9 \title{Sandbox} |
9 \title{Sandbox} |
10 \begin{document} |
10 \begin{document} |
11 |
11 |
12 \newcommand{\vertex}{node[circle,fill=black,inner sep=1pt] {}} |
12 \newcommand{\vertex}{node[circle,fill=black,inner sep=1pt] {}} |
13 |
13 |
14 \begin{tikzpicture} |
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15 \coordinate (P) at (0,0); |
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16 \coordinate (Q) at (3,0); |
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17 \coordinate (R) at (1.5,-0.5); |
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18 \draw (P) \vertex to[out=40,in=140] node[above] {$a$} (Q) \vertex -- node[below] {\scriptsize $y \times I$} (R) \vertex to[out=-180,in=-40] node[below] {$a$} (P); |
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19 \clip (P) to[out=40,in=140] (Q) -- (R) to[out=-180,in=-40] (P); |
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20 \foreach \x in {1,...,9} { |
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21 \path (P) to[out=40,in=140] node[pos=\x/10] (PQ\x) {} (Q); |
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22 \path (P) to[out=-40,in=-180] node[pos=\x/10] (PR\x) {} (R); |
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23 \draw[green!50!brown] (PQ\x.center) -- (PR\x.center); |
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24 } |
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25 \end{tikzpicture} |
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26 |
14 |
27 \begin{tikzpicture} |
15 \begin{tikzpicture} |
28 \node[circle,fill=black,inner sep=1pt] (A) at (1.73,0) {}; |
16 \node[circle,fill=black,inner sep=1pt] (A) at (1.73,0) {}; |
29 \node[circle,fill=black,inner sep=1pt] (B) at (-1.73,0) {}; |
17 \node[circle,fill=black,inner sep=1pt] (B) at (-1.73,0) {}; |
30 \draw[dashed] (A) -- (B); |
18 \draw[dashed] (A) -- (B); |
46 \end{scope} |
34 \end{scope} |
47 \end{scope} |
35 \end{scope} |
48 \begin{scope} |
36 \begin{scope} |
49 \path[clip] (0,1) circle (2); |
37 \path[clip] (0,1) circle (2); |
50 \path[clip] (0,-1) circle (2); |
38 \path[clip] (0,-1) circle (2); |
51 |
39 \foreach \n in {1,...,6} { |
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40 \path (B) to[out=0,in=-180] node[coordinate,pos=\n/6] (BC\n) {} (C); |
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41 \draw[green!50!brown] (BC\n) -- +(0,1); |
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42 \draw[green!50!brown] (BC\n) -- +(-1.5,-1); |
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43 } |
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44 \foreach \n in {0,...,6} { |
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45 \path (C) to[out=0,in=-180] node[coordinate,pos=\n/6] (CD\n) {} (D); |
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46 \path (L1) to[out=-30,in=-180] node[coordinate,pos=\n/6] (L1L2\n) {} (L2); |
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47 \draw[blue] (CD\n) -- (L1L2\n); |
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48 } |
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49 \foreach \n in {0,...,6} { |
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50 \path (L1) to[out=40,in=-140] node[coordinate,pos=\n/6] (L1C\n) {} (C); |
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51 \path (L2) to[out=50,in=-130] node[coordinate,pos=\n/6] (L2D\n) {} (D); |
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52 \draw[blue] (L1C\n) -- (L2D\n); |
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53 } |
52 \end{scope} |
54 \end{scope} |
53 \end{tikzpicture} |
55 \end{tikzpicture} |
54 \end{document} |
56 \end{document} |