

<span class="c1">#plotting</span>
<span class="n">ggplot</span><span class="p">()</span> <span class="o">+</span>
            <span class="n">geom_polygon</span><span class="p">(</span><span class="n">data</span> <span class="o">=</span> <span class="n">shape</span><span class="o">.</span><span class="n">df</span><span class="p">,</span>
                        <span class="n">aes</span><span class="p">(</span><span class="n">x</span> <span class="o">=</span> <span class="n">long</span><span class="p">,</