n><span class="w"> </span><span class="n">zmax</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">zmin</span>
<span class="w">         </span><span class="n">sloper</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">range</span><span class="o">/</span><span class="n">aimax2</span>
<span class="w">         </span><span class="n">slopeh</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span clas