Line_arc_2<CircularKernel>

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CGAL::Line_arc_2<CircularKernel>

Is Model for the Concepts

CircularKernel::LineArc_2

Creation

Line_arc_2<CircularKernel> la ( Line_2<CircularKernel> l,
Circular_arc_point_2<CircularKernel> p1,
Circular_arc_point_2<CircularKernel> p2);

Construct the line segment supported by l, whose source is p1 and whose target is p2.

Precondition:

p1 and p2 lie on l.

Line_arc_2<CircularKernel> la ( Line_2<CircularKernel> l, Point_2<CircularKernel> p1, Point_2<CircularKernel> p2);

Same.

Line_arc_2<CircularKernel> la ( Segment_2<CircularKernel> s);

Access Functions

Line_2<CircularKernel>	la.supporting_line ()

Circular_arc_point_2<CircularKernel>
	la.source ()
Circular_arc_point_2<CircularKernel>
	la.target ()

Circular_arc_point_2<CircularKernel>
	la.left ()
Circular_arc_point_2<CircularKernel>
	la.right ()

Bbox_2	la.bbox ()	Returns a bounding box containing the line segment.

Query Functions

bool

la.is_vertical ()

Operations

bool	la1 == la2	Test for equality. Two arcs are equal, iff their non-oriented supporting lines are equal (i.e. they contain the same set of points) and their endpoints are equal.

bool	la1 != la2	Test for non-equality.

I/O

istream&	std::istream& is >> Line_arc_2 & ca
ostream&	std::ostream& os << Line_arc_2 ca

The format for input/output is, for each line arc: a Line_2 (the supporting line) and two Circular_arc_point_2 (the two endpoints), under the condition that the endpoints are actually lying on the line.