37 lines
1.5 KiB
TeX
37 lines
1.5 KiB
TeX
\begin{tikzpicture}[scale = \tikzscale], line width = 1pt]
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\def\rect#1#2#3{
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\draw (0, 0, 0) -- (#1, 0, 0) -- (#1, #2, 0) -- (0, #2, 0) -- cycle;
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\draw[ ] (#1, 0, -#3) -- (#1, #2, -#3) -- (0, #2, -#3);
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\draw[dashed] (#1, 0, -#3) -- (0, 0, -#3) -- (0, #2, -#3);
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\draw[dashed] (0, 0, 0) -- (0, 0, -#3);
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\draw[ ] (0, #2, 0) -- (0, #2, -#3);
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\draw[ ] (#1, 0, 0) -- (#1, 0, -#3);
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\draw[ ] (#1, #2, 0) -- (#1, #2, -#3);
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}
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\begin{scope}[yshift = 1cm, line width = 1pt]
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\rect{1.5}{1}{2}
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\node[font = \boldmath] at (1, 0.5) {$\ten{R}(\ten{X})$};
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\end{scope}
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\rect{3}{2}{4}
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\node at (2, 0.5) {$\ten{X} - \E\ten{X}$};
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\draw[lightgray, line width = 0.7pt] (-2.1, 2) arc (180:270:2);
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\draw[fill = lightgray, fill opacity = 0.7] (-2.1, 1) rectangle +(2, 1)
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node [pos = 0.5] {$\t{\mat{\beta}_1}$};
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\draw[lightgray, line width = 0.7pt, domain = 0:1, smooth, variable = \t]
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plot ({0}, {2.1 + 4 * cos(90 * \t)}, {-4 * sin(90 * \t)});
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\draw[fill = lightgray, fill opacity = 0.7]
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(0, 2.1, 0) -- (0, 2.1, -2) -- (0, 6.1, -2) -- (0, 6.1, 0) -- cycle;
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\node[opacity = 0.7, cm={0.66, 0.66, 0, 1, (0, 0)}]
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at (0, 4.1, -1.1) {$\t{\mat{\beta}_3}$};
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\draw[lightgray, line width = 0.7pt] (0, 5.1) arc (90:0:3);
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\draw[fill = lightgray, fill opacity = 0.7] (0, 2.1) rectangle +(1.5, 3)
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node [pos = 0.5] {$\t{\mat{\beta}_2}$};
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\end{tikzpicture}
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