2013

Half width Specifies the width from the center of a wide polyline segment to
one of its edges.
The starting half-width becomes the default ending half-width. The ending
half-width becomes the uniform half-width for all subsequent segments until
you change the half-width again. The starting and ending points of wide line
segments are at the center of the line.
Typically, the intersections of adjacent wide polyline segments are beveled.
No beveling is performed for nontangent arc segments or very acute angles
or when a dot-dash linetype is used.
Radius Specifies the radius of the arc segment.

Endpoint of Arc (page 798)

Angle (page 798)
Second Pt Specifies the second point and endpoint of a three-point arc.

Endpoint of Arc (page 798)
Width Specifies the width of the next arc segment.
The starting width becomes the default ending width. The ending width
becomes the uniform width for all subsequent segments until you change the
width again. The starting and ending points of wide line segments are at the
center of the line.
Typically, the intersections of adjacent wide polyline segments are beveled.
No beveling is performed for nontangent arc segments, very acute angles, or
when a dot-dash linetype is used.
Length Draws a line segment of a specified length at the same angle as the
previous segment. If the previous segment is an arc, the new line segment is
drawn tangent to that arc segment.
Undo Removes the most recent arc segment added to the polyline.
Close Draws an arc segment from the last point specified to the starting point,
creating a closed polyline. At least two points must be specified to use this
option.
See also:
Obtain Distances, Angles, and Point Locations
Obtain Area and Mass Properties Information
M Commands | 619