class="bp">self</span><span class="o">.</span><span class="n">origin</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">T_inv</span><span class="p">)</span>
            <span class="k">return</span> <span class="n">np</span><span class="o">.</span><span class="n">concatenate</span><span class="p">([</span><span class="n">c</span><span class="p">,</span> <span class="p">[</span><span class="mi">1</span> <span class="o">-</span> <span class="n">np</span><span c