## Kernel::HasOnPositiveSide_2

A model for this must provide:

bool

fo.operator() ( | Kernel::Circle_2 c, Kernel::Point_2 p)

|  | returns true iff p lies on the positive side of c.
bool | fo.operator() ( Kernel::Line_2 l, Kernel::Point_2 p)
|  | returns true iff p lies on the positive side of l (l is considered a halfspace).

bool

fo.operator() ( | Kernel::Triangle_2 t, Kernel::Point_2 p)

|  | returns true iff p lies on the positive side of t.

### Refines

AdaptableFunctor (with two arguments)

### See Also

CGAL::Circle_2<Kernel>
CGAL::Line_2<Kernel>
CGAL::Triangle_2<Kernel>