From: azv <azv@opencascade.com>
Date: Tue, 30 Oct 2018 10:37:10 +0000 (+0300)
Subject: Issue #2720: Fatal error when create arc
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=528218f35012ad71659e72ee6c8e2e644f458eba;p=modules%2Fshaper.git

Issue #2720: Fatal error when create arc

Avoid crash on creation of arc with equal center and start points.
---

diff --git a/src/SketchPlugin/SketchPlugin_MacroArc.cpp b/src/SketchPlugin/SketchPlugin_MacroArc.cpp
index b6a09bde6..8860e4f32 100644
--- a/src/SketchPlugin/SketchPlugin_MacroArc.cpp
+++ b/src/SketchPlugin/SketchPlugin_MacroArc.cpp
@@ -491,6 +491,9 @@ void SketchPlugin_MacroArc::fillByCenterAndTwoPassed()
     return;
 
   GeomAPI_Circ2d aCircleForArc(myCenter, myStart);
+  // avoid degerated arc, when the center and the start points are equal
+  if (!aCircleForArc.implPtr<void*>())
+    return;
 
   bool aWasBlocked = data()->blockSendAttributeUpdated(true);
   // check the end point is referred to another feature