MaximumGap2D

Syntax

constraint MaximumGap2D (1) (2) (3) (4)
# (1) int, unique constraint tag
# (2) int, node tag
# (3) int, node tag
# (4) double, gap

Theory

This is a conditional constraint that limits the distance between two nodes, viz.,

$$|{\mathbf{d}}_i+{\mathbf{u}}_i-{\mathbf{d}}_j-{\mathbf{u}}_j|\le D_{max}.$$

The participating DoFs are 1 and 2.