RAY command
Creates rays.
                Icon: 
Description
Creates a ray (semi-infinite line) from a combination of options including point, direction and angle.
                - Start of ray
 - Direction
 
Methods to begin a ray
This command has 6 methods to begin creating a ray:
- Start of ray
 - Horizontal
 - Vertical
 - Angle
 - Bisect
 - Parallel
 
You can continue adding unlimited rays until you press Enter to end the command.
- Start of ray
 - Begin creating a ray by specifying the starting point of the ray then:
 - Direction
 - Specify the direction of the ray from the starting point.
 - Horizontal
 - Begin creating a ray horizontal to the x-axis then:
 - Location
 - Specify the starting point of the ray.
 - Vertical
 - Begin creating a ray parallel to the y-axis then:
 - Location
 - Specify the starting point of the ray.
 - Angle
 - Begin creating a ray based on an angle then:
 - Enter angle
 - Specify the angle of the ray.
 - Location
 - Specify the starting point of the ray.
                                - Location
 - Ray
 - Angle
 
 - Bisect
 - Begin creating a ray which bisects the angle between two imaginary lines then:
 - Set vertex point
 - Specify the start point of the ray.
 - Bisection angle start point
 - Specify a point to define the first imaginary line. The vertex is used as the other point.
 - Bisection angle end point
 - Specify a point to define the second imaginary
                            line. The vertex is used as the other point. 
                                - Vertex point
 - Bisection angle start point
 - Bisection angle end point
 - Ray
 
 - Parallel
 - Begin creating a ray parallel to a line or polyline segment then:
 - Set offset distance for parallel infinite ray
 - Specify the offset distance for the ray.
 - Select entity for parallel infinite ray
 - Select a line or polyline segment from which to offset the ray.
 - Side for parallel infinite ray
 - Specify the side on which to place the ray. The
                            ray’s start point is parallel to the line’s start point. 
                                - Offset distance
 - Line segment
 - Ray
 
 
Options within the RAY command
After you begin creating a ray, the following options may be available:
- Reference
 - Select an entity to use a reference angle then:
 - Enter angle
 - 
                            
Specify the angle to place the ray relative to the selected entity.
 - Location
 - Specify the starting point of the ray.
 - Location
 - The Location prompt repeats
                            so that you can draw more angled rays with different starting points.
                            Press Enter to end the command. 
                                - Location
 - Ray
 - Angle
 - Reference entity
 
 - Entity
 - Select a line, arc, a polyline segment to bisect then:
 - Select side for ray bisection
 - Specify the side on which to place the ray.
 - Through point
 - Specify a point through which to draw the ray.
 - Select entity for parallel infinite ray
 - Specify the entity to offset with the ray.
 - Through the point
 - Specify the point through which to draw the ray.
                            This point is the ray’s start point. 
                                - Through point
 - Line segment
 - Ray