cgal/Apollonius_graph_2/include/CGAL/predicates/comparator_profiler.h

160 lines
4.3 KiB
C++

// Copyright (c) 2003 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you may redistribute it under
// the terms of the Q Public License version 1.0.
// See the file LICENSE.QPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Menelaos Karavelas <mkaravel@cse.nd.edu>
#ifndef CGAL_COMPARATOR_PROFILER_H
#define CGAL_COMPARATOR_PROFILER_H
CGAL_BEGIN_NAMESPACE
class comparator_profiler
{
public:
static bool count_cases;
static unsigned long case_1_counter;
static unsigned long case_2_counter;
static unsigned long case_3a_Jpos_counter;
static unsigned long case_3a_Jneg_counter;
static unsigned long case_3b_Jpos_counter;
static unsigned long case_3b_Jneg_counter;
static unsigned long case_4_counter;
static unsigned long case_5_counter;
static unsigned long case_degenerate_counter;
public:
static unsigned long counter_rr;
static unsigned long counter_rr_p3inf;
static unsigned long counter_rr_p4;
static unsigned long counter_rr_e;
static unsigned long counter_rr_r0;
// static unsigned long counter_rr_jneg;
static void reset()
{
count_cases = false;
case_1_counter = 0;
case_2_counter = 0;
case_3a_Jpos_counter = 0;
case_3a_Jneg_counter = 0;
case_3b_Jpos_counter = 0;
case_3b_Jneg_counter = 0;
case_4_counter = 0;
case_5_counter = 0;
case_degenerate_counter = 0;
counter_rr = 0;
counter_rr_p3inf = 0;
counter_rr_p4 = 0;
counter_rr_e = 0;
counter_rr_r0 = 0;
// counter_rr_jneg = 0;
}
template< class FT >
static void count_case(const FT& a1, const FT& b1, const FT& c1,
const FT& a2, const FT& b2, const FT& c2)
{
// works correctly only with leda_real
FT D1 = CGAL::square(b1) - a1 * c1;
FT l1 = (b1 - CGAL::sqrt(D1)) / a1;
FT r1 = (b1 + CGAL::sqrt(D1)) / a1;
if ( a1 < 0 ) { std::swap(r1, l1); }
FT D2 = CGAL::square(b2) - a2 * c2;
if ( D1 == 0 || D2 == 0 ) {
case_degenerate_counter++;
return;
}
FT l2 = (b2 - CGAL::sqrt(D2)) / a2;
FT r2 = (b2 + CGAL::sqrt(D2)) / a2;
if ( a2 < 0 ) { std::swap(r2, l2); }
if ( l1 < l2 ) {
if ( r1 > r2 ) {
FT J = a1 * b2 - a2 * b1;
if ( J > 0 ) {
case_3b_Jpos_counter++;
} else if ( J < 0 ) {
case_3b_Jneg_counter++;
} else {
case_degenerate_counter++;
}
} else if ( r1 < r2 ) {
if ( r1 < l2 ) {
case_5_counter++;
} else if ( r1 > l2 ) {
case_4_counter++;
} else {
case_degenerate_counter++;
}
} else {
case_degenerate_counter++;
}
} else if ( l1 > l2 ) {
if ( r1 < r2 ) {
FT J = a1 * b2 - a2 * b1;
if ( J > 0 ) {
case_3a_Jpos_counter++;
} else if ( J < 0 ) {
case_3a_Jneg_counter++;
} else {
case_degenerate_counter++;
}
} else if ( r1 > r2 ) {
if ( l1 < r2 ) {
case_2_counter++;
} else if ( l1 > r2 ) {
case_1_counter++;
} else {
case_degenerate_counter++;
}
} else {
case_degenerate_counter++;
}
} else {
case_degenerate_counter++;
}
}
};
bool comparator_profiler::count_cases = false;
unsigned long comparator_profiler::case_1_counter = 0;
unsigned long comparator_profiler::case_2_counter = 0;
unsigned long comparator_profiler::case_3a_Jpos_counter = 0;
unsigned long comparator_profiler::case_3a_Jneg_counter = 0;
unsigned long comparator_profiler::case_3b_Jpos_counter = 0;
unsigned long comparator_profiler::case_3b_Jneg_counter = 0;
unsigned long comparator_profiler::case_4_counter = 0;
unsigned long comparator_profiler::case_5_counter = 0;
unsigned long comparator_profiler::case_degenerate_counter = 0;
unsigned long comparator_profiler::counter_rr = 0;
unsigned long comparator_profiler::counter_rr_p3inf = 0;
unsigned long comparator_profiler::counter_rr_p4 = 0;
unsigned long comparator_profiler::counter_rr_e = 0;
unsigned long comparator_profiler::counter_rr_r0 = 0;
//unsigned long comparator_profiler::counter_rr_jneg = 0;
CGAL_END_NAMESPACE
#endif // CGAL_COMPARATOR_PROFILER_H