X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSketchPlugin%2FSketchPlugin_MacroEllipticArc.cpp;h=192884dbfb0a7c37d1abe43c22a77eb0f4220ac8;hb=cdbbde4803e9c320204d537d22af4ac7ef024962;hp=bd8290c0c5db33c4d749befe5146c0bfb09049a9;hpb=77d6e03555d0d46232e09ace4178f66f8c9b40ee;p=modules%2Fshaper.git

diff --git a/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp b/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
index bd8290c0c..192884dbf 100644
--- a/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
+++ b/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2019  CEA/DEN, EDF R&D
+// Copyright (C) 2017-2021  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
@@ -42,6 +42,7 @@
 #include <GeomAlgoAPI_PointBuilder.h>
 
 
+const double TOLERANCE = 1.e-7;
 const double paramTolerance = 1.e-4;
 const double PI = 3.141592653589793238463;
 
@@ -93,7 +94,7 @@ void SketchPlugin_MacroEllipticArc::execute()
   Events_Loop::loop()->send(aMessage);
 }
 
-void SketchPlugin_MacroEllipticArc::attributeChanged(const std::string& theID)
+void SketchPlugin_MacroEllipticArc::attributeChanged(const std::string& /*theID*/)
 {
   static const int NB_POINTS = 4;
   std::string aPointAttrName[NB_POINTS] = { CENTER_ID(),
@@ -132,6 +133,9 @@ void SketchPlugin_MacroEllipticArc::attributeChanged(const std::string& theID)
   myStartPnt  = anEllipsePoints[2];
   myEndPnt    = anEllipsePoints[3];
 
+  if (myCenter->distance(myMajorAxis) < TOLERANCE)
+    return; // ellipse is not valid
+
   std::shared_ptr<GeomAPI_Ellipse2d> anEllipse;
   if (aNbInitialized == 2) {
     GeomDir2dPtr aXDir(new GeomAPI_Dir2d(anEllipsePoints[1]->x() - anEllipsePoints[0]->x(),
@@ -360,7 +364,7 @@ GeomShapePtr SketchPlugin_MacroEllipticArc::getArcShape()
     return GeomShapePtr();
 
   SketchPlugin_Sketch* aSketch = sketch();
-  if (!aSketch)
+  if (!aSketch || myCenter->distance(myMajorAxis) < 1.e-7)
     return GeomShapePtr();
 
   GeomPointPtr aCenter(aSketch->to3D(myCenter->x(), myCenter->y()));