OpenBuildings™ Designer Help

Construct Opening in Form (using a shape)

Used to construct an opening in a form. Normally, an opening is generated by a shape or a compound cell; however, you can also create openings by overlapping shapes. Creating an opening from a union of shapes: When you create juxtaposing and/or overlapping openings in a form, the opening shapes unite, providing one overall opening shape.

Accessed from:
  • Ribbon: Building Design > Architectural > Modify > Modify Features > Construct Opening
  • Ribbon: Building Design > Forms > Modify Forms > Modify Features > Construct Opening

Note: Union of opening shapes results when you:
  • Create a new opening using overlapping shapes.
  • Create an opening with a shape that juxtaposes or overlaps an existing opening.
By Specifies the element type used to create the opening:
  • Shape — Creates the opening using a shape.
  • Compound Cell — Creates the opening using a compound cell.
Delete Constructions When on, the shape(s) that generates the openings is (are) deleted from the design file. When off, the perforators appear as dashed lines. This setting is available only when By > Shape is selected.
Method Identifies the manner in which the compound cell detects forms. This setting is available only when By > Compound Cell is selected.:
  • Manual — You manually identify the form(s) in which the compound cell is placed.
  • Automatic — The compound cell automatically detects the forms.

    For Automatic method for Compound Cell, the Sense Distance setting appears.

Sense Distance Sets the default distance over which the compound cell searches for a linear form.

This setting is available only when By > Compound Cell and Method > Automatic are selected.

Note: An opening is always constructed perpendicular to the plane of the shape.
Note: A compound cell may have more than one perforator shape. The order in which the perforator shapes are selected during the creation of the compound cell defines the order in which the forms must be identified. For example, the first perforator creates an opening in the first identified form, and the second perforator in the second form. If more forms are identified than the actual number of perforators, the last perforator is be used for all subsequently identified forms. Compound cells with more than one perforator are usually placed in multi-layered walls such as cavity walls.
Note: An opening shape can be a normal shape element as well as a perforator within a compound cell.
CAUTION: An opening shape that is the result of overlapping opening shapes cannot be converted back to its original comprising shapes.