Changed the examples in witness complex package

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/subsampling_and_spatialsearching@1239 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 1ab3b8e4b99d52e749fe5ec67d41283be4258e81

2 files changed, 8 insertions, 4 deletions

diff --git a/src/Witness_complex/example/witness_complex_from_file.cpp b/src/Witness_complex/example/witness_complex_from_file.cpp
index 53207ad2..fbc3cf1d 100644
--- a/src/Witness_complex/example/witness_complex_from_file.cpp
+++ b/src/Witness_complex/example/witness_complex_from_file.cpp
@@ -25,6 +25,7 @@
 
 #include <gudhi/Simplex_tree.h>
 #include <gudhi/Witness_complex.h>
+#include <gudhi/Construct_closest_landmark_table.h>
 #include <gudhi/Landmark_choice_by_random_point.h>
 #include <gudhi/reader_utils.h>
 
@@ -78,7 +79,7 @@ int main(int argc, char * const argv[]) {
   Gudhi::Simplex_tree<> simplex_tree;
 
   // Read the point file
-  Point_Vector point_vector;
+  Point_Vector point_vector, landmarks;
   read_points_cust(file_name, point_vector);
   std::cout << "Successfully read " << point_vector.size() << " points.\n";
   std::cout << "Ambient dimension is " << point_vector[0].size() << ".\n";
@@ -86,7 +87,8 @@ int main(int argc, char * const argv[]) {
   // Choose landmarks
   start = clock();
   std::vector<std::vector< int > > knn;
-  Gudhi::witness_complex::landmark_choice_by_random_point(point_vector, nbL, knn);
+  Gudhi::landmark_choice_by_random_point(point_vector, 100, std::back_inserter(landmarks));
+  Gudhi::witness_complex::construct_closest_landmark_table(point_vector, landmarks, knn);
   end = clock();
   std::cout << "Landmark choice for " << nbL << " landmarks took "
       << static_cast<double>(end - start) / CLOCKS_PER_SEC << " s. \n";
diff --git a/src/Witness_complex/example/witness_complex_sphere.cpp b/src/Witness_complex/example/witness_complex_sphere.cpp
index b26c9f36..9cf2f119 100644
--- a/src/Witness_complex/example/witness_complex_sphere.cpp
+++ b/src/Witness_complex/example/witness_complex_sphere.cpp
@@ -27,6 +27,7 @@
 
 #include <gudhi/Simplex_tree.h>
 #include <gudhi/Witness_complex.h>
+#include <gudhi/Construct_closest_landmark_table.h>
 #include <gudhi/Landmark_choice_by_random_point.h>
 #include <gudhi/reader_utils.h>
 
@@ -67,7 +68,7 @@ int main(int argc, char * const argv[]) {
 
   // Read the point file
   for (int nbP = 500; nbP < 10000; nbP += 500) {
-    Point_Vector point_vector;
+    Point_Vector point_vector, landmarks;
     generate_points_sphere(point_vector, nbP, 4);
     std::cout << "Successfully generated " << point_vector.size() << " points.\n";
     std::cout << "Ambient dimension is " << point_vector[0].size() << ".\n";
@@ -75,7 +76,8 @@ int main(int argc, char * const argv[]) {
     // Choose landmarks
     start = clock();
     std::vector<std::vector< int > > knn;
-    Gudhi::witness_complex::landmark_choice_by_random_point(point_vector, number_of_landmarks, knn);
+    Gudhi::landmark_choice_by_random_point(point_vector, 100, std::back_inserter(landmarks));
+    Gudhi::witness_complex::construct_closest_landmark_table(point_vector, landmarks, knn);
 
     // Compute witness complex
     Gudhi::witness_complex::witness_complex(knn, number_of_landmarks, point_vector[0].size(), simplex_tree);