class TVolumePosition: public TObject

Node normal constructor*-*-*-*-
*-*                  ======================
-
*-*    name    is the name of the node
*-*    title   is title
*-*    x,y,z   are the offsets of the volume with respect to his mother
*-*    matrixname  is the name of the rotation matrix
-
*-*    This new node is added into the list of sons of the current node
-

Node normal constructor
*-*                  ================================
-
*-*    name    is the name of the node
*-*    title   is title
*-*    x,y,z   are the offsets of the volume with respect to his mother
*-*    matrix  is the pointer to the rotation matrix
-
*-*    This new node is added into the list of sons of the current node
-

 Pick the "old" position by pieces

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-*-*-*-*-*Compute distance from point px,py to a Node
*-*                  ===========================================
*-*  Compute the closest distance of approach from point px,py to this node.
*-*  The distance is computed in pixels units.
-
-
*

-*-*-*-*-*-*-*-*Draw Referenced node with current parameters
*-*                   =============================================

-*-*-*-*-*-*-*Execute action corresponding to one event
*-*                  =========================================
*-*  This member function must be implemented to realize the action
*-*  corresponding to the mouse click on the object in the window
*

return VolumePosition name

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-*-*Convert one point from local system to master reference system
*-*      ==============================================================

  Note that before invoking this function, the global rotation matrix
  and translation vector for this node must have been computed.
  This is automatically done by the Paint functions.
  Otherwise TVolumePosition::UpdateMatrix should be called before.

-*Convert nPoints points from local system to master reference system
*-*      ==============================================================

  Note that before invoking this function, the global rotation matrix
  and translation vector for this node must have been computed.
  This is automatically done by the Paint functions.
  Otherwise TVolumePosition::UpdateMatrix should be called before.

-*-*Convert one point from master system to local reference system
*-*      ==============================================================

  Note that before invoking this function, the global rotation matrix
  and translation vector for this node must have been computed.
  This is automatically done by the Paint functions.
  Otherwise TVolumePosition::UpdateMatrix should be called before.

-*Convert nPoints points from master system to local reference system
*-*      ==============================================================

  Note that before invoking this function, the global rotation matrix
  and translation vector for this node must have been computed.
  This is automatically done by the Paint functions.
  Otherwise TVolumePosition::UpdateMatrix should be called before.

-*-*-*-*-*-*-*-*Paint Referenced node with current parameters
*-*                   ==============================================
*

to be documented

-*-*-*-* Reset this position 
*-*                           ===================
*-*    x,y,z   are the offsets of the volume with respect to his mother
*-*    matrix  is the pointer to the rotation matrix
-
*-*    This method is to re-use the memory this object without delete/create steps
-

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 Stream an object of class TVolumePosition.