In the case of a block, the block definition is unchanged. Definition points, also called defpoints, are stored on the reserved, non-plotting Defpoints layer.Įxplode: To disassemble a complex object, such as a block, dimension, solid, or polyline, into simpler objects. The basic types of dimensions are Linear, Radial, Angular, Ordinate, and Arc Length.ĭimension Style: A named group of dimension settings that determines the appearance of the dimension and simplifies the setting of dimension system variables.ĭefinition Point AKA Defpoint: A node located at the end of an extension line corresponding to the location on the object being dimensioned.
Custom objects include parametric solids ( Mechanical toolset), intelligently interactive door symbols ( Architecture toolset), polygon objects ( Map 3D toolset), and associative dimension objects (AutoCAD and AutoCAD LT).ĭimension: A graphical object indicating on a drawing, the sizes of the object and the other details essential for its construction and function.
Relative Coordinates: Coordinates specified in relation to previous coordinates.Ĭustom Object: A type of object that is created by an ObjectARX application and that typically has more specialized capabilities than standard objects. These lines can be Xlines or Rays.Ībsolute Coordinates: Coordinate values measured relative to the coordinate system’s origin point (0,0,0).Ĭartesian Coordinates: A coordinate system where the X, Y, and Z axes meet at 0,0,0. The controls are limited to 2D operations only.Ĭonstruction Line: Temporary linework entities that can be used as references when creating and positioning other objects or linework.
You can add these rules and controls to any existing block as well as using them when you create new blocks. The insertion base point for a block definition.īlock: A generic term for one or more objects that are combined to create a single named object.īlock Definition: The name, base point, and set of objects that are combined and stored in the block definition table of a drawing.īlock Instance: A named compound object that is inserted in a drawing and displays the data stored in a block definition.ĭynamic Block: Dynamic blocks contain rules and restrictions that control the appearance and behavior of a block when it is inserted into a drawing or when it’s later modified. The insertion base point of the current drawing.Ĥ. A point for relative distance and angle when copying, moving, and rotating objects.ģ. In the context of editing grips, the grip that changes to a solid color when selected to specify the focus of the subsequent editing operation.Ģ. Attribute data can be extracted from a drawing and saved to a text file.Īttribute Tag: The identifying name given to an attribute, which is used during extraction of attribute data from a drawing.Īttribute Value: The text or numeric information stored in an attribute.ġ. Attribute values can be predefined, or they can be specified when the block is inserted. When you create annotative objects, they are scaled based on the current annotation scale setting and automatically displayed in a view at the correct size.Īnonymous Block: An unnamed block created by several features, including associative and nonassociative dimensions.Īssociative Dimension: A dimension that automatically adjusts its size and value when the associated geometry is modified.Īttribute: An object that is included in a block definition to store alphanumeric data. Annotative objects are defined at a paper height.Īnnotation Scale: A setting that is saved with model space, layout viewports, and model views. This property automates the process of scaling annotations in layout viewports and in model space. AutoCAD Glossary – GeometryĪnnotations: Text, dimensions, tolerances, symbols, notes, and other types of explanatory symbols or objects.Īnnotative: An object property that is assigned to objects that are used to annotate drawings.
Links for CAD terms provide deeper information to learn more.
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Note that all definitions are based on the Windows operating system and are focused on 2D drafting and design. The editing terms refer to object selection methods and graphical features. When we talk about geometry we are referring to the objects that make up your drawings and designs as well as the features they contain or rely on. This AutoCAD glossary can help with basic CAD terminology you should know when it comes to geometry and editing. In this second of the two-part “Beginner’s Guide for CAD Terms” series, we will explore some of the most important computer-aided design terms for geometry and object editing. When working with AutoCAD, there are certain CAD terms you should know.
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