mirror of https://github.com/CGAL/cgal
255 lines
5.9 KiB
C++
255 lines
5.9 KiB
C++
// Copyright (c) 2025
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// INRIA Saclay-Ile de France (France)
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Andreas Fabri
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// Files needed as input for the static filter generator
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#if 0
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double determinant(
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double a00, double a01, double a02, double a03,
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double a10, double a11, double a12, double a13,
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double a20, double a21, double a22, double a23,
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double a30, double a31, double a32, double a33)
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{
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double m01 = a10*a01 - a00*a11;
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double m02 = a20*a01 - a00*a21;
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double m03 = a30*a01 - a00*a31;
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double m12 = a20*a11 - a10*a21;
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double m13 = a30*a11 - a10*a31;
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double m23 = a30*a21 - a20*a31;
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double m012 = m12*a02 - m02*a12 + m01*a22;
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double m013 = m13*a02 - m03*a12 + m01*a32;
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double m023 = m23*a02 - m03*a22 + m02*a32;
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double m123 = m23*a12 - m13*a22 + m12*a32;
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double m0123 = m123*a03 - m023*a13 + m013*a23 - m012*a33;
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return m0123;
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}
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int orientationC4(double p0, double p1, double p2, double p3,
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double q0, double q1, double q2, double q3,
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double r0, double r1, double r2, double r3,
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double s0, double s1, double s2, double s3,
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double t0, double t1, double t2, double t3)
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group p0 q0 r0 t0 q0;
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group p1 q1 r1 t1 q1;
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group p2 q2 r2 t2 q2;
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group p3 q3 r3 t3 q3;
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{
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double m01;
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m01 = (q0 - p0);
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double m02;
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m02 = (r0 - p0);
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double m03;
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m03 = (s0 - p0);
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double m04;
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m04 = (t0 - p0);
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double m11;
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m11 = (q1 - p1);
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double m12;
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m12 = (r1 - p1);
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double m13;
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m13 = (s1 - p1);
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double m14;
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m14 = (t1 - p1);
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double m21;
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m21 = (q2 - p2);
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double m22;
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m22 = (r2 - p2);
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double m23;
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m23 = (s2 - p2);
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double m24;
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m24 = (t2 - p2);
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double m31;
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m31 = (q3 - p3);
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double m32;
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m32 = (r3 - p3);
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double m33;
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m33 = (s3 - p3);
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double m34;
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m34 = (t3 - p3);
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double det = determinant(m01, m02, m03, m04,
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m11, m12, m13, m14,
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m21, m22, m23, m24,
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m31, m32, m33, m34);
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return sign(det);
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}
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//===========generated ==================
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inline int orientationC4( double p0, double p1, double p2, double p3, double q0, double q1, double q2, double q3, double r0, double r1, double r2, double r3, double s0, double s1, double s2, double s3, double t0, double t1, double t2, double t3) {
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double m01;
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m01 = (q0 - p0);
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double m02;
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m02 = (r0 - p0);
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double m03;
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m03 = (s0 - p0);
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double m04;
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m04 = (t0 - p0);
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double m11;
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m11 = (q1 - p1);
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double m12;
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m12 = (r1 - p1);
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double m13;
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m13 = (s1 - p1);
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double m14;
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m14 = (t1 - p1);
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double m21;
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m21 = (q2 - p2);
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double m22;
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m22 = (r2 - p2);
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double m23;
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m23 = (s2 - p2);
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double m24;
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m24 = (t2 - p2);
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double m31;
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m31 = (q3 - p3);
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double m32;
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m32 = (r3 - p3);
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double m33;
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m33 = (s3 - p3);
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double m34;
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m34 = (t3 - p3);
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double det;
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det = determinant( m01, m02, m03, m04, m11, m12, m13, m14, m21, m22, m23, m24, m31, m32, m33, m34 );
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int int_tmp_result;
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double eps;
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double max1 = CGAL::abs(m01);
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double am = CGAL::abs(m02);
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if( (max1 < am) ) { max1 = am; }
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am = CGAL::abs(m03);
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if( (max1 < am) ) { max1 = am; }
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am = CGAL::abs(m11);
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if( (max1 < am) ) { max1 = am; }
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am = CGAL::abs(m12);
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if( (max1 < am) ) { max1 = am; }
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am = CGAL::abs(m13);
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if( (max1 < am) ) { max1 = am; }
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am = CGAL::abs(m23);
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if( (max1 < am) ) { max1 = am; }
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double max2 = CGAL::abs(m01);
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am = CGAL::abs(m02);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m11);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m12);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m21);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m22);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m23);
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if( (max2 < am) ) { max2 = am; }
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am = CGAL::abs(m33);
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if( (max2 < am) ) { max2 = am; }
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double max3 = CGAL::abs(m04);
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am = CGAL::abs(m14);
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if( (max3 < am) ) { max3 = am; }
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am = CGAL::abs(m24);
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if( (max3 < am) ) { max3 = am; }
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am = CGAL::abs(m34);
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if( (max3 < am) ) { max3 = am; }
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double max4 = CGAL::abs(m11);
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am = CGAL::abs(m12);
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if( (max4 < am) ) { max4 = am; }
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am = CGAL::abs(m21);
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if( (max4 < am) ) { max4 = am; }
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am = CGAL::abs(m22);
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if( (max4 < am) ) { max4 = am; }
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am = CGAL::abs(m31);
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if( (max4 < am) ) { max4 = am; }
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am = CGAL::abs(m32);
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if( (max4 < am) ) { max4 = am; }
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double lower_bound_1;
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double upper_bound_1;
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lower_bound_1 = max1;
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upper_bound_1 = max1;
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if( (max2 < lower_bound_1) )
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{
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lower_bound_1 = max2;
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}
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else
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{
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if( (max2 > upper_bound_1) )
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{
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upper_bound_1 = max2;
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}
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}
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if( (max3 < lower_bound_1) )
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{
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lower_bound_1 = max3;
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}
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else
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{
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if( (max3 > upper_bound_1) )
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{
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upper_bound_1 = max3;
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}
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}
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if( (max4 < lower_bound_1) )
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{
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lower_bound_1 = max4;
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}
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else
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{
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if( (max4 > upper_bound_1) )
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{
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upper_bound_1 = max4;
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}
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}
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if( (lower_bound_1 < 2.89273249588395272840e-74) )
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{
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return FPG_UNCERTAIN_VALUE;
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}
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else
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{
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if( (upper_bound_1 > 7.23700557733225900010e+75) )
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{
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return FPG_UNCERTAIN_VALUE;
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}
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eps = (3.17768858673611327578e-14 * (((max4 * max2) * max1) * max3));
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if( (det > eps) )
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{
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int_tmp_result = 1;
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}
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else
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{
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if( (det < -eps) )
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{
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int_tmp_result = -1;
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}
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else
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{
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return FPG_UNCERTAIN_VALUE;
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}
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}
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}
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return int_tmp_result;
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}
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#endif
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