------------------------------------------------------------</span>
        <span class="comment">% Prescribe a displacement Dirichlet boundary condition at a node</span>
        <span class="keyword">function</span> setDisplacementDirichletBCAtNode(this, nodeId, value)
            this.setDirichletBCAtNode(nodeId, [1,2], value);
        <span class="keyword">end</span>

        <span class="comment">% -----------------------------------------------------------------</span>
        <span class="comment">% P