From 3d82214289fb45a8d1298fda4e10f2b3701787f5 Mon Sep 17 00:00:00 2001
From: Yoann Audouin <yoann.audouin@edf.fr>
Date: Mon, 3 Oct 2022 16:15:33 +0200
Subject: [PATCH] Adding control of netgen log file

---
 src/NETGENPlugin/NETGENPlugin_Mesher.cxx      | 34 ++++++++++++-------
 src/NETGENPlugin/NETGENPlugin_Mesher.hxx      |  1 +
 .../NETGENPlugin_NETGEN_3D_SA.cxx             |  5 +++
 3 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/src/NETGENPlugin/NETGENPlugin_Mesher.cxx b/src/NETGENPlugin/NETGENPlugin_Mesher.cxx
index 615c970..44535f2 100644
--- a/src/NETGENPlugin/NETGENPlugin_Mesher.cxx
+++ b/src/NETGENPlugin/NETGENPlugin_Mesher.cxx
@@ -4437,18 +4437,7 @@ NETGENPlugin_NetgenLibWrapper::NETGENPlugin_NetgenLibWrapper():
   _ngcerr           = NULL;
   if ( !getenv( "KEEP_NETGEN_OUTPUT" ))
   {
-    // redirect all netgen output (mycout,myerr,cout) to _outputFileName
-    _outputFileName = getOutputFileName();
-    _ngcout         = netgen::mycout;
-    _ngcerr         = netgen::myerr;
-    netgen::mycout  = new ofstream ( _outputFileName.c_str() );
-    netgen::myerr   = netgen::mycout;
-    _coutBuffer     = std::cout.rdbuf();
-#ifdef _DEBUG_
-    std::cout << "NOTE: netgen output is redirected to file " << _outputFileName << std::endl;
-#else
-    std::cout.rdbuf( netgen::mycout->rdbuf() );
-#endif
+    setOutputFile(getOutputFileName());
   }
 
   setMesh( Ng_NewMesh() );
@@ -4569,6 +4558,27 @@ std::string NETGENPlugin_NetgenLibWrapper::getOutputFileName()
 
   return aGenericName.ToCString();
 }
+//================================================================================
+/*!
+ * \brief Set output file name for netgen log
+ */
+//================================================================================
+
+void NETGENPlugin_NetgenLibWrapper::setOutputFile(std::string outputfile)
+{
+  // redirect all netgen output (mycout,myerr,cout) to _outputFileName
+  _outputFileName = outputfile;
+  _ngcout         = netgen::mycout;
+  _ngcerr         = netgen::myerr;
+  netgen::mycout  = new ofstream ( _outputFileName.c_str() );
+  netgen::myerr   = netgen::mycout;
+  _coutBuffer     = std::cout.rdbuf();
+#ifdef _DEBUG_
+  std::cout << "NOTE: netgen output is redirected to file " << _outputFileName << std::endl;
+#else
+  std::cout.rdbuf( netgen::mycout->rdbuf() );
+#endif
+}
 
 //================================================================================
 /*!
diff --git a/src/NETGENPlugin/NETGENPlugin_Mesher.hxx b/src/NETGENPlugin/NETGENPlugin_Mesher.hxx
index 6d06f81..0a3f514 100644
--- a/src/NETGENPlugin/NETGENPlugin_Mesher.hxx
+++ b/src/NETGENPlugin/NETGENPlugin_Mesher.hxx
@@ -105,6 +105,7 @@ struct NETGENPLUGIN_EXPORT NETGENPlugin_NetgenLibWrapper
 
   static void RemoveTmpFiles();
   static int& instanceCounter();
+  void setOutputFile(std::string);
 
  private:
   std::string getOutputFileName();
diff --git a/src/NETGENPlugin/NETGENPlugin_NETGEN_3D_SA.cxx b/src/NETGENPlugin/NETGENPlugin_NETGEN_3D_SA.cxx
index bddb65c..6dfc100 100644
--- a/src/NETGENPlugin/NETGENPlugin_NETGEN_3D_SA.cxx
+++ b/src/NETGENPlugin/NETGENPlugin_NETGEN_3D_SA.cxx
@@ -202,6 +202,11 @@ bool NETGENPlugin_NETGEN_3D_SA::Compute(TopoDS_Shape &aShape, SMESH_Mesh& aMesh,
   int endWith   = netgen::MESHCONST_OPTVOLUME;
   int Netgen_NbOfNodes=0;
 
+  // Changing netgen log_file putting it next to new_element_file
+  fs::path netgen_log_file = fs::path(new_element_file).remove_filename() / fs::path("NETGEN.out");
+
+  ngLib.setOutputFile(netgen_log_file.string());
+
   NETGENPlugin_NETGEN_3D::computeFillNgMesh(aMesh, aShape, nodeVec, ngLib, helper, Netgen_NbOfNodes);
 
   netgen::OCCGeometry occgeo;
-- 
2.30.2