Autodesk 00128-051462-9310 - AUTOCAD 2008 COMM UPG FRM 2005 DVD, User Manual

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Closing walls with Ortho Close
Close
This option closes the wall by creating a wall segment from the last point specified for the walls to the first point
specified in this group of walls. You enter c (Close) at the command line to use this option when placing walls.
About Wall Lengths
When you draw a wall, the “true” length of the wall is the distance between the 2 end grips. The wall can appear to
have a different length when it cleans up with other walls; the difference can be twice the cleanup radius longer or
shorter than the “true” length. The “true” length is the length reported by properties and schedules. To get the most
accurate information about wall length in schedules, always make sure that walls that clean up with each other have
end grips that coincide.
About Curved Walls
The smoothness (tesselation) of curved edges is controlled by the FACETDEV variable. This variable sets the number
of facets to display on curved AEC objects. The default value is 1/2'' for drawings created from imperial templates and
is 12.7 mm for drawings created from metric templates.
The number you specify for facet deviation defines the maximum distance from the chord to the arc, the chord being
an edge that is created from faceting the curve, to the true mathematical arc. The facet deviation has a range of greater
than zero (0) and no upper limit.
The minimum number of facets is 8. For example, if you create a cylinder mass element to have a 1'-0'' radius, and
specify 1 for FACETDEV, the cylinder has 8 faces.
To specify the facet deviation values for the current drawing, see “ Specifying the Display Resolution of Objects with
Facets ” on page 118. The settings apply to all curved objects in the drawing, including curved walls.
Specifying Offsets for Roof Line and Floor Line Vertices
When you add or move a vertex on the roof line or the floor line of a wall, you specify the horizontal and vertical offset
of the vertex. You can specify the offset relative to other vertices or to the base height or the baseline of the wall. The
following table identifies the locations you can specify for the horizontal offset of a vertex. The offset distance is
measured in the direction the wall was drawn.
Defines the horizontal offset from … This setting …
the wall start point. From Wall Start
the wall endpoint. From Wall End
746 | Chapter 18 Walls