an class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pySurf.data2D.crop_data0" title="Link to this definition">¶</a></dt>
<dd><p>Original version before adding polygonal and interactive selection.</p>
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="pySurf.data2D.data_equal">
<span class="sig-prename descclassname"><span class="pre">pySurf.data2D.</span></span><span class="sig-na