Algorithm/code to update temperature plot in real time with PIC micro

Hello.
I'm searching some code example (no matter the language) where the graph (for instance a temperature Vs time plot on a GLCD) is updated in real time, that is when a new data is acquired is put at the end of the graph, scrolling all the graph so that the oldest data disappear.

Thank you for any suggestion for such a code, or where to find nice examples.

Thank you

Regards