Autodesk AUTOCAD 2006, Command Reference Manual, Page: 868 / 1490

Tangent
Attaches a tangent direction to the marked vertex for use later in curve fitting.
The following prompt is displayed:
Specify direction of vertex tangent: Specify a point or enter an angle
Width
Changes the starting and ending widths for the segment that immediately
follows the marked vertex.
Specify starting width for next segment <current>: Specify a point, enter a value, or
press ENTER
Specify ending width for next segment <starting width>: Specify a point, enter a
value, or press ENTER
You must regenerate the polyline to display the new width.
marked vertex
segment width changed
Exit
Exits Edit Vertex mode.
Fit
Creates an arc-fit polyline, a smooth curve consisting of arcs joining each pair
of vertices. The curve passes through all vertices of the polyline and uses any
tangent direction you specify.
original Fit curve
844 | Chapter 17