.. py:module:: central

The class Central
=================
	       

The class :py:class:`Central` is the central widget of the window. The specification will evolve with 3D imaging.

.. py:class::  Central()

   .. rubric:: Instance attribute
    
   .. py:attribute:: layout

      The layout that origanizes the widgets in the central widget (a horizontal box)

   .. py:attribute:: visuwidget

      An instance to the class :py:class:`plot_canvas.PlotCanvas` a canvas in which images can be rendered.

   .. py:attribute:: vtkwidget

      An instance to the class :py:class:`vtkwidget.VTKWidget` a vtk widget where to render 3D objects

   .. rubric:: Instance methods:
      
   .. py:method:: render_item(item)

      Renders the item either in  the :py:attr:`visuwidget` (2D) or the :py:attr:`vtkwidget`
   
   .. py:method:: clear()

      Clears the :py:attr:`visu_widget`