# limitations under the License.</span>

<span class="kn">import</span> <span class="nn">copy</span>
<span class="kn">import</span> <span class="nn">matplotlib.collections</span> <span class="k">as</span> <span
                        class="nn">mcol</span>
<span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="k">as</span> <span
                        class="nn">plt</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="kn">import</span> <span c