Скачать или смотреть Revit Tutorial - Revit families with Formula - If Statements

In this Revit tutorial, I’ll show you how to use IF statements and formulas inside a Revit family to dynamically control the number of chairs based on table size. This is a highly requested topic from the community, and we’ll cover how to apply logical conditions to arrays, step-by-step.

🧠 What You'll Learn:
How to create parametric arrays using IF statements
Revit family formula syntax and nesting
Visualizing logical conditions inside furniture families
Tips to avoid common mistakes in Revit formulas

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00:00 - Intro and video context
00:34 - Real-world question: controlling chairs by table size
01:17 - Like & Subscribe appeal
01:50 - Table and chair family overview
02:50 - Array limitations in Revit 2023-2024
03:57 - Goal: controlling chairs using table size
04:40 - Array types: First-Last spacing explained
06:00 - Building the IF statement
07:00 - Writing the basic IF formula in Revit
08:05 - Testing the formula in the family
08:40 - Adding multiple IF statements
10:00 - Common formula mistakes & debugging
12:00 - Rearranging the logic (High to Low order)
13:10 - Adding another condition: 5 chairs if width 2500


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