XLINE — Construction Line

Creates lines of infinite length in both directions.

• Command: XLINE · Global name: _XLINE · Alias: XL
• Ribbon: Home › Draw
• Menu: Draw

Draws construction lines: infinite straight lines in both directions, useful as construction guides (axes, alignments, projections between views). They do not count for zoom extents.

Usage

1. Enter XLINE (or XL) or click the button.
2. Specify a point on the line, or choose an option.

Specify a point or [Hor/Ver/Ang/Bisect/Offset]:

3. Specify a point it passes through. Each point creates another construction line through the first one; Enter ends.

Specify through point:

Options

• Hor (H) and Ver (V): horizontal or vertical lines through each point you specify.
• Ang (A): lines at a fixed angle, in degrees, through each point.

Enter angle of xline (0) or [Reference]:

• Reference (R), inside Ang: the angle is measured from a line, a polyline (its straight segment nearest to the selected point), a ray or another construction line.

Select a line object:
Enter angle of xline <0>:

• Bisect (B): the bisector of an angle, given by its vertex and a point on each side. Each further end point creates another bisector with the same vertex and start.

Specify angle vertex point:
Specify angle start point:
Specify angle end point:

• Offset (O): parallels to a line, at a distance or through a point (Enter). After each one you can select another line.

Specify offset distance or [Through] <Through>:
Specify side to offset:

Notes

• XLINE objects are created, as in AutoCAD. They cannot be trimmed or extended yet.
• For a half-line starting at a point, use RAY.

See also

RAY · LINE · OFFSET · Object snaps and precision