You seem to be asking for an awful lot. NI gives you several examples using Constrained Nonlinear Optimization and you think that showing you how to use constraints in a constrained optimization is important? Besides that they give you a template for the objective function, didn't you find the minimally documented controls placed haphazardly on the FP and BD to be enough of a hint? Finally, the main VI is not password protected so you can easily follow the code on the BD. Sometimes it is tough to follow code, but increasing the size of the BD like they do here is very helpful. Of course the hardest part for beginners in LV is to master dataflow. Here they save you the trouble by using a stacked sequence in one of the first subVIs along with some sequence locals since left to right is so overrated.
(As Homer Simpson once said "By the way I am being sarcastic"). What a complete mess, from the code itself to the documentation and examples. But the icon is spiffy so at least there is some quality control.
On to the task at hand: Having stepped into that steaming pile of poo that is the BD, it seems that the equality and inequality constraints are simply bundled together. You can ignore the equality constraint output of the objective function VI (I guess). For your equality constraint Y2=88, just wire Y2 to an inequality constraint, and make the max and min value equal to 88. Your x1 and x2 constraints are handled via the x minimum and maximum controls. Try the following VI to see if it works and makes some sense. I changed the range for x1 and x2 to include a region where the Y2 constraint is met, otherwise I get an error.
Message Edited by Darin.K on 05-26-2010 10:27 AM
