Revit plugin to generate a 3D BIM Model from 2D CAD Drawings.

Test the plugin by Revit 2021 with all default family libraries installed. The default folder for Revit Add-in is C:\ProgramData\Autodesk\Revit\Addins\2021\ , or C:\Users\$username$\AppData\Roaming\Autodesk\Revit\Addins\2021\.
The build events of the Visual Studio project will copy all necessary files to that directory after you build the source code.

Then start Revit (Plugin Demo):

• Insert -> Link CAD -> *.dwg
• OCB -> Settings (check if all .rfa files are loaded)
• OCB -> Settings (Pick the element from DWG to detect its layer name)
• OCB -> Build up the architectural elements such as (Columns, Walls, Windows, Doors)
• Select the linked DWG in the floorplan view
• Create scheduling to the created elements and export it to Excel.

OCB add-in has been tested by Revit 2021. To apply it to other versions you need to rebuild it with correct .NET Framework.
Revit 2022/2021 - .NET 4.8
Revit 2020/2019 - .NET 4.7
Revit 2018 - .NET 4.6

REFERENCE | The project hosts two external references, RevitAPI.dll and RevitAPIUI.dll.

BUILD EVENTS | Set additional macros in post-build event to copy the built files to the Revit add-in folder.

copy "$(TargetDir)"."" "$(AppData)\Autodesk\Revit\Addins\2021\"

DEBUG | Within the project property, under DEBUG panel set external program as ...\Autodesk\Revit 2021\Revit.exe

This project uses Teigha for temporary development.

A demo is online to build up the building model from CAD drawings. Only core components are covered (Columns, Walls, Windows, Doors). For now the project still needs more cunning & robust algorithms to create more elements, which will be the main enhance in the next-phase coding.