CoreandServices.book - Ocean - Schlumberger

Geometry
The Plane3 class defines the public field:
Null - The undefined plane consists of an undefined point and an undefined direction.
Plane3 pl3 = Plane3.Null;
Plane3 defines the following public operators:
- (minus) Operator – The minus operator returns a plane with a normal pointing in the
opposite direction.
Point3 pt1 = new Point3(10, 10, 10);
Direction3 di1 = new Direction3(5, 5, 5);
Plane3 pl1 = new Plane3(pt1, di1);
//pl1 is {5x+5y+5z+-150=0}
Plane3 pl4 = -pl1;
//pl4 is {-5x+-5y+-5z+150=0}
!= Operator - This operation compares two planes for inequality. This returns true if the
plane instances do not represent the same plane.
Plane3 pl6 = +pl1;
//pl6 is {5x+5y+5z+-150=0}
+ Operator - This operation returns the same plane.
Plane3 pl6 = +pl1;
//pl6 is {5x+5y+5z+-150=0}
== Operator - This operation compares two planes for equality. This returns true if the
plane instances represent the same plane.
An instance constructed with a given normal will not be equal to an instance constructed
with a normal in the same orientation but pointing in the opposite direction (even though
all points lying on in the first plane instance will lie on the second instance). Note that
comparing Plane3.Null to any other instance will return false. This is to maintain
consistency with the behavior of floating point NaN comparison.
bool result = (pl6 == pl1);
//result is true;
The Plane3 class defines the following public methods:
4-180 Ocean Application Development Framework 2008.1
Schlumberger Private