Arch Space/en: Difference between revisions

From FreeCAD Documentation
(Updating to match new version of source page)
(Neue Version von externer Quelle importiert)
Line 2: Line 2:


==Description==
==Description==
The Space tool allows you to define an empty volume, either by basing it on a solid shape, or by defining its boundaries, or a mix of both. If it is based solely on boundaries, the volume is calculated by starting from the bounding box of all the given boundaries, and subtracting the spaces behind each boundary. The space object always defines a solid volume. The floor area of a space object, calculated by intersecting a horizontal plane at the center of mass of the space volume, can also be displayed, by setting the display mode of the space object to "detailed".
Basically it is a solid shape (but represented as "empty") that can be defined either
# by an underlying solid shape object or
# by a set of boundary faces from other objects. In that case, the space volume is defined by taking the bounding box of all the faces, then removing exterior parts behind the boundary faces.


[[Image:Arch Space example.jpg|640px]]
[[Image:Arch Space example.jpg|640px]]

Revision as of 13:19, 23 February 2014

Arch_Space

Menu location
Arch → Space
Workbenches
Arch
Default shortcut
S P
Introduced in version
-
See also
None

Description

The Space tool allows you to define an empty volume, either by basing it on a solid shape, or by defining its boundaries, or a mix of both. If it is based solely on boundaries, the volume is calculated by starting from the bounding box of all the given boundaries, and subtracting the spaces behind each boundary. The space object always defines a solid volume. The floor area of a space object, calculated by intersecting a horizontal plane at the center of mass of the space volume, can also be displayed, by setting the display mode of the space object to "detailed".

New boundary faces can be added later with the Arch Add button, even to spaces created from a solid. Existing boundaries can be removed with the Arch Remove button.

How to use

  • Select faces or objects
  • Press the Space button, or press S, P keys

Properties

File:SpaceProperties it.png

Scripting

The space tool can be used in python scripts and macros by using the following function:

 makeSpace(objects)
  • Creates a space object from the given objects.
  • Objects can be one document object, in which case it becomes the base shape of the space object, or a list of selection objects as returned by FreeCADGui.Selection.getSelectionEx(), or a list of tuples (object, subobjectname).
  • Returns the newly created space object.

Example:

 import FreeCAD, Arch, Part
 b = Part.makeBox(2,2,2)
 FreeCAD.ActiveDocument.addObject("Part::Feature","Box").Shape=b
 sp = makeSpace([FreeCAD.ActiveDocument.Box])

After a space object is created, selected faces can be added to it with the following function:

 import FreeCADGui
 Arch.addSpaceBoundaries(sp, FreeCADGui.Selection.getSelectionEx())

Boundaries can also be removed with:

 Arch.removeSpaceBoundaries(sp, FreeCADGui.Selection.getSelectionEx())

Limitation

  • Not available below FreeCAD version 0.14
  • The boundaries properties is currently not editable via GUI
  • See the forum announcement