am"><span class="n"><span class="pre">octreeMode</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em><span class="sig-paren">)</span></dt>
<dd><p>Builds an octree (3D) or quadtree (2D) tree from the surface definitions stored in tb. This function is inherently sequential, and the geometry file must be shared among all processors when running in parallel. The resulting octree (or quadtree) is balanced to respect a maximum ratio of 2 