Greetings, I have not used the 3D plot, but the basic plot works well and you can plot at reasonably fast rates. I've simulated 100 Hz update rates using a Worker thread and it appears to works well. I did not look at your code to know if you are trying to visualize stress/strain in 3D. Traditional type plotting (3 rows on a screen for x,y,z) would seem reasonable as you would want to analyze the data. This is off topic, but if you get stuck try to focus on the problem you are trying to solve (for example capturing and analyzing; presenting fancy data is always secondary).
Cheers, Justin On Thu, Aug 20, 2020 at 12:26 AM JJ D <[email protected]> wrote: > > Hello everyone! > > I am currently writing a program using pyqtgraph that displays strain > gauge readings sent over serial from an Arduino. My goal is to visualize > the flex in the fuselage of a carbon fibre rocket our university team is > building. > > Modifying some of the 3d graph example code listed here > <https://pyqtgraph.readthedocs.io/en/latest/3dgraphics.html>, I was able > to plot a line. Next I wanted to test that I could update the line live and > at an acceptable frame rate. So I created a 3d numpy array, passed it to a > GLLinePlotItem via setData() and iteratively updated the numpy array while > calling setData() each time. Unfortunately the graph does not seem to > update. I've done quite a bit of digging in the documentation, and from > what I've read, setData() should automatically update the line on the > graph. > > My code is below. Let me know if you have any ideas, or can point me to > documentation that will help learn how to do this properly. Also it needs > to be run with "python3 -i <filename.py>" right now. Thanks! > > > -- > You received this message because you are subscribed to the Google Groups > "pyqtgraph" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pyqtgraph/c8f4963f-b29c-4276-9bda-69ba930575fen%40googlegroups.com > <https://groups.google.com/d/msgid/pyqtgraph/c8f4963f-b29c-4276-9bda-69ba930575fen%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pyqtgraph/CAKEVg3E68AKT%2BbhnNej_%2BkBmajOEjmx2RLBgx3t6Wk3EdyLTYA%40mail.gmail.com.
