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<div class="section" id="font-indexing">
<span id="sphx-glr-gallery-misc-font-indexing-py"></span><h1>Font Indexing<a class="headerlink" href="#font-indexing" title="Permalink to this headline">¶</a></h1>
<p>A little example that shows how the various indexing into the font
tables relate to one another. Mainly for mpl developers….</p>
<p class="sphx-glr-script-out">Out:</p>
<div class="sphx-glr-script-out highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">519</span><span class="p">,</span> <span class="mi">576</span><span class="p">)</span>
<span class="mi">36</span> <span class="mi">57</span> <span class="mi">65</span> <span class="mi">86</span>
<span class="n">AV</span> <span class="mi">0</span>
<span class="n">AV</span> <span class="mi">0</span>
<span class="n">AV</span> <span class="mi">0</span>
<span class="n">AV</span> <span class="mi">0</span>
</pre></div>
</div>
<div class="line-block">
<div class="line"><br /></div>
</div>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">matplotlib</span>
<span class="kn">from</span> <span class="nn">matplotlib.ft2font</span> <span class="kn">import</span> <span class="n">FT2Font</span><span class="p">,</span> <span class="n">KERNING_DEFAULT</span><span class="p">,</span> <span class="n">KERNING_UNFITTED</span><span class="p">,</span> <span class="n">KERNING_UNSCALED</span>
<span class="n">fname</span> <span class="o">=</span> <span class="n">matplotlib</span><span class="o">.</span><span class="n">get_data_path</span><span class="p">()</span> <span class="o">+</span> <span class="s1">'/fonts/ttf/DejaVuSans.ttf'</span>
<span class="n">font</span> <span class="o">=</span> <span class="n">FT2Font</span><span class="p">(</span><span class="n">fname</span><span class="p">)</span>
<span class="n">font</span><span class="o">.</span><span class="n">set_charmap</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">codes</span> <span class="o">=</span> <span class="n">font</span><span class="o">.</span><span class="n">get_charmap</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
<span class="c1">#dsu = [(ccode, glyphind) for ccode, glyphind in codes]</span>
<span class="c1">#dsu.sort()</span>
<span class="c1">#for ccode, glyphind in dsu:</span>
<span class="c1"># try: name = font.get_glyph_name(glyphind)</span>
<span class="c1"># except RuntimeError: pass</span>
<span class="c1"># else: print('% 4d % 4d %s %s' % (glyphind, ccode, hex(int(ccode)), name))</span>
<span class="c1"># make a charname to charcode and glyphind dictionary</span>
<span class="n">coded</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">glyphd</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">ccode</span><span class="p">,</span> <span class="n">glyphind</span> <span class="ow">in</span> <span class="n">codes</span><span class="p">:</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">font</span><span class="o">.</span><span class="n">get_glyph_name</span><span class="p">(</span><span class="n">glyphind</span><span class="p">)</span>
<span class="n">coded</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">ccode</span>
<span class="n">glyphd</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">glyphind</span>
<span class="n">code</span> <span class="o">=</span> <span class="n">coded</span><span class="p">[</span><span class="s1">'A'</span><span class="p">]</span>
<span class="n">glyph</span> <span class="o">=</span> <span class="n">font</span><span class="o">.</span><span class="n">load_char</span><span class="p">(</span><span class="n">code</span><span class="p">)</span>
<span class="k">print</span><span class="p">(</span><span class="n">glyph</span><span class="o">.</span><span class="n">bbox</span><span class="p">)</span>
<span class="k">print</span><span class="p">(</span><span class="n">glyphd</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">glyphd</span><span class="p">[</span><span class="s1">'V'</span><span class="p">],</span> <span class="n">coded</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">coded</span><span class="p">[</span><span class="s1">'V'</span><span class="p">])</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'AV'</span><span class="p">,</span> <span class="n">font</span><span class="o">.</span><span class="n">get_kerning</span><span class="p">(</span><span class="n">glyphd</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">glyphd</span><span class="p">[</span><span class="s1">'V'</span><span class="p">],</span> <span class="n">KERNING_DEFAULT</span><span class="p">))</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'AV'</span><span class="p">,</span> <span class="n">font</span><span class="o">.</span><span class="n">get_kerning</span><span class="p">(</span><span class="n">glyphd</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">glyphd</span><span class="p">[</span><span class="s1">'V'</span><span class="p">],</span> <span class="n">KERNING_UNFITTED</span><span class="p">))</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'AV'</span><span class="p">,</span> <span class="n">font</span><span class="o">.</span><span class="n">get_kerning</span><span class="p">(</span><span class="n">glyphd</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">glyphd</span><span class="p">[</span><span class="s1">'V'</span><span class="p">],</span> <span class="n">KERNING_UNSCALED</span><span class="p">))</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'AV'</span><span class="p">,</span> <span class="n">font</span><span class="o">.</span><span class="n">get_kerning</span><span class="p">(</span><span class="n">glyphd</span><span class="p">[</span><span class="s1">'A'</span><span class="p">],</span> <span class="n">glyphd</span><span class="p">[</span><span class="s1">'T'</span><span class="p">],</span> <span class="n">KERNING_UNSCALED</span><span class="p">))</span>
</pre></div>
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