span>
            <span class="n">r</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="mf">0.8</span><span class="p">,</span><span class="mf">0.9</span><span class="p">,</span><span class="mf">1.1</span><span class="p">,</span><span class="mf">1.2</span><span class="p">])</span><span class="o">*</span><span class="n">scalef</span> <span class="c1"># plot circles at 80, 90, 100, 110, 120 % of scale f</span>
      