Thursday 26 October 2017

Formula Greater Than or Equal To

If you have a situation where you would like to control a parameter determined on whether another parameter is Greater Than or Equal to a third parameter. You might think that the formula should read….

Parameter A = Parameter B >= Parameter C

The only problem is that Revit won’t allow you to insert the condition >= in the Formula, and will return an error.



So if we think in reverse and work with a ‘not’ statement we can use Parameter B < Parameter C.

So the formula will read….

Parameter A = not(Parameter B < Parameter C)















Sometimes you have to think a little out of the box to bend Revit to your will!

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