Examples shall use only off files

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/off_files_only@1555 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 73833d163f3b76604a5111dc4374b635d60afade

2 files changed, 22 insertions, 20 deletions

diff --git a/src/Simplex_tree/example/CMakeLists.txt b/src/Simplex_tree/example/CMakeLists.txt
index 9314a805..c0c712fd 100644
--- a/src/Simplex_tree/example/CMakeLists.txt
+++ b/src/Simplex_tree/example/CMakeLists.txt
@@ -5,8 +5,10 @@ add_executable ( simplex_tree_from_cliques_of_graph simplex_tree_from_cliques_of
 if (TBB_FOUND)
   target_link_libraries(simplex_tree_from_cliques_of_graph ${TBB_LIBRARIES})
 endif()
-add_test(simplex_tree_from_cliques_of_graph_2 ${CMAKE_CURRENT_BINARY_DIR}/simplex_tree_from_cliques_of_graph ${CMAKE_SOURCE_DIR}/data/points/Klein_bottle_complex.txt 2)
-add_test(simplex_tree_from_cliques_of_graph_3 ${CMAKE_CURRENT_BINARY_DIR}/simplex_tree_from_cliques_of_graph ${CMAKE_SOURCE_DIR}/data/points/Klein_bottle_complex.txt 3)
+add_test(simplex_tree_from_cliques_of_graph_2 ${CMAKE_CURRENT_BINARY_DIR}/simplex_tree_from_cliques_of_graph
+         ${CMAKE_SOURCE_DIR}/data/cliques_of_graph/Klein_bottle_complex.cog 2)
+add_test(simplex_tree_from_cliques_of_graph_3 ${CMAKE_CURRENT_BINARY_DIR}/simplex_tree_from_cliques_of_graph
+         ${CMAKE_SOURCE_DIR}/data/cliques_of_graph/Klein_bottle_complex.cog 3)
 
 add_executable ( simple_simplex_tree simple_simplex_tree.cpp )
 if (TBB_FOUND)
@@ -20,10 +22,12 @@ add_test(mini_simplex_tree ${CMAKE_CURRENT_BINARY_DIR}/mini_simplex_tree)
 
 # An example with Simplex-tree using CGAL alpha_shapes_3
 if(GMP_FOUND AND CGAL_FOUND)
-  add_executable ( simplex_tree_from_alpha_shapes_3 simplex_tree_from_alpha_shapes_3.cpp )
-  target_link_libraries(simplex_tree_from_alpha_shapes_3 ${GMP_LIBRARIES} ${CGAL_LIBRARY} ${Boost_SYSTEM_LIBRARY})
+  add_executable ( alpha_shapes_3_simplex_tree_from_off_file example_alpha_shapes_3_simplex_tree_from_off_file.cpp )
+  target_link_libraries(alpha_shapes_3_simplex_tree_from_off_file ${GMP_LIBRARIES} ${CGAL_LIBRARY} ${Boost_SYSTEM_LIBRARY})
   if (TBB_FOUND)
-    target_link_libraries(simplex_tree_from_alpha_shapes_3 ${TBB_LIBRARIES})
+    target_link_libraries(alpha_shapes_3_simplex_tree_from_off_file ${TBB_LIBRARIES})
   endif()
-  add_test(simplex_tree_from_alpha_shapes_3 ${CMAKE_CURRENT_BINARY_DIR}/simplex_tree_from_alpha_shapes_3 ${CMAKE_SOURCE_DIR}/data/points/bunny_5000)
+  add_test(alpha_shapes_3_simplex_tree_from_off_file
+           ${CMAKE_CURRENT_BINARY_DIR}/alpha_shapes_3_simplex_tree_from_off_file
+           ${CMAKE_SOURCE_DIR}/data/points/bunny_5000.off)
 endif()
diff --git a/src/Simplex_tree/example/simplex_tree_from_alpha_shapes_3.cpp b/src/Simplex_tree/example/example_alpha_shapes_3_simplex_tree_from_off_file.cpp
index 49d358ab..ff2eebcb 100644
--- a/src/Simplex_tree/example/simplex_tree_from_alpha_shapes_3.cpp
+++ b/src/Simplex_tree/example/example_alpha_shapes_3_simplex_tree_from_off_file.cpp
@@ -20,8 +20,9 @@
  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <gudhi/graph_simplicial_complex.h>
 #include <gudhi/Simplex_tree.h>
+#include <gudhi/Points_3D_off_io.h>
+
 #include <boost/variant.hpp>
 
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
@@ -118,24 +119,21 @@ int main(int argc, char * const argv[]) {
   // program args management
   if (argc != 2) {
     std::cerr << "Usage: " << argv[0]
-        << " path_to_file_graph \n";
+        << " path_to_off_file \n";
     return 0;
   }
 
   // Read points from file
-  std::string filegraph = argv[1];
-  std::list<Point> lp;
-  std::ifstream is(filegraph.c_str());
-  int n;
-  is >> n;
-#ifdef DEBUG_TRACES
-  std::cout << "Reading " << n << " points " << std::endl;
-#endif  // DEBUG_TRACES
-  Point p;
-  for (; n > 0; n--) {
-    is >> p;
-    lp.push_back(p);
+  std::string offInputFile(argv[1]);
+  // Read the OFF file (input file name given as parameter) and triangulate points
+  Gudhi::Points_3D_off_reader<Point> off_reader(offInputFile);
+  // Check the read operation was correct
+  if (!off_reader.is_valid()) {
+    std::cerr << "Unable to read file " << argv[1] << std::endl;
+    return 0;
   }
+  // Retrieve the triangulation
+  std::vector<Point> lp = off_reader.get_point_cloud();
 
   // alpha shape construction from points. CGAL has a strange behavior in REGULARIZED mode.
   Alpha_shape_3 as(lp.begin(), lp.end(), 0, Alpha_shape_3::GENERAL);