2013

solid history
A property of a solid that allows you to see and modify the original forms of
the solid.
solid object
An object that represents the entire volume of an object, for example a box.
solid primitive
A basic solid form. Solid primitives include: box, wedge, cone, cylinder, sphere,
torus, and pyramid.
spatial index
A list that organizes objects based on their location in space. A spatial index
is used to locate what portion of the drawing is read when you partially open
a drawing. Saving a spatial index with a drawing also enhances performance
when working with external references. The INDEXCTL system variable
controls whether layer and spatial indexes are saved with a drawing.
specular reflection
The light in a narrow cone where the angle of the incoming beam equals the
angle of the reflected beam.
spline-fit
Uses the vertices of the selected polyline as the control points, or frame, of a
curve approximating a B-spline. This curve, called a spline-fit polyline, passes
through the first and last control points unless the original polyline was closed.
split face
A mesh face that has been subdivided along a specified vector.
STB file
For plot style table file. Contains plot styles and their characteristics.
stretch frame
In a dynamic block definition that contains a stretch action or a polar stretch
action, determines how the objects within or crossed by the frame are edited
in the block reference.
subdivision
A division, or tessellation in a mesh object. As a mesh object is smoothed, the
number of subdivisions increases.
788 | Glossary