1 files changed, 38 insertions, 0 deletions
diff --git a/src/Bottleneck_distance/utilities/bottleneck_distance.cpp b/src/Bottleneck_distance/utilities/bottleneck_distance.cpp
new file mode 100644
index 00000000..d88a8a0b
--- /dev/null
+++ b/src/Bottleneck_distance/utilities/bottleneck_distance.cpp
@@ -0,0 +1,38 @@
+/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ *    Authors:       Francois Godi, small modifications by Pawel Dlotko
+ *
+ *    Copyright (C) 2015 Inria
+ *
+ *    Modification(s):
+ *      - YYYY/MM Author: Description of the modification
+ */
+
+#include <gudhi/Bottleneck.h>
+#include <gudhi/reader_utils.h>
+#include <iostream>
+#include <vector>
+#include <utility>  // for pair
+#include <string>
+#include <limits>  // for numeric_limits
+
+int main(int argc, char** argv) {
+  if (argc < 3) {
+    std::cout << "To run this program please provide as an input two files with persistence diagrams. Each file" <<
+        " should contain a birth-death pair per line. Third, optional parameter is an error bound on the bottleneck" <<
+        " distance (set by default to the smallest positive double value). If you set the error bound to 0, be" <<
+        " aware this version is exact but expensive. The program will now terminate \n";
+    return -1;
+  }
+  std::vector<std::pair<double, double>> diag1 = Gudhi::read_persistence_intervals_in_dimension(argv[1]);
+  std::vector<std::pair<double, double>> diag2 = Gudhi::read_persistence_intervals_in_dimension(argv[2]);
+
+  double tolerance = std::numeric_limits<double>::min();
+  if (argc == 4) {
+    tolerance = atof(argv[3]);
+  }
+  double b = Gudhi::persistence_diagram::bottleneck_distance(diag1, diag2, tolerance);
+  std::cout << "The distance between the diagrams is : " << b << ". The tolerance is : " << tolerance << std::endl;
+
+  return 0;
+}