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edits to tests and demo; using hyperbolic random point generator

This commit is contained in:
Iordan Iordanov 2017-02-27 18:35:31 +01:00
parent f7799fa3e6
commit 800a14fffd
8 changed files with 233 additions and 80 deletions
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28
Periodic_4_hyperbolic_triangulation_2/demo/Periodic_4_hyperbolic_triangulation_2/Periodic_4_hyperbolic_Delaunay_triangulation_2_demo.cpp
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@ -5,6 +5,7 @@
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_traits_2.h>
#include <CGAL/point_generators_2.h>
#include <CGAL/Hyperbolic_octagon_translation_matrix.h>
#include <CGAL/Hyperbolic_random_points_in_disc_2.h>
#include <CGAL/Qt/HyperbolicPainterOstream.h>
// for viewportsBbox
@ -249,7 +250,6 @@ void
MainWindow::on_actionClear_triggered()
{
dt.clear();
dt.insert_dummy_points();
emit(changed());
}
@ -276,21 +276,27 @@ MainWindow::on_actionInsertRandomPoints_triggered()
QApplication::setOverrideCursor(Qt::WaitCursor);
typedef CGAL::Creator_uniform_2<double, Point> Creator;
CGAL::Random_points_in_disc_2<Point, Creator> g( 1.0 );
Side_of_fundamental_octagon pred;
// typedef CGAL::Creator_uniform_2<double, Point> Creator;
// CGAL::Random_points_in_disc_2<Point, Creator> g( 1.0 );
typedef CGAL::Cartesian<double>::Point_2 Point_d;
vector<Point_d> v;
Hyperbolic_random_points_in_disc_2_double(v, 5*number_of_points, -1, 0.159);
Traits::Side_of_fundamental_octagon pred;
vector<Point> pts;
int cnt = 0;
do {
Point pt = *g;
++g;
if (pred(pt) != CGAL::ON_UNBOUNDED_SIDE) {
pts.push_back(pt);
//processInput(make_object(pt));
for (int i = 0; cnt < number_of_points && i < v.size(); i++) {
if (pred(v[i]) != CGAL::ON_UNBOUNDED_SIDE) {
pts.push_back(Point(v[i].x(), v[i].y()));
cnt++;
}
} while (cnt < number_of_points);
}
if (pts.size() < number_of_points) {
cout << "Creation of random points failed! Please try again..." << endl;
return;
}
CGAL::Timer tt;
tt.start();

12
Periodic_4_hyperbolic_triangulation_2/include/CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_2.h
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@ -196,6 +196,12 @@ namespace CGAL {
return (cnt == 0);
}
void clear() {
Base::clear();
insert_dummy_points(true);
}
}; // class Periodic_4_hyperbolic_Delaunay_triangulation_2
@ -346,9 +352,9 @@ insert(const Point &p, Face_handle start) {
if (side != CGAL::ON_UNBOUNDED_SIDE) {
Offset loff;
if ( start == Face_handle() ) {
Locate_type lt = Periodic_4_hyperbolic_Delaunay_triangulation_2<Gt, Tds>::FACE;
//start = this->hyperbolic_locate(p, loff, lt, li, lj, start); //this->euclidean_visibility_locate(p, loff);
start = this->euclidean_locate(p, loff);
Locate_type lt;
int li;
start = this->euclidean_locate(p, lt, li, loff);
if (lt == Periodic_4_hyperbolic_Delaunay_triangulation_2<Gt, Tds>::VERTEX) {
return Vertex_handle();
}

6
Periodic_4_hyperbolic_triangulation_2/include/CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_traits_2.h
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@ -187,7 +187,6 @@ public:
typedef typename R::Segment_2 Euclidean_segment_2; //only used internally here
typedef boost::variant<Circular_arc_2, Euclidean_segment_2> Hyperbolic_segment_2;
// Wrappers for the offset adapter
typedef Hyperbolic_traits_with_offsets_2_adaptor<Self, typename R::Compare_x_2> Compare_x_2;
typedef Hyperbolic_traits_with_offsets_2_adaptor<Self, typename R::Compare_y_2> Compare_y_2;
@ -508,11 +507,14 @@ public:
return *this;
}
class Side_of_fundamental_octagon {
public:
Side_of_fundamental_octagon() {}
CGAL::Bounded_side operator()(Point_2 p) {
template <class Point_2_template>
CGAL::Bounded_side operator()(Point_2_template p) {
// Rotation by pi/4
CGAL::Aff_transformation_2<R> rotate(CGAL::ROTATION, std::sqrt(0.5), std::sqrt(0.5));

2
Periodic_4_hyperbolic_triangulation_2/include/CGAL/Periodic_4_hyperbolic_triangulation_dummy_14.h
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@ -65,6 +65,8 @@ namespace CGAL {
f_cnt = fcount;
v_cnt = vcount;
dummy_points.clear();
if (rational) {
// Push back the origin

1
Periodic_4_hyperbolic_triangulation_2/test/Periodic_4_hyperbolic_triangulation_2/CMakeLists.txt
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@ -25,6 +25,7 @@ if ( CGAL_FOUND )
create_single_source_cgal_program( "test_p4ht2_matrix.cpp" )
create_single_source_cgal_program( "test_p4ht2_words.cpp" )
create_single_source_cgal_program( "test_p4ht2_triangulation.cpp" )
create_single_source_cgal_program( "test_p4ht2_hyperbolic_vs_euclidean.cpp" )
# create_single_source_cgal_program( "test_p4ht2_simple_insertion.cpp" )

129
Periodic_4_hyperbolic_triangulation_2/test/Periodic_4_hyperbolic_triangulation_2/test_p4ht2_hyperbolic_vs_euclidean.cpp Normal file
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@ -0,0 +1,129 @@
#include <boost/tuple/tuple.hpp>
#include <boost/random/linear_congruential.hpp>
#include <boost/random/uniform_smallint.hpp>
#include <boost/random/variate_generator.hpp>
#include <CGAL/point_generators_2.h>
#include <CGAL/Hyperbolic_random_points_in_disc_2.h>
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_2.h>
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_traits_2.h>
#include <CGAL/CORE_Expr.h>
#include <CGAL/Cartesian.h>
#include <CGAL/determinant.h>
#include <CGAL/Delaunay_triangulation_2.h>
#include <CGAL/Periodic_2_Delaunay_triangulation_traits_2.h>
#include <CGAL/Periodic_2_Delaunay_triangulation_2.h>
#include <CGAL/Timer.h>
typedef CORE::Expr NT;
typedef CGAL::Cartesian<NT> Kernel;
typedef CGAL::Periodic_4_hyperbolic_Delaunay_triangulation_traits_2<Kernel> Traits;
typedef CGAL::Periodic_4_hyperbolic_Delaunay_triangulation_2<Traits> Triangulation;
typedef Hyperbolic_octagon_translation_matrix<NT> Octagon_matrix;
typedef Kernel::Point_2 Point;
typedef Triangulation::Vertex_handle Vertex_handle;
typedef Traits::Side_of_fundamental_octagon Side_of_fundamental_octagon;
typedef CGAL::Cartesian<double>::Point_2 Point_double;
typedef CGAL::Creator_uniform_2<double, Point_double > Creator;
typedef CGAL::Delaunay_triangulation_2<Kernel> Euclidean_triangulation;
typedef CGAL::Periodic_2_Delaunay_triangulation_traits_2<Kernel> Ptraits;
typedef CGAL::Periodic_2_Delaunay_triangulation_2<Ptraits> PEuclidean_triangulation;
int main(int argc, char** argv) {
if (argc < 2) {
cout << "usage: " << argv[0] << " [number_of_points_to_insert] [optional: number_of_iterations]" << endl;
return -1;
}
int N = atoi(argv[1]);
int iters = 1;
if (argc == 3) {
iters = atoi(argv[2]);
}
Side_of_fundamental_octagon pred;
cout << "---- for best results, make sure that you have compiled me in Release mode ----" << endl;
double extime1 = 0.0;
double extime3 = 0.0;
for (int exec = 1; exec <= iters; exec++) {
vector<Point_double> v;
std::vector<Point> pts;
// We can consider points only in the circle circumscribing the fundamental domain
Hyperbolic_random_points_in_disc_2_double(v, 5*N, -1, 0.159);
int cnt = 0;
int idx = 0;
do {
Point pt = Point(v[idx].x(), v[idx].y());
if (pred(pt) != CGAL::ON_UNBOUNDED_SIDE) {
pts.push_back(pt);
cnt++;
}
idx++;
} while (cnt < N && idx < v.size());
if (cnt < N) {
cout << "I failed to generate all the random points! Exiting..." << endl;
return -1;
}
cout << "iteration " << exec << ": inserting into hyperbolic periodic triangulation... "; cout.flush();
Triangulation tr;
tr.insert_dummy_points(true);
CGAL::Timer t1;
t1.start();
for (int j = 0; j < pts.size(); j++) {
tr.insert(pts[j]);
}
t1.stop();
extime1 += t1.time();
cout << "DONE! (# of vertices = " << tr.number_of_vertices() << ", time = " << t1.time() << " secs)" << endl;
// cout << "inserting into Euclidean periodic triangulation... "; cout.flush();
// PEuclidean_triangulation petr;
// CGAL::Timer t2;
// t2.start();
// for (int j = 0; j < pts.size(); j++) {
// petr.insert(pts[j]);
// }
// t2.stop();
// cout << "DONE!" << endl;
cout << "iteration " << exec << ": inserting into Euclidean non-periodic triangulation... "; cout.flush();
Euclidean_triangulation etr;
CGAL::Timer t3;
t3.start();
for (int j = 0; j < pts.size(); j++) {
etr.insert(pts[j]);
}
t3.stop();
extime3 += t3.time();
cout << "DONE! (# of vertices = " << etr.number_of_vertices() << ", time = " << t3.time() << " secs)" << endl;
}
extime1 /= (double)iters;
extime3 /= (double)iters;
cout << "Hyperbolic periodic triangulation: average time = " << extime1 << endl;
//cout << "Euclidean periodic triangulation: #vertices = " << petr.number_of_vertices() << ", insertion time = " << t2.time() << endl;
cout << "Euclidean non-periodic triangulation: average time = " << extime3 << endl;
return 0;
}

68
Periodic_4_hyperbolic_triangulation_2/test/Periodic_4_hyperbolic_triangulation_2/test_p4ht2_insertion.cpp
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@ -1,5 +1,5 @@
#include <CGAL/basic.h>
#include <boost/tuple/tuple.hpp>
#include <boost/random/linear_congruential.hpp>
#include <boost/random/uniform_smallint.hpp>
@ -9,6 +9,7 @@
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_2.h>
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_traits_2.h>
#include <CGAL/CORE_Expr.h>
//#include <CGAL/leda_real.h>
#include <CGAL/Cartesian.h>
#include <CGAL/determinant.h>
@ -17,6 +18,7 @@
typedef CORE::Expr NT;
//typedef leda_real NT;
typedef CGAL::Cartesian<NT> Kernel;
typedef CGAL::Periodic_4_hyperbolic_Delaunay_triangulation_traits_2<Kernel> Traits;
typedef CGAL::Periodic_4_hyperbolic_Delaunay_triangulation_2<Traits> Triangulation;
@ -29,17 +31,30 @@ typedef CGAL::Cartesian<double>::Point_2
typedef CGAL::Creator_uniform_2<double, Point_double > Creator;
int main(void) {
int main(int argc, char** argv) {
if (argc < 2) {
cout << "usage: " << argv[0] << " [number_of_points_to_insert] [optional: number_of_iterations]" << endl;
return -1;
}
int N = atoi(argv[1]);
int iters = 1;
if (argc == 3) {
iters = atoi(argv[2]);
}
Side_of_fundamental_octagon pred;
int N = 10000;
std::vector<Point> pts;
cout << "---- for best results, make sure that you have compiled me in Release mode ----" << endl;
cout << "generating " << N << " random points in the octagon..." << endl;
double extime = 0.0;
for (int exec = 1; exec <= iters; exec++) {
vector<Point_double> v;
Hyperbolic_random_points_in_disc_2_double(v, 40*N, -1);
std::vector<Point> pts;
// We can consider points only in the circle circumscribing the fundamental domain
Hyperbolic_random_points_in_disc_2_double(v, 5*N, -1, 0.159);
int cnt = 0;
int idx = 0;
@ -53,40 +68,27 @@ int main(void) {
} while (cnt < N && idx < v.size());
if (cnt < N) {
cout << "FAILED! Exiting..." << endl;
cout << "I failed at the generation of random points! Exiting..." << endl;
return -1;
}
cout << "DONE!" << endl;
cout << "iteration " << exec << ": inserting into triangulation (rational dummy points)... "; cout.flush();
Triangulation tr;
tr.insert_dummy_points(true);
cout << "inserting into triangulation with rational dummy points..." << endl;
Triangulation tr2;
tr2.insert_dummy_points(true);
CGAL::Timer t2;
t2.start();
CGAL::Timer tt;
tt.start();
for (int j = 0; j < pts.size(); j++) {
//cout << " now at " << j << endl;
Vertex_handle vh = tr2.insert(pts[j]);
tr.insert(pts[j]);
}
t2.stop();
cout << " DONE!" << endl;
cout << "inserting into triangulation with exact dummy points..." << endl;
Triangulation tr1;
tr1.insert_dummy_points(false);
CGAL::Timer t1;
t1.start();
for (int j = 0; j < pts.size(); j++) {
cout << " now at " << j << endl;
Vertex_handle vh = tr1.insert(pts[j]);
tt.stop();
cout << "DONE! (# of vertices = " << tr.number_of_vertices() << ", time = " << tt.time() << " secs)" << endl;
extime += tt.time();
}
t1.stop();
cout << " DONE!" << endl;
cout << "Triangulation with exact dummy points: #vertices = " << tr1.number_of_vertices() << ", insertion time = " << t1.time() << endl;
cout << "Triangulation with rational dummy points: #vertices = " << tr2.number_of_vertices() << ", insertion time = " << t2.time() << endl;
double avgtime = extime / (double)iters;
cout << "---------------------------------------" << endl;
cout << "Average execution time over " << iters << " iterations: " << avgtime << " secs" << endl << endl;
return 0;
}

17
Periodic_4_hyperbolic_triangulation_2/test/Periodic_4_hyperbolic_triangulation_2/test_p4ht2_remove_dummy_points.cpp
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@ -5,6 +5,7 @@
#include <boost/random/uniform_smallint.hpp>
#include <boost/random/variate_generator.hpp>
#include <CGAL/point_generators_2.h>
#include <CGAL/Hyperbolic_random_points_in_disc_2.h>
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_2.h>
#include <CGAL/Periodic_4_hyperbolic_Delaunay_triangulation_traits_2.h>
@ -21,7 +22,9 @@ typedef Triangulation::Face_iterator
typedef Triangulation::Vertex_handle Vertex_handle;
typedef Triangulation::Point Point;
typedef Traits::Side_of_fundamental_octagon Side_of_fundamental_octagon;
typedef CGAL::Creator_uniform_2<NT, Point > Creator;
typedef CGAL::Cartesian<double>::Point_2 Point_double;
typedef CGAL::Creator_uniform_2<double, Point_double > Creator;
int main(int argc, char** argv) {
@ -31,7 +34,6 @@ int main(int argc, char** argv) {
}
int iter = atoi(argv[1]);
CGAL::Random_points_in_disc_2<Point, Creator> g( 1.0 );
Side_of_fundamental_octagon pred;
int min = 1000;
@ -40,16 +42,19 @@ int main(int argc, char** argv) {
for (int j = 0; j < iter; j++) {
cout << "Iteration " << (j+1) << "/" << iter << "..." << endl;
vector<Point_double> v;
Hyperbolic_random_points_in_disc_2_double(v, 500, -1, 0.159);
Triangulation tr;
tr.insert_dummy_points();
tr.insert_dummy_points(true);
assert(tr.is_valid(true));
int cnt = 0;
int idx = 0;
do {
Point pt = *g;
++g;
Point_double pt = v[idx++];
if (pred(pt) != CGAL::ON_UNBOUNDED_SIDE) {
tr.insert(pt);
tr.insert(Point(pt.x(), pt.y()));
cnt++;
}
} while (tr.number_of_dummy_points() > 0);