Application: CreateDuctworkStiffener
Revit Platform: MEP
Revit Version: 2024.0
First Released For: 2024.0
Programming Language: C#
Skill Level: Beginning
Category: Families, MEP
Type: ExternalCommand

Subject: Create Ductwork Stiffener
Summary: 
This sample demonstrates how to create ductwork stiffener.

Classes: 
Autodesk.Revit.DB
Autodesk.Revit.UI.IExternalCommand

Project Files: 
Command.cs
It contains the class Command which inherits from interface IExternalCommand and implements the Execute method.

Description: 
The sample implements IExternalCommand interface and utilizes the method CreateDuctworkStiffener to create stiffeners on ductwork.

Instructions: 
1.	Open Revit application.
2.	Load CreateStiffenerSample.rvt
3.	Execute the command.
Expected result: A external stiffener is created at the midpoint of ductwork, and the stiffener size should match size of ductwork.