://chat.stackexchange.com/transcript/message/45991801#45991801
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ifpenguin@threeD
\def\penguin@part@draw[##1]{\shade[ball color=##1]}
\else
\def\penguin@part@draw[##1]{\fill[##1]}
\fi
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Body parts (center: x=0.925)
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Arms %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\penguin@part@draw[\penguin@body,rotate around={-50:(0.575,1.2)}] (0.575,1.2) ellipse (0.38 and 0.1);
\penguin@part@draw[\penguin@body,rotate around={50:(-0.575,1.2)}] (-0.575,1.2) ellipse (0.38 and 0.1);
%
% Body %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\penguin@part@draw[\penguin@body] (0.595, 0.92) .. controls (0.595, 0.26) and (0.355, 0.18) .. (0, 0.18) .. controls (-0.355, 0.18) and (-0.595, 0.26) .. (-0.595, 0.92) .. controls (-0.605, 1.58) and (-0.335, 2.11) .. (0, 2.11) .. controls (0.335, 2.11) and (0.605, 1.58) .. (0.595, 0.92) -- cycle;
%
% Belly %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\penguin@part@draw[\penguin@belly] (0, 0.6) ellipse (0.48 and 0.35);
%
% Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\penguin@part@draw[\penguin@feet]
(-0.265, 0.3941) .. controls (-0.283, 0.4505) and (-0.373, 0.6014) .. (-0.470, 0.6533) .. controls (-0.571, 0.7075) and (-0.576, 0.6369) .. (-0.554, 0.596) .. controls (-0.526, 0.5416) and (-0.573, 0.5302) .. (-0.602, 0.5384) .. controls (-0.695, 0.5653) and (-0.767, 0.5169) .. (-0.684, 0.434) .. controls (-0.664, 0.4137) and (-0.587, 0.3557) .. (-0.699, 0.3492) .. controls (-0.772, 0.345) and (-0.779, 0.268) .. (-0.689, 0.2445) .. controls (-0.597, 0.2206) and (-0.476, 0.2043) .. (-0.34, 0.2096) .. controls (-0.252, 0.2131) and (-0.237, 0.3059) .. (-0.265, 0.3941) -- cycle;
\penguin@part@draw[\penguin@feet]
(0.265, 0.3941) .. controls (0.283, 0.4505) and (0.3725, 0.6014) .. (0.469, 0.6533) .. controls (0.571, 0.7075) and (0.5756, 0.6369) .. (0.554, 0.596) .. controls (0.526, 0.5416) and (0.5733, 0.5302) .. (0.602, 0.5384) .. controls (0.695, 0.5653) and (0.7672, 0.5169) .. (0.684, 0.434) .. controls (0.663, 0.4137) and (0.587, 0.3557) .. (0.699, 0.3492) .. controls (0.772, 0.345) and (0.7789, 0.268) .. (0.689, 0.2445) .. controls (0.597, 0.2206) and (0.4764, 0.2043) .. (0.34, 0.2096) .. controls (0.252, 0.2131) and (0.2368, 0.3059) .. (0.265, 0.3941) -- cycle;
%
% Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\fill[\penguin@eye,rotate around={-10:(-0.175,1.64)}] (-0.175,1.64) ellipse (0.1 and 0.15);
\fill[\penguin@pupil,rotate around={-3:(-0.145,1.625)}] (-0.145,1.625) ellipse (0.0357 and 0.0714);
\fill[\penguin@eye,rotate around={10:(0.175,1.64)}] (0.175,1.64) ellipse (0.1 and 0.15);
\fill[\penguin@pupil,rotate around={3:(0.145,1.625)}] (0.145,1.625) ellipse (0.0357 and 0.0714);
%
% Bill %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\penguin@part@draw[\penguin@bill] (0.323, 1.4591) .. controls (0.1467, 1.3257) and (0.1066, 1.4365) .. (0, 1.4358) .. controls (-0.1066, 1.4365) and (-0.1467, 1.3257) .. (-0.323, 1.4591) .. controls (-0.1267, 1.075) and (0.1267, 1.075) .. (0.323, 1.4591) -- cycle;
}
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