CoreandServices.book - Ocean - Schlumberger

This is construction from two points, where one point is defined as the origin and the
instance passes through the second point:
Geometry
Point3 origin = new Point3(0, 0, 0);
Point3 point = new Point3( 100.0, 50.0, 75.0);
Ray3 ray = new Ray3( origin, point);
The copy constructor that creates a copy of an existing ray looks like:
Ray3 myRay = new Ray3(originlRay);
The public properties for the Ray2 and Ray3 classes include:
IsDegenerate - This property returns true if the ray is degenerated to a point.
Direction - This property returns the direction of the ray.
Origin - This property returns the origin point of the ray.
Point3 originPt = new Point3(5, 5, 5);
Direction3 rayDi = new Direction3(3,3,3);
Ray3 r = new Ray3(originPt, rayDi);
bool result = r.IsDegenerate;
//result is false
Ray3 r2 = new Ray3(originPt, Direction3.Zero);
bool result = r2.IsDegenerate;
//result is true
The Ray2 and Ray3 classes define the public field:
Null - The undefined ray has an undefined origin and undefined direction.
Ray3 r3 = Ray3.Null;
Ray3 defines the following public operators:
- (minus) Operator – The minus sign operator returns a ray with opposite direction.
Point3 originPt = new Point3(5, 5, 5);
Direction3 rayDi = new Direction3(3,3,3);
Ray3 r = new Ray3(originPt, rayDi);
Ray3 r1 = -r;
Schlumberger Private
Ocean Services 4-187