From 6c10d4b11aef729da44027a759c8e9dbe0ea4103 Mon Sep 17 00:00:00 2001
From: ika <irina.kochetkova@opencascade.com>
Date: Thu, 6 Oct 2022 12:39:03 +0300
Subject: [PATCH] 0030256: ACIS Import - crash while importing SAT file on
 constructing a pipe

Fix for thin section with both first and last parameters located in one segment.
---
 src/GeomFill/GeomFill_SectionPlacement.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/GeomFill/GeomFill_SectionPlacement.cxx b/src/GeomFill/GeomFill_SectionPlacement.cxx
index a2616b4b1d..8d39b1c3cd 100644
--- a/src/GeomFill/GeomFill_SectionPlacement.cxx
+++ b/src/GeomFill/GeomFill_SectionPlacement.cxx
@@ -276,6 +276,8 @@ GeomFill_SectionPlacement(const Handle(GeomFill_LocationLaw)& L,
 	      
 	      Standard_Integer NbLocalPnts = 10;
 	      Standard_Integer NbPnts = (NbKnots-1) * NbLocalPnts;
+	      if (NbPnts < 0)
+	        NbPnts = 0;
 	      if (I1 != I2)
 		NbPnts += NbLocalPnts;
 	      if (I3 != I4 && first < BC->Knot(I3))