Renamed pick_random_points -> pick_n_random_points

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/subsampling_and_spatialsearching@1516 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 45cc8cca9debf56dd0d21762e537649dd92d9a4d

1 files changed, 29 insertions, 0 deletions

diff --git a/src/Subsampling/example/example_pick_n_random_points.cpp b/src/Subsampling/example/example_pick_n_random_points.cpp
new file mode 100644
index 00000000..d2f063ba
--- /dev/null
+++ b/src/Subsampling/example/example_pick_n_random_points.cpp
@@ -0,0 +1,29 @@
+#include <gudhi/pick_n_random_points.h>
+
+#include <CGAL/Epick_d.h>
+#include <CGAL/Random.h>
+
+#include <array>
+#include <vector>
+#include <iterator>
+
+int main (void)
+{
+  typedef CGAL::Epick_d<CGAL::Dimension_tag<4> >   K;
+  typedef typename K::FT                           FT;
+  typedef typename K::Point_d                      Point_d;
+  
+  CGAL::Random rd;
+
+  std::vector<Point_d> points;
+  for (int i = 0 ; i < 500 ; ++i)
+    points.push_back(Point_d(std::array<FT,4>({rd.get_double(-1.,1),rd.get_double(-1.,1),rd.get_double(-1.,1),rd.get_double(-1.,1)})));
+
+  K k;
+  std::vector<Point_d> results;
+  Gudhi::subsampling::pick_n_random_points(points, 100, std::back_inserter(results));
+  std::cout << "Before sparsification: " << points.size() << " points.\n";
+  std::cout << "After  sparsification: " << results.size() << " points.\n";
+
+  return 0;
+}