From 0aaa28ad2d469d56876be704969ae1253f9b7303 Mon Sep 17 00:00:00 2001
From: mkr <mkr@opencascade.com>
Date: Tue, 5 Aug 2008 14:26:52 +0000
Subject: [PATCH] Additional fix for bug 0019898 : Bouding box gives strange
 values on a sphere.

---
 src/MeasureGUI/Makefile.am              |  1 +
 src/MeasureGUI/MeasureGUI_BndBoxDlg.cxx | 65 +++++++++++++++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/src/MeasureGUI/Makefile.am b/src/MeasureGUI/Makefile.am
index b49aa8aa6..c916457c7 100644
--- a/src/MeasureGUI/Makefile.am
+++ b/src/MeasureGUI/Makefile.am
@@ -119,6 +119,7 @@ libMeasureGUI_la_CPPFLAGS =		\
 	-I$(srcdir)/../OBJECT		\
 	-I$(srcdir)/../GEOMClient	\
 	-I$(srcdir)/../GEOMImpl		\
+	-I$(srcdir)/../GEOM             \
 	-I$(top_builddir)/src/DlgRef	\
 	-I$(top_builddir)/idl		\
 	-I$(top_builddir)/salome_adm/unix
diff --git a/src/MeasureGUI/MeasureGUI_BndBoxDlg.cxx b/src/MeasureGUI/MeasureGUI_BndBoxDlg.cxx
index b478e6158..561d58c31 100644
--- a/src/MeasureGUI/MeasureGUI_BndBoxDlg.cxx
+++ b/src/MeasureGUI/MeasureGUI_BndBoxDlg.cxx
@@ -28,7 +28,16 @@
 
 #include <GEOMBase.h>
 
+#include <GEOM_Function.hxx>
+#include <GEOM_Object.hxx>
+
 #include <BRepPrimAPI_MakeBox.hxx>
+#include <BRepAdaptor_Surface.hxx>
+#include <BRep_Tool.hxx>
+#include <BRep_TFace.hxx>
+#include <TopoDS.hxx>
+#include <TopoDS_Face.hxx>
+#include <TopExp_Explorer.hxx>
 
 #include <SUIT_Session.h>
 #include <SUIT_ResourceMgr.h>
@@ -154,8 +163,64 @@ bool MeasureGUI_BndBoxDlg::getParameters( double& theXmin, double& theXmax,
     return false;
   else {
     try {
+      Handle(Poly_Triangulation) Trtn = 0; 
+
+      Handle(GEOM_Object) anObject = GEOM_Engine::GetEngine()->GetObject(myObj->GetStudyID(), myObj->GetEntry());
+      if (!anObject.IsNull())
+      {
+	Handle(GEOM_Function) aRefShape = anObject->GetLastFunction();
+	if (!aRefShape.IsNull())
+	{
+	  TopoDS_Shape aShape = aRefShape->GetValue();
+	  if (!aShape.IsNull())
+	  {
+	    TopLoc_Location l;
+	    Handle(Poly_Triangulation) T;
+	    TopExp_Explorer ex;
+	    for (ex.Init(aShape,TopAbs_FACE); ex.More(); ex.Next()) {
+	      const TopoDS_Face& F = TopoDS::Face(ex.Current());
+	      
+	      BRepAdaptor_Surface surf(F);
+	      if (surf.GetType() == GeomAbs_Sphere)
+	      {
+		T = BRep_Tool::Triangulation(F, l);
+		if (!T.IsNull()) {
+		  Handle(Poly_Triangulation) NullTrtn = 0;
+		  (*((Handle(BRep_TFace)*)&F.TShape()))->Triangulation(NullTrtn);
+		  Trtn = T;
+		  break;
+		}
+	      }
+	      else
+		break;
+	    }
+	  }
+	}
+      }
+
       GEOM::GEOM_IMeasureOperations::_narrow( getOperation() )->GetBoundingBox(
         myObj, theXmin, theXmax, theYmin, theYmax, theZmin, theZmax );
+      
+      if (!Trtn.IsNull())
+      {
+	Handle(GEOM_Function) aRefShape = anObject->GetLastFunction();
+	if (!aRefShape.IsNull())
+	{
+	  TopoDS_Shape aShape = aRefShape->GetValue();
+	  if (!aShape.IsNull())
+	  {
+	    TopLoc_Location l;
+	    Handle(Poly_Triangulation) T;
+	    TopExp_Explorer ex;
+	    for (ex.Init(aShape,TopAbs_FACE); ex.More(); ex.Next()) {
+	      const TopoDS_Face& F = TopoDS::Face(ex.Current());
+	      (*((Handle(BRep_TFace)*)&F.TShape()))->Triangulation(Trtn);
+	      break;
+	    }
+	  }
+	}
+      }
+
     }
     catch( const SALOME::SALOME_Exception& e ) {
       SalomeApp_Tools::QtCatchCorbaException( e );
-- 
2.39.2