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删除 tikzpicture 上方的垂直空间

tag-icon • tag-icon tikz-pgf
删除 tikzpicture 上方的垂直空间

我试图将两张 tikzpicture 放在一起，但左边那张上面出现了垂直空间！有没有什么办法可以消除这个空间？

\begin{tikzpicture}
\draw [solid] (0,0) -- (0,6);
\draw [solid] (0,0) -- (6.6,0);
\draw [solid] (0,5.5) -- (0.5,5.5);
\draw [solid] (0,3.5) -- (3,3.5);
\draw [solid] (0.5,2) -- (0.5,5.5);
\draw [solid] (0.5,2) -- (4,2);
\draw [solid] (3,.7) -- (3,3.5);
\draw [solid] (3,.7) -- (6.5,.7);
\draw [solid] (4,0) -- (4,2);
\draw [solid] (6.5,0) -- (6.5,.7);
% draw vertical lines
\foreach \x in {0,0.5,3,4,6.5}
\draw (\x cm,3pt) -- (\x cm,-3pt);
\foreach \x/\descr in {0/0,0.5/C_1,3/C_2,4/C_3, 6.5/C_4}
\node[font=\scriptsize, text height=1.75ex,
text depth=.5ex] at (\x,-.3) {$\descr$};
\node[text width=3cm, anchor=west, right] at (-0.1,3.7){$p_1$};
\node[text width=3cm, anchor=west, right] at (-0.7,4.5){$w_1$};
\node[text width=3cm, anchor=west, right] at (-0.1,2.7){$w_2$};
\node[text width=3cm, anchor=west, right] at (1.2,2.2){$p_2$};
\node[text width=3cm, anchor=west, right] at (2.3,1.3){$w_3$};
\node[text width=3cm, anchor=west, right] at (3.1,0.9){$p_3$};
\node[text width=3cm, anchor=west, right] at (3.35,0.36){$w_4$};
\node[text width=3cm, anchor=west, right] at (4.8,0.18){$p_4$};
\end{tikzpicture}
\begin{tikzpicture}
\draw[color=red!20, line width=13.6pt] 
(1.25,3.52) -- (1.25,5.49);
\draw[color=yellow!40, line width=85pt] 
(2.5,2.01) -- (2.5,3.49);
\draw[color=green!35, line width=113pt] 
(3,0.71) -- (3,1.99);
\draw[color=blue!25, line width=184.5pt] 
(4.247,0) -- (4.247,0.7);
\draw [solid] (1,0) -- (1,6);
\draw [solid] (1,0) -- (8.3,0);
\draw [solid] (1,5.5) -- (1.5,5.5);
\draw [solid] (1,3.5) -- (4,3.5);
\draw [solid] (1.5,2) -- (1.5,5.5);
\draw [solid] (1,2) -- (5,2);
\draw [solid] (4,.7) -- (4,3.5);
\draw [solid] (1,.7) -- (7.5,.7);
\draw [solid] (5,0) -- (5,2);
\draw [solid] (7.5,0) -- (7.5,.7);
% draw vertical lines
\foreach \x in {1,1.5,4,5,7.5}
\draw (\x cm,3pt) -- (\x cm,-3pt);
\foreach \x/\descr in {1/0,1.5/C_1,4/C_2,5/C_3, 7.5/C_4}
\node[font=\scriptsize, text height=1.75ex,
text depth=.5ex] at (\x,-.3) {$\descr$};
\node[text width=3cm, anchor=west, right] at (0.9,3.7){$p_1$};
\node[text width=3cm, anchor=west, right] at (0.3,4.5){$w_1$};
\node[text width=3cm, anchor=west, right] at (0.3,2.7){$w_2$};
\node[text width=3cm, anchor=west, right] at (2.2,2.2){$p_2$};
\node[text width=3cm, anchor=west, right] at (0.3,1.3){$w_3$};
\node[text width=3cm, anchor=west, right] at (4.1,0.9){$p_3$};
\node[text width=3cm, anchor=west, right] at (0.3,0.36){$w_4$};
\node[text width=3cm, anchor=west, right] at (5.8,0.18){$p_4$};
\end{tikzpicture}

在此处输入图片描述

答案1

正如我在评论中所说，这里的问题是，当你用 画一条线时line width=X，边界框会比每条线的末端延伸 X/2。所以当你这样做时

\draw[color=blue!25, line width=184.5pt]  (4.247,0) -- (4.247,0.7);

该线的边界框在 y=0 下方延伸 92.25pt。添加\draw (current bounding box.south east) rectangle (current bounding box.north west);以绘制图表的轮廓，您会看到右侧图表有很多空白。

除了使用不同的技术来绘制彩色矩形（例如）之外\fill[blue!25] (1,0) rectangle +(184.5pt, 0.7);，最简单的解决方法可能就是overlay向这些线条添加选项，例如

\draw[color=blue!25, line width=184.5pt, overlay] (4.247,0) -- (4.247,0.7);

添加overlay到路径后，计算边界框时不会考虑该路径。

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