2004

Draw Construction and Reference Geometry | 291
■ Angle. Creates a construction line in one of two ways. Either you select a
reference line and then specify the angle of the construction line from
that line, or you create a construction line at a specific angle to the
horizontal axis by specifying an angle and then a point through which the
construction line should pass.
■ Bisector. Creates a construction line that bisects an angle you specify. You
specify the vertex and the lines that create the angle.
■ Offset. Creates a construction line parallel to a baseline you specify. You
specify the offset distance, select the baseline, and then indicate on which
side of the baseline to locate the construction line.
Rays
A ray is a line in three-dimensional space that starts at a point you specify
and extends to infinity. Unlike construction lines, which extend in two direc-
tions, rays extend in only one direction. Using rays instead of construction
lines can help reduce visual clutter. Like construction lines, rays are ignored
by commands that display the drawing extents.
To create a construction line by specifying two points
1 From the Draw menu, choose Construction Line.
2 Specify a point to define the root of the construction line.
3 Specify a second point through which the construction line should pass.
4 Continue to specify construction lines as needed.
All subsequent xlines pass through the first point specified.
5 Press
ENTER to end the command.
Draw toolbar
Command line
XLINE
three rays
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