ubuntu系统下matplotlib中文乱码问题的解决方法
<p>在ubuntu 下利用matplotlib 绘图的时候，图像上中文无法显示。以下是我的解决办法：</p>
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1. 下载中文字体simhei.ttf, 网址为http://fontzone.net/download/simhei</p>
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2. 搜索 matplotlib 字体的安装位置</p>
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<code class="bash plain">$</code><code class="bash functions">locate</code> <code class="bash plain">-b </code><code class="bash string">'\mpl-data'</code>
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会得到 这个路径/usr/share/matplotlib/mpl-data下面有fonts/ttf这个目录，进入这个目录，把刚才下载的simhei.ttf 字体复制到这个目录下，注意权限和归属是否与其它字体一致，我的是归于root用户的，所以用root 用户复制过来。</p>
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3. 删除当前用户matplotlib 的缓冲文件（如果没有直接进入第四步）</p>
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<code class="bash plain">$</code><code class="bash functions">cd</code> <code class="bash plain">~/.cache</code><code class="bash plain">/matplotlib</code>
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<code class="bash plain">$</code><code class="bash functions">rm</code> <code class="bash plain">-rf *.*</code>
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4.代码中调整字体</p>
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<code class="py comments">#!/usr/bin/env python</code>
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<code class="py comments">#coding:utf-8</code>
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<code class="py comments">"""a demo of matplotlib"""</code>
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<code class="py keyword">import</code> <code class="py plain">matplotlib as mpl</code>
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<code class="py keyword">from</code> <code class="py plain">matplotlib </code><code class="py keyword">import</code> <code class="py plain">pyplot as plt</code>
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<code class="py plain">mpl.rcParams </code><code class="py keyword">=</code> <code class="py plain">[</code><code class="py string">'simhei'</code><code class="py plain">]</code>
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<code class="py plain">mpl.rcParams[</code><code class="py string">'axes.unicode_minus'</code><code class="py plain">] </code><code class="py keyword">=</code> <code class="py color1">False</code>
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<code class="py plain">years </code><code class="py keyword">=</code> <code class="py plain">[</code><code class="py value">1950</code><code class="py plain">, </code><code class="py value">1960</code><code class="py plain">, </code><code class="py value">1970</code><code class="py plain">, </code><code class="py value">1980</code><code class="py plain">, </code><code class="py value">1990</code><code class="py plain">, </code><code class="py value">2000</code><code class="py plain">, </code><code class="py value">2010</code><code class="py plain">]</code>
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<code class="py plain">gdp </code><code class="py keyword">=</code> <code class="py plain">[</code><code class="py value">300.2</code><code class="py plain">, </code><code class="py value">543.3</code><code class="py plain">, </code><code class="py value">1075.9</code><code class="py plain">, </code><code class="py value">2862.5</code><code class="py plain">, </code><code class="py value">5979.6</code><code class="py plain">, </code><code class="py value">10289.7</code><code class="py plain">, </code><code class="py value">14958.3</code><code class="py plain">]</code>
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<code class="py comments">#创建一副线图,x轴是年份,y轴是gdp</code>
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<code class="py plain">plt.plot(years, gdp, color</code><code class="py keyword">=</code><code class="py string">'green'</code><code class="py plain">, marker</code><code class="py keyword">=</code><code class="py string">'o'</code><code class="py plain">, linestyle</code><code class="py keyword">=</code><code class="py string">'solid'</code><code class="py plain">)</code>
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<code class="py comments">#添加一个标题</code>
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<code class="py plain">plt.title(u</code><code class="py string">'名义GDP'</code><code class="py plain">)</code>
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<code class="py comments">#给y轴加标记</code>
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<code class="py plain">plt.ylabel(u</code><code class="py string">'十亿美元'</code><code class="py plain">)</code>
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<code class="py plain">plt.show()</code>
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其中#coding:utf-8 说明文件编码格式</li>
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mpl.rcParams = ['simhei'] 用simhei 字体显示中文</li>
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mpl.rcParams['axes.unicode_minus'] = False 这个用来正常显示负号</li>
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plt.title(u'名义GDP')这里的u 最好不要少</li>
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p>
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原文链接：http://blog.csdn.net/jeff_liu_sky_/article/details/54023745</p>
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