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CGAL 6.0 - 2D and 3D Linear Geometry Kernel
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AdaptableBinaryFunction CGAL::Line_2<Kernel> CGAL::Ray_2<Kernel> CGAL::Segment_2<Kernel> Operations | |
A model of this concept must provide: | |
| Kernel::Point_2 | operator() (const Kernel::Line_2 &l, const Kernel::FT i) |
returns an arbitrary point on l. | |
| Kernel::Point_2 | operator() (const Kernel::Ray_2 &r, const Kernel::FT i) |
returns a point on r. | |
| Kernel::Point_2 | operator() (const Kernel::Segment_2 &s, int i) |
returns source or target of s: point(0) returns the source of s, point(1) returns the target of s. | |
| Kernel::Point_2 Kernel::ConstructPointOn_2::operator() | ( | const Kernel::Line_2 & | l, |
| const Kernel::FT | i | ||
| ) |
returns an arbitrary point on l.
It holds point(i) == point(j), iff i==j. Furthermore, is directed from point(i) to point(j), for all i < j.
| Kernel::Point_2 Kernel::ConstructPointOn_2::operator() | ( | const Kernel::Ray_2 & | r, |
| const Kernel::FT | i | ||
| ) |
returns a point on r.
point(0) is the source, point(i), with i>0, is different from the source.
i>= 0. | Kernel::Point_2 Kernel::ConstructPointOn_2::operator() | ( | const Kernel::Segment_2 & | s, |
| int | i | ||
| ) |
returns source or target of s: point(0) returns the source of s, point(1) returns the target of s.
The parameter i is taken modulo 2, which gives easy access to the other end point.