From 77f03a4d00adc1ae5c8ff0a0cb8f50a04d739f8d Mon Sep 17 00:00:00 2001
From: jfa <jfa@opencascade.com>
Date: Tue, 18 Mar 2008 10:22:32 +0000
Subject: [PATCH] NPAL19230: Fix shape after RemoveExtraEdges, because
 sometimes it is not valid.

---
 src/GEOMImpl/GEOMImpl_BlockDriver.cxx | 28 +++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/src/GEOMImpl/GEOMImpl_BlockDriver.cxx b/src/GEOMImpl/GEOMImpl_BlockDriver.cxx
index 2efdd7ca2..873b0a751 100644
--- a/src/GEOMImpl/GEOMImpl_BlockDriver.cxx
+++ b/src/GEOMImpl/GEOMImpl_BlockDriver.cxx
@@ -34,7 +34,7 @@
 #include <GEOM_Function.hxx>
 
 #include <ShHealOper_Sewing.hxx>
-//#include <NMTAlgo_Splitter1.hxx>
+#include <ShHealOper_ShapeProcess.hxx>
 #include <GEOMAlgo_Gluer.hxx>
 #include <BlockFix_BlockFixAPI.hxx>
 
@@ -53,6 +53,7 @@
 #include <BRepBuilderAPI_MakeWire.hxx>
 #include <BRepBuilderAPI_MakePolygon.hxx>
 #include <BRepBuilderAPI_Transform.hxx>
+#include <BRepCheck_Analyzer.hxx>
 #include <BRepClass_FaceClassifier.hxx>
 #include <BRepClass3d_SolidClassifier.hxx>
 #include <BRepExtrema_ExtPF.hxx>
@@ -507,17 +508,28 @@ Standard_Integer GEOMImpl_BlockDriver::Execute(TFunction_Logbook& log) const
       aTool.SetShape(aBlockOrComp);
       aTool.Perform();
 
-      if (aType == BLOCK_REMOVE_EXTRA) {
+      TopoDS_Shape aFixedExtra = aTool.Shape();
+
+      // Repair result
+      BRepCheck_Analyzer ana (aFixedExtra, false);
+      if (!ana.IsValid()) {
+        TopoDS_Shape aFixed;
+        ShHealOper_ShapeProcess aHealer;
+        aHealer.Perform(aFixedExtra, aFixed);
+        if (aHealer.isDone())
+          aFixedExtra = aFixed;
+      }
+
+      if (aType == BLOCK_REMOVE_EXTRA)
+      {
+        aShape = aFixedExtra;
 
-        aShape = aTool.Shape();
         if (aShape == aBlockOrComp) {
           MESSAGE("No modifications have been done");
         }
-
-      } else { // aType == BLOCK_COMPOUND_IMPROVE
-
-        TopoDS_Shape aFixedExtra = aTool.Shape();
-
+      }
+      else // aType == BLOCK_COMPOUND_IMPROVE
+      {
         // 2. Separate non-blocks
         TopTools_ListOfShape BLO; // All blocks from the given compound
         TopTools_ListOfShape NOT; // Not blocks