chart scrolling question

[ejleiss]

Hi,

I have created a line chart to input data that is received from my serial port. Right now my data comes in and is plotted on the chart but my chart x axis squishes closer together with increasing data. What I really want to do is have my line scroll across the screen in "real time" and the x axis of the chart not change scale. Could anybody help me with this?

 

[ejleiss]

to clarify... I don't want the minimum x axis to be fixed at zero while my incoming data is being plotted. I would like it to stay at a specific range... say 200 points, but scroll along with the data unscaled.