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Creating simple entities

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:
  2. Choose Draw > Ray.
  3. On the Draw toolbar, click the Ray tool (
  4. ).
  • Type ray and then press Enter.
  • Specify the start point.
  • Specify the direction.
  • To complete the command, press Enter.
Start point ( A ) and direction ( B ).