From ce101cacbfc48038d32ccf19bb2c3930bb35f81a Mon Sep 17 00:00:00 2001
From: emv <emv@opencascade.com>
Date: Fri, 22 Mar 2013 14:19:48 +0400
Subject: [PATCH] 0023849: BOP regression (1) - BRepAlgoAPI_Common. Fix for the
 bug. Set the lower bound for the refined tolerance value in 2d classification
 algorithm.

---
 src/BRepClass/BRepClass_Intersector.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/BRepClass/BRepClass_Intersector.cxx b/src/BRepClass/BRepClass_Intersector.cxx
index 9ddbe6bf5c..5e14adb51b 100755
--- a/src/BRepClass/BRepClass_Intersector.cxx
+++ b/src/BRepClass/BRepClass_Intersector.cxx
@@ -209,6 +209,10 @@ void RefineTolerance(const TopoDS_Face& aF,
       aTolX=-aTolX;
     }
     //
+    if (aTolX < Precision::Confusion()) {
+      aTolX = Precision::Confusion();
+    }
+    //
     if (aTolX<aTolZ) {
       aTolZ=aTolX;
     }