Happy New Year！

新年来了，祝福大家新的一年幸福快乐。 同时奉上Tikz绘制的烟花给大家欣赏欣赏:

\documentclass[tikz]{standalone}
\usepackage{tikz}
\usetikzlibrary{decorations.pathmorphing,decorations.shapes}
\begin{document}
\foreach \radius in {1,2,...,20}
{
\begin{tikzpicture}
% background rectangle
\filldraw[black] (-3,-3) rectangle (5,3);
% skyline
\filldraw[black!80!blue](-3,-3)--(-3,-2)--(-2.5,-2)--(-2.5,-1)--(-2.25,-1)--(-2.25,-2)--(-2,-2)
--(-2,-1)--(-1.75,-0.75)--(-1.5,-1)
--(-1.5,-2)--(-1.1,-2)--(-1.1,0)--(-0.5,0)--(-0.5,-2)
--(0,-2)--(0,-1.5)--(1,-1.5)--(1.25,-0.5)--(1.5,-1.5)--(1.5,-2)
--(2,-2)--(2,0)--(2.5,0)--(2.5,-2)
--(3,-2)--(3,-1)--(4,-1)--(4,-2)--(5,-2)--(5,-3)--cycle;
% moon- what a hack!
\filldraw[white] (4,2.5) arc (90:-90:20pt);
\filldraw[black] (3.8,2.5) arc (90:-90:20pt);
% fireworks
\pgfmathparse{100-(\radius-1)*10};
% red firework
\ifnum\radius<11
\draw[decorate,decoration={crosses},red!\pgfmathresult!black] (0,0) circle (\radius ex);
\fi
% orange firework
\pgfmathparse{100-(\radius-6)*10};
\ifnum\radius>5
\ifnum\radius<16
\draw[decorate,decoration={crosses},orange!\pgfmathresult!black] (1,1) circle ( \radius ex-5ex);
\fi
\fi
% yellow firework
\pgfmathparse{100-(\radius-11)*10};
\ifnum\radius>10
\draw[decorate,decoration={crosses},yellow!\pgfmathresult!black] (2.5,1) circle (\radius ex-10ex);
\fi
\end{tikzpicture}
}
\end{document}

运行方式:

pdfcrop myfile.pdf
convert -delay 20 -loop 0 -density 300 myfile-crop.pdf fireworks.gif

选自:texblog.net 更多示例参看:http://tex.stackexchange.com/questions/39485/how-can-we-display-fireworks