This is a real quick one that I wish I had figured out a lot faster earlier today: apparently a NaN from LabVIEW can’t go into a MySQL double. You need to check for NaN before writing to your database. Be especially mindful of this if you’re doing any type of counter measurement with NI equipment since they’ll return NaN when no pulses are detected on a timeout. That is all.
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26
Oct 12
LabVIEW File Path Type is Cross-Platform
If you’re a regular LabVIEW user you’ve probably programmatically (sorry, I hate that word too) referenced another file at some point. Most likely you’ve done this 212 to save some data or dynamically open another VI. Both tasks require the path to the file you need to work Gaziantep with. The challenge, however, is that path formats are OS dependent. For example, Windows uses the backslash (\) for denoting directory levels while Mac OS X uses the forward slash (/). If you plan on accessing a file using the Strip and Build Path functions, you need to use the correct slash to get to the new location. Using a string data type will require you to do a bit of extra work to properly identify the operating system and then the properly formatted string. Good news: there is a better way.
16
Oct 12
NaN Comparisons in LabVIEW
Let’s start out right with a quick tip for newer LabVIEW developers. The numeric data Staff type in LabVIEW supports a cheap jerseys NaN (Not a Number) value. This can be useful beyond catching zero divided by zero errors. For instance, inserting a NaN into an X-Y Graph’s input arrays at the same wholesale jerseys China indices Motivos displays a “null” point on the graph. This has the effect of creating gaps in your display.
y = x with a русалок random distribution of NaNs.
