.. py:module:: plot_canvas

The class PlotCanvas
====================
	       

The class :py:class:`PlotCanvas` is a canvas on which it is possible to visualize graphics with matplotlib.pyplot.

.. py:class::  PlotCanvas()

   Inherits from the class :py:class:`matplotlib.backends.backend_qt5agg.FigureCanvasQTAgg`

   .. rubric:: Instance attribute
    
   .. py:attribute:: fig

      The figure where the image is rendered

   .. py:attribute:: nplots

      The number of subplots of the figure (1 or 2 depending on if the histogram is shown)

   .. py:attribute:: ax

      One subplot or array of 2 subplots of the figure


   .. rubric:: Instance methods:
      
   .. py:method:: render_image(ima)

      Renders the image (an instance to the class :py:class:`rimage.RImage`) in one or two subplots depending on if the histogram is shown or not
   
   .. py:method::  clear()

      Removes all subplots

   .. py:method:: refresh()

      Redraws the current image in the current subplots