Autodesk 15606-011408-9005 Tutorial - Page 319
external data, drive alias
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Page 319 highlights
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). | 311
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