Drawing rays

A ray is a line in three-dimensional space that starts at a point and extends to infinity. Because rays extend to infinity, they are not calculated as part of the drawing extents. The default method for drawing a ray is to select the start point of the ray, and then specify its direction. You can draw a ray in any of the following ways:

• Horizontal draws the ray parallel to the x-axis of the current user coordinate system (UCS).
• Vertical draws the ray parallel to the y-axis of the current UCS.
• Angle draws the ray parallel to a specified angle.
• Bisect draws the ray perpendicular to an existing entity.
• Parallel draws the ray parallel to an existing entity.

To draw a ray

1. Do one of the following:
• Choose Insert > Ray.
• On the Draw 2D toolbar, click the Ray tool ().
• Type ray and then press Enter.
2. Specify the start point.
3. Specify the direction.
4. To complete the command, press Enter.

Start point (A) and direction (B).