It is a textual element that is used to store information with each block inserted in the drawing. They are commonly used to symbolize point features-similar to marker symbols in ArcMap.Ī block attribute is a nested component of a block definition. One or more instances of a block reference can be inserted (or copied) in a drawing. DWG/DXF formats Block references and attributesĪ DWG block reference is a named collection of graphic elements and user-created attributes that are treated as a single element or object. This topic describes the types of user-created attributes you can encounter when working with these datasets. DWG/DXF and DGN formats each use different methods for storing user-created attributes. User-created attributes in a CAD file associate nonspatial information to geometry.
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