Autodesk 235B1-05A761-1301 User Guide - Page 825

definitionsymbol conversion script A Custom Content File (CCF) file that contains the settings for schematic symbol styles. For more information, see Converting Schematic Symbol Styles to Blocks on page 630. degree of freedom In part modeling, determines how a geometric object such as a line, arc, or circle can change shape or size. For example, a circle has 2 degrees of freedom: center and radius. When these values are known, degrees of freedom are said to be eliminated. demand factor For an electrical system or feeder circuit, this is a ratio of the amount of connected load (in kva or amperes) that will operate simultaneously to the total connected load on the circuit. An 80% demand factor, for instance, indicates that only 80% of the connected load on a circuit will ever be operating at the same time. design content AutoCAD MEP objects that represent real-world parts used to create complete building systems layouts. Examples include duct, pipe, fittings, and equipment. design criteria Includes information such as the type of design, maximum velocity or load, space requirements, or material specifications. design development phase The phase during which the conceptual design is developed into the complete building model. designation ID An optional number or string of characters that you assign to a schematic line. The designation can also be used to group schematic lines for scheduling purposes. DesignCenter™ A display window, similar to the standard Windows® Explorer, in which you use selection aids to find, manipulate, and sort drawings and drawing components. DesignCenter contains hierarchical tree, palette, preview, and description panes. Content can be dragged from the palette into an open drawing. detail marks Annotation that references another drawing, which contains a detail of the original drawing. developed length The length of your longest pipe run, including the equivalent length of the fittings. device conversion script A Custom Content File (CCF) file that contains the settings for devices styles. For more information, see Converting Device Styles to Blocks on page 620. diameter The length of a straight line through the center of a part. diaphragm A thin partition or dividing membrane. dimension (1) Annotation of the size description of an object or group of objects. Typically specifies the associated linear distances, angles, or size-related notes. dimension (2) In Content Builder, an entity that controls the size of a feature. When changed, the feature is resized. Might be expressed as a constant value, a value as part of a table, a calculated value, or a list of values. direct current (DC) An electrical current that flows in one direction only. direction dependent A condition where the display of an object is dependent on the view direction. display above range Elevation for top of the floor plan; breaking level for the High and Above display components display below range Elevation for bottom of the floor plan; breaking level for the Low and Below display components display by elevation A feature that allows users to configure the display of objects based on their elevation; uses cut plane height settings to determine if an object is above or below the display range display configuration The arrangement of objects in individual viewports. Display configurations can be fixed view or direction-dependent view. Each display configuration has one or more display representation sets associated with it. Display Manager A central location for all display information in a drawing. Glossary | 807