"Conversion direction Allplan to IFC" dialog box

IFC Export Settings (advanced) dialog box

Custom IFC attribute assignments are files with the extension CFG. You can save these files under any name in any path.

The user interface of the editor reflects the structure of the *.CFG files. You can open and edit existing attribute assignments in the editor. You can also edit *.CFG files manually by using Notepad as usual.

Note: You can still use attribute assignments from earlier Allplan versions. See the notes on IFC attribute mapping.

You can find detailed information about IFC attribute assignment in the "Attribute mapping" section of the Allplan BIM Compendium, which you can download as a PDF file from the AllplanHome Page - "Learning" area.

Assignments, property sets, or objects (area on the left)

Note: For import, the area on the left is sorted by property set; for export, it is sorted by Allplan object. General attribute assignments apply to all property sets or objects. In addition, you can create specific assignments that are superordinate to the respective general assignments.

Deletes a property set or object and its attributes assigned from the Specific assignments area.

Adds a property set or object to the Specific assignments area.

• For import, you manually enter the names of the property sets.
• For export, you select the Allplan object in the list box by clicking . The following objects are predefined: Beam, BuildingElementProxy, Chimney, Column, Covering, CurtainWall, Door, ElementAssembly, Footing, Furniture, Member, Opening, Pile, Plate, Railing, Ramp, Roof, ShadingDevice, Slab, Space, Stair, Wall, Window
• You can enter more Allplan object names manually in the box. The area under the dividing line lists up to 20 free object names. When you enter more than 20 object names, the first entry will be deleted from the list.
• When you select an object that can consist of several layers, use to add a layer below. The following Allplan objects are multilayer objects: Covering, Opening, Roof, Wall
• Assign the attributes in the area on the right.

Indicates that notes are available for the property set or object. You can find further information in the symbol’s ToolTip in the area on the right (Annotations column).

Tip: For example, when you work with content from different sources with attributes that are similar but not identical, it is a good idea to assign different Allplan attributes to the same IFC attribute for export. In this case, you can see with the ToolTip indicating that this attribute assignment already exists; the attribute assignment will be saved.

Indicates that the assignment is not valid. Select the line and adjust the assignment in the area on the right. You cannot save the attribute assignment if it includes assignments that are empty or not valid.

General assignments

General attribute assignments apply to all property sets or objects.

Specific assignments

For import, the area on the left is sorted by property set; for export, it is sorted by Allplan object. Specific attribute assignments apply only to the property set or object for which you define them; specific assignments are superordinate to general assignments.

Assignments (area on the right)

You can find the attributes that are already assigned to the selected object in the area on the right.

Deletes an assigned attribute with all its settings from the selected property set or object.

Adds a new attribute to the selected property set or object. The line of the new attribute includes the default settings. Adjust these settings to the requirements of your project.

Columns

The area on the right consists of several columns; the sequence of these columns varies depending on the direction of conversion:

• Allplan Attributes
  Use this column to define the Allplan attribute that you want to give a different attribute assignment. Click to open the Attribute Selection dialog box and select the attribute. You can also enter the Allplan attribute number.
• 
  Use the check boxes in this column to select or cancel the selection of individual assignments. Use to select or cancel the selection of all attributes assigned to an object in one go. Assignments that are not selected will not be transferred.
• Property Set (Only Export)
  Use this column to assign a property set (attribute group) to the Allplan attribute for export. A predefined PSet must already include the attribute; user-defined attribute groups must not be named PSet_xxx. For import, the area on the left is sorted by PSet.
• IFC Property
  Use this column to enter the IFC property that you want to assign to the Allplan attribute. You can use a predefined default attribute from the IFC schema or a new attribute with any name.
• IFC Property Type
  Use this column to define the type of the IFC property: IfcIdentifier (alphanumeric string), IfcLabel (any text), IfcBoolean (yes or no), IfcInteger (integer), IfcReal (floating-point number)
• Annotation
  The and symbols in this column indicate assignments that are incomplete, empty, or not valid. You can find further information in the ToolTips of the symbols.