IWR6843ISK: The people counting GUI didn't show the 3D display part

Hi James, 

What version of the open graphics library do you have on your raspberry pi?

Thank you,

Angie 

Hello Angie,

The following are the related package and corresponding version:

PyQt5 5.15.2

pyOpenGL 3.1.6

pyqtgraph 0.12.4

BR

James

Hi James,

I would recommend trying to revert your OpenGL back to version 2.0 and seeing if this resolves your issue.

Thank you,

Angie

Hello Angie,

Did you mean the package "pyOpenGL"? If the pyOpenGL version is back to 2.0, the version is too old to use it.

The another error message that we can take a look are as follow:

1. qt.qpa.xcb: QXcbConnection: XCB error: 148 (Unknown), sequence: 192, resource id: 0, major code: 140 (Unknown), minor code: 20

2. OpenGL.error.GLError: GLError(err = 1282, baseOperation = glMatrixMode, cArguments = (GL_PROJECTION,))

BR

James

Hi James,

I am going to look into these further tomorrow and get back to you.

Thank you,

Angie

Hi,

Two follow up questions and one thing to try: 

Question 1: When does this error get thrown?

Question 2: Can you share the complete command line print out?

Something to try: revert pyqtgraph to 0.11.1

Thanks,

Angie

Hello Angie,

About the previous problem:
1.

(1) As the gui is executed, the error appears. I think the key is the opengl(3D display part cannot work)
in the package pyqtgraph because the 2D display part of the pyqtgraph can work normally.
(2) I have also tried another version of pyqtgraph, it comes the same result.

2. The complete command line print out is as follow:

Thank you,

James

Hi James,

I would try using a 64 bit python instead of 32 bit python.

Thank you,

Angie

Hi Angie,

My raspberry pi 4 is 32 bit.

Does the gui work on 32 bit system?

Thanks,

James 

Hi James,

We will test this and get back to you next week. If you haven't heard from me by Tuesday feel free to ping this thread.

My apologies, it is not often we experience people implementing our GUIs on raspberry pi devices. 

Thanks,

Angie

Hello Angie, 

I think it has a chance to get the success on raspberry pi as long as the problem is solved for the opengl of pyqtgraph package.

Do you have any update for this thread?

BR

James

Hi James,

It turns out that it is the pyqtgraph.opengl library that is incompatible with the opengl es library. The error is getting called in GLViewWidget.py and not in TI's GUI code. It is being called because your raspberry pi is using the "ES" (embedded systems) version of the graphics library and the pyqtgraph.opengl library depends on the desktop version of OpenGL.

I would recommend doing initial development with our GUI on PC and then move the GUI over to raspberry pi, you will need to edit the GUI to use just libraries that are ES friendly.

Thank you,

Angie

That is great! Please feel free to make another thread if you have any follow up questions.

Thanks,

Angie