Creating custom display graphs for grasshopper canvas

Hi guys

I want to create my own custom graphs that will update automatically as the data that is entered is updated just like the graphs you can find under Display >> graphs 

I want to use ghpython and finally I want to create 3 types of graphs that look just like the attached pictures

Has anyone apart from the creators of grasshoppper done this before? Can anyone suggest some starting points?

Any help is much appreciated!