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bbox() now use to_interval

This commit is contained in:
Andreas Fabri 2003-06-02 14:05:16 +00:00
parent 1db2a3f46e
commit d3a092e9f6
1 changed files with 14 additions and 6 deletions
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20
Packages/Cartesian_kernel/include/CGAL/Cartesian/Circle_2.h
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@ -23,6 +23,7 @@
#define CGAL_CARTESIAN_CIRCLE_2_H
#include <CGAL/utility.h>
#include <CGAL/Interval_arithmetic.h>
#include <CGAL/Cartesian/predicates_on_points_2.h>
CGAL_BEGIN_NAMESPACE
@ -231,14 +232,21 @@ CircleC2<R>::opposite() const
template < class R >
CGAL_KERNEL_INLINE
Bbox_2
CircleC2<R>::bbox() const // FIXME : to_interval()
CircleC2<R>::bbox() const
{
// Robustness problems.
double cx = CGAL::to_double(center().x());
double cy = CGAL::to_double(center().y());
double radius = CGAL::sqrt(CGAL::to_double(squared_radius()));
Bbox_2 b = center().bbox();
return Bbox_2(cx - radius, cy - radius, cx + radius, cy + radius);
Interval_nt<> x (b.xmin(), b.xmax());
Interval_nt<> y (b.ymin(), b.ymax());
Interval_nt<> sqr = CGAL::to_interval(squared_radius());
Interval_nt<> r = CGAL::sqrt(sqr);
Interval_nt<> minx = x-r;
Interval_nt<> maxx = x+r;
Interval_nt<> miny = y-r;
Interval_nt<> maxy = y+r;
return Bbox_2(minx.inf(), miny.inf(), maxx.sup(), maxy.sup());
}
template < class R >