2011

values in a dynamic block reference match a row of input property values, the corresponding
lookup property values in that table row are assigned to the block reference.
(BLOOKUPTABLE)
lookup table Defines properties for and assigns property values to a dynamic block. Assigns
property values to the dynamic block reference based on how the block is manipulated in
a drawing. (BLOOKUPTABLE)
lumen The SI unit of luminous flux (Symbol: lm). Cd * Sr
luminaire This refers to the aggregation of a lamp or lamps and its fixture. The fixture may
be a simple can or a complex armature with constrained joints.
luminance Luminance is the value of light reflected off a surface. It is a measure of how
bright or dark we perceive the surface.
luminous flux The perceived power in per unit of solid angle. The total luminous flux for
a lamp is the perceived power emitted in all directions.
lux The SI unit of illuminance (symbol: lx). Lm/m^2
macro-derived selection A selection set of all the objects that have been created during
the playback of an action macro up to the command that is requesting a selection set.
main customization file A writable CUI file that defines most of the user interface elements
(including the standard menus, toolbars, keyboard accelerators, and so on). The acad.cui file
(the default main CUI file) is automatically loaded when you start AutoCAD.
markup A single comment or a redline geometry correction inserted into a DWF file using
Autodesk Design Review.
markup set A group of markups contained within a single DWF file.
merge In tables, an adjacent cell selection that has been combined into a single cell.
mesh A tessellated, or subdivided object type that is defined by faces, edges, and vertices.
Mesh can be smoothed to achieve a more rounded appearance and creased to introduce
ridges. Before AutoCAD 2010, only the less modifiable polygon and polyface mesh was
available.
mini wheels The small version of SteeringWheels. No labels are displayed on any of the
wedges and they are often the size of the cursor.
mirror To create a new version of an existing object by reflecting it symmetrically with
respect to a prescribed line or plane. (MIRROR)
mode A software setting or operating state.
2662 | Chapter 52 Glossary