span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>

<span class="c1">##</span>
<span class="n">field1</span> <span class="o">=</span> <span class="n">GaussianField</span><span class="p">(</span><span class="mi">256</span><span class="p">,</span> <span class="mi">256</span><span class="p">,</span> <span class="n">a</span><span class="o">=</span><span class="mf">0.8</span><span cla