What is the plane model?

You manage default planes, roofscapes, offset planes, and reference surfaces in a plane model. A plane model contains pairs of default planes. Each pair of planes has a name. The same is true for the lower and upper default planes.

The pairs of planes in a plane model are equivalent to the stories of a building. You can assign the pairs of planes to the structural levels of the building structure or to individual drawing files. A project can contain several discrete plane models.

You can change the height settings of the default planes in the plane model. Any changes made to the height settings immediately apply to the drawing files to which you have assigned a default plane from the building model.

A plane model must not contain pairs of planes with overlapping height settings, except the pair of planes that defines the minimum height and maximum height of the building.

You can assign the height settings of a pair of planes to a drawing file or structural level of the building structure. However, you can also use the lower and upper default planes from different pairs of planes. Thus, you can create components across several floors (for example, chimneys).

You can also assign default planes that are not associated with the plane model to drawing files. You can even select a custom height for the lower default plane and adopt the upper default plane from a plane model.

You can also use plane models without a building structure.

In the Options - Planes page, you can configure the program to display planes in elevation and isometric views.
In the Options - Desktop environment - Animation page, you can configure the program to display planes in viewports with the Animation view type.

Plane models are saved as XML files in the project-specific \prj\bim folder.