**L****L**, `P1`

, `P2`

, `NDIV`

, `SPACE`

, `XV1`

, `YV1`

, `ZV1`

, `XV2`

, `YV2`

, `ZV2`

**Defines a line between two keypoints.**

`P1`

Keypoint at the beginning of line. If `P1`

=
P, graphical picking is enabled and all remaining command fields are ignored
(valid only in the GUI).

`P2`

Keypoint at the end of line.

`NDIV`

Number of element divisions within this line. Normally this
field is not used; specifying divisions with **LESIZE**, etc.
is recommended.

`SPACE`

Spacing ratio. Normally this field is not used, as specifying
spacing ratios with the **LESIZE** command is recommended.
If positive, `SPACE`

is the nominal ratio of the
last division size (at `P2`

) to the first division
size (at `P1`

). If the ratio is greater than 1,
the division sizes increase from `P1`

to `P2`

,
and if less than 1, they decrease. If `SPACE`

is
negative, then |`SPACE`

| is the nominal ratio of
the center division size to those at the ends.

The following fields are used only if specified end slopes on the line
are desired, otherwise zero curvature end slopes will be automatically calculated
to produce a line which is "straight" in the active coordinate system. To
specify end slopes, use the following fields to define a "slope vector" (one
for each end of the line, if desired) that has its tail at the origin and
its head at the point `XV`

, `YV`

, `ZV`

in
the active coordinate system [**CSYS**]. The corresponding
end slope of the line will then be parallel to this "slope vector."

`XV1`

, `YV1`

, `ZV1`

Location (in the active coordinate system) of the head of
the "slope vector" corresponding to the slope at the `P1`

end
of the line. The tail of the vector is at the origin of the coordinate system.

`XV2`

, `YV2`

, `ZV2`

Location of the head of the "slope vector" corresponding to
the slope at the `P2`

end of the line.

## Notes

Defines a line between two keypoints from `P1`

to `P2`

.
The line shape may be generated as "straight" (in the active coordinate system)
or curved. The line shape is invariant with coordinate system after it is
generated. Note that solid modeling in a toroidal coordinate system is not
recommended. A curved line is limited to 180°. Lines may be redefined
only if not yet attached to an area.