sequence and XY-graph

[VRPaul]

Hi,

is it possible to use the same graph in multiple sequences. i'm simulating a changing pH value, each sequence i'm using a different flow(of NaOH) to neutralize it. i want to make a realtime graph of the changing pH value so it is visible on the Y-axis and the added NaOH is cumulating on the X-axis. it works fine without realtime but it would nicer if the progress of the proces was visible. it's probably a whole other of designing the program. Can anyone help me?

Paul

[Neville D]

QUOTE(VRPaul @ Jul 20 2007, 03:00 AM)

Hi,

is it possible to use the same graph in multiple sequences. i'm simulating a changing pH value, each sequence i'm using a different flow(of NaOH) to neutralize it. i want to make a realtime graph of the changing pH value so it is visible on the Y-axis and the added NaOH is cumulating on the X-axis. it works fine without realtime but it would nicer if the progress of the proces was visible. it's probably a whole other of designing the program. Can anyone help me?

Paul

You could probably use a Chart instead of a graph, but you would have to put both the NaOH and the pH on the Y axis, and X axis would be time. You can have multiple Y-axes (one on each side of the chart) for the two variables.

Trouble with the graph is that it is re-drawn every time even when a single point is added at the end. That said, there is an example in LV that shows how you can use a graph like a chart with updates.

Neville.