X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSketchPlugin%2FSketchPlugin_MacroEllipticArc.cpp;h=86f469d0bf6fa67132ce6e1a4a15b5382d1de651;hb=645e2cb70c0e40290725f28fdc5fec8a93338d28;hp=bd8290c0c5db33c4d749befe5146c0bfb09049a9;hpb=59d7c196ce4f5ed43cb550ee5caecd68676abfb3;p=modules%2Fshaper.git

diff --git a/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp b/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
index bd8290c0c..86f469d0b 100644
--- a/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
+++ b/src/SketchPlugin/SketchPlugin_MacroEllipticArc.cpp
@@ -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;
 
@@ -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()));