Menu path
Mod-Roof > Link-Planes
🧾 What Link-Planes does
Link-Planes joins two roof planes by creating proper ridge, valley, or eave lines where they meet. This tool resolves the boundary between planes so that duplicate, coincident (overlapping at the same location), and overlapping lines are removed, and the most appropriate line type is inserted automatically.
This is essential when you need clean connections between different roof sections, such as joining a main roof to a dormer, or connecting intersecting roof planes.
🔧 How to use Link-Planes
Navigate to Mod-Roof > Link-Planes
Select the first roof plane by clicking on it
Select the second roof plane that you want to connect to the first
The system checks if the planes share a common boundary
If they do share a boundary, duplicate lines along that boundary are automatically resolved to create a single, appropriate line type
🛠 What happens during linking
When two planes are successfully linked:
Duplicate lines are removed: Multiple lines occupying the same space are consolidated
Coincident lines are resolved: Lines that overlap at exactly the same location are merged
Appropriate line type is created: The system determines whether the connection should be a ridge, valley, or eave line based on the plane geometry
For example, when joining two roof sections, duplicate eave lines along their shared boundary become a single ridge line.
💡 When to use Link-Planes
Connecting main roof planes to dormers
Joining intersecting roof sections
Cleaning up duplicate boundaries after roof modifications
Resolving overlapping lines between adjacent planes
⚠️ Important notes
This function works on walls as well as roof planes
Both planes must share a common boundary for the linking to work
The tool automatically determines the most appropriate line type for the connection