diff --git a/src/container/vcontainer.cpp b/src/container/vcontainer.cpp
index c83d2f3fe..9cc2f9419 100644
--- a/src/container/vcontainer.cpp
+++ b/src/container/vcontainer.cpp
@@ -223,6 +223,7 @@ QVector<QPointF> VContainer::CorrectEquidistantPoints(const QVector<QPointF> &po
         qWarning()<<"Only three points.";
         return points;
     }
+    //Clear equivalent points
     for(qint32 i = 0; i <points.size(); ++i)
     {
         if(i == points.size()-1)
@@ -240,6 +241,22 @@ QVector<QPointF> VContainer::CorrectEquidistantPoints(const QVector<QPointF> &po
             correctPoints.append(points.at(i));
         }
     }
+    if(correctPoints.size()<3)
+    {
+        return correctPoints;
+    }
+    //Remove point on line
+    QPointF point;
+    for(qint32 i = 1; i <correctPoints.size()-1; ++i)
+    {
+        QLineF l1(correctPoints[i-1], correctPoints[i]);
+        QLineF l2(correctPoints[i], correctPoints[i+1]);
+        QLineF::IntersectType intersect = l1.intersect(l2, &point);
+        if (intersect == QLineF::NoIntersection)
+        {
+            correctPoints.remove(i);
+        }
+    }
     return correctPoints;
 }
 
diff --git a/src/geometry/varc.cpp b/src/geometry/varc.cpp
index 8276bc95e..cdb83f0f9 100644
--- a/src/geometry/varc.cpp
+++ b/src/geometry/varc.cpp
@@ -120,13 +120,21 @@ QVector<QPointF> VArc::GetPoints() const
 {
     QVector<QPointF> points;
     qreal i = 0;
-    qreal angle = qRound(AngleArc());
+    qreal angle = AngleArc();
+    qint32 k = static_cast<qint32>(angle);
+    qreal s = angle/(k/4);
     do
     {
         QLineF line(center.toQPointF(), GetP1());
         line.setAngle(line.angle()+i);
         points.append(line.p2());
-        i = i + 0.1;
+        i = i + s;
+        if(i > angle)
+        {
+            QLineF line(center.toQPointF(), GetP1());
+            line.setAngle(line.angle()+angle);
+            points.append(line.p2());
+        }
     }
     while(i <= angle);
     return points;
diff --git a/src/tools/vtooldetail.cpp b/src/tools/vtooldetail.cpp
index 97a457680..72d6b4de4 100644
--- a/src/tools/vtooldetail.cpp
+++ b/src/tools/vtooldetail.cpp
@@ -247,8 +247,7 @@ QVariant VToolDetail::itemChange(QGraphicsItem::GraphicsItemChange change, const
         {
             domElement.setAttribute(AttrMx, QString().setNum(toMM(newPos.x())));
             domElement.setAttribute(AttrMy, QString().setNum(toMM(newPos.y())));
-            //I don't now why but signal does not work.
-            doc->FullUpdateTree();
+            doc->haveLiteChange();
         }
     }
 
diff --git a/src/tools/vtooluniondetails.cpp b/src/tools/vtooluniondetails.cpp
index e3c3c1630..c81edeb96 100644
--- a/src/tools/vtooluniondetails.cpp
+++ b/src/tools/vtooluniondetails.cpp
@@ -105,6 +105,7 @@ void VToolUnionDetails::AddToNewDetail(QObject *tool, VDomDocument *doc, VContai
 
                 QLineF l1(center->toQPointF(), p1.toQPointF());
                 QLineF l2(center->toQPointF(), p2.toQPointF());
+                center->setMode(Draw::Modeling);
                 qint64 idCenter = data->AddGObject(center);
                 Q_UNUSED(idCenter);
                 VArc *arc1 = new VArc(*center, arc->GetRadius(), arc->GetFormulaRadius(),
@@ -112,12 +113,12 @@ void VToolUnionDetails::AddToNewDetail(QObject *tool, VDomDocument *doc, VContai
                                  QString().setNum(l2.angle()));
                 Q_ASSERT(arc1 != 0);
                 arc1->setMode(Draw::Modeling);
-                id = data->AddGObject(arc1);
+                idObject = data->AddGObject(arc1);
 
                 VArc *arc2 = new VArc(*arc1);
                 Q_ASSERT(arc2 != 0);
                 arc2->setMode(Draw::Modeling);
-                idObject = data->AddGObject(arc2);
+                id = data->AddGObject(arc2);
 
                 VNodeArc::Create(doc, data, id, idObject, Document::FullParse, Tool::FromGui, idTool, tool);
             }
@@ -242,7 +243,7 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
     {
         case (Tool::NodePoint):
         {
-            if (qFuzzyCompare(dx+1, 1) == false && qFuzzyCompare(dy+1, 1) == false && pRotate != 0)
+            if (qFuzzyCompare(dx+1, 1) == false || qFuzzyCompare(dy+1, 1) == false || pRotate != 0)
             {
                 VPointF *point = new VPointF(*data->GeometricObject<const VPointF *>(det.at(i).getId()));
                 Q_ASSERT(point != 0);
@@ -257,7 +258,7 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
         break;
         case (Tool::NodeArc):
         {
-            if (qFuzzyCompare(dx+1, 1) == false && qFuzzyCompare(dy+1, 1) == false && pRotate != 0)
+            if (qFuzzyCompare(dx+1, 1) == false || qFuzzyCompare(dy+1, 1) == false || pRotate != 0)
             {
                 const VArc *arc = data->GeometricObject<const VArc *>(det.at(i).getId());
                 VPointF p1 = VPointF(arc->GetP1());
@@ -272,6 +273,7 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
                 QLineF l1(center->toQPointF(), p1.toQPointF());
                 QLineF l2(center->toQPointF(), p2.toQPointF());
                 ++idCount;
+                center->setMode(Draw::Modeling);
                 data->UpdateGObject(idDetail+idCount, center);
                 VArc *arc1 = new VArc(*center, arc->GetRadius(), arc->GetFormulaRadius(), l1.angle(),
                                      QString().setNum(l1.angle()), l2.angle(), QString().setNum(l2.angle()));
@@ -286,7 +288,7 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
         break;
         case (Tool::NodeSpline):
         {
-            if (qFuzzyCompare(dx+1, 1) == false && qFuzzyCompare(dy+1, 1) == false && pRotate != 0)
+            if (qFuzzyCompare(dx+1, 1) == false || qFuzzyCompare(dy+1, 1) == false || pRotate != 0)
             {
                 const VSpline *spline = data->GeometricObject<const VSpline *>(det.at(i).getId());
 
@@ -320,7 +322,7 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
         break;
         case (Tool::NodeSplinePath):
         {
-            if (qFuzzyCompare(dx+1, 1) == false && qFuzzyCompare(dy+1, 1) == false && pRotate != 0)
+            if (qFuzzyCompare(dx+1, 1) == false || qFuzzyCompare(dy+1, 1) == false || pRotate != 0)
             {
                 VSplinePath *path = new VSplinePath();
                 Q_ASSERT(path != 0);
diff --git a/src/xml/vdomdocument.cpp b/src/xml/vdomdocument.cpp
index 631402833..395cdbb87 100644
--- a/src/xml/vdomdocument.cpp
+++ b/src/xml/vdomdocument.cpp
@@ -1314,7 +1314,6 @@ void VDomDocument::FullUpdateTree()
     Q_ASSERT(scene != 0);
     try
     {
-        data->ClearGObjects();
         Parse(Document::LiteParse, scene, scene);
     }
     catch (const std::bad_alloc &)