X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSketchPlugin%2FSketchPlugin_MacroEllipse.cpp;h=630b735cef0f956daff11f63a1b0b21db302aeed;hb=2231d4ba3833486bfb36c85220e0b2ab9c3f8849;hp=2cf1cbc7f011bcf9ff4c7a6e314d46c57f395705;hpb=584f97832c77adf0c9df154b2f3eb1835bd3ce9e;p=modules%2Fshaper.git

diff --git a/src/SketchPlugin/SketchPlugin_MacroEllipse.cpp b/src/SketchPlugin/SketchPlugin_MacroEllipse.cpp
index 2cf1cbc7f..630b735ce 100644
--- a/src/SketchPlugin/SketchPlugin_MacroEllipse.cpp
+++ b/src/SketchPlugin/SketchPlugin_MacroEllipse.cpp
@@ -44,6 +44,7 @@
 #include <GeomAlgoAPI_EdgeBuilder.h>
 #include <GeomAlgoAPI_PointBuilder.h>
 
+static const double TOLERANCE = 1.e-7;
 
 SketchPlugin_MacroEllipse::SketchPlugin_MacroEllipse()
 : SketchPlugin_SketchEntity(),
@@ -169,6 +170,9 @@ void SketchPlugin_MacroEllipse::attributeChanged(const std::string& theID)
       anEllipsePoints[0]->setY(0.5 * (anEllipsePoints[0]->y() + anEllipsePoints[1]->y()));
     }
 
+    if (anEllipsePoints[0]->distance(anEllipsePoints[1]) < 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(),