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link to new example added in manual 

cosmetic changes in examples
This commit is contained in:
Monique Teillaud 2008-09-16 08:09:23 +00:00
parent c6597a6402
commit 18ebbef2b7
3 changed files with 29 additions and 20 deletions
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11
Circular_kernel_2/doc_tex/Circular_kernel_2/CK.tex
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@ -63,13 +63,18 @@ that is based on similar techniques as
%benchmarking should still be done and further optimizations will be %benchmarking should still be done and further optimizations will be
%provided for future releases.} %provided for future releases.}
\section{Example} \section{Examples}
This example shows how to construct circles or circular arcs from The first example shows how to construct circles or circular arcs from
points, and how to compute intersections between them. points, and how to compute intersections between them using the global
function.
\ccIncludeExampleCode{Circular_kernel_2/intersecting_arcs.cpp} \ccIncludeExampleCode{Circular_kernel_2/intersecting_arcs.cpp}
The following example shows how to use a functor of the kernel.
\ccIncludeExampleCode{Circular_kernel_2/functor_has_on.cpp}
\section{Design and Implementation History} \section{Design and Implementation History}
The first pieces of prototype code were comparisons of algebraic The first pieces of prototype code were comparisons of algebraic

5
Circular_kernel_2/examples/Circular_kernel_2/functor_has_on.cpp
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@ -10,6 +10,7 @@ int main()
{ {
int n = 0; int n = 0;
Circular_arc_2 c = Circular_arc_2(Point_2(10,0), Point_2(5,5), Point_2(0, 0)); Circular_arc_2 c = Circular_arc_2(Point_2(10,0), Point_2(5,5), Point_2(0, 0));
for(int i = 0; i <= 10; i++) { for(int i = 0; i <= 10; i++) {
for(int j = 0; j <= 10; j++) { for(int j = 0; j <= 10; j++) {
Point_2 p = Point_2(i, j); Point_2 p = Point_2(i, j);
@ -19,8 +20,8 @@ int main()
} }
} }
} }
std::cout << "There are " << n << " points in the [0,..,10]x[0,..,10] " << std::cout << "There are " << n << " points in the [0,..,10]x[0,..,10] "
"grid on the circular" << std::endl << "grid on the circular" << std::endl
<< " arc defined counterclockwisely by the points (0,0), (5,5), (10,0)" << " arc defined counterclockwisely by the points (0,0), (5,5), (10,0)"
<< std::endl << "See the points above." << std::endl; << std::endl << "See the points above." << std::endl;
return 0; return 0;

7
Circular_kernel_2/examples/Circular_kernel_2/intersecting_arcs.cpp
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@ -12,9 +12,11 @@ double prob_2() {
CGAL::Random_points_in_square_2<Point_2> g(1.0); CGAL::Random_points_in_square_2<Point_2> g(1.0);
double prob = 0.0; double prob = 0.0;
for (int i = 0; i < 10000; i++) { for (int i = 0; i < 10000; i++) {
Point_2 p1, p2, p3, p4, p5, p6; Point_2 p1, p2, p3, p4, p5, p6;
p1 = *g++; p2 = *g++; p3 = *g++; p1 = *g++; p2 = *g++; p3 = *g++;
p4 = *g++; p5 = *g++; p6 = *g++; p4 = *g++; p5 = *g++; p6 = *g++;
// the pi's are points inherited from the Cartesian kernel Point_2, so, // the pi's are points inherited from the Cartesian kernel Point_2, so,
// the orientation predicate can be called on them // the orientation predicate can be called on them
if(CGAL::orientation(p1, p2, p3) != CGAL::COUNTERCLOCKWISE) std::swap(p1, p3); if(CGAL::orientation(p1, p2, p3) != CGAL::COUNTERCLOCKWISE) std::swap(p1, p3);
@ -34,13 +36,14 @@ int main()
{ {
std::cout << "What is the probability that two arcs formed by" << std::endl; std::cout << "What is the probability that two arcs formed by" << std::endl;
std::cout << "three random counterclockwise-oriented points on" << std::endl; std::cout << "three random counterclockwise-oriented points on" << std::endl;
std::cout << "an unity square intersect? (wait a second please)" << std::endl; std::cout << "an unit square intersect? (wait a second please)" << std::endl;
std::cout << "The probability is: " << prob_2<Circular_arc_2>() << std::cout << "The probability is: " << prob_2<Circular_arc_2>() <<
std::endl << std::endl; std::endl << std::endl;
std::cout << "And what about the probability that two circles formed by" std::cout << "And what about the probability that two circles formed by"
<< std::endl; << std::endl;
std::cout << "three random counterclockwise-oriented points on" << std::endl; std::cout << "three random counterclockwise-oriented points on" << std::endl;
std::cout << "an unity square intersect? (wait a second please)" << std::endl; std::cout << "an unit square intersect? (wait a second please)" << std::endl;
std::cout << "The probability is: " << prob_2<Circle_2>() << std::endl; std::cout << "The probability is: " << prob_2<Circle_2>() << std::endl;
return 0; return 0;
}; };