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20240407101327-emacs_调用matplotlib画图_并存储到windows的临时文件夹中.html
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<h1 class="title">+emacs+调用matplotlib画图，并存储到Windows的临时文件夹中</h1>
<p>
<span class="timestamp-wrapper"><span class="timestamp">[2024-04-07 周日 10:13]</span></span><br />
</p>
<p>
根据已有表格绘图，在表格上方标注名称，如：<br />
</p>
<div class="org-src-container">
<pre class="src src-org"><span style="color: #a89984;">#+NAME: myTimeTable</span>
<span style="color: #076678; background-color: #ebdbb2;">|1|2|</span>
<span style="color: #076678; background-color: #ebdbb2;">|-+-|</span>
<span style="color: #076678; background-color: #ebdbb2;">|3|4|</span>
</pre>
</div>
<p>
在python代码行的header里传入表格数据（在我用的org 9.6.14中数据会自动去除标题行和分割行，只剩下面的数据行）：<br />
</p>
<div class="org-src-container">
<pre class="src src-python"><span style="color: #a89984;">#</span><span style="color: #a89984;">+begin_src python :results file link :var data=myTimeTable</span>
<span style="color: #9d0006;">import</span> os,matplotlib, numpy
……
<span style="color: #076678;">savedir</span> = os.getenv<span style="color: #458588;">(</span><span style="color: #79740e;">'TEMP'</span><span style="color: #458588;">)</span>+<span style="color: #79740e;">'</span><span style="color: #8f3f71;">\\</span><span style="color: #79740e;">myTimeTable.png'</span>
plt.savefig<span style="color: #458588;">(</span>savedir<span style="color: #458588;">)</span>
<span style="color: #9d0006;">return</span> savedir
</pre>
</div>
<p>
会把代码块上方的name动态传入到代码中<br />
</p>
<div class="org-src-container">
<pre class="src src-python"><span style="color: #a89984;">#</span><span style="color: #a89984;">+name: 代码块name</span>
<span style="color: #a89984;">#</span><span style="color: #a89984;">+begin_src python :var filename=(org-element-property :name (org-element-context)) :results file link</span>
<span style="color: #9d0006;">import</span> os,matplotlib, numpy
……
<span style="color: #076678;">savedir</span> = os.getenv<span style="color: #458588;">(</span><span style="color: #79740e;">'TEMP'</span><span style="color: #458588;">)</span>+<span style="color: #79740e;">'</span><span style="color: #8f3f71;">\\</span><span style="color: #79740e;">'</span>+filename+<span style="color: #79740e;">'.png'</span>
plt.savefig<span style="color: #458588;">(</span>savedir<span style="color: #458588;">)</span>
<span style="color: #9d0006;">return</span> savedir
</pre>
</div>
<p>
运行后会在下方生成<br />
</p>
<div class="org-src-container">
<pre class="src src-org"><span style="color: #a89984;">#+RESULTS:</span>
<span style="color: #689d6a; text-decoration: underline;"><a href="file:..../XXX.png">file:..../XXX.png</a></span>
</pre>
</div>
<p>
的图片，可以配合inline 图片相关函数使用<br />
</p>
<div class="org-src-container">
<pre class="src src-elisp"><span style="color: #a89984;">;; </span><span style="color: #a89984;">(setq org-startup-with-inline-images t)</span>
<span style="color: #a89984;">;;; </span><span style="color: #a89984;">Only display inline images under current subtree.</span>
<span style="color: #458588;">(</span><span style="color: #9d0006;">defun</span> <span style="color: #b57614;">org-display-subtree-inline-images</span> <span style="color: #b16286;">(</span><span style="color: #8f3f71;">&optional</span> state<span style="color: #b16286;">)</span>
<span style="color: #79740e;">"Toggle the display of inline images under current subtree.</span>
<span style="color: #79740e;">INCLUDE-LINKED is passed to `</span><span style="color: #8f3f71;">org-display-inline-images</span><span style="color: #79740e;">'."</span>
<span style="color: #b16286;">(</span><span style="color: #9d0006;">interactive</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span><span style="color: #9d0006;">save-excursion</span>
<span style="color: #8ec07c;">(</span><span style="color: #9d0006;">save-restriction</span>
<span style="color: #d65d0e;">(</span>org-narrow-to-subtree<span style="color: #d65d0e;">)</span>
<span style="color: #d65d0e;">(</span><span style="color: #9d0006;">let*</span> <span style="color: #458588;">(</span><span style="color: #b16286;">(</span>beg <span style="color: #8ec07c;">(</span>point-min<span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span>end <span style="color: #8ec07c;">(</span>point-max<span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span>image-overlays <span style="color: #8ec07c;">(</span>cl-intersection
org-inline-image-overlays
<span style="color: #d65d0e;">(</span>overlays-in beg end<span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span>display-inline-images-local
<span style="color: #8ec07c;">(</span><span style="color: #9d0006;">lambda</span> <span style="color: #d65d0e;">()</span>
<span style="color: #d65d0e;">(</span>org-display-inline-images t t beg end<span style="color: #d65d0e;">)</span>
<span style="color: #d65d0e;">(</span><span style="color: #9d0006;">setq</span> image-overlays <span style="color: #458588;">(</span>cl-intersection
org-inline-image-overlays
<span style="color: #458588;">(</span>overlays-in beg end<span style="color: #458588;">)</span><span style="color: #458588;">)</span><span style="color: #d65d0e;">)</span>
<span style="color: #d65d0e;">(</span><span style="color: #9d0006;">if</span> <span style="color: #458588;">(</span><span style="color: #9d0006;">and</span> <span style="color: #458588;">(</span>org-called-interactively-p<span style="color: #458588;">)</span> image-overlays<span style="color: #458588;">)</span>
<span style="color: #458588;">(</span>message <span style="color: #79740e;">"%d images displayed inline"</span>
<span style="color: #458588;">(</span>length image-overlays<span style="color: #458588;">)</span><span style="color: #458588;">)</span><span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span>hide-inline-images-local
<span style="color: #8ec07c;">(</span><span style="color: #9d0006;">lambda</span> <span style="color: #d65d0e;">()</span>
<span style="color: #d65d0e;">(</span>org-remove-inline-images<span style="color: #d65d0e;">)</span>
<span style="color: #d65d0e;">(</span>message <span style="color: #79740e;">"Inline image display turned off"</span><span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span><span style="color: #458588;">)</span>
<span style="color: #458588;">(</span><span style="color: #9d0006;">if</span> state
<span style="color: #b16286;">(</span><span style="color: #9d0006;">pcase</span> state
<span style="color: #8ec07c;">(</span>'subtree
<span style="color: #d65d0e;">(</span>funcall display-inline-images-local<span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span>
<span style="color: #8ec07c;">(</span>'folded
<span style="color: #d65d0e;">(</span>funcall hide-inline-images-local<span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span>
<span style="color: #b16286;">(</span><span style="color: #9d0006;">if</span> image-overlays
<span style="color: #8ec07c;">(</span>funcall display-inline-images-local<span style="color: #8ec07c;">)</span>
<span style="color: #8ec07c;">(</span>funcall hide-inline-images-local<span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span><span style="color: #458588;">)</span><span style="color: #d65d0e;">)</span><span style="color: #8ec07c;">)</span><span style="color: #b16286;">)</span><span style="color: #458588;">)</span>
<span style="color: #458588;">(</span>define-key org-mode-map <span style="color: #b16286;">(</span>kbd <span style="color: #79740e;">"C-c C-x C-v"</span><span style="color: #b16286;">)</span> 'org-display-subtree-inline-images<span style="color: #458588;">)</span>
<span style="color: #a89984;">;;; </span><span style="color: #a89984;">auto display inline images on Org TAB cycle expand headlines.</span>
<span style="color: #458588;">(</span>add-hook 'org-cycle-hook #'org-display-subtree-inline-images<span style="color: #458588;">)</span>
<span style="color: #458588;">(</span>add-hook 'org-babel-after-execute-hook 'org-redisplay-inline-images<span style="color: #458588;">)</span>
</pre>
</div>
<p>
参考：<a href="https://emacs-china.org/t/org-link/13502/6">https://emacs-china.org/t/org-link/13502/6</a><br />
</p>
<div id="outline-container-orgc1857e0" class="outline-2">
<h2 id="orgc1857e0"><span class="section-number-2">1.</span> 通过代码块引用的方式重复使用部分代码</h2>
<div class="outline-text-2" id="text-1">
<p>
在代码块上方加上 <code>#+NAME: line-plot</code> ，然后在需要引用的代码块上加上 <code>:noweb yes</code> 参数，再在内部通过 <code><<pie-plot>></code> 的方式即可复用代码。<br />
</p>
</div>
</div>
</div>
<div id="postamble" class="status">
<p>▲ 编辑于 <span class="timestamp-wrapper"><span class="timestamp">[2024-12-31 周二 15:26]</span></span> | © Published by <a href="https://www.gnu.org/software/emacs/">Emacs</a> 31.0.50 (<a href="https://orgmode.org">Org</a> mode 9.7.18) on <span class="timestamp-wrapper"><span class="timestamp">[2025-01-02 周四 15:00]</span></span> | <a href="https://tomoemami.github.io/rss.xml">RSS</a></p>
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