Arch BuildingPart

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Arch BuildingPart.png Arch BuildingPart

Menu location
Arch → BuildingPart
Default shortcut
Introduced in version
See also
Arch Building, Arch Floor


The BuildingPart is aimend at replacing the Arch Floor with a more capable version that can be used not only to create Floor/Storey/Levels but also all kinds of situations where different Arch/BIM objects need to be grouped and that group might need to be handled as one object or replicated.

How to use

  1. Optionally, select one or more objects to be included in your new Building Part
  2. Press the Arch BuildingPart.png Arch BuildingPart button


  • After creating a BuildingPart, you can add more objects to it by drag and dropping them in the Tree View or by using the Arch Add.png Arch Add tool
  • You can remove objects from a BuildingPart by drag and dropping them out of it the Tree View or by using the Arch Remove.png Arch Remove tool
  • By double-clicking the BuildingPart object in the tree view, the Working Plane will be set to its location, and the BuildingPart will become active, which means that new objects will be added automatically to it. Double-clicking the BuildingPart again wil deactivate it and set the working plane back to its previous position
  • The BuildingPart can display a mark in the 3D view with a label and level indication
  • When a BuildingPart is moved/rotated, all its children that either have no "Move With Host" property, or have it turned on, will move/rotate together.
  • Building Parts can be cloned
  • Building Parts can take any IFC type


  • DATAHeight: The height of this object
  • DATALevelOffset: The level of the (0,0,0) point of this level
  • DATAArea: The computed floor area of this floor
  • DATAIfcRole: The role of this object
  • DATADescription: An optional description for this component
  • DATATag: An optional tag for this component
  • DATAIfcAttributes: Custom IFC properties and attributes
  • VIEWLineWidth: The line width of this object
  • VIEWOverrideUnit: An optional unit to express levels
  • VIEWDisplayOffset: A transformation to apply to the level mark
  • VIEWShowLevel: If true, show the level
  • VIEWShowUnit: If true, show the unit on the level tag
  • VIEWSetWorkingPlane: If true, when activated, the working plane will automatically adapt to this level
  • VIEWOriginOffset: If true, when activated, Display offset will affect the origin mark too
  • VIEWShowLabel: If true, when activated, the object's label is displayed
  • VIEWFontName: The font to be used for texts
  • VIEWFontSize: The font size of texts
  • VIEWRestoreView: If set, the view stored in this object will be restored on double-click
  • VIEWDiffuseColor: The individual face colors


The BuildingPart tool can by used in macros and from the python console by using the following function:

makeBuildingPart ([objectslist]) 

creates a BuildingPart including the objects from the given list.


import Arch