"wayne galbraith" <[EMAIL PROTECTED]> wrote (in part): I'm guessing that, that is what most people are after and as such would require a buffer of some description to be kept.
It is a bit of a pity NI couldn't have written this as I'm sure their s.ware engineers could write it much more efficiently than the rest of us. Basically - shove the data in one end with a buffer size limit and then allow you to plot any point against any other appending data only as you go. Then if the X-axis on the plot has altered then redraw the whole plot. This I'm guessing is what most of us have implemented on our own - just not as efficiently as NI may have written it. wayne =========================================================== I use the XY graph regularly to display time stamped data where the timestamps do not occur at regular intervals. I have developed a few subVIs to support this. There are examples of this approach on the Process Automation Corporation website. If you want to download an example of this go to: http://www.processauto.com/Downloads.htm and look for the following text: "Download a LabVIEW v6.0.2 program (133 Kbytes *.exe file) that shows how to create a plot that changes colors when high and low alarm limits are exceeded. It also demonstrates how time stamped data [i.e. (y,t) points] can be buffered and displayed on LabVIEW XY graphs." Lewis Drake Process Automation Corporation Belle Mead, NJ 908 359-1011 www.processauto.com
