unaryMinus
-Line => Line
Returns this line with the opposite orientation — the same cut through the plane, positive side swapped.
Negates all three components, raw at full Double precision: for a finite line the unit Line.normal and the running Line.attitude both flip and the origin's signed distance changes sign; a line at infinity negates its raw magnitude, which is data. Identity is orientation-sensitive, so a line and its negation compare unequal (the all-zero line at infinity being its own negation); compare Line.canonical for unoriented equivalence — (-line).canonical == line.canonical. The result is the receiver's own class: the negated geometry returns through Line.copy, preserving a subclass that overrides the hook.
Receiver
The Line to negate.
Return
The negated line, as the receiver's class.
Type Parameters
The receiver's type, preserved in the result.
-Dipole => Dipole
Returns this dipole with its endpoints exchanged — the same point pair, opposite orientation.
Negates all six components, raw at full Double precision — exactly what swapping the wedge order does, so Dipole.start and Dipole.end exchange while Dipole.center and Dipole.radius2 are untouched; Dipole.attitude flips. A dipole at infinity negates its raw components, which are data. Identity is orientation-sensitive, so a dipole and its negation compare unequal; compare Dipole.canonical for unoriented equivalence — (-dipole).canonical == dipole.canonical. The result is the receiver's own class: the negated geometry returns through Dipole.copy, preserving a subclass that overrides the hook.
Receiver
The Dipole to negate.
Return
The negated dipole, as the receiver's class.
Type Parameters
The receiver's type, preserved in the result.
-Circle => Circle
Returns this circle turned inside out — the same point set with the interior swapped.
Negates all four components: a classic circle comes back inside out and vice versa (Circle.isInsideOut flips), with center and radius untouched. Identity is orientation-sensitive, so a circle and its negation compare unequal; compare Circle.canonical for unoriented equivalence — (-circle).canonical == circle.canonical. The result is the receiver's own class: the negated geometry returns through Circle.copy, preserving a subclass that overrides the hook.
Receiver
The Circle to turn inside out.
Return
The negated circle, as the receiver's class.
Type Parameters
The receiver's type, preserved in the result.
-Direction => Direction
Returns the opposite free vector: the same length, reversed heading.
Component-wise negation, raw at full Double precision. The operand carries the exact zero weight, so the result is at infinity by construction — no finite position can leak in. The zero direction is its own negation.
Receiver
The direction to negate.
Return
The component-wise negation, as a Direction.
-RoundDirection => RoundDirection
Returns the opposite direction: the same magnitude, reversed heading.
Component-wise negation, raw at full Double precision — the conformal component RoundPoint.aw is live data and negates with the extents, so the whole at-infinity vector flips. The operand carries the exact zero round weight, so the result is at infinity by construction — no finite position can leak in. The zero direction is its own negation.
Receiver
The direction to negate.
Return
The component-wise negation, as a RoundDirection.