 objects, this should remain consistent with the axis attribute: two Coord objects belong to the same associative class iff they have the same axis attribute. In this case, the associative class of Coord objects is effectively their direction or axis. The mechanisms for the two remain independent.</span>

<span class="sd">  For classes using Associative as equivalence principle:</span>

<span class="sd">  Their copy method should carry over the Associative object of the parent.</span>
<span class="sd">  The