diff --git a/dust3d.pro b/dust3d.pro
index e8a86142..c43c644a 100644
--- a/dust3d.pro
+++ b/dust3d.pro
@@ -24,6 +24,9 @@ HEADERS += src/skeletoneditedgeitem.h
 SOURCES += src/skeletontomesh.cpp
 HEADERS += src/skeletontomesh.h
 
+SOURCES += src/theme.cpp
+HEADERS += src/theme.h
+
 SOURCES += src/mesh.cpp
 HEADERS += src/mesh.h
 
diff --git a/src/skeletoneditedgeitem.cpp b/src/skeletoneditedgeitem.cpp
index 6a6423d1..5a572a2f 100644
--- a/src/skeletoneditedgeitem.cpp
+++ b/src/skeletoneditedgeitem.cpp
@@ -1,5 +1,6 @@
 #include <QPen>
 #include "skeletoneditedgeitem.h"
+#include "theme.h"
 
 SkeletonEditEdgeItem::SkeletonEditEdgeItem(QGraphicsItem *parent) :
     QGraphicsLineItem(parent),
@@ -7,8 +8,8 @@ SkeletonEditEdgeItem::SkeletonEditEdgeItem(QGraphicsItem *parent) :
     m_secondNode(NULL)
 {
     setData(0, "edge");
-    QPen pen(Qt::darkGray);
-    pen.setWidth(15);
+    QPen pen(Theme::skeletonMasterNodeBorderColor);
+    pen.setWidth(Theme::skeletonMasterNodeBorderSize);
     setPen(pen);
 }
 
@@ -19,6 +20,11 @@ void SkeletonEditEdgeItem::setNodes(SkeletonEditNodeItem *first, SkeletonEditNod
     updatePosition();
 }
 
+bool SkeletonEditEdgeItem::connects(SkeletonEditNodeItem *nodeItem)
+{
+    return m_firstNode == nodeItem || m_secondNode == nodeItem;
+}
+
 void SkeletonEditEdgeItem::updatePosition()
 {
     if (m_firstNode && m_secondNode) {
diff --git a/src/skeletoneditedgeitem.h b/src/skeletoneditedgeitem.h
index d797022f..2faa702e 100644
--- a/src/skeletoneditedgeitem.h
+++ b/src/skeletoneditedgeitem.h
@@ -11,6 +11,7 @@ public:
     void updatePosition();
     SkeletonEditNodeItem *firstNode();
     SkeletonEditNodeItem *secondNode();
+    bool connects(SkeletonEditNodeItem *nodeItem);
 private:
     SkeletonEditNodeItem *m_firstNode;
     SkeletonEditNodeItem *m_secondNode;
diff --git a/src/skeletoneditgraphicsview.cpp b/src/skeletoneditgraphicsview.cpp
index 864cdab5..a25d8ea6 100644
--- a/src/skeletoneditgraphicsview.cpp
+++ b/src/skeletoneditgraphicsview.cpp
@@ -12,7 +12,8 @@ SkeletonEditGraphicsView::SkeletonEditGraphicsView(QWidget *parent) :
     m_pendingEdgeItem(NULL),
     m_inAddNodeMode(true),
     m_nextStartNodeItem(NULL),
-    m_lastHoverNodeItem(NULL)
+    m_lastHoverNodeItem(NULL),
+    m_lastMousePos(0, 0)
 {
     setScene(new QGraphicsScene());
     
@@ -76,25 +77,38 @@ void SkeletonEditGraphicsView::mousePressEvent(QMouseEvent *event)
     if (event->button() == Qt::LeftButton) {
         if (!m_inAddNodeMode) {
             if (m_lastHoverNodeItem) {
-                setNextStartNodeItem(m_lastHoverNodeItem);
+                setNextStartNodeItem(m_lastHoverNodeItem->master());
                 m_lastHoverNodeItem = NULL;
             }
         }
     }
+    m_lastMousePos = mapToScene(event->pos());
+}
+
+float SkeletonEditGraphicsView::findXForSlave(float x)
+{
+    return x - m_backgroundItem->boundingRect().width() / 4;
 }
 
 void SkeletonEditGraphicsView::mouseReleaseEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::LeftButton) {
         if (m_inAddNodeMode) {
-            SkeletonEditNodeItem *newNode = new SkeletonEditNodeItem(m_pendingNodeItem->rect());
-            scene()->addItem(newNode);
+            SkeletonEditNodeItem *masterNode = new SkeletonEditNodeItem(m_pendingNodeItem->rect());
+            scene()->addItem(masterNode);
+            QRectF slaveRect = m_pendingNodeItem->rect();
+            float x = m_pendingNodeItem->x() + m_pendingNodeItem->rect().width() / 2;
+            slaveRect.translate(findXForSlave(x) - x, 0);
+            SkeletonEditNodeItem *slaveNode = new SkeletonEditNodeItem(slaveRect);
+            scene()->addItem(slaveNode);
+            masterNode->setSlave(slaveNode);
+            slaveNode->setMaster(masterNode);
             if (m_nextStartNodeItem) {
                 SkeletonEditEdgeItem *newEdge = new SkeletonEditEdgeItem();
-                newEdge->setNodes(newNode, m_nextStartNodeItem);
+                newEdge->setNodes(masterNode, m_nextStartNodeItem);
                 scene()->addItem(newEdge);
             }
-            setNextStartNodeItem(newNode);
+            setNextStartNodeItem(masterNode);
             emit nodesChanged();
         }
     } else if (event->button() == Qt::RightButton) {
@@ -141,6 +155,32 @@ void SkeletonEditGraphicsView::mouseMoveEvent(QMouseEvent *event)
             m_lastHoverNodeItem = NULL;
         }
     }
+    QPointF curMousePos = pos;
+    if (m_lastHoverNodeItem) {
+        if (event->buttons() & Qt::LeftButton) {
+            QRectF rect = m_lastHoverNodeItem->rect();
+            if (m_lastHoverNodeItem->isMaster()) {
+                rect.translate(curMousePos.x() - m_lastMousePos.x(), curMousePos.y() - m_lastMousePos.y());
+                QRectF slaveRect = m_lastHoverNodeItem->slave()->rect();
+                slaveRect.translate(0, curMousePos.y() - m_lastMousePos.y());
+                m_lastHoverNodeItem->slave()->setRect(slaveRect);
+            } else {
+                rect.translate(curMousePos.x() - m_lastMousePos.x(), 0);
+            }
+            m_lastHoverNodeItem->setRect(rect);
+            QList<QGraphicsItem *>::iterator it;
+            QList<QGraphicsItem *> list = scene()->items();
+            for (it = list.begin(); it != list.end(); ++it) {
+                if ((*it)->data(0).toString() == "edge") {
+                    SkeletonEditEdgeItem *edgeItem = static_cast<SkeletonEditEdgeItem *>(*it);
+                    if (edgeItem->connects(m_lastHoverNodeItem))
+                        edgeItem->updatePosition();
+                }
+            }
+            emit nodesChanged();
+        }
+    }
+    m_lastMousePos = curMousePos;
 }
 
 void SkeletonEditGraphicsView::wheelEvent(QWheelEvent *event)
diff --git a/src/skeletoneditgraphicsview.h b/src/skeletoneditgraphicsview.h
index 6b9e3f0a..1ecf3c7b 100644
--- a/src/skeletoneditgraphicsview.h
+++ b/src/skeletoneditgraphicsview.h
@@ -29,10 +29,12 @@ private:
     bool m_inAddNodeMode;
     SkeletonEditNodeItem *m_nextStartNodeItem;
     SkeletonEditNodeItem *m_lastHoverNodeItem;
+    QPointF m_lastMousePos;
     void toggleAddNodeMode();
     void applyAddNodeMode();
     SkeletonEditNodeItem *findNodeItemByPos(QPointF pos);
     void setNextStartNodeItem(SkeletonEditNodeItem *item);
+    float findXForSlave(float x);
     
 };
 
diff --git a/src/skeletoneditnodeitem.cpp b/src/skeletoneditnodeitem.cpp
index 5ab15323..9ede8b73 100644
--- a/src/skeletoneditnodeitem.cpp
+++ b/src/skeletoneditnodeitem.cpp
@@ -1,19 +1,52 @@
 #include <QPen>
 #include "skeletoneditnodeitem.h"
+#include "theme.h"
 
 SkeletonEditNodeItem::SkeletonEditNodeItem(const QRectF &rect, QGraphicsItem *parent) :
     QGraphicsEllipseItem(rect, parent),
     m_highlighted(false),
-    m_isNextStartNode(false)
+    m_isNextStartNode(false),
+    m_master(NULL),
+    m_slave(NULL)
 {
     setData(0, "node");
     updateBorder();
 }
 
+bool SkeletonEditNodeItem::isSlave()
+{
+    return NULL != m_master;
+}
+
+bool SkeletonEditNodeItem::isMaster()
+{
+    return NULL == m_master;
+}
+
+SkeletonEditNodeItem *SkeletonEditNodeItem::master()
+{
+    return m_master ? m_master : this;
+}
+
+void SkeletonEditNodeItem::setMaster(SkeletonEditNodeItem *nodeItem)
+{
+    m_master = nodeItem;
+}
+
+void SkeletonEditNodeItem::setSlave(SkeletonEditNodeItem *nodeItem)
+{
+    m_slave = nodeItem;
+}
+
+SkeletonEditNodeItem *SkeletonEditNodeItem::slave()
+{
+    return m_slave;
+}
+
 QPointF SkeletonEditNodeItem::origin()
 {
-    return QPointF(rect().left() + rect().width() / 2,
-        rect().top() + rect().height() / 2);
+    return QPointF(rect().x() + rect().width() / 2,
+        rect().y() + rect().height() / 2);
 }
 
 float SkeletonEditNodeItem::radius()
@@ -25,10 +58,14 @@ void SkeletonEditNodeItem::setHighlighted(bool highlighted)
 {
     m_highlighted = highlighted;
     if (m_highlighted) {
-        setBrush(QBrush(Qt::gray));
+        setBrush(QBrush(isMaster() ? Theme::skeletonMasterNodeFillColor :  Theme::skeletonSlaveNodeFillColor));
     } else {
         setBrush(QBrush(Qt::transparent));
     }
+    if (m_slave)
+    {
+        m_slave->setHighlighted(highlighted);
+    }
 }
 
 void SkeletonEditNodeItem::setIsNextStartNode(bool isNextStartNode)
@@ -39,7 +76,9 @@ void SkeletonEditNodeItem::setIsNextStartNode(bool isNextStartNode)
 
 void SkeletonEditNodeItem::updateBorder()
 {
-    QPen pen(m_isNextStartNode ? Qt::black : Qt::darkGray);
-    pen.setWidth(15);
+    QPen pen(m_isNextStartNode ?
+        (isMaster() ? Theme::skeletonMasterNodeBorderHighlightColor : Theme::skeletonSlaveNodeBorderHighlightColor) :
+        (isMaster() ? Theme::skeletonMasterNodeBorderColor : Theme::skeletonSlaveNodeBorderColor));
+    pen.setWidth(isMaster() ? Theme::skeletonMasterNodeBorderSize : Theme::skeletonSlaveNodeBorderSize);
     setPen(pen);
 }
diff --git a/src/skeletoneditnodeitem.h b/src/skeletoneditnodeitem.h
index 24ca91f5..bc048036 100644
--- a/src/skeletoneditnodeitem.h
+++ b/src/skeletoneditnodeitem.h
@@ -2,6 +2,8 @@
 #define SKELETON_EDIT_NODE_ITEM_H
 #include <QGraphicsEllipseItem>
 
+class SkeletonEditEdgeItem;
+
 class SkeletonEditNodeItem : public QGraphicsEllipseItem
 {
 public:
@@ -10,9 +12,17 @@ public:
     float radius();
     void setHighlighted(bool highlited);
     void setIsNextStartNode(bool isNextStartNode);
+    bool isSlave();
+    bool isMaster();
+    void setMaster(SkeletonEditNodeItem *nodeItem);
+    void setSlave(SkeletonEditNodeItem *nodeItem);
+    SkeletonEditNodeItem *master();
+    SkeletonEditNodeItem *slave();
 private:
     bool m_highlighted;
     bool m_isNextStartNode;
+    SkeletonEditNodeItem *m_master;
+    SkeletonEditNodeItem *m_slave;
     void updateBorder();
 };
 
diff --git a/src/skeletontomesh.cpp b/src/skeletontomesh.cpp
index b1df87f7..d1b2a47f 100644
--- a/src/skeletontomesh.cpp
+++ b/src/skeletontomesh.cpp
@@ -33,7 +33,7 @@ SkeletonToMesh::SkeletonToMesh(SkeletonEditGraphicsView *graphicsView) :
                     
                     node.originX = origin.x();
                     node.originY = origin.y();
-                    node.originZ = 0;
+                    node.originZ = nodeItem->slave()->origin().x();
                     node.bmeshNodeId = -1;
                     node.radius = nodeItem->radius();
                     
@@ -79,8 +79,10 @@ void SkeletonToMesh::process()
         return;
     }
     float left = -1;
+    float right = -1;
     float top = -1;
     float bottom = -1;
+    float zLeft = -1;
     for (size_t i = 0; i < m_nodes.size(); i++) {
         SkeletonNode *node = &m_nodes[i];
         if (left < 0 || node->originX < left) {
@@ -89,9 +91,15 @@ void SkeletonToMesh::process()
         if (top < 0 || node->originY < top) {
             top = node->originY;
         }
+        if (node->originX > right) {
+            right = node->originX;
+        }
         if (node->originY > bottom) {
             bottom = node->originY;
         }
+        if (zLeft < 0 || node->originZ < zLeft) {
+            zLeft = node->originZ;
+        }
     }
     float height = bottom - top;
     if (height <= 0) {
@@ -102,9 +110,9 @@ void SkeletonToMesh::process()
     int bmesh = meshlite_bmesh_create(context);
     for (size_t i = 0; i < m_nodes.size(); i++) {
         SkeletonNode *node = &m_nodes[i];
-        float x = (node->originX - left) / height;
-        float y = (node->originY - top) / height;
-        float z = node->originZ / height;
+        float x = (node->originX - left - height / 2) / height;
+        float y = (node->originY - top - height / 2) / height;
+        float z = (node->originZ - zLeft - height / 2) / height;
         float r = node->radius / height;
         node->bmeshNodeId = meshlite_bmesh_add_node(context, bmesh, x, y, z, r);
     }
diff --git a/src/theme.cpp b/src/theme.cpp
new file mode 100644
index 00000000..61aba809
--- /dev/null
+++ b/src/theme.cpp
@@ -0,0 +1,10 @@
+#include "theme.h"
+
+QColor Theme::skeletonMasterNodeBorderColor = QColor(0x33, 0x33, 0x33, 128);
+QColor Theme::skeletonMasterNodeBorderHighlightColor = QColor(0x00, 0x00, 0x00, 200);
+QColor Theme::skeletonMasterNodeFillColor = QColor(0xcc, 0xcc, 0xcc, 128);
+int Theme::skeletonMasterNodeBorderSize = 15;
+QColor Theme::skeletonSlaveNodeBorderColor = QColor(0x33, 0x33, 0x33, 128);
+QColor Theme::skeletonSlaveNodeBorderHighlightColor = QColor(0x00, 0x00, 0x00, 200);
+QColor Theme::skeletonSlaveNodeFillColor = QColor(0xcc, 0xcc, 0xcc, 128);
+int Theme::skeletonSlaveNodeBorderSize = 15;
diff --git a/src/theme.h b/src/theme.h
new file mode 100644
index 00000000..babf768a
--- /dev/null
+++ b/src/theme.h
@@ -0,0 +1,18 @@
+#ifndef THEME_H
+#define THEME_H
+#include <QColor>
+
+class Theme
+{
+public:
+    static QColor skeletonMasterNodeBorderColor;
+    static QColor skeletonMasterNodeBorderHighlightColor;
+    static QColor skeletonMasterNodeFillColor;
+    static int skeletonMasterNodeBorderSize;
+    static QColor skeletonSlaveNodeBorderColor;
+    static QColor skeletonSlaveNodeBorderHighlightColor;
+    static QColor skeletonSlaveNodeFillColor;
+    static int skeletonSlaveNodeBorderSize;
+};
+
+#endif