**myplotlib** is an interface between you and the great functionality of matplotlib.
As such it naturally inherit a lot of the structures from matplotlib:
alike in matplotlib a plot is composed of four type of objects:
1.**The window** (that contains the buttons, and handle events)
2.**The canvas** (the sheet of paper where you draw the figure)
3.**The figure** (an empty object that contains an array of axes)
4.**The axes** (This is the core of the plot)
We naturally start with the **axes**.
An axes is composed of two **axis**, two **labels**, one **title** and a bunch of **artists**.
- an **axis**: has ticks (minors and majors), ticklabels (the numbers) and limits
- the **labels** and **title** are just text objects
- the **artists** are everything you may draw on the axes: lines, polygones, images, text, surfaces... (see [doc](http://matplotlib.org/users/artists.html#axes-container))
In **myplotlib** we add two intrinsic functionalities to an axes.
The main idea behind **myplotlib** is the independence of the axes.
> *An axes should know how to extract the relevant information it needs and how to represent them on the screen.*
As a results a MyAxes instance (the axes in myplotlib) has two additional functions:
-**formatRawData**: the function that extract the information (tech: produce a self.data object).
-**plotting**: the function that represent these data on the screen (tech: produce artists in the axes container).
If you look at [myplotlib/myAxes.py](https://gitlab.aip.de/yfournier/myplotlib/blob/tools/myAxes.py)
you will remark that these two functions are empty. That is the power of object oriented programming.
`MyAxes` is a container class that fits into a framework, it is compatible with all the functionalities of matplotlib.
So now you have the freedom of specialising this **base class** to any purpose you wish,
ensuring that you can enjoy the full power of matplotlib.
Now we will see how to overwrite the **base class**`MyAxes` with a new class that we will call `AxMyFirstAxes`.
To overwrite a class you just need to overwrite these two empty functions and actually do something.
