From 70326e3b8e61a40502e17b23bf9d9cf5bb91dbc9 Mon Sep 17 00:00:00 2001
From: Andreas Fabri <andreas.fabri@geometryfactory.com>
Date: Fri, 18 Oct 2024 13:55:55 +0100
Subject: [PATCH] Read file as given in argv and write output to same stem and
 extension

---
 .../examples/Polygon_mesh_processing/acvd_example.cpp        | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Polygon_mesh_processing/examples/Polygon_mesh_processing/acvd_example.cpp b/Polygon_mesh_processing/examples/Polygon_mesh_processing/acvd_example.cpp
index 4e5e537ce12..c5e589c662e 100644
--- a/Polygon_mesh_processing/examples/Polygon_mesh_processing/acvd_example.cpp
+++ b/Polygon_mesh_processing/examples/Polygon_mesh_processing/acvd_example.cpp
@@ -8,6 +8,7 @@
 #include <boost/graph/graph_traits.hpp>
 
 #include <iostream>
+#include <filesystem>
 
 namespace PMP = CGAL::Polygon_mesh_processing;
 
@@ -21,7 +22,7 @@ int main(int argc, char* argv[])
 {
   Surface_Mesh smesh;
   const std::string filename = (argc > 1) ?
-    CGAL::data_file_path(argv[1]) :
+    argv[1] :
     CGAL::data_file_path("meshes/fandisk.off");
 
   const int nb_clusters = (argc > 2) ? atoi(argv[2]) : 3000;
@@ -54,7 +55,7 @@ int main(int argc, char* argv[])
   std::cout << "Uniform QEM ACVD ...." << std::endl;
 
   auto acvd_mesh_qem = PMP::acvd_qem_remeshing(smesh, nb_clusters);
-  CGAL::IO::write_OFF("fandisk_acvd_qem_3000.off", acvd_mesh_qem);
+  CGAL::IO::write_polygon_mesh( std::filesystem::path(filename).stem().string()+"_acvd_qem_"+ std::to_string(nb_clusters) + std::filesystem::path(filename).extension().string(), acvd_mesh_qem);
 
   std::cout << "Completed" << std::endl;