2011

lens length Defines the magnification properties of a camera's lens. The greater the lens
length, the narrower the field of view.
level of smoothness The property assigned to a mesh object to control how much the edges
of the object are smoothed. Level 0 (zero) represents the least rounded shape for a specified
mesh object. Higher levels result in increased smoothness.
light glyph The graphic representation of a point light or a spotlight.
limits See drawing limits.
line font See linetype.
linetype How a line or type of curve is displayed. For example, a continuous line has a
different linetype than a dashed line. Also called line font. (LINETYPE)
lineweight A width value that can be assigned to all graphical objects except TrueType
®
fonts and raster images.
LL84 coordinate system Common latitude longitudinal-based coordinate system where
latitude and longitude are both measured from -90 to 90 degrees.
Longitude begins at 0 degrees at the Prime Meridian in Greenwich, England and is measured
from -180 to 180.
Latitude is 0 degrees at the equator and is measured from -90 to 90.
lofted solid/surface A solid or surface that is drawn through a set of two or more
cross-section curves. The cross sections define the profile (shape) of the resulting solid or
surface. Cross sections (generally, curves or lines) can be open or closed. (LOFT)
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
main customization file A writable CUI file that defines most of the user interface elements
(including the pull-down menus and tool sets).
merge In tables, an adjacent cell selection that has been combined into a single cell.
| 1611