How to send 32M points to a graph?

[hugoliang]

Dear All,

I config the graph that it can only display 600 points in one picture. To see more points needs to click the x scroll. I have tried to send 8M,16M and 32M points to a graph. During the process of sending 32M points to the graph, the warning is "the memory is out!". Is it the reason of memory or display card memory?

I see that I should not send so many points to the graph in one time. Could you tell me how to draw the vi to do the similar things in normal way? To add a number control to let user input the range of time which can't be include more than 8M points?

Would you please give me your good way to solve the problem?

Thank you!

[gwd]

Easy:  Decimate 1D array.vi

Less easy and computationally intensive:  moving average

There is little point in plotting more points than the number of pixels in the graph.

[craigc]

Not sure if this is what you mean but does this help you?  It basically splits the data into a subset and displays it.

Craig

[DFGray]

Check out Managing Large Data Sets in LabVIEW.  It contains a complete discussion of this problem, with solutions and code.  It has lots of tips for dealing with large data sets that you may want to know.  Let us know if you need more help.