diff --git a/src/app/container/container.pri b/src/app/container/container.pri
index 3e8dd7bfe..ca4244197 100644
--- a/src/app/container/container.pri
+++ b/src/app/container/container.pri
@@ -27,4 +27,5 @@ HEADERS += \
     container/vinternalvariable_p.h \
     container/vvariable_p.h \
     container/vincrement_p.h \
-    container/vcurvelength_p.h
+    container/vcurvelength_p.h \
+    container/vlineangle_p.h
diff --git a/src/app/container/vlineangle.cpp b/src/app/container/vlineangle.cpp
index c05fcea6d..10a93f306 100644
--- a/src/app/container/vlineangle.cpp
+++ b/src/app/container/vlineangle.cpp
@@ -27,6 +27,7 @@
  *************************************************************************/
 
 #include "vlineangle.h"
+#include "vlineangle_p.h"
 #include "../geometry/vpointf.h"
 #include "../widgets/vapplication.h"
 
@@ -34,14 +35,14 @@
 
 //---------------------------------------------------------------------------------------------------------------------
 VLineAngle::VLineAngle()
-    :VInternalVariable(), p1Id(NULL_ID), p2Id(NULL_ID)
+    :VInternalVariable(), d(new VLineAngleData)
 {
     SetType(VarType::LineAngle);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 VLineAngle::VLineAngle(const VPointF *p1, const quint32 &p1Id, const VPointF *p2, const quint32 &p2Id)
-    :VInternalVariable(), p1Id(p1Id), p2Id(p2Id)
+    :VInternalVariable(), d(new VLineAngleData(p1Id, p2Id))
 {
     SetType(VarType::LineAngle);
 
@@ -54,7 +55,7 @@ VLineAngle::VLineAngle(const VPointF *p1, const quint32 &p1Id, const VPointF *p2
 
 //---------------------------------------------------------------------------------------------------------------------
 VLineAngle::VLineAngle(const VLineAngle &var)
-    :VInternalVariable(var), p1Id(var.GetP1Id()), p2Id(var.GetP2Id())
+    :VInternalVariable(var), d(var.d)
 {}
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -65,8 +66,7 @@ VLineAngle &VLineAngle::operator=(const VLineAngle &var)
         return *this;
     }
     VInternalVariable::operator=(var);
-    this->p1Id = var.GetP1Id();
-    this->p2Id = var.GetP2Id();
+    d = var.d;
     return *this;
 }
 
@@ -77,7 +77,7 @@ VLineAngle::~VLineAngle()
 //---------------------------------------------------------------------------------------------------------------------
 bool VLineAngle::Filter(quint32 id)
 {
-    return id == p1Id || id == p2Id;
+    return id == d->p1Id || id == d->p2Id;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -87,3 +87,15 @@ void VLineAngle::SetValue(const VPointF *p1, const VPointF *p2)
     SCASSERT(p2 != nullptr);
     VInternalVariable::SetValue(QLineF(p1->toQPointF(), p2->toQPointF()).angle());
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+quint32 VLineAngle::GetP1Id() const
+{
+    return d->p1Id;
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+quint32 VLineAngle::GetP2Id() const
+{
+    return d->p2Id;
+}
diff --git a/src/app/container/vlineangle.h b/src/app/container/vlineangle.h
index 297f16a96..df93a48f6 100644
--- a/src/app/container/vlineangle.h
+++ b/src/app/container/vlineangle.h
@@ -32,6 +32,7 @@
 #include "vinternalvariable.h"
 
 class VPointF;
+class VLineAngleData;
 
 class VLineAngle :public VInternalVariable
 {
@@ -47,20 +48,7 @@ public:
     quint32      GetP1Id() const;
     quint32      GetP2Id() const;
 private:
-    quint32 p1Id;
-    quint32 p2Id;
+    QSharedDataPointer<VLineAngleData> d;
 };
 
-//---------------------------------------------------------------------------------------------------------------------
-inline quint32 VLineAngle::GetP1Id() const
-{
-    return p1Id;
-}
-
-//---------------------------------------------------------------------------------------------------------------------
-inline quint32 VLineAngle::GetP2Id() const
-{
-    return p2Id;
-}
-
 #endif // VLINEANGLE_H
diff --git a/src/app/container/vlineangle_p.h b/src/app/container/vlineangle_p.h
new file mode 100644
index 000000000..7345d3b7d
--- /dev/null
+++ b/src/app/container/vlineangle_p.h
@@ -0,0 +1,58 @@
+/************************************************************************
+ **
+ **  @file   vlineangle_p.h
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   20 8, 2014
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentine project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2014 Valentina project
+ **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
+ **
+ **  Valentina is free software: you can redistribute it and/or modify
+ **  it under the terms of the GNU General Public License as published by
+ **  the Free Software Foundation, either version 3 of the License, or
+ **  (at your option) any later version.
+ **
+ **  Valentina is distributed in the hope that it will be useful,
+ **  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ **  GNU General Public License for more details.
+ **
+ **  You should have received a copy of the GNU General Public License
+ **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+
+#ifndef VLINEANGLE_P_H
+#define VLINEANGLE_P_H
+
+#include <QSharedData>
+#include "../options.h"
+
+class VLineAngleData : public QSharedData
+{
+public:
+
+    VLineAngleData()
+        :p1Id(NULL_ID), p2Id(NULL_ID)
+    {}
+
+    VLineAngleData(const quint32 &p1Id, const quint32 &p2Id)
+        :p1Id(p1Id), p2Id(p2Id)
+    {}
+
+    VLineAngleData(const VLineAngleData &var)
+        :QSharedData(var), p1Id(var.p1Id), p2Id(var.p2Id)
+    {}
+
+    virtual  ~VLineAngleData() {}
+
+    quint32 p1Id;
+    quint32 p2Id;
+};
+
+
+#endif // VLINEANGLE_P_H