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After reading this LabVIEW Idea exchange request: http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Provide-a-better-way-to-implement-a-polymorphic-VI/idi-p/920487 I was inspired to create VI macro(s) to attempt to address the problem mentioned in the request. Attached is my first attempt and I'm looking for feedback since I know people here have strong opinions. The benefit of this method is that a single vim (or 2 could replace a polymorphic VI with over 48 separate VIs....unless I'm missing something. I know that VI macros are not officially supported by NI, but that hasn't stopped us from using unsupported features before. Some people have probably already done something like this, but I couldn't find an example. To use the files, unzip them and copy them all to your \LabVIEW (version)\user.lib\macros\ directory. Create the directory if it does not exist. For example: C:\Program Files (x86)\National Instruments\LabVIEW 2014\user.lib\macros\ And as described in the wait-ms-with pass through post below, modify your LabVIEW.ini file to have the following ExternalNodesEnabled=True and Optionally XNodeWizardMode=True http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Wait-ms-with-error-pass-through/idc-p/3178218#M31820 Open the Example Changed.vi and review. Changed Example.zip
My colleagues and I use the Fit VI to Largest Decoration function in OpenG all the time, and it (usually) works like a charm. I've got a fairly small Project, a simple State Machine that takes readings from a Vernier SensorDAQ device and plots it on a graph. I'm using a Queued State Machine pattern, so I begin by creating the State Machine Queue and enqueuing the Initialize State. The first thing I do inside Initialize is Fit VI to Largest Decoration, and it throws Error 1, pointing to the final FP.PanelBounds Property node that it is setting to resize the Window. I also watched this function run with Highlight Execution turned on, and sure enough, the Error line was OK until it got to that final Write to the Property node. My initial suspicion was the SensorDAQ function, even though it hadn't been called. So I took it out, but the error persisted. I also tried making the Fit VI to Largest Decoration the first VI to be run -- same error. Ohh, an idea. The VI in question was written by a colleague, who is not big on LabVIEW style. This morning, I rewrote the entire program, keeping only the Front Panel which has, among other things, a Graph on it. This problem is so weird that it almost has to be something "unconventional" -- I'm going to leave this post here, in case anyone has other insights, but I'm then going to replace the Front Panel and will report back, especially if it fixes the problem. Bob Schor
It's that time of year again. What will the next installment of the LAVA/OpenG BBQ bring? One thing is for sure - door prize galore! Past prizes have included (just to name a few): home-made creations, gift-cards, tablets, books, Ipods, LabVIEW goodness, software and even a plane-ride. We accept anything - so feel free to be creative! By donating a prize you and your company will receive free advertising in this thread. But wait, it doesn't stop there! When your donation is drawn on the night, you may take center stage and embrace fame thrust upon on you by the loving crowd who are anxious to have their ticket drawn from Crelf's stunningly good-looking akubra. So what are you waiting for? Check out the cool prizes below (knowing there will be more added to this thread as NIWeek approaches). If you would like to donate (please do, we really appreciate the LAVA-love) feel free to add a prize below or PM me with the details and I'll do it. If you haven't already get your 2012 LAVA/OpenG BBQ tickets here!