2011

Table Of Contents
initial environment The variables and settings for new drawings as defined
by the default drawing template, such as acad.dwg or acadiso.dwg. See also
template drawing.
input property In a dynamic block definition, a parameter property other
than that of a lookup, alignment, or base point parameter that you can add
as a column to a lookup table. When the parameter 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)
interface element A user interface object that can be customized, such as a
toolbar, pull-down menu, shortcut key, dockable window, and so on.
interpolation points Defining points that a B-spline passes through. See also
approximation points and fit points.
island An enclosed area within another enclosed area. Islands may be detected
as part of the process of creating hatches, polylines, and regions. (BHATCH,
BOUNDARY)
ISO For International Standards Organization. The organization that sets
international standards in all fields except electrical and electronics.
Headquarters are in Geneva, Switzerland.
isoline Gridlines that appear on regular and NURBS surfaces. They show the
shape of the surface.
isometric snap style A drafting option that aligns the cursor with two of three
isometric axes and displays grid, making 2D isometric drawings easier to create.
isoparm Lines of constant U or V values that run along a NURBS surface. They
show the shape of the surface as defined by the control vertices.
key point In a dynamic block definition, the point on a parameter that drives
its associated action when edited in the block reference.
knot The knot parameterization setting affects the shape of a fit point spline.
The different settings affect the shape of the curve as it passes through the fit
points.
label block A block used to label views and details. Labels contain data, such
as a title, view number, and scale, that is associated with the referenced view.
See also callout block.
landing The portion of a leader object that acts as a pointer to the object
being called out. A landing can either be a straight line or a spline curve.
2168 | Glossary