This function enables the user to define a reference node for motion.
The user may select any node in the model as the reference node by clicking the
SELECT REFERENCE NODE button. The user may also constrain any or all
translation degree of freedom (X, Y and Z). Figure
5.2.1 shows the dialog window of the Constraint Motion.
Figure 5.2.1 Constraint Motion Dialog Window
The reference node must remain stationary in the constraint direction.
The rest of the model will be transformed according to the reference node.
Figure 5.2.2 Constraint Motion Dialog Window
NOTE: After the selection of constraint axis, the program will label an asterisk as shown in Figure 5.2.2 . When Show Reference Node is clicked, the program will also label an asterisk. The program labels the reference node with a circle during the motion.