Drawing infinite lines

An Infinite Line (XLINE) Is a line through a given point, oriented at a specified angle and extending to infinity in both directions. Because infinite lines extend to infinity, they are not calculated as part of the drawing extents.

The default method for drawing an infinite line is to select a point and then specify its direction.

As they are often used as references for creating other entities, Rays and Infinite Lines are sometimes referred to as construction lines.

The Infinite Line tool is available on:

  • The Draw menu.
  • The Draw toolbar.
  • The Draw ribbon panel.

General procedure

  1. Launch the XLINE command.

    Prompts you:

    Infinite line: Set point along line or [Horizontal/Vertical/Angle/Bisect/Parallel]:

  2. Specify the start point of the infinite line.

    The infinite line displays dynamically.

  3. Specify the direction of the infinite line.

    The next infinite line displays dynamically.

  4. (option) Keep specifying directions to draw a series of infinite lines, starting from the same point.

  5. Right click to stop.