BIM Slab/en

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Beam
Door
BIM

BIM Slab

Menu location
3D/BIM → Slab
Workbenches
BIM
Default shortcut
S B
Introduced in version
-
See also
Arch Wall, Arch Window

Description

The BIM Slab tool creates a Slab object, a horizontal structure element, from a planar shape. Slabs are specialized Arch Structure objects with their DataIfc Type preset to "Slab".

While it behaves like a standard Arch Structure, the BIM tool specifically initializes the slab with a default height (thickness) of 200 mm and an extrusion direction pointing downwards.

Usage

  1. Optionally select a planar object.
  2. There are several ways to invoke the tool:
    • Press the Slab button.
    • Select the 3D/BIM → Slab option from the menu.
    • Use the keyboard shortcut: S then B.
  3. If you have not yet selected a planar object: select one (as prompted in the Report View).
  4. A new Slab object is created and the tool is finished.
  5. Optionally change some properties in the Property View.

Notes

Properties

A Slab object shares the common properties and behaviors of all Arch Structures. Its DataIfcType is preset to Slab.

Scripting

The BIM Slab is created using the same Python function as Arch Structures: 

import FreeCAD
import Arch
import Draft

# Create a rectangle profile
rect = Draft.make_rectangle(length=2000, width=3000)
FreeCAD.ActiveDocument.recompute()

# Create a structure and define it as a slab
slab = Arch.makeStructure(rect)
slab.IfcType = "Slab"
slab.Height = 150  # mm
slab.Normal = (0, 0, -1)  # Slab is extruded downwards

FreeCAD.ActiveDocument.recompute()


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