在考虑创建自己的降临节日历为我身边挚爱的人制作一个——而不是购买一个里面有巧克力的无聊产品——一个想法浮现在我的脑海里：“我该如何在 TikZ 中绘制它？”由于今年我将走一条不同的路并且没有时间实现 LaTeX 版本，所以我认为我可以让它成为社区的一个挑战。
因此，实施时应提供以下规范：
- 在矩形区域上，创建 24 个随机分布的“窗口”（用简单的矩形表示），标记为 1 到 24。
- 编号为 1 至 23 的窗口应具有相同的尺寸和纵横比，编号为 24 的窗口可以具有不同的纵横比，但应覆盖其他窗口面积的两倍左右。
- 必须确保没有两个窗口接触甚至重叠。
- 窗口的位置应在运行时通过随机数生成来计算（而不是通过某种方式硬编码到文档中的值），即每次 LaTeX 运行都应生成一个新的排列。
挑战不仅限于 TikZ，所有可用于完成此任务的 LaTeX 软件包（pstricks等）都可以使用。如果您想知道整个过程会是什么样子，请比较下图。请注意，此示例与指定的标准有两点不同：并非所有窗口都是矩形的，也并非所有窗口都具有相同的大小。
那么，让挑战开始吧，让社区进入圣诞节的气氛……
答案1
我永远不会像汤姆·邦巴迪尔那样喜庆和快乐，所以我甚至不会去尝试。我只想用 LaTeX 解决最小的问题。
以下代码在矩形区域内分布任意数量的不相交矩形（具有独立大小）。该算法只是一种强力算法，阈值限制了放置矩形的最大尝试次数；如果超过，则会引发错误。
这很粗糙，但只要窗口数量少，而且比场地小很多，效果还是不错的。另外，只有八十行。
\documentclass[tikz,border=9]{standalone}
% initialize windows coordinates and sizes
\begingroup\globaldefs=1
\foreach \n in {1,...,24}{
\pgfqkeys{/advent/windows/\n}{
x/.initial=0, w/.initial=1.62cm,
y/.initial=0, h/.initial=1cm,}}
\endgroup
% double the area of the last one
\pgfqkeys{/advent/windows/24}{
w=2.29cm, h=1.41cm,}
% define field size
\pgfqkeys{/advent/field}{
w/.store in=\fW, w=16.2cm,
h/.store in=\fH, h=10cm,}
% macro to randomly displace a window inside the field
\def\PlaceWindow#1{
\pgfqkeys{/advent/windows/#1}{
w/.get=\wW,
h/.get=\wH,}
\pgfmathsetmacro{\wX}{random()*(\fW-\wW)+.5*\wW}
\pgfmathsetmacro{\wY}{random()*(\fH-\wH)+.5*\wH}
\begingroup\globaldefs=1
\pgfqkeys{/advent/windows/#1}{
x/.expand once=\wX,
y/.expand once=\wY,}
\endgroup}
% macro to check for collisions and put the result in \CollisionStatus
\def\CheckCollision#1#2{
\pgfqkeys{/advent/windows/#1}{
x/.get=\aX, w/.get=\aW,
y/.get=\aY, h/.get=\aH,}
\pgfqkeys{/advent/windows/#2}{
x/.get=\bX, w/.get=\bW,
y/.get=\bY, h/.get=\bH,}
\begingroup\globaldefs=1
\pgfmathsetmacro{\CollisionStatus}%
{(abs(\aX-\bX)<.5*(\aW+\bW))&&(abs(\aY-\bY)<.5*(\aH+\bH))}
\endgroup}
% style to draw any window
\pgfkeys{/advent/windows/draw/.style={
draw, rectangle, line width=2pt, node contents=#1, inner sep=0sp, font=\bf,
xshift=\pgfkeysvalueof{/advent/windows/#1/x},
yshift=\pgfkeysvalueof{/advent/windows/#1/y},
minimum width=\pgfkeysvalueof{/advent/windows/#1/w}-\pgflinewidth,
minimum height=\pgfkeysvalueof{/advent/windows/#1/h}-\pgflinewidth,},}
% style to draw the field
\pgfkeys{/advent/field/draw/.style={
draw, rectangle, line width=4pt, node contents={},
xshift=0.5*\fW, minimum width=\fW+\pgflinewidth,
yshift=0.5*\fH, minimum height=\fH+\pgflinewidth,},}
% initialize pseudorandom number generator using custom seed if provided
\ifdefined\seed\pgfmathsetseed{\seed}\fi
% distibute windows on the field
\PlaceWindow1
\foreach \n in {2,...,24}{ % try to place each window
\foreach \t in {1,...,100}{ % up to a hundred times (THRESHOLD)
\PlaceWindow\n
\foreach \k [evaluate=\k using int(\k)] in {2-1,...-1,\n-1}{
\CheckCollision\n\k % until it does not collide
\if1\CollisionStatus\breakforeach\fi % with the preceeding ones
}
\if0\CollisionStatus\breakforeach\fi
}
\if1\CollisionStatus\errmessage{Sorry, 100 attempts were not enough.}\fi
}
%draw the thing
\begin{document}\begin{tikzpicture}
\node[/advent/field/draw];
\node [font=\Huge\bf] at (.5*\fW,2em+\fH) {Merry whatever.};
\foreach \n in {1,...,24} \node[/advent/windows/draw=\n];
\end{tikzpicture}\end{document}
每次运行都会给出不同的结果，只要等待一分钟：TiKz 伪随机数的默认种子是\time*\year。如果希望每次都更改，只需使用 unix 时间戳作为种子进行编译：
pdflatex \\def\seed{`date +%s`}\\input main.tex
这也允许可重复性。种子123的运行时间为几秒钟，并输出
不算漂亮，但我认为所有标准都满足。
更新：美学
我设法将一些视觉效果整合在一起，同时将代码保持在 150 行以下。由于普通的圣诞主题已经得到充分开发，因此我考虑了另一种观点。
以下是代码：
\RequirePackage[dvipsnames]{xcolor}
\documentclass[tikz]{standalone}
% initialize windows coordinates and sizes
\begingroup\globaldefs=1
\foreach \n in {1,...,24}{
\pgfqkeys{/advent/windows/\n}{
x/.initial=0, w/.initial=1.62cm,
y/.initial=0, h/.initial=1cm,}}
\endgroup
% double the area of the last one
\pgfqkeys{/advent/windows/24}{
w=2.29cm, h=1.41cm,}
% define field size
\pgfqkeys{/advent/field}{
w/.store in=\fW, w=16.2cm,
h/.store in=\fH, h=10cm,}
% macro to randomly displace a window inside the field
\def\PlaceWindow#1{
\pgfqkeys{/advent/windows/#1}{
w/.get=\wW,
h/.get=\wH,}
\pgfmathsetmacro{\wX}{random()*(\fW-\wW)+.5*\wW}
\pgfmathsetmacro{\wY}{random()*(\fH-\wH)+.5*\wH}
\begingroup\globaldefs=1
\pgfqkeys{/advent/windows/#1}{
x/.expand once=\wX,
y/.expand once=\wY,}
\endgroup}
% macro to check for collisions and put the result in \CollisionStatus
\def\CheckCollision#1#2{
\pgfqkeys{/advent/windows/#1}{
x/.get=\aX, w/.get=\aW,
y/.get=\aY, h/.get=\aH,}
\pgfqkeys{/advent/windows/#2}{
x/.get=\bX, w/.get=\bW,
y/.get=\bY, h/.get=\bH,}
\begingroup\globaldefs=1
\pgfmathsetmacro{\CollisionStatus}%
{(abs(\aX-\bX)<.5*(\aW+\bW))&&(abs(\aY-\bY)<.5*(\aH+\bH))}
\endgroup}
% style to draw any window
\usepackage{contour} \contourlength{.6pt} \contournumber{200}
\pgfkeys{/advent/windows/draw/.style={
Goldenrod, draw, rectangle, line width=.4pt,
double=black, double distance=.4pt,
node contents=\contour{Goldenrod}{\color{black}#1},
inner sep=0sp, font=\bf\Huge,
xshift=\pgfkeysvalueof{/advent/windows/#1/x}-.5*\fW,
yshift=\pgfkeysvalueof{/advent/windows/#1/y}-.5*\fH,
minimum width=\pgfkeysvalueof{/advent/windows/#1/w}-.6pt,
minimum height=\pgfkeysvalueof{/advent/windows/#1/h}-.6pt,},}
% initialize pseudorandom number generator using custom seed if provided
\ifdefined\seed\pgfmathsetseed{\seed}\fi
% distibute windows on the field
\PlaceWindow1
\foreach \n in {2,...,24}{ % try to place each window
\foreach \t in {1,...,200}{ % up to a hundred times (THRESHOLD)
\PlaceWindow\n
\foreach \k [evaluate=\k using int(\k)] in {2-1,...-1,\n-1}{
\CheckCollision\n\k % until it does not collide
\if1\CollisionStatus\breakforeach\fi % with the preceeding ones
}
\if0\CollisionStatus\breakforeach\fi
}
\if1\CollisionStatus\errmessage{Sorry, 200 attempts were not enough.}\fi
}
% some tricks
\tikzset{
moon shading/.code args={fill #1 to #2 then fade to #3}{
\pgfdeclareradialshading{ring}{\pgfpoint{0cm}{0cm}}%
{color(0)=(#1);color(25bp*#2)=(#1);color(25bp)=(#3)}
\pgfkeysalso{/tikz/shading=ring}},
fuzzy hills action/.style={
line width=\pgflinewidth+2pt,draw opacity=.1,draw=#1,},
fuzzy hills recursion/.code 2 args={%
\pgfmathtruncatemacro{\level}{#1-1}%
\if0\level\tikzset{preaction={fuzzy hills action=#2}}%
\else\tikzset{preaction={fuzzy hills action=#2,
fuzzy hills recursion={\level}{#2}}}\fi},
fuzzy hills/.style={
preaction={fuzzy hills recursion={5}{#1}},draw opacity=1,draw=#1},
}
% draw the thing
\begin{document}\begin{tikzpicture}
\coordinate [ rectangle, bottom color=violet, top color=black,
minimum width=\fW+4pt, minimum height=\fH+4pt,];
\coordinate [ circle, anchor=north, yshift=.5*\fH-8pt, minimum size=0.55*\fH,
moon shading={fill Goldenrod to 0.8 then fade to BurntOrange},];
\begin{scope}
\clip [ rectangle, minimum width=\fW+8pt, minimum height=\fH+8pt];
\fill [ fuzzy hills=Goldenrod!50!white, fill=purple!10!black]
(-6cm,-7cm) ellipse (8cm and 6cm);
\path [ scale=1/12.5, xscale=16.2+.5, yscale=10+.5,
yshift=-6cm, xshift=-6.4cm,
fuzzy hills=Goldenrod!50!white, fill=purple!10!black ]
( 7.33,8.60) .. controls ( 7.01,8.56) and ( 6.80,8.55) ..
( 6.65,8.56) .. controls ( 6.44,8.41) and ( 6.29,8.35) ..
( 6.16,8.33) .. controls ( 6.01,8.16) and ( 5.86,7.99) ..
( 5.80,7.96) .. controls ( 5.60,7.60) and ( 5.52,7.39) ..
( 5.44,7.17) .. controls ( 5.40,6.96) and ( 5.36,6.75) ..
( 5.34,6.49) .. controls ( 5.35,6.36) and ( 5.36,6.26) ..
( 5.41,5.98) .. controls ( 5.53,5.69) and ( 5.59,5.61) ..
( 5.66,5.50) .. controls ( 5.83,5.49) and ( 5.87,5.39) ..
( 6.18,5.56) .. controls ( 6.36,5.88) and ( 6.35,6.01) ..
( 6.40,6.15) .. controls ( 6.38,6.32) and ( 6.36,6.49) ..
( 6.30,6.69) .. controls ( 6.12,6.91) and ( 6.14,6.90) ..
( 5.90,6.84) .. controls ( 5.74,6.59) and ( 5.72,6.46) ..
( 5.76,6.14) .. controls ( 5.83,6.00) and ( 5.96,5.92) ..
( 6.07,6.07) .. controls ( 6.14,6.30) and ( 6.15,6.26) ..
( 6.05,6.50) -- ( 5.95,6.33) --
( 6.02,6.31) .. controls ( 5.97,6.08) and ( 5.93,6.18) ..
( 5.89,6.29) .. controls ( 5.90,6.39) and ( 5.87,6.45) ..
( 6.00,6.68) .. controls ( 6.09,6.61) and ( 6.22,6.56) ..
( 6.20,6.17) .. controls ( 6.16,6.11) and ( 6.19,5.94) ..
( 5.91,5.84) .. controls ( 5.76,5.94) and ( 5.70,5.98) ..
( 5.61,6.46) .. controls ( 5.65,6.75) and ( 5.74,7.00) ..
( 5.85,7.14) .. controls ( 5.98,7.34) and ( 6.15,7.50) ..
( 6.34,7.44) .. controls ( 6.62,7.36) and ( 6.87,7.03) ..
( 7.05,6.71) .. controls ( 7.18,6.38) and ( 7.22,6.20) ..
( 7.25,6.01) .. controls ( 7.27,5.68) and ( 7.26,5.44) ..
( 7.23,5.26) .. controls ( 7.09,4.77) and ( 6.95,4.31) ..
( 6.78,3.95) .. controls ( 6.59,3.52) and ( 6.39,3.14) ..
( 6.20,2.90) .. controls ( 6.01,2.45) and ( 4.04,0.00) ..
( 3.00,-1.00) -- (12.49,0.00) --
(12.48,5.75) .. controls (11.81,5.90) and (11.44,6.16) ..
(10.71,6.44) .. controls (10.34,6.62) and (10.00,6.76) ..
( 9.44,7.10) .. controls ( 9.01,7.40) and ( 8.62,7.78) ..
( 8.21,8.23) .. controls ( 7.91,8.33) and ( 7.61,8.43) .. cycle;
\end{scope}
\coordinate [ rectangle, draw, line width=8pt,
minimum width=\fW+\pgflinewidth,
minimum height=\fH+\pgflinewidth];
\foreach \n in {1,...,24} \node [ /advent/windows/draw=\n ];
\end{tikzpicture}\end{document}
以下是输出seed=24122015：
这是什么？这是什么？到处都是颜色！这是什么？空中有白色的东西！这是什么？我简直不敢相信自己的眼睛，我一定是在做梦；醒醒，杰克，这不公平！这是什么？
我承认这幅画明显缺少蜘蛛、蛇和缩小的头像。也许明年我会抽出时间画一些令人惊喜的东西藏在窗户后面。
答案2
您可以获取包含所有页面的最新 PDF此处（约 4.5 MB）。
目前的一些统计数据：
Python Latex 代码行 150 7300 编译时间 0.22s 1350s
这是第一次非常非常基本版本。它将矩形随机放置在矩形网格上，24 是其两倍大，形成一个漂亮的 5x5 网格。此外，字体大小每天都在增加。
生成 Python 代码
from random import randint, shuffle
from os import system
from sys import argv
__author__ = 'Tom Bombadil'
dates = [x for x in range(24, 0, -1)]
positions = [x for x in range(24, -1, -1)]
shuffle(positions)
if len(argv) >=2:
cell_size = float(argv[1])
else:
cell_size = 3
if len(argv) >=3:
border_size = float(argv[2])
else:
border_size = 0.2
with open("Christmas.tex", "w") as LaTeX:
LaTeX.write('\\documentclass[tikz, border=2mm]{standalone}\n')
LaTeX.write('\\usepackage{kerkis}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{document}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{tikzpicture}\n')
# LaTeX.write('\n')
LaTeX.write('\t\\draw (0,0) rectangle (' + str(5*cell_size) + ', ' + str(5*cell_size) + ');\n')
for date in dates:
position = positions[randint(0, len(positions)-1)]
width = cell_size - 2*border_size
height = cell_size - 2*border_size
# print(date, position)
if date == 24:
if position % 5 == 4:
position -= 1
width = 2*cell_size - 2*border_size
positions.remove(position+1)
positions.remove(position)
x = (position % 5)*cell_size+border_size
y = (position // 5)*cell_size+border_size
LaTeX.write('\t\\fontsize{' + str(date+13) + '}{' + str(int((date+13)*6/5)) + '}\selectfont\n')
LaTeX.write('\t\\draw (' + str(x) + ', ' + str(y) + ') rectangle node {' + str(date) + '} ++ (' + str(width)
+ ', ' + str(height) + ');\n')
# LaTeX.write('\n')
LaTeX.write('\\end{tikzpicture}\n')
LaTeX.write('\n')
LaTeX.write('\\end{document}')
system('pdflatex Christmas.tex')
system('Christmas.pdf')
生成的 LaTeX 代码示例
\documentclass[tikz, border=2mm]{standalone}
\usepackage{kerkis}
\begin{document}
\begin{tikzpicture}
\draw (0,0) rectangle (15, 15);
\fontsize{37}{44}\selectfont
<22 more days>
\fontsize{14}{16}\selectfont
\draw (12.2, 6.2) rectangle node {1} ++ (2.6, 2.6);
\end{tikzpicture}
\end{document}
示例输出
编辑1：现在，盒子的位置有一点随机性，一些颜色和“雪”：
生成 Python 代码
from random import randint, shuffle
from os import system
from sys import argv
__author__ = 'Tom Bombadil'
dates = [x for x in range(24, 0, -1)]
positions = [x for x in range(24, -1, -1)]
shuffle(positions)
if len(argv) >= 2:
cell_size = float(argv[1])
else:
cell_size = 5
if len(argv) >= 3:
border_size = float(argv[2])
else:
border_size = 0.2
with open("Christmas.tex", "w") as LaTeX:
LaTeX.write('\\documentclass[tikz, border=2mm]{standalone}\n')
LaTeX.write('\\usepackage{kerkis}\n')
LaTeX.write('\\usetikzlibrary{shapes.geometric,decorations,decorations.pathmorphing}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{document}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{tikzpicture}[font=\\bf\\sf]\n')
LaTeX.write('\t\\fill[inner color=blue!40!black, outer color=blue!10!black, clip] (0,0) rectangle (' +
str(5*cell_size) + ', ' + str(5*cell_size) + ');\n')
LaTeX.write('\t\\fill[decorate,decoration={random steps,segment length=0.5cm,amplitude=0.3cm}, '
'bottom color=blue!50!black, top color=cyan!50!blue!50!black] (-1,-1) rectangle (' +
str(5*cell_size+1) + ', ' + str(2.5*cell_size) + '12);\n')
for flake in range(300):
snow_x = round(randint(0, 1000)/1000*5*cell_size, 4)
snow_y = round(randint(0, 1000)/1000*5*cell_size, 4)
snow_r = round((randint(0, 18)/20+0.02)*0.1, 4)
LaTeX.write('\t\\fill[blue!20] (' + str(snow_x) + ', ' + str(snow_y) + ') circle (' + str(snow_r) + ');\n')
for date in dates:
position = positions[randint(0, len(positions)-1)]
width = round((cell_size - 2*border_size)/2, 4)
height = round((cell_size - 2*border_size)/2, 4)
# print(date, position)
if date == 24:
if position % 5 == 4:
position -= 1
width = cell_size - border_size
positions.remove(position+1)
positions.remove(position)
x = round((position % 5)*cell_size+border_size + (randint(0, 100)+25)/300*cell_size, 4)
y = round((position // 5)*cell_size+border_size + (randint(0, 100)+25)/300*cell_size, 4)
LaTeX.write('\t\\fontsize{' + str(date+13) + '}{' + str(int((date+13)*6/5)) + '}\selectfont\n')
LaTeX.write('\t\\fill[white, draw=white, fill opacity=0.18, text opacity=1, dotted] (' + str(x) + ', ' +
str(y) + ') rectangle node[circle, fill=white, text=black, fill opacity=0.3, inner sep=3pt] {' +
str(date) + '} ++ (' + str(width) + ', ' + str(height) + ');\n')
LaTeX.write('\\end{tikzpicture}\n')
LaTeX.write('\n')
LaTeX.write('\\end{document}')
system('pdflatex Christmas.tex')
system('Christmas.pdf')
生成的 LaTeX 代码示例
\documentclass[tikz, border=2mm]{standalone}
\usepackage{kerkis}
\usetikzlibrary{shapes.geometric,decorations,decorations.pathmorphing}
\begin{document}
\begin{tikzpicture}[font=\bf\sf]
\fill[inner color=blue!40!black, outer color=blue!10!black, clip] (0,0) rectangle (25, 25);
\fill[decorate,decoration={random steps,segment length=0.5cm,amplitude=0.3cm}, bottom color=blue!50!black, top color=cyan!50!blue!50!black] (-1,-1) rectangle (26, 12.512);
\fill[blue!20] (5.6, 10.175) circle (0.032);
... <298 more snowflakes>
\fill[blue!20] (22.775, 4.375) circle (0.092);
\fontsize{37}{44}\selectfont
\fill[white, draw=white, fill opacity=0.18, text opacity=1, dotted] (0.9, 20.8333) rectangle node[circle, fill=white, text=black, fill opacity=0.3, inner sep=3pt] {24} ++ (4.8, 2.3);
... <22 more calendar days>
\fontsize{14}{16}\selectfont
\fill[white, draw=white, fill opacity=0.18, text opacity=1, dotted] (11.0167, 11.05) rectangle node[circle, fill=white, text=black, fill opacity=0.3, inner sep=3pt] {1} ++ (2.3, 2.3);
\end{tikzpicture}
\end{document}
示例输出
12月1日更新：现在下着雪花，第一扇门后面有一个闪亮的红球！
生成 Python 代码
from random import randint, shuffle
from os import system
from sys import argv
__author__ = 'Tom Bombadil'
dates = [x for x in range(24, 0, -1)]
positions = [x for x in range(24, -1, -1)]
shuffle(positions)
if len(argv) >= 2:
cell_size = float(argv[1])
else:
cell_size = 5
if len(argv) >= 3:
border_size = float(argv[2])
else:
border_size = 0.2
with open("Christmas.tex", "w") as LaTeX:
LaTeX.write('\\documentclass[tikz, border=2mm]{standalone}\n')
LaTeX.write('\\usepackage{kerkis}\n')
LaTeX.write('\\usetikzlibrary{shapes.geometric,decorations,decorations.pathmorphing, spy}\n')
# LaTeX.write('\\usepackage{bbding}\n')
LaTeX.write('\n')
LaTeX.write('\\newcommand{\\SnowFlake}[4]%\n')
LaTeX.write('{\t\\draw[rotate=#4, flake, shift={(#1,#2)}]\n')
LaTeX.write('\t\t(0:#3) -- (180:#3)\n')
LaTeX.write('\t\t(60:#3) -- (240:#3)\n')
LaTeX.write('\t\t(120:#3) -- (300:#3)\n')
LaTeX.write('\t\t\\foreach \\Ray in {0,60,...,300}\n')
LaTeX.write('\t\t{\t(\\Ray:#3/2) -- ++ (\\Ray+60:#3/3) (\\Ray:#3/2) -- ++ (\\Ray-60:#3/3)')
LaTeX.write('\t\t};')
# LaTeX.write('\t\t(0:#3/2) -- ++ (60:#3/3) (0:#3/2) -- ++ (300:#3/3)\n')
LaTeX.write('}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{document}\n')
LaTeX.write('\n')
LaTeX.write('\\begin{tikzpicture}\n')
LaTeX.write('\t[\tfont=\\bfseries\\sffamily,\n')
LaTeX.write('\t\tflake/.style={blue!20, ultra thin},\n')
LaTeX.write('\t\tdaybox/.style={white, draw=white, fill opacity=0.15, text opacity=1, dotted},\n')
LaTeX.write('\t\tdaynode/.style={circle, fill=white, text=black, fill opacity=0.25, inner sep=3pt},\n')
LaTeX.write('\t\tspy using outlines={circle, size=10cm, connect spies, magnification=5}')
LaTeX.write('\t]\n')
LaTeX.write('\t\\fill[inner color=blue!40!black, outer color=blue!10!black, clip] (0,0) rectangle (' +
str(5*cell_size) + ', ' + str(5*cell_size) + ');\n')
LaTeX.write('\t\\fill[decorate, decoration={random steps, segment length=0.5cm, amplitude=0.3cm}, '
'bottom color=blue!50!black, top color=cyan!50!blue!50!black] (-1,-1) rectangle (' +
str(5*cell_size+1) + ', ' + str(2.5*cell_size) + '12);\n')
for flake in range(500):
snow_x = round(randint(0, 1000)/1000*5*cell_size, 4)
snow_y = round(randint(0, 1000)/1000*5*cell_size, 4)
snow_r = round((randint(0, 35)/20+0.05)*0.1, 4)
# snow_r = 4 + randint(0, 8)
snow_a = randint(0, 14)
# LaTeX.write('\t\\fill[flake] (' + str(snow_x) + ', ' + str(snow_y) + ') circle (' + str(snow_r) + ');\n')
LaTeX.write('\t\\SnowFlake{' + str(snow_x) + '}{' + str(snow_y) + '}{' + str(snow_r) + '}{' + str(snow_a) + '}\n')
for date in dates:
position = positions[randint(0, len(positions)-1)]
width = round((cell_size - 2*border_size)/2, 4)
height = round((cell_size - 2*border_size)/2, 4)
# print(date, position)
if date == 24:
if position % 5 == 4:
position -= 1
width = cell_size - border_size
positions.remove(position+1)
positions.remove(position)
x = round((position % 5)*cell_size+border_size + (randint(0, 100)+25)/300*cell_size, 4)
y = round((position // 5)*cell_size+border_size + (randint(0, 100)+25)/300*cell_size, 4)
# LaTeX.write('\t\\fontsize{' + str(date+13) + '}{' + str(int((date+13)*6/5)) + '}\selectfont\n')
if date > 1:
LaTeX.write('\t\\fill[daybox] (' + str(x) + ', ' +
str(y) + ') rectangle node[daynode] {\\fontsize{' + str(date+13) + '}{' + str(int((date+13)*6/5)) + '}\\selectfont' +
str(date) + '} ++ (' + str(width) + ', ' + str(height) + ');\n')
else:
LaTeX.write('\t\\fill[gray!25] ('+ str(x) + ', ' + str(y) + ') -- ++ (' + str(width) + ', 0) -- ++ (60:' +
str(width/2) + ') -- ++ (0, ' + str(width) + ') -- ++ (240:' + str(width/2) + ') -- ++ (' +
str(-width) + ', 0) -- cycle;\n')
LaTeX.write('\t\\draw[gray!50!black] (' + str(x+width) + ', ' + str(y) + ') -- ++ (0, ' + str(height) + ');\n')
LaTeX.write('\\path[shading=ball, ball color=red] (' + str(x+width/2) + ', ' + str(y+height/2) +
') circle (' + str(width*0.4) + ');\n')
# LaTeX.write('\\spy[yellow] on (' + str(cell_size) + ', ' + str(cell_size) + ') in node at (' + str(2*cell_size) + ', ' + str(2*cell_size) + ');\n')
LaTeX.write('\\end{tikzpicture}\n')
LaTeX.write('\n')
LaTeX.write('\\end{document}')
system('pdflatex Christmas.tex')
system('Christmas.pdf')
生成的 LaTeX 代码示例
\documentclass[tikz, border=2mm]{standalone}
\usepackage{kerkis}
\usetikzlibrary{shapes.geometric,decorations,decorations.pathmorphing, spy}
\newcommand{\SnowFlake}[4]%
{ \draw[rotate=#4, flake, shift={(#1,#2)}]
(0:#3) -- (180:#3)
(60:#3) -- (240:#3)
(120:#3) -- (300:#3)
\foreach \Ray in {0,60,...,300}
{ (\Ray:#3/2) -- ++ (\Ray+60:#3/3) (\Ray:#3/2) -- ++ (\Ray-60:#3/3) };}
\begin{document}
\begin{tikzpicture}
[ font=\bfseries\sffamily,
flake/.style={blue!20, ultra thin},
daybox/.style={white, draw=white, fill opacity=0.15, text opacity=1, dotted},
daynode/.style={circle, fill=white, text=black, fill opacity=0.25, inner sep=3pt},
spy using outlines={circle, size=10cm, connect spies, magnification=5} ]
\fill[inner color=blue!40!black, outer color=blue!10!black, clip] (0,0) rectangle (25, 25);
\fill[decorate, decoration={random steps, segment length=0.5cm, amplitude=0.3cm}, bottom color=blue!50!black, top color=cyan!50!blue!50!black] (-1,-1) rectangle (26, 12.512);
\SnowFlake{4.55}{22.15}{0.035}{3}
... <498 more snow flakes>
\SnowFlake{3.9}{9.725}{0.115}{8}
\fill[daybox] (11.7, 6.9) rectangle node[daynode] {\fontsize{37}{44}\selectfont24} ++ (4.8, 2.3);
... <22 more calendar days>
\fill[daybox] (6.6833, 7.1) rectangle node[daynode] {\fontsize{15}{18}\selectfont2} ++ (2.3, 2.3);
\fill[gray!25] (12.0833, 20.9667) -- ++ (2.3, 0) -- ++ (60:1.15) -- ++ (0, 2.3) -- ++ (240:1.15) -- ++ (-2.3, 0) -- cycle;
\draw[gray!50!black] (14.383299999999998, 20.9667) -- ++ (0, 2.3);
\path[shading=ball, ball color=red] (13.2333, 22.1167) circle (0.92);
\end{tikzpicture}
\end{document}
12月1日产出
12月2日更新：现在有星星了，昨天的红球已经神奇地变成了一个真正的小饰品，第二扇门后面有一个包装好的礼物！如果我每天都发布代码，这个答案会变得太长，所以我只会发布到 24 日的片段然后是整个代码。小图片绘制机制的灵感来自“使用 TikZ 在图像上绘图”
更新第三次：今天是雪人！
更新4：这是一根薄荷味的拐杖糖！
12月5日更新： 天哪，满天都是星星！此外，还出现了一座农舍，天空中出现了一个神秘物体……
更新6日：今天它是一个降临节花环，令人惊讶的是，上面有两根燃烧的蜡烛。
更新7日：今天是巨人饼人！
更新 8日：今天，它是槲寄生！
更新9日：喝点牛奶，吃点饼干（上面有彩色的碎屑）。免责声明：饼干是虚拟的。要享受真正的饼干，请烤一些。分享它们。传播快乐！
更新10：您知道斯瓦尔巴群岛的著名人物吗？
更新11日：铃儿响叮当，铃儿响叮当，一路响个不停……帮助不大杰克。
更新12日：今天是胡桃夹子，产自德国埃尔茨山脉的正品。
12月13日更新：天啊，已经是第三个降临节星期日了吗？
12月14日更新：出门时别忘了戴手套！当然，前提是天气很冷。否则，别忘了涂防晒霜！
12月15日更新：如果你还没有，现在是时候完成你的愿望清单了！
12月16日更新：今天的冬季系列：一顶漂亮温暖的红帽子！
12月17日更新：最后一次机会双子座流星雨今天！
12月18日更新：今天是一株一品红。此外，还出现了许多树木（尽管其中有一些问题需要解决）。提示：查看 PDF。随着时间的推移，树上的雪越来越多 ;-)
12月19日和20日更新：一棵节日树和一个带有 4 根蜡烛的降临节花环。还有看起来更简单、更漂亮的树。
答案3
以下是我对挑战的回应。不幸的是，它有一个缺陷，即缺乏节点碰撞检测，因为我不知道该怎么做，而且关于这个主题的文档的缺乏也帮不上什么忙（如果有人能指导我，我将不胜感激）。
然而这项工作相当繁重（350 行代码！），所以无论如何我都想发布它，即使只是因为这个原因。
每次编译时日期的放置应该是随机的。
输出
代码
\documentclass{standalone}
\usepackage{tikz}
\usepackage{bbding}
\usepackage[weather]{ifsym}
\usepackage{pgf}
\author{Alenanno}
\usetikzlibrary{calc,fit,decorations.pathmorphing,shapes,shadings,shapes.geometric}
\definecolor{darkgreen}{RGB}{0,86,23}
\definecolor{lightbrown}{RGB}{201,154,66}
\definecolor{lightbrownb}{RGB}{201,134,66}
\definecolor{darkbrown}{RGB}{101,67,33}
\definecolor{darkbrownb}{RGB}{43,29,14}
\definecolor{bblue}{RGB}{0,108,217}
\definecolor{dyellow}{RGB}{164,153,149}
\definecolor{lyellow}{RGB}{243,221,197}
\definecolor{dblue}{RGB}{10,11,131}
\definecolor{lblue}{RGB}{10,130,180}
\pgfdeclarelayer{background}
\pgfdeclarelayer{foreground}
\pgfsetlayers{background,main,foreground}
\newcommand{\treex}[2][.2]{
\begin{scope}[shift={(#2)},scale=#1]
\filldraw[draw=none,left color=lightbrown, right color=darkbrownb] (1,-12) -- (1,-14.5)
to[out=-65,in=150] (4.4,-17.2)
to[out=175,in=-45] (2,-16.5)
to[out=-70,in=130] (3,-18)
to[out=160,in=-35] (.8,-17)
to[out=210,in=90] (.2,-18)
to[out=145,in=-90] (-.4,-16.7)
to[out=200,in=10] (-3,-17.5)
to[out=20,in=245] (-.7,-15)
-- (-.7,-12) -- cycle;
\filldraw[darkbrown, opacity=.5] (4.4,-17.2)
to[out=175,in=-45] (2,-16.5)
-- (1,-15.5)
to[out=-45,in=170] cycle;
\filldraw[darkbrown, opacity=.5] (3,-18)
to[out=160,in=-35] (.8,-17)
to[out=210,in=90] (.2,-18)
to[out=90,in=210] (.6,-16.1)
to[out=-30,in=165] cycle;
\filldraw[darkbrown, opacity=.5] (-.4,-16.7)
to[out=200,in=10] (-3,-17.5)
to[out=10,in=250] (-.4,-15.5)
to[out=95,in=90] cycle;
\filldraw[darkgreen] (0,10)
to[out=-65,in=145] (6,3)
to[out=200,in=10] (3.5,2.5)
to[out=-65,in=145] (9.5,-5)
to[out=200,in=10] (5,-6)
to[out=-65,in=145] (11,-11.5)
to[out=200,in=340] (-11,-11.5)
to[out=35,in=245] (-5,-6)
to[out=340,in=170] (-9.5,-5)
to[out=35,in=245] (-3.5,2.5)
to[out=340,in=170] (-6,3)
to[out=35,in=245] cycle;
\end{scope}
}
\newcommand{\snowflake}[2]{
\node[font=\fontsize{#2}{70}, text=gray!20] at (#1) {\Snow};%flakeChevron};
}
\newcommand{\nive}[4][1.2]{
\node[scale=#1*2, text=gray!20] (a) at (#2,#3) {\Snow};
\node[draw=blue!10, dashed, scale=#1, text=red!70!black, font=\bfseries, fill=white,opacity=.5, text opacity=1,outer sep=0, inner sep=0] at (a) {#4};
}
\tikzset{
mountain/.style={darkbrownb, fill=darkbrown, ultra thick},
log/.style={cylinder, draw=darkbrownb, bottom color=darkbrownb, top color=darkbrown, shape aspect=1, minimum width=3mm, minimum height=3.5cm},
c/.style={yshift=-8mm},
d/.style={yshift=#1mm},
ell/.style={ellipse, draw=darkbrown, fill=darkbrown, minimum width=3mm,minimum height=4mm, inner sep=0},
}
\begin{document}
\begin{tikzpicture}
\pgfmathsetseed{\pdfuniformdeviate 10000000}
\useasboundingbox (-7,-5) rectangle (7,5);
% Sky
\fill[top color=blue!40, bottom color=blue!20] (-7,-5) rectangle (7,5);
% Mountains
\draw[mountain] (-7,0) to[out=75,in=210] (-6.6,.4)
to[out=-15,in=175] (-6.4,.35) %%
to[out=75,in=250] (-6.1,.8)
to[out=60,in=180] (-5.6,1.4)
-- (-5.3,.8)
to[out=35,in=220] (-4.4,2.5)
-- (-4.2,2.2)
to[out=45,in=200] (-3.5,3.1)
to[out=-45,in=170] (-2.9,2.6)
to[out=75,in=250] (-1.9,3.9)
to[out=-45,in=110] (-.6,2.2)
to[out=-70,in=110] (.3,.9)
to[out=-15,in=90] (1,0)
-- (1,-4) -- (-7,-4) -- cycle;
\draw[mountain, fill=darkbrownb] (-2.9,2.6)
to[out=75,in=250] (-1.9,3.8) -- (-1.9,1.5)
to[out=195,in=90] (-2.3,.8) -- (-2.7,.8)
to[out=170,in=-65, looseness=1.5] (-3.1,1.6);
\draw[mountain, fill=darkbrownb] (-6.6,.35) to[out=-90,in=90] (-6.4,-.4)
to[out=-90,in=90] (-6.7,-2) -- (-6.7,-3) -- (-7,-3) -- (-7,0) to[out=75,in=210] cycle;
\draw[darkbrownb, ultra thick] (-6.4,.35) to[out=-35,in=170] (-5.4,-.4)
to[out=-45,in=180] (-4.9,-.8);
\draw[darkbrownb, ultra thick] (-6.2,.2) to[out=245,in=90] (-5.9,-.9)
to[out=-90,in=110] (-5.5,-2.4);
\draw[darkbrownb, ultra thick] (-4.8,-.4) to[out=-65,in=145] (-4.3,-1);
\draw[darkbrownb, ultra thick] (-4.9,.9) to[out=-65,in=175] (-4.3,.2);
\draw[darkbrownb, ultra thick] (-4.2,-.5) to[out=110,in=200] (-4,.6)
to[out=30,in=245] (-3.4,1.7) -- (-3.1,1.6);
\fill[white, draw=darkbrownb] (-5.6,1.4) [rounded corners]
to[out=-60,in=110] (-4.7,-.6) [sharp corners]
to[out=145,in=-45] (-5.3,0)
to[out=-95,in=-120] (-5.7,.8)
to[out=60,in=200] cycle;
\fill[white, draw=darkbrownb] (-4.4,2.5)
-- (-4.2,2.2)
to[out=45,in=200] (-3.5,3.1)
to[out=-105,in=140] (-3.4,2)
to[out=-50,in=75] (-3.3,1.7)
to[out=-105,in=-35, looseness=2] (-3.7,1.6) [rounded corners]
to[out=200,in=75] (-4,.8) [sharp corners]
to[out=140,in=-55] (-4.3,1.6) [rounded corners]
to[out=220,in=55] (-4.7,1) [sharp corners]
to[out=95,in=-15] (-4.85,1.6)
to[out=75,in=220] cycle;
\fill[white, draw=darkbrownb] (-1.9,3.9)
to[out=-45,in=110] (-.6,2.2)
to[out=-65,in=120] (-.1,1.6)
to[out=-90,in=-10] (-.4,1.4)
to[out=-90,in=35] (-.5,.8)
to[out=-75,in=85] (-.4,.1)
to[out=175,in=-65, looseness=.5] (-.9,.9)
to[out=115,in=115, looseness=6] (-1.2,.8)
to[out=120,in=-45] (-2,1.4)
-- (-1.8,1.5)
to[out=110,in=15] (-2.8,1.5)
to[out=75,in=210] (-2,3.3)
to[out=30,in=-100, looseness=.5] cycle;
\fill[darkbrownb] (-1.2,2.6) to[out=-45,in=90] (-.7,1.9) to[out=-90,in=-75] cycle;
\fill[darkbrownb] (-1.4,2.3)
to[out=-45,in=90] (-.8,1.4)
to[out=155,in=75, looseness=2] (-1.4,1.6)
to[out=165,in=0] (-1.9,2)
to[out=90,in=180, looseness=.5] (-1.8,2.6)
to[out=0,in=190] cycle;
\draw[mountain] (7,3) to[out=175,in=-15] (5.5,3.5)
-- (5.1,3.2)
to[out=250,in=0] (4.2,2.3)
to[out=250,in=35] (3.6,1.5)
to[out=250,in=45] (3.3,1.1)
to[out=210,in=0] (1,.5)
to[out=230,in=15] (0,0)
to[out=215,in=75] (-2,-2)
-- (7,-2) -- cycle;
\draw[darkbrownb, ultra thick] (1,.5) to[out=-95,in=45] (0,-1);
\fill[darkbrownb, draw=darkbrown] (5.5,3.5) to[out=-85,in=75] (5.3,1.5)
to[out=-35,in=125] (6,.5)
to[out=270,in=65] (5.8,-.5) -- (5,-.8) -- (4.7,-2) -- (2.5,-2) -- (2.5,-1)
to[out=65,in=-90] (3,-.5)
to[out=15,in=-90] (4.2,2.3)
to[out=0,in=250] (5.1,3.2)
-- cycle;
\draw[darkbrownb, sharp corners, thick] (6,.5) to[out=35,in=195] (6.5,1)
to[out=-65,in=120] (6.7,.8)
to[out=-90,in=110] (6.9,0);
\draw[darkbrownb, ultra thick] (5.5,3.5) to[out=-75,in=135] (6,2.5);
\fill[darkbrownb, draw=darkbrown] (-6.5,-3)
to[out=35,in=220] (-2.8,.8)
to[out=0,in=220] (-2.3,1.2)
to[out=-35,in=125] (0,-2)
-- (0,-3) -- cycle;
\draw[mountain] (-2.3,1.2)
to[out=-90,in=90] (-2.2,.8)
to[out=-110,in=120, looseness=1.3] (-1.9,-.7)
to[out=-110,in=110] (-1.7,-2) -- (0,-2)
to[out=125,in=-35] cycle;
\fill[white, draw=darkbrownb] (-3.2,.4)
to[out=-120,in=90] (-3.5,-.4)
to[out=45,in=45, looseness=9] (-3.3,-.5)
to[out=225,in=15] (-4,-1.1)
to[out=90,in=15, looseness=2] (-4.6,-1.5)
to[out=75,in=-45] (-4.3,-.8)
to[out=45,in=220] cycle;
\fill[white, draw=darkbrownb] (4.2,2.3) to[out=-75,in=45] (4.3,1)
to[out=-45,in=-15] (4,.5) to[out=-45,in=120] (4.5,0) -- (4.3,0)
to[out=120,in=-85] (3.5,.6)
to[out=245,in=-145, looseness=6] (3,.7)
to[out=35,in=-75] (3.6,1.5)
to[out=35,in=250] cycle;
\fill[white, draw=darkbrownb] (5.5,3.5) to[out=-95,in=135] (5.8,2.5)
-- (6,2.5) to[out=-75,in=110] (6.5,1.8)
to[out=0,in=-90] (6.5,2.3)
to[out=-45,in=-35, looseness=5] (6.5,2.5)
to[out=45,in=-20] cycle;
% Front view
\fill[draw=none,left color=white,right color=blue!10,middle color=white] (-7,-3) to[out=15,in=180] (1.5,-1.6) to[out=0,in=196] (7,-1)
-- (7,-5) -- (-7,-5) -- cycle;
\draw[blue!10, fill=blue!9] (2,-5) to[out=25,in=0,looseness=2] (1,-2)
to[out=170,in=180, looseness=2] (1,-1.6) -- (1.1,-1.6)
to[out=200,in=180, looseness=1.8] (2,-2)
to[out=0,in=90] (5,-4)
to[out=-90,in=75] (4.8,-5) -- cycle;
% House
\foreach \numb [count=\xi starting from 1] in {-4.5,-4.2,-3.9,-3.6,-3.2,-2.85,-2.45,-2.06,-1.6,-1.2,-.8,-.4,0}{
\coordinate (b) at (-6.7,\numb/2);
\coordinate (c) at (0,\numb/2);
\ifnum\xi>8
\begin{scope}
\path[clip] (-6.8,-1.7) -- (-5.5,-.3) -- (-3.8,-1.9) --cycle;
\draw[bottom color=darkbrownb, top color=darkbrown, darkbrownb] (-3.8,\numb+.3) -- ($([c]b)+(0,1mm)$) arc (90:250:1mm) -- (-3.8,\numb-.3);
\end{scope}
\else
\ifodd\xi
\begin{pgfonlayer}{foreground}
\draw[bottom color=darkbrownb, top color=darkbrown, darkbrownb] (-3.8,\numb+.2) -- ($([c]b)+(0,1mm)$) arc (90:250:1mm) -- (-3.8,\numb-.2);
\draw[darkbrownb, fill=darkbrown] (-3.8,\numb-.2) arc (270:-90:1.5mm and 2mm);
\end{pgfonlayer}
\draw[bottom color=darkbrownb, top color=darkbrown, darkbrownb] (-3.8,\numb+.2) -- ($([c]c)+(0,1mm)$) arc (90:-80:1mm) -- (-3.8,\numb-.2);
\else
\begin{pgfonlayer}{foreground}
\draw[bottom color=darkbrownb, top color=darkbrown, darkbrownb] (-4.1,\numb+.2) -- ($([c]c)+(0,1mm)$) arc (90:-80:1mm) -- (-4.1,\numb-.2);
\draw[darkbrownb, fill=darkbrown] (-4.1,\numb-.2) arc (270:-90:1.5mm and 2mm);
\end{pgfonlayer}
\draw[bottom color=darkbrownb, top color=darkbrown, darkbrownb] (-3.8,\numb+.2) -- ($([c]b)+(0,1mm)$) arc (90:250:1mm) -- (-3.8,\numb-.2);
\fi
\fi
}
\begin{pgfonlayer}{foreground}
\draw[left color=blue!10, right color=white, rounded corners] (-6.8,-1.7) -- (-5.5,-.3) -- (-3.8,-1.9) -- (.3,-1.7) -- (-1.2,-.1) -- (-5.7,-.1) -- (-6.8,-1.4) -- cycle;
\fill[blue!15, rounded corners] (-3.8,-1.85) -- (-3.8,-1.6) -- (-5.4,-.1) --(-5.7,-.1) -- (-6.8,-1.4) -- (-6.8,-1.7) -- (-5.5,-.3) -- (-3.8,-1.9) -- cycle;
\draw[gray,thick, fill=gray!50] (-5.2,-4.5) -- (-6.4,-3.7) -- (-6.4,-2.5)
-- (-6,-2) -- (-6,.5) -- (-5.5,.7) -- (-4.9,.7) -- (-4.9,-2.05) -- (-4.6,-2.7) -- (-4.6,-4.3) -- cycle;
\draw[gray,thick] (-5.2,-4.5) -- (-5.2,-2.8) edge (-4.6,-2.7) -- (-5.5,-2.1) edge (-4.9,-2.05) -- (-5.5,.7);
\filldraw[darkbrownb] (-1.8,-2.08) -- (-1.8,-3.9) --(-2.4,-4.12)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
arc (-90:90:1mm and 1.41mm)
-- cycle;
\fill[darkbrown, draw=darkbrownb] (-1.9,-3.9) -- (-1.8,-3.9)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.3mm)
-- (-1.9,-2.1) -- cycle;
\draw[darkbrownb, fill=blue!50!white!90!black] (-.5,-1.98) -- (-.5,-2.85) -- (-1,-2.97)
arc (-90:90:1mm and 1.2mm)
arc (-90:90:1mm and 1.2mm)
arc (-90:90:1mm and 1.2mm)
arc (-90:90:1mm and 1.2mm)
-- cycle;
\draw[gray!70, ultra thick] (-.75,-2.91) -- (-.75,-2.03);
\draw[gray!70, ultra thick] (-.5,-2.43) -- (-.92,-2.52);
\fill[darkbrown, draw=darkbrownb] (-.5,-2.85) -- (-.4,-2.85)
arc (-90:90:1mm and 1.1mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.1mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.1mm) edge[darkbrownb] ++(-.1,0)
arc (-90:90:1mm and 1.1mm)
-- (-.5,-1.98) -- cycle;
\end{pgfonlayer}
\fill[blue!10] (1.6,-.4) rectangle (1.7,-.3);
\fill[gray!50] (1.65,-.3) to[out=45,in=245, looseness=1.5] (1.6,.5) to[out=230,in=55, looseness=1.5] cycle;
\fill[lyellow] (1,-1) -- (1.4,-.4) -- (1.8,-1) -- (1.8,-1.8) -- (1,-1.8) -- cycle;
\fill[dyellow] (1.8,-1) -- (2.8,-1) -- (2.8,-1.8) -- (1.8,-1.8) -- cycle;
\fill[left color=blue!50,right color=blue!10, rounded corners] (1.4,-.4) -- (1.8,-1.1) -- (2.9,-1.1) -- (2.5,-.4) -- cycle;
\fill[blue!10, rounded corners] (1.4,-.4) -- (.9,-1) -- (1,-1) -- (1.5,-.4) -- cycle;
\fill[blue!30] (1.3,-1) rectangle (1.5,-.8);
\fill[blue!30] (2,-1.6) rectangle (2.6,-1.2);
\fill[darkbrown] (1.3,-1.6) rectangle (1.5,-1.4);
\node[cloud, cloud puffs=15.7, fill=blue!10,
minimum width=3cm, draw, minimum height=1.24cm] (cloud) at (-4,4) {};
% Trees
\treex[.15]{6.4,-.5}
\treex[.1]{4,-.5}
% Snowman
\fill[outer color=blue!10, inner color=white] (1.5,-3.8) circle (6mm);
\draw[darkbrownb, thick] (1.2,-2.9) --++ (-.6,-.3);
\fill[outer color=blue!10, inner color=white] (1.5,-3) circle (5mm);
\foreach \button in {-2.9,-3,-3.1}{
\fill[black] (1.4,\button) circle (1.3pt);
}
\draw[darkbrownb, thick] (1.8,-3) --++ (.5,-.5);
\fill[outer color=blue!10, inner color=white] (1.5,-2.3) circle (4mm);
\begin{pgfonlayer}{foreground}
% Snowflakes
\foreach \point in {1,...,400}{
\pgfmathparse{rand}
\pgfmathsetmacro\psx{-7*\pgfmathresult}
\pgfmathparse{rand}
\pgfmathsetmacro\psy{-5*\pgfmathresult}
\pgfmathrandom{1,10}
\let\pointwidth\pgfmathresult
\node[font=\fontsize{\pointwidth}{70}, text=gray!20] at (\psx,\psy) {\Snow};
}
% Snowdays
\foreach \giorno in {1,2,...,24}{
\pgfmathparse{rand}
\pgfmathsetmacro\xpos{5*\pgfmathresult}
\pgfmathparse{rand}
\pgfmathsetmacro\ypos{4.5*\pgfmathresult}
%\pgfmathrandom{0.1,1.75}
%\let\pointwidth\pgfmathresult
\ifnum\giorno<24
\nive{\xpos}{\ypos}{\giorno}
\else
\nive[2]{\xpos}{\ypos}{\giorno}
\fi
}
\end{pgfonlayer}
\end{tikzpicture}
\end{document}