Stacked plot - Cursor functionalities

[spider_1112002]

Hi,

I think I am missing something, but I could not find cursor functionalities to click and select values for chart indicators of front panel.

In our application, we need to plot stacked plots of two channels acquiring data, so that they can be scrolled simultaneously in time (x-axis). We are using Waveform chart with Stacked plots for it. Now, we also want to click on the graph and get value of the Y-scale of that particular graph (similar to cursor in xy graph). The only solution, I can come up with right now is to use transprent indicator on top the the chart, and find out the mouse click position and relate back to the waveform chart. I am not aware of any straight or easy way to do it. If you have any ideas, please suggest.

Thank you in advance.

[Mike Ashe]

Hmmm, You have several different options.

1. Use a Waveform Graph and implment the history feature of charts using a circular buffer VI in your diagram. That gives you the cursor functions, but you have to do extra managment behind the scenes.

2. Use an Event structure to get Mouse Up/Down/Move on your chart and from that you can get mouse coords, but then you have to do your own conversion to Y scale points, etc.

3. Plot your data to a picture control (see the example VIs with LabVIEW)

4. Perhaps find an XControl that gives you this combination of functionality, but I have not heard of anyone doing this yet. (That doesn't mean it hasn't been done, go look :-))

Good Luck