From 945cb97ca33c0a3644f0ded750cc11db05195a57 Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Mon, 17 Jul 2017 10:39:20 +0300
Subject: [PATCH] Select direction of symbols distribution

---
 src/SketcherPrs/SketcherPrs_PositionMgr.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/SketcherPrs/SketcherPrs_PositionMgr.cpp b/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
index 1dbe75116..51771dcfa 100644
--- a/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
+++ b/src/SketcherPrs/SketcherPrs_PositionMgr.cpp
@@ -100,7 +100,11 @@ gp_Vec getVector(ObjectPtr theShape, GeomDirPtr theDir, gp_Pnt theP)
       GeomPointPtr aPnt1 = aCurve->getPoint((aMidParam + aCurve->endParam()) / 2.);
       GeomPointPtr aPnt2 = aCurve->getPoint((aMidParam + aCurve->startParam()) / 2.);
 
-      aVec = gp_Vec(aPnt1->impl<gp_Pnt>(), aPnt2->impl<gp_Pnt>());
+      gp_Pnt aPn2 = aPnt2->impl<gp_Pnt>();
+      if (aPn2.IsEqual(theP, Precision::Confusion()))
+        aVec = gp_Vec(aPn2, aPnt1->impl<gp_Pnt>());
+      else
+        aVec = gp_Vec(aPnt1->impl<gp_Pnt>(), aPn2);
     }
   } else {
     aVec = gp_Vec(theDir->impl<gp_Dir>());
-- 
2.39.2