s a load at a specific node.
% * *addLoadAtPoint*: Adds a load at a specific point.
% * *addLoadAtBorder*: Adds a load along a specified border in a given 
%                      direction.
% * *initializeDiscontinuitySegArray*: Initializes an array of 
%                                      discontinuity segments.
% * *initializeDiscontinuitySegment*: Initializes a single discontinuity 
%                                     segment.
% * *addDiscontinuityData*: Adds additional discontinuity data.
% * *initi