I would like my lumber section detail components to display their numerical designation i.e. 2x4, 2x6, 2x8, etc. I've imported two generic annotation labels (numerator and denominator) for this purpose and nested them under similarly named parameters in the detail component family. The Numbers appear beautifully in a project and move appropriately when the dimensions of the detail component are changed. The problem is, this detail component Family has many types ( 2x4, 2x6, 2x8, etc.), but there doesn't seem to be a way to change the numerical designations according to the type selected. The only way to change these numbers is to edit the detail component and select the nested annotation label to change its value. What am I missing?
That what you want is easy but i can't understand the (2x10) for example come from where?
your size is not decimal.
I don't know yet where come from the two variable Denominator and Numerator so i can not make them automatic but i define two parameter for them that you can define in your family type , also i don't know why you use the "Family Type" parameter , here it is completly unuseful:
if i have more information over 2x10 or 2x8 , may be can i more help.
Ditto everything @azad.Nanva said, but really, I would abandon the whole gymnastic endeavor and identify them in the conventional way that everyone on the planet is familiar with. Not everyone is going to get your stylization. Nominal lumber sizes are 2x4, 2x6, 2x8, etc. Not 2 over 4, 2 over 6, 2 over 8. Additionally, I would suggest tagging them in Project Views where their nominal sizes actually need to be called out. Those Labels won't be legible in all Views/View Scales. Lastly, why don't you just use the Dimension Lumber Family in the stock Revit Content Library (under Structural Framing Category)? Check it out.
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