From 901ba4f298d9a24e4ca6f3cae8c223b7c51da7d8 Mon Sep 17 00:00:00 2001
From: jfa <jfa@opencascade.com>
Date: Fri, 10 Mar 2023 15:32:01 +0000
Subject: [PATCH] Porting Salome to OCCT 7.7.0

---
 src/STLPlugin/STLPlugin_ImportDriver.cxx | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/STLPlugin/STLPlugin_ImportDriver.cxx b/src/STLPlugin/STLPlugin_ImportDriver.cxx
index 319535473..b63c54600 100644
--- a/src/STLPlugin/STLPlugin_ImportDriver.cxx
+++ b/src/STLPlugin/STLPlugin_ImportDriver.cxx
@@ -24,6 +24,7 @@
 // KERNEL includes
 #include <utilities.h>
 #include <Basics_Utils.hxx>
+#include <Basics_OCCTVersion.hxx>
 
 // GEOM includes
 #include "GEOM_Function.hxx"
@@ -34,6 +35,7 @@
 #include <TopoDS_Shape.hxx>
 #include <TopoDS_Solid.hxx>
 #include <BRep_Tool.hxx>
+#include <BRepBuilderAPI_Sewing.hxx>
 #include <BRep_Builder.hxx>
 #include <TopoDS.hxx>
 #include <Precision.hxx>
@@ -70,7 +72,7 @@ Standard_Integer STLPlugin_ImportDriver::Execute(Handle(TFunction_Logbook)& log)
 
   TCollection_AsciiString aFileName = aData.GetFileName().ToCString();
 
-  MESSAGE( "Import STL to file " << aFileName );
+  MESSAGE( "Import STL from file " << aFileName );
 
   // Set "C" numeric locale to save numbers correctly
   Kernel_Utils::Localizer loc;
@@ -82,6 +84,16 @@ Standard_Integer STLPlugin_ImportDriver::Execute(Handle(TFunction_Logbook)& log)
 
   if( aShape.IsNull() ) return 0;
 
+#if OCC_VERSION_LARGE >= 0x07070000
+  BRepBuilderAPI_Sewing aSewingTool;
+  aSewingTool.Init(1.0e-06, Standard_True);
+  aSewingTool.Load(aShape);
+  aSewingTool.Perform();
+  TopoDS_Shape aSewedShape = aSewingTool.SewedShape();
+  if (!aSewedShape.IsNull())
+    aShape = aSewedShape;
+#endif
+
   // Fix the orientation of closed shell or solid.
   if( BRep_Tool::IsClosed( aShape ) ) {
     TopAbs_ShapeEnum aType = aShape.ShapeType();
-- 
2.39.2