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CAD tip CAD tip # 5980:

   
Question CAD 
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Q - question

Arithmetic expressions in Revit dimensions, combining metric/imperial

A - answer You can use mathematic formulas similar to Excel in the dimension texts in Revit projects.

Instead of entering a specific number (length, angle) you can use an arithmetic or conversion (e.g. inches-mm) expression in the dimension text (the blue text). Examples:

  
=1360/3  
=810-45mm
=120*30%  
=2'-3"  
=sqrt(16)  
=88^2  
=atan(1.0)  

You can also combine units or use metric units in an imperial project or vice versa - like =5000-7'5'':

Imperial units (feet/inches) can be entered with single or double quotes as 1'-2'', or 1'2", or 1'2, or just 1 2 in imperial projects.

Revit calculates the resulting value (according to the current project settings) and uses it to change the geometry paramatrically.

Revit
100% *  CAD 
6.2.2008    8115×  
Prices - CAD eShop:
applies to: Revit ·

See also:
Tip 13409:How to create Revit Window and Door schedules with legend views?
Tip 13227:Reference Explorer - quick analysis of your project or assembly (file size, xref errors).
Tip 13121:Who is the author of a specific BIM project element and who made its last change? Who did that?!
Tip 13105:Error - user license revoked.
Tip 13103:How to embed an interactive Revit 3D model into a Powerpoint presentation?


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