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How big can an IF statement be in Revit?

Chris Price has been pushing the limits. Check it out:“What I found was Revit would crash at around 580 conditional statements in a single formula… Surely Autodesk should know someone would try and do…

2013-12-17 · Luke Johnson
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Revit Tips from Twitter – November 2013 edition

Did you know Shaft Openings can have Symbolic Lines in them? pic.twitter.com/4VXBbWZUEb— Luke Johnson (@lukeyjohnson) November 1, 2013 To Copy/Monitor a Shaft Opening, C/M an intersecting Floor – copi…

2013-11-02 · Luke Johnson
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Rounding values to a custom increment using a Formula

Nice tip from Revit Rants on how to round values within a family – and it allows much greater flexibility as to the rounding increment. In the example below, Chris uses ROUNDUP to round to a 5mm degre…

2012-09-03 · Luke Johnson
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More Revit formula for us babies

A couple of formula tricks from the CAD Shack: Pick One and Only One Here the condition number will allow only one paramter to be true in a list. Associated with a type, you could control a ton of th…

2012-05-23 · Luke Johnson
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A curtain family that (kinda) opens and closes …

This is an example of an family with an array that kinda mimics a curtain that opens and closes. http://revitlog.nl/images/stories/families/82_meubels/82_gordijn.rfa However – it is also a good exampl…

2012-05-14 · Luke Johnson
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Revit's Inconsistent Treatment of Strings in Formulas

It is currently not possible to evaluate a text string in a conditional statement. You can have a conditional statement report a text string, but not check text and base a condition on it.via RevitCit…

2012-04-19 · Luke Johnson
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Revit Formulas for "everyday" usage

Revit Formulas for “everyday” usage Great forum post from Klaus Munkholm – also author of Revit Forum Blog.…

2011-03-23 · Luke Johnson