Space Types - Autodesk 24108-051400-9000 - AutoCAD Revit Architecture Suite 2008 User Manual

3D Freeform Spaces
3D freeform spaces can model irregular 3D shapes. They can be generated associatively from bounding building objects,
or converted from mass elements. Freeform spaces can be useful for modelling non-extrusion shaped rooms.
Some examples for 3D freeform spaces
Each surface of a 3D freeform space can be grip-edited individually, making it possible to create complex space forms.
Area Calculation Standards
Spaces have 4 separate boundaries representing the base area, net area, usable area, and gross area. You can define the
offsets and the calculation of space boundaries with a predefined area calculation standard. Area calculation standards
included in AutoCAD Architecture are based on the area calculation rules of DIN 277 (Germany), BOMA (United States),
and SIS (Sweden). The standards included in the software reflect the general rules of these standards.
Space Adjacencies
Spaces can automatically establish adjacencies between faces of neighboring spaces. Space adjacencies are important
when exporting and processing a building plan to an engineering application like AutoCAD MEP.

Space Types

The following types of spaces can be modeled in AutoCAD Architecture:
Associative and Non-Associative Spaces
When a space is generated from bounding objects, it is associative to the bounding objects. When the bounding objects
change, the space is updated accordingly. If a bounding wall is dragged, the space inside becomes correspondingly
larger or smaller.
The associativity of a space to its bounding objects can be disconnected after creation. You could do this, if you want
to freeze the shape of the space and not have it react to any subsequent changes in the bounding objects.
2D Spaces
2D spaces display spatial information in 2 plan dimensions.
2D spaces in Plan view
The Z direction is by default set to 0 and ignored during creating, editing, and scheduling the space. 2D spaces can be
rectangular or polygonal. 2D spaces can either be drawn as non-associative spaces or be generated associatively from
bounding walls, AutoCAD linework, or AEC object profiles.
Extruded 3D Spaces
An extruded 3D space is similar to a 2D space, but has a user-defined extrusion height. Extruded spaces are useful for
regularly shaped 3D spaces like uniform-height rooms in a building. Extruded spaces can have floor and ceiling
1576 | Chapter 36 Spaces