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<div class="section" id="pylab-examples-example-code-demo-agg-filter-py">
<span id="pylab-examples-demo-agg-filter"></span><h1>pylab_examples example code: demo_agg_filter.py<a class="headerlink" href="#pylab-examples-example-code-demo-agg-filter-py" title="Permalink to this headline">ΒΆ</a></h1>
<p>(<a class="reference external" href="../../mpl_examples/pylab_examples/demo_agg_filter.py">Source code</a>, <a class="reference external" href="../../mpl_examples/pylab_examples/demo_agg_filter.png">png</a>, <a class="reference external" href="../../mpl_examples/pylab_examples/demo_agg_filter.hires.png">hires.png</a>, <a class="reference external" href="../../mpl_examples/pylab_examples/demo_agg_filter.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../../_images/demo_agg_filter.png" src="../../_images/demo_agg_filter.png" />
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<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="kn">as</span> <span class="nn">plt</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
<span class="kn">import</span> <span class="nn">matplotlib.cm</span> <span class="kn">as</span> <span class="nn">cm</span>
<span class="kn">import</span> <span class="nn">matplotlib.mlab</span> <span class="kn">as</span> <span class="nn">mlab</span>
<span class="k">def</span> <span class="nf">smooth1d</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">window_len</span><span class="p">):</span>
<span class="c"># copied from http://www.scipy.org/Cookbook/SignalSmooth</span>
<span class="n">s</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">r_</span><span class="p">[</span><span class="mi">2</span><span class="o">*</span><span class="n">x</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">-</span><span class="n">x</span><span class="p">[</span><span class="n">window_len</span><span class="p">:</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">],</span><span class="n">x</span><span class="p">,</span><span class="mi">2</span><span class="o">*</span><span class="n">x</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span><span class="o">-</span><span class="n">x</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="n">window_len</span><span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">]]</span>
<span class="n">w</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">hanning</span><span class="p">(</span><span class="n">window_len</span><span class="p">)</span>
<span class="n">y</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">convolve</span><span class="p">(</span><span class="n">w</span><span class="o">/</span><span class="n">w</span><span class="o">.</span><span class="n">sum</span><span class="p">(),</span><span class="n">s</span><span class="p">,</span><span class="n">mode</span><span class="o">=</span><span class="s">'same'</span><span class="p">)</span>
<span class="k">return</span> <span class="n">y</span><span class="p">[</span><span class="n">window_len</span><span class="o">-</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="n">window_len</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">smooth2d</span><span class="p">(</span><span class="n">A</span><span class="p">,</span> <span class="n">sigma</span><span class="o">=</span><span class="mi">3</span><span class="p">):</span>
<span class="n">window_len</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">sigma</span><span class="p">),</span> <span class="mi">3</span><span class="p">)</span><span class="o">*</span><span class="mi">2</span><span class="o">+</span><span class="mi">1</span>
<span class="n">A1</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">smooth1d</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">window_len</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">np</span><span class="o">.</span><span class="n">asarray</span><span class="p">(</span><span class="n">A</span><span class="p">)])</span>
<span class="n">A2</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">transpose</span><span class="p">(</span><span class="n">A1</span><span class="p">)</span>
<span class="n">A3</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">smooth1d</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">window_len</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">A2</span><span class="p">])</span>
<span class="n">A4</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">transpose</span><span class="p">(</span><span class="n">A3</span><span class="p">)</span>
<span class="k">return</span> <span class="n">A4</span>
<span class="k">class</span> <span class="nc">BaseFilter</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">prepare_image</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">src_image</span><span class="p">,</span> <span class="n">dpi</span><span class="p">,</span> <span class="n">pad</span><span class="p">):</span>
<span class="n">ny</span><span class="p">,</span> <span class="n">nx</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="n">src_image</span><span class="o">.</span><span class="n">shape</span>
<span class="c">#tgt_image = np.zeros([pad*2+ny, pad*2+nx, depth], dtype="d")</span>
<span class="n">padded_src</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">([</span><span class="n">pad</span><span class="o">*</span><span class="mi">2</span><span class="o">+</span><span class="n">ny</span><span class="p">,</span> <span class="n">pad</span><span class="o">*</span><span class="mi">2</span><span class="o">+</span><span class="n">nx</span><span class="p">,</span> <span class="n">depth</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="s">"d"</span><span class="p">)</span>
<span class="n">padded_src</span><span class="p">[</span><span class="n">pad</span><span class="p">:</span><span class="o">-</span><span class="n">pad</span><span class="p">,</span> <span class="n">pad</span><span class="p">:</span><span class="o">-</span><span class="n">pad</span><span class="p">,:]</span> <span class="o">=</span> <span class="n">src_image</span><span class="p">[:,:,:]</span>
<span class="k">return</span> <span class="n">padded_src</span><span class="c">#, tgt_image</span>
<span class="k">def</span> <span class="nf">get_pad</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="k">return</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">im</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="n">pad</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_pad</span><span class="p">(</span><span class="n">dpi</span><span class="p">)</span>
<span class="n">padded_src</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">prepare_image</span><span class="p">(</span><span class="n">im</span><span class="p">,</span> <span class="n">dpi</span><span class="p">,</span> <span class="n">pad</span><span class="p">)</span>
<span class="n">tgt_image</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">process_image</span><span class="p">(</span><span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">)</span>
<span class="k">return</span> <span class="n">tgt_image</span><span class="p">,</span> <span class="o">-</span><span class="n">pad</span><span class="p">,</span> <span class="o">-</span><span class="n">pad</span>
<span class="k">class</span> <span class="nc">OffsetFilter</span><span class="p">(</span><span class="n">BaseFilter</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">offsets</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">if</span> <span class="n">offsets</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">offsets</span> <span class="o">=</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">offsets</span> <span class="o">=</span> <span class="n">offsets</span>
<span class="k">def</span> <span class="nf">get_pad</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(</span><span class="nb">max</span><span class="p">(</span><span class="o">*</span><span class="bp">self</span><span class="o">.</span><span class="n">offsets</span><span class="p">)</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">process_image</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="n">ox</span><span class="p">,</span> <span class="n">oy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">offsets</span>
<span class="n">a1</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">roll</span><span class="p">(</span><span class="n">padded_src</span><span class="p">,</span> <span class="nb">int</span><span class="p">(</span><span class="n">ox</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">),</span> <span class="n">axis</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
<span class="n">a2</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">roll</span><span class="p">(</span><span class="n">a1</span><span class="p">,</span> <span class="o">-</span><span class="nb">int</span><span class="p">(</span><span class="n">oy</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">),</span> <span class="n">axis</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="k">return</span> <span class="n">a2</span>
<span class="k">class</span> <span class="nc">GaussianFilter</span><span class="p">(</span><span class="n">BaseFilter</span><span class="p">):</span>
<span class="s">"simple gauss filter"</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sigma</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigma</span> <span class="o">=</span> <span class="n">sigma</span>
<span class="bp">self</span><span class="o">.</span><span class="n">alpha</span> <span class="o">=</span> <span class="n">alpha</span>
<span class="k">if</span> <span class="n">color</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">color</span><span class="o">=</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">color</span><span class="o">=</span><span class="n">color</span>
<span class="k">def</span> <span class="nf">get_pad</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sigma</span><span class="o">*</span><span class="mi">3</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">process_image</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="c">#offsetx, offsety = int(self.offsets[0]), int(self.offsets[1])</span>
<span class="n">tgt_image</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros_like</span><span class="p">(</span><span class="n">padded_src</span><span class="p">)</span>
<span class="n">aa</span> <span class="o">=</span> <span class="n">smooth2d</span><span class="p">(</span><span class="n">padded_src</span><span class="p">[:,:,</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span><span class="o">*</span><span class="bp">self</span><span class="o">.</span><span class="n">alpha</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sigma</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">)</span>
<span class="n">tgt_image</span><span class="p">[:,:,</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">aa</span>
<span class="n">tgt_image</span><span class="p">[:,:,:</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">color</span>
<span class="k">return</span> <span class="n">tgt_image</span>
<span class="k">class</span> <span class="nc">DropShadowFilter</span><span class="p">(</span><span class="n">BaseFilter</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sigma</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.3</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">offsets</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span> <span class="o">=</span> <span class="n">GaussianFilter</span><span class="p">(</span><span class="n">sigma</span><span class="p">,</span> <span class="n">alpha</span><span class="p">,</span> <span class="n">color</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">offset_filter</span> <span class="o">=</span> <span class="n">OffsetFilter</span><span class="p">(</span><span class="n">offsets</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">get_pad</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">max</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span><span class="o">.</span><span class="n">get_pad</span><span class="p">(</span><span class="n">dpi</span><span class="p">),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">offset_filter</span><span class="o">.</span><span class="n">get_pad</span><span class="p">(</span><span class="n">dpi</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">process_image</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="n">t1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span><span class="o">.</span><span class="n">process_image</span><span class="p">(</span><span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">)</span>
<span class="n">t2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">offset_filter</span><span class="o">.</span><span class="n">process_image</span><span class="p">(</span><span class="n">t1</span><span class="p">,</span> <span class="n">dpi</span><span class="p">)</span>
<span class="k">return</span> <span class="n">t2</span>
<span class="kn">from</span> <span class="nn">matplotlib.colors</span> <span class="kn">import</span> <span class="n">LightSource</span>
<span class="k">class</span> <span class="nc">LightFilter</span><span class="p">(</span><span class="n">BaseFilter</span><span class="p">):</span>
<span class="s">"simple gauss filter"</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sigma</span><span class="p">,</span> <span class="n">fraction</span><span class="o">=</span><span class="mf">0.5</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span> <span class="o">=</span> <span class="n">GaussianFilter</span><span class="p">(</span><span class="n">sigma</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">light_source</span> <span class="o">=</span> <span class="n">LightSource</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">fraction</span> <span class="o">=</span> <span class="n">fraction</span>
<span class="c">#hsv_min_val=0.5,hsv_max_val=0.9,</span>
<span class="c"># hsv_min_sat=0.1,hsv_max_sat=0.1)</span>
<span class="k">def</span> <span class="nf">get_pad</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span><span class="o">.</span><span class="n">get_pad</span><span class="p">(</span><span class="n">dpi</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">process_image</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="n">t1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">gauss_filter</span><span class="o">.</span><span class="n">process_image</span><span class="p">(</span><span class="n">padded_src</span><span class="p">,</span> <span class="n">dpi</span><span class="p">)</span>
<span class="n">elevation</span> <span class="o">=</span> <span class="n">t1</span><span class="p">[:,:,</span><span class="mi">3</span><span class="p">]</span>
<span class="n">rgb</span> <span class="o">=</span> <span class="n">padded_src</span><span class="p">[:,:,:</span><span class="mi">3</span><span class="p">]</span>
<span class="n">rgb2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">light_source</span><span class="o">.</span><span class="n">shade_rgb</span><span class="p">(</span><span class="n">rgb</span><span class="p">,</span> <span class="n">elevation</span><span class="p">,</span>
<span class="n">fraction</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">fraction</span><span class="p">)</span>
<span class="n">tgt</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty_like</span><span class="p">(</span><span class="n">padded_src</span><span class="p">)</span>
<span class="n">tgt</span><span class="p">[:,:,:</span><span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="n">rgb2</span>
<span class="n">tgt</span><span class="p">[:,:,</span><span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="n">padded_src</span><span class="p">[:,:,</span><span class="mi">3</span><span class="p">]</span>
<span class="k">return</span> <span class="n">tgt</span>
<span class="k">class</span> <span class="nc">GrowFilter</span><span class="p">(</span><span class="n">BaseFilter</span><span class="p">):</span>
<span class="s">"enlarge the area"</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pixels</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pixels</span> <span class="o">=</span> <span class="n">pixels</span>
<span class="k">if</span> <span class="n">color</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">color</span><span class="o">=</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">color</span><span class="o">=</span><span class="n">color</span>
<span class="k">def</span> <span class="nf">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">im</span><span class="p">,</span> <span class="n">dpi</span><span class="p">):</span>
<span class="n">pad</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">pixels</span>
<span class="n">ny</span><span class="p">,</span> <span class="n">nx</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="n">im</span><span class="o">.</span><span class="n">shape</span>
<span class="n">new_im</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">([</span><span class="n">pad</span><span class="o">*</span><span class="mi">2</span><span class="o">+</span><span class="n">ny</span><span class="p">,</span> <span class="n">pad</span><span class="o">*</span><span class="mi">2</span><span class="o">+</span><span class="n">nx</span><span class="p">,</span> <span class="n">depth</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="s">"d"</span><span class="p">)</span>
<span class="n">alpha</span> <span class="o">=</span> <span class="n">new_im</span><span class="p">[:,:,</span><span class="mi">3</span><span class="p">]</span>
<span class="n">alpha</span><span class="o">.</span><span class="n">fill</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">alpha</span><span class="p">[</span><span class="n">pad</span><span class="p">:</span><span class="o">-</span><span class="n">pad</span><span class="p">,</span> <span class="n">pad</span><span class="p">:</span><span class="o">-</span><span class="n">pad</span><span class="p">]</span> <span class="o">=</span> <span class="n">im</span><span class="p">[:,:,</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
<span class="n">alpha2</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">clip</span><span class="p">(</span><span class="n">smooth2d</span><span class="p">(</span><span class="n">alpha</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">pixels</span><span class="o">/</span><span class="mf">72.</span><span class="o">*</span><span class="n">dpi</span><span class="p">)</span> <span class="o">*</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">new_im</span><span class="p">[:,:,</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">alpha2</span>
<span class="n">new_im</span><span class="p">[:,:,:</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">color</span>
<span class="n">offsetx</span><span class="p">,</span> <span class="n">offsety</span> <span class="o">=</span> <span class="o">-</span><span class="n">pad</span><span class="p">,</span> <span class="o">-</span><span class="n">pad</span>
<span class="k">return</span> <span class="n">new_im</span><span class="p">,</span> <span class="n">offsetx</span><span class="p">,</span> <span class="n">offsety</span>
<span class="kn">from</span> <span class="nn">matplotlib.artist</span> <span class="kn">import</span> <span class="n">Artist</span>
<span class="k">class</span> <span class="nc">FilteredArtistList</span><span class="p">(</span><span class="n">Artist</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A simple container to draw filtered artist.</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">artist_list</span><span class="p">,</span> <span class="nb">filter</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_artist_list</span> <span class="o">=</span> <span class="n">artist_list</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_filter</span> <span class="o">=</span> <span class="nb">filter</span>
<span class="n">Artist</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">draw</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">renderer</span><span class="p">):</span>
<span class="n">renderer</span><span class="o">.</span><span class="n">start_rasterizing</span><span class="p">()</span>
<span class="n">renderer</span><span class="o">.</span><span class="n">start_filter</span><span class="p">()</span>
<span class="k">for</span> <span class="n">a</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_artist_list</span><span class="p">:</span>
<span class="n">a</span><span class="o">.</span><span class="n">draw</span><span class="p">(</span><span class="n">renderer</span><span class="p">)</span>
<span class="n">renderer</span><span class="o">.</span><span class="n">stop_filter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_filter</span><span class="p">)</span>
<span class="n">renderer</span><span class="o">.</span><span class="n">stop_rasterizing</span><span class="p">()</span>
<span class="kn">import</span> <span class="nn">matplotlib.transforms</span> <span class="kn">as</span> <span class="nn">mtransforms</span>
<span class="k">def</span> <span class="nf">filtered_text</span><span class="p">(</span><span class="n">ax</span><span class="p">):</span>
<span class="c"># mostly copied from contour_demo.py</span>
<span class="c"># prepare image</span>
<span class="n">delta</span> <span class="o">=</span> <span class="mf">0.025</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="o">-</span><span class="mf">3.0</span><span class="p">,</span> <span class="mf">3.0</span><span class="p">,</span> <span class="n">delta</span><span class="p">)</span>
<span class="n">y</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="o">-</span><span class="mf">2.0</span><span class="p">,</span> <span class="mf">2.0</span><span class="p">,</span> <span class="n">delta</span><span class="p">)</span>
<span class="n">X</span><span class="p">,</span> <span class="n">Y</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">meshgrid</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span>
<span class="n">Z1</span> <span class="o">=</span> <span class="n">mlab</span><span class="o">.</span><span class="n">bivariate_normal</span><span class="p">(</span><span class="n">X</span><span class="p">,</span> <span class="n">Y</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)</span>
<span class="n">Z2</span> <span class="o">=</span> <span class="n">mlab</span><span class="o">.</span><span class="n">bivariate_normal</span><span class="p">(</span><span class="n">X</span><span class="p">,</span> <span class="n">Y</span><span class="p">,</span> <span class="mf">1.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="c"># difference of Gaussians</span>
<span class="n">Z</span> <span class="o">=</span> <span class="mf">10.0</span> <span class="o">*</span> <span class="p">(</span><span class="n">Z2</span> <span class="o">-</span> <span class="n">Z1</span><span class="p">)</span>
<span class="c"># draw</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">Z</span><span class="p">,</span> <span class="n">interpolation</span><span class="o">=</span><span class="s">'bilinear'</span><span class="p">,</span> <span class="n">origin</span><span class="o">=</span><span class="s">'lower'</span><span class="p">,</span>
<span class="n">cmap</span><span class="o">=</span><span class="n">cm</span><span class="o">.</span><span class="n">gray</span><span class="p">,</span> <span class="n">extent</span><span class="o">=</span><span class="p">(</span><span class="o">-</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">))</span>
<span class="n">levels</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="o">-</span><span class="mf">1.2</span><span class="p">,</span> <span class="mf">1.6</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">)</span>
<span class="n">CS</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">contour</span><span class="p">(</span><span class="n">Z</span><span class="p">,</span> <span class="n">levels</span><span class="p">,</span>
<span class="n">origin</span><span class="o">=</span><span class="s">'lower'</span><span class="p">,</span>
<span class="n">linewidths</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span>
<span class="n">extent</span><span class="o">=</span><span class="p">(</span><span class="o">-</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">))</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_aspect</span><span class="p">(</span><span class="s">"auto"</span><span class="p">)</span>
<span class="c"># contour label</span>
<span class="n">cl</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">clabel</span><span class="p">(</span><span class="n">CS</span><span class="p">,</span> <span class="n">levels</span><span class="p">[</span><span class="mi">1</span><span class="p">::</span><span class="mi">2</span><span class="p">],</span> <span class="c"># label every second level</span>
<span class="n">inline</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">fmt</span><span class="o">=</span><span class="s">'</span><span class="si">%1.1f</span><span class="s">'</span><span class="p">,</span>
<span class="n">fontsize</span><span class="o">=</span><span class="mi">11</span><span class="p">)</span>
<span class="c"># change clable color to black</span>
<span class="kn">from</span> <span class="nn">matplotlib.patheffects</span> <span class="kn">import</span> <span class="n">Normal</span>
<span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">cl</span><span class="p">:</span>
<span class="n">t</span><span class="o">.</span><span class="n">set_color</span><span class="p">(</span><span class="s">"k"</span><span class="p">)</span>
<span class="n">t</span><span class="o">.</span><span class="n">set_path_effects</span><span class="p">([</span><span class="n">Normal</span><span class="p">()])</span> <span class="c"># to force TextPath (i.e., same font in all backends)</span>
<span class="c"># Add white glows to improve visibility of labels.</span>
<span class="n">white_glows</span> <span class="o">=</span> <span class="n">FilteredArtistList</span><span class="p">(</span><span class="n">cl</span><span class="p">,</span> <span class="n">GrowFilter</span><span class="p">(</span><span class="mi">3</span><span class="p">))</span>
<span class="n">ax</span><span class="o">.</span><span class="n">add_artist</span><span class="p">(</span><span class="n">white_glows</span><span class="p">)</span>
<span class="n">white_glows</span><span class="o">.</span><span class="n">set_zorder</span><span class="p">(</span><span class="n">cl</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">get_zorder</span><span class="p">()</span><span class="o">-</span><span class="mf">0.1</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">drop_shadow_line</span><span class="p">(</span><span class="n">ax</span><span class="p">):</span>
<span class="c"># copyed from examples/misc/svg_filter_line.py</span>
<span class="c"># draw lines</span>
<span class="n">l1</span><span class="p">,</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">([</span><span class="mf">0.1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.9</span><span class="p">],</span> <span class="p">[</span><span class="mf">0.1</span><span class="p">,</span> <span class="mf">0.9</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">],</span> <span class="s">"bo-"</span><span class="p">,</span>
<span class="n">mec</span><span class="o">=</span><span class="s">"b"</span><span class="p">,</span> <span class="n">mfc</span><span class="o">=</span><span class="s">"w"</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">5</span><span class="p">,</span> <span class="n">mew</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">ms</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="s">"Line 1"</span><span class="p">)</span>
<span class="n">l2</span><span class="p">,</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">([</span><span class="mf">0.1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.9</span><span class="p">],</span> <span class="p">[</span><span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">,</span> <span class="mf">0.7</span><span class="p">],</span> <span class="s">"ro-"</span><span class="p">,</span>
<span class="n">mec</span><span class="o">=</span><span class="s">"r"</span><span class="p">,</span> <span class="n">mfc</span><span class="o">=</span><span class="s">"w"</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">5</span><span class="p">,</span> <span class="n">mew</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">ms</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="s">"Line 1"</span><span class="p">)</span>
<span class="n">gauss</span> <span class="o">=</span> <span class="n">DropShadowFilter</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="p">[</span><span class="n">l1</span><span class="p">,</span> <span class="n">l2</span><span class="p">]:</span>
<span class="c"># draw shadows with same lines with slight offset.</span>
<span class="n">xx</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">get_xdata</span><span class="p">()</span>
<span class="n">yy</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">get_ydata</span><span class="p">()</span>
<span class="n">shadow</span><span class="p">,</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">xx</span><span class="p">,</span> <span class="n">yy</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">update_from</span><span class="p">(</span><span class="n">l</span><span class="p">)</span>
<span class="c"># offset transform</span>
<span class="n">ot</span> <span class="o">=</span> <span class="n">mtransforms</span><span class="o">.</span><span class="n">offset_copy</span><span class="p">(</span><span class="n">l</span><span class="o">.</span><span class="n">get_transform</span><span class="p">(),</span> <span class="n">ax</span><span class="o">.</span><span class="n">figure</span><span class="p">,</span>
<span class="n">x</span><span class="o">=</span><span class="mf">4.0</span><span class="p">,</span> <span class="n">y</span><span class="o">=-</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="s">'points'</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_transform</span><span class="p">(</span><span class="n">ot</span><span class="p">)</span>
<span class="c"># adjust zorder of the shadow lines so that it is drawn below the</span>
<span class="c"># original lines</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_zorder</span><span class="p">(</span><span class="n">l</span><span class="o">.</span><span class="n">get_zorder</span><span class="p">()</span><span class="o">-</span><span class="mf">0.5</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_agg_filter</span><span class="p">(</span><span class="n">gauss</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_rasterized</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span> <span class="c"># to support mixed-mode renderers</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_xlim</span><span class="p">(</span><span class="mf">0.</span><span class="p">,</span> <span class="mf">1.</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_ylim</span><span class="p">(</span><span class="mf">0.</span><span class="p">,</span> <span class="mf">1.</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">drop_shadow_patches</span><span class="p">(</span><span class="n">ax</span><span class="p">):</span>
<span class="c"># copyed from barchart_demo.py</span>
<span class="n">N</span> <span class="o">=</span> <span class="mi">5</span>
<span class="n">menMeans</span> <span class="o">=</span> <span class="p">(</span><span class="mi">20</span><span class="p">,</span> <span class="mi">35</span><span class="p">,</span> <span class="mi">30</span><span class="p">,</span> <span class="mi">35</span><span class="p">,</span> <span class="mi">27</span><span class="p">)</span>
<span class="n">ind</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="n">N</span><span class="p">)</span> <span class="c"># the x locations for the groups</span>
<span class="n">width</span> <span class="o">=</span> <span class="mf">0.35</span> <span class="c"># the width of the bars</span>
<span class="n">rects1</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">bar</span><span class="p">(</span><span class="n">ind</span><span class="p">,</span> <span class="n">menMeans</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">'r'</span><span class="p">,</span> <span class="n">ec</span><span class="o">=</span><span class="s">"w"</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">womenMeans</span> <span class="o">=</span> <span class="p">(</span><span class="mi">25</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">34</span><span class="p">,</span> <span class="mi">20</span><span class="p">,</span> <span class="mi">25</span><span class="p">)</span>
<span class="n">rects2</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">bar</span><span class="p">(</span><span class="n">ind</span><span class="o">+</span><span class="n">width</span><span class="o">+</span><span class="mf">0.1</span><span class="p">,</span> <span class="n">womenMeans</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">'y'</span><span class="p">,</span> <span class="n">ec</span><span class="o">=</span><span class="s">"w"</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="c">#gauss = GaussianFilter(1.5, offsets=(1,1), )</span>
<span class="n">gauss</span> <span class="o">=</span> <span class="n">DropShadowFilter</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="n">offsets</span><span class="o">=</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">),</span> <span class="p">)</span>
<span class="n">shadow</span> <span class="o">=</span> <span class="n">FilteredArtistList</span><span class="p">(</span><span class="n">rects1</span><span class="o">+</span><span class="n">rects2</span><span class="p">,</span> <span class="n">gauss</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">add_artist</span><span class="p">(</span><span class="n">shadow</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_zorder</span><span class="p">(</span><span class="n">rects1</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">get_zorder</span><span class="p">()</span><span class="o">-</span><span class="mf">0.1</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_xlim</span><span class="p">(</span><span class="n">ind</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">-</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">ind</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span><span class="o">+</span><span class="mf">1.5</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_ylim</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">40</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">light_filter_pie</span><span class="p">(</span><span class="n">ax</span><span class="p">):</span>
<span class="n">fracs</span> <span class="o">=</span> <span class="p">[</span><span class="mi">15</span><span class="p">,</span><span class="mi">30</span><span class="p">,</span><span class="mi">45</span><span class="p">,</span> <span class="mi">10</span><span class="p">]</span>
<span class="n">explode</span><span class="o">=</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mf">0.05</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">pies</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">pie</span><span class="p">(</span><span class="n">fracs</span><span class="p">,</span> <span class="n">explode</span><span class="o">=</span><span class="n">explode</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">patch</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
<span class="n">light_filter</span> <span class="o">=</span> <span class="n">LightFilter</span><span class="p">(</span><span class="mi">9</span><span class="p">)</span>
<span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">pies</span><span class="p">[</span><span class="mi">0</span><span class="p">]:</span>
<span class="n">p</span><span class="o">.</span><span class="n">set_agg_filter</span><span class="p">(</span><span class="n">light_filter</span><span class="p">)</span>
<span class="n">p</span><span class="o">.</span><span class="n">set_rasterized</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span> <span class="c"># to support mixed-mode renderers</span>
<span class="n">p</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">ec</span><span class="o">=</span><span class="s">"none"</span><span class="p">,</span>
<span class="n">lw</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">gauss</span> <span class="o">=</span> <span class="n">DropShadowFilter</span><span class="p">(</span><span class="mi">9</span><span class="p">,</span> <span class="n">offsets</span><span class="o">=</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">),</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.7</span><span class="p">)</span>
<span class="n">shadow</span> <span class="o">=</span> <span class="n">FilteredArtistList</span><span class="p">(</span><span class="n">pies</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">gauss</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">add_artist</span><span class="p">(</span><span class="n">shadow</span><span class="p">)</span>
<span class="n">shadow</span><span class="o">.</span><span class="n">set_zorder</span><span class="p">(</span><span class="n">pies</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">get_zorder</span><span class="p">()</span><span class="o">-</span><span class="mf">0.1</span><span class="p">)</span>
<span class="k">if</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">plt</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">6</span><span class="p">))</span>
<span class="n">plt</span><span class="o">.</span><span class="n">subplots_adjust</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mf">0.05</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mf">0.95</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">221</span><span class="p">)</span>
<span class="n">filtered_text</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">222</span><span class="p">)</span>
<span class="n">drop_shadow_line</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">223</span><span class="p">)</span>
<span class="n">drop_shadow_patches</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">224</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_aspect</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="n">light_filter_pie</span><span class="p">(</span><span class="n">ax</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_frame_on</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
</pre></div>
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<p>Keywords: python, matplotlib, pylab, example, codex (see <a class="reference internal" href="../../faq/howto_faq.html#how-to-search-examples"><em>Search examples</em></a>)</p>
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