3 PTS lets you dimension the angle between two points and
a vertex that you specify.

Choose an option from the Position Menu to select the
vertex of the angle you want to dimension.

The vertex and the endpoints do not have to lie in
the same plane.

Indicate the first and second endpoints of the angle to
dimension using options from the Position Menu.

The three points that you select define two intersecting
reference lines and four angles for dimensioning. To make
it easier to identify the angle you want to dimension,
CADKEY draws temporary dashed that extend to the limits
of the screen along the reference lines.

Cursor select a position somewhere inside the angle you
want to dimension.

CADKEY prompts you to indicate which angle you want to
measure, INNER or OUTER. If you choose INNER, CADKEY
dimensions the inner angle; if you choose OUTER, CADKEY
dimensions the outer angle.

Indicate the dimension text position using an option from
the Position Menu.

CADKEY draws the dimension, arrows, and leader lines 
according to the current settings in DETAIL, SET. If you 
make a mistake, choose UNDO in the Break Area or press 
(Alt)-(I). CADKEY deletes the dimension and leader lines
and you can indicate another dimension text position.

CADKEY displays temporary lines for 3PTS. When you redraw,
the temporary lines disappear, but the dimension remains.
