That is a very good point about this being an unnecessary visual representation of the strain. A traditional plot of each dimension against time in 2d would suffice. Part of my reasoning for attempting this in 3d was a as a learning experience. For now, I think I will take your advice and write what I need from a 2d standpoint. 3d can come later when I improve my programming skills :D
Thanks for the help! On Thu., Aug. 20, 2020, 5:34 a.m. JMA 1, <[email protected]> wrote: > 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 > <https://groups.google.com/d/msgid/pyqtgraph/CAKEVg3E68AKT%2BbhnNej_%2BkBmajOEjmx2RLBgx3t6Wk3EdyLTYA%40mail.gmail.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/CAArjTo%2B4UReszee9CitDiA9rJMYw71tqFN%2B%3D5Fkwz%2BXNBgZZXw%40mail.gmail.com.
