Tikz绘制的生日蛋糕

Tikz已经成为很多TeX用户进行绘制图片助手了，也有不少网友绘制些有意思的图片，下面是作者绘制的生日蛋糕，非常不错，截图如下：   代码如下：

\documentclass{standalone}
\usepackage{tikz}
\begin{document}

\begin{tikzpicture}
\fill[white!80!black] (3,-.2) circle[x radius=5.05,y radius=1.66666];
\fill[white!80!black] (3,0) circle[x radius=5,y radius=1.66666];
\draw[white!75!black] (3,0) circle[x radius=5,y radius=1.66666];
\fill[white!75!black] (3,0) circle[x radius=4,y radius=1.33333];
\begin{scope}
\clip (0,0) arc[x radius=3,y radius=1,start angle=180,delta angle=180] -- ++(0,2)  arc[x radius=3,y radius=1,start angle=0,delta angle=-180] -- ++(0,-2);
\foreach \k in {0,...,60} {
  \pgfmathparse{Mod(\k,2) ? "pink" : "purple!50"}
  \let\linecol=\pgfmathresult
  \draw[line width=1mm,\linecol] (\k mm,2) -- ++(0,-3);
}
\end{scope}
\fill[opacity=.3] (0,2) arc[x radius=3,y radius=1,start angle=180,delta angle=180] -- ++(0,-.5)  arc[x radius=3,y radius=1.25,start angle=0,delta angle=-180] -- ++(0,.5);
\fill[pink] (-.25,2) .. controls +(0,-.5) and +(-2,0) .. ++(3.25,-1.25) .. controls +(2,0) and +(0,-.5) .. ++(3.25,1.25) -- ++(0,1) .. controls +(0,.5) and +(2,0) .. ++(-3.25,1.25) .. controls +(-2,0) and +(0,.5) .. ++(-3.25,-1.25);
\draw[pink!80!black] (-.25,3) .. controls +(0,-.5) and +(-2,0) .. ++(3.25,-1.25) .. controls +(2,0) and +(0,-.5) .. ++(3.25,1.25)  .. controls +(0,.5) and +(2,0) .. ++(-3.25,1.25) .. controls +(-2,0) and +(0,.5) .. ++(-3.25,-1.25);
\fill[pink!80!black] (.75,3) .. controls +(0,-.25) and +(-2,0) .. ++(2.25,-.75) .. controls +(2,0) and +(0,-.25) .. ++(2.25,.75)  .. controls +(0,.25) and +(2,0) .. ++(-2.25,.75) .. controls +(-2,0) and +(0,.25) .. ++(-2.25,-.75);
\foreach \i in {0,...,5} {
\pgfmathsetmacro{\yshift}{-\i * (5 - \i) * .07cm}
\begin{scope}[xshift=\i * .5cm,yshift = \yshift]
\fill[purple!70] (1.5,3) arc[x radius=5pt, y radius=2.5pt, start angle=-180, end angle=0] -- ++(0,2) arc[x radius=5pt, y radius=2.5pt, start angle=0, end angle=-180] -- cycle;
\fill[pink] (1.5,5) arc[x radius=5pt, y radius=2.5pt, start angle=-180, end angle=180];
\fill[yellow] (1.5,7.5) ++(5pt,0) .. controls +(0,-1) and +(.5,0) .. ++(0,-2.5) .. controls +(-.5,0) and +(0,-1) .. ++(0,2.5);
\end{scope}
}
\end{tikzpicture}
\end{document}