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drawing layer
A layer in
Display Manager
(page 310)
that contains drawing objects from a
DWG file. See also
AutoCAD layer
(page 309)
,
feature layer
(page 311)
,
layer
(page 312)
, or
surface
layer
(page 315)
.
drawing set
The set of
source drawing
(page 315)
s attached to a map.
drawing source
In AutoCAD Map 3D, a drawing (DWG) file and also its associated
information, such as attached drawing files, drawing-based
feature class
(page 311)
es, linked
template data, and topologies. Compare with
feature source
(page 311)
.
drive alias
In AutoCAD Map 3D, the mechanism that points to the folder where attached
DWG files are stored.
DWF
Design Web Format. An Autodesk file format for sharing two-dimensional,
three-dimensional, and spatially enabled design data on the Web.
external data
The
attribute data
(page 309)
linked to a map object but contained in a database
or file outside the map file. See also
object data
(page 313)
,
property
(page 313)
.
FDO
Feature Data Objects data access technology. An Autodesk software standard and
general purpose API for accessing
feature
(page 311)
s and geospatial data regardless of the
underlying
data store
(page 310)
. See also
feature class
(page 311)
.
feature
An abstraction of a natural or man-made real world object. A spatial feature has one
or more geometric properties. For example, you can represent a road feature with a line,
and a hydrant with a point. A non-spatial feature does not have geometry, but can be related
to a spatial feature that does. For example, a road feature can contain a sidewalk feature
that is defined as not containing any geometry. See also
attribute data
(page 309)
,
FDO
(page
311)
.
feature class
A schema element that describes a type of real-world object. It includes a class
name and
property
(page 313)
definitions. Commonly used to refer to a set of
feature
(page
311)
s of a particular class, for example, the feature class "roads" or the feature class "hydrants."
See also
FDO
(page 311)
,
schema
(page 314)
.
feature layer
A layer in
Display Manager
(page 310)
containing
feature
(page 311)
s from a
single
feature class
(page 311)
in a spatial data source. Feature layers are added to your map
using Data Connect. See also
AutoCAD layer
(page 309)
,
drawing layer
(page 311)
,
layer
(page
312)
, or
surface layer
(page 315)
.
feature source
Any source of
feature
(page 311)
data that has been connected to a map.
Compare with
drawing source
(page 311)
.
field
A specific category of information in a data file, such as Address or Diameter.
geometry (Oracle Spatial database)
The representation of a spatial
feature
(page 311)
.
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