Finding Additional Resources
As you can see, complex families like this require a lot of formulas to properly constrain. Revit's help documentation is quite good at explaining the specific syntax to use in the formula fields, but it doesn't help you with finding the right formula for the geometry you're wanting to control. Here are some tips and websites to turn to for help with formulas:
Excel Not surprisingly, Excel has the formula game down pat. If your formula in Revit has a lot of parentheses or commas and you are getting errors that the end of the expression is “unexpected,” you probably misplaced a parenthesis or comma. Copy your formula into Excel and it will color-code your commas and parentheses so you can find where you're off. Revit ...
Get Mastering Autodesk® Revit® Architecture 2012 now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
