9.3. Local solver

Local solvers proposed by Uranie come from the NLopt library (Non Linear OPTimization). This library is developed by Steven G. Johnson, integrating many original algorithms in an uniform interface. The NLopt website provides many useful information, that enhance the succinct ones provided here. The example used as support for this part is given in Macro “reoptimizeHollowBarCode.py” with a specification with respect to the way it was described in Sizing of a hollow bar example problem: since there is no multicriteria solver implemented from NLopt, the criteria on the distortion is downgraded to a constraint using a randomly defined threshold (set to 14).

• 9.3.1. TNlopt
• 9.3.2. Solvers