Hi, I’m planning to use pyqtgraph in Xavier board flashed with jetpack 4.1.1
I installed pyqt5 using
sudo apt-get install python3-pyqt5 and pyqt5.qtopengl
and running the script of example code in pyqtgraph and throwing this error ,
how can i solve this problem?
import initExample
import sys
from pyqtgraph.Qt import QtCore, QtGui
import pyqtgraph.opengl as gl
app = QtGui.QApplication(sys.argv)
w = gl.GLViewWidget()
w.opts['distance'] = 20
w.show()
w.setWindowTitle('pyqtgraph example: GLViewWidget')
ax = gl.GLAxisItem()
ax.setSize(5,5,5)
w.addItem(ax)
b = gl.GLBoxItem()
w.addItem(b)
ax2 = gl.GLAxisItem()
ax2.setParentItem(b)
b.translate(1,1,1)
## Start Qt event loop unless running in interactive mode.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()
Using PyQt5 (default graphics system)
[18:43:02]
|==============================>>
| Traceback (most recent call last):
| File "/home/nvidia/pyqtgraph/examples/GLViewWidget.py", line 38, in <module>
| QtGui.QApplication.instance().exec_()
| File "/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py", line 193, in paintGL
| self.drawItemTree(useItemNames=useItemNames)
| File "/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py", line 233, in drawItemTree
| self.drawItemTree(i, useItemNames=useItemNames)
| File "/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py", line 214, in drawItemTree
| debug.printExc()
| --- exception caught here ---
| File "/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py", line 207, in drawItemTree
| glPushAttrib(GL_ALL_ATTRIB_BITS)
| File "/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/platform/baseplatform.py", line 402, in __call__
| return self( *args, **named )
| File "/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/error.py", line 232, in glCheckError
| baseOperation = baseOperation,
| OpenGL.error.GLError: GLError(
| err = 1282,
| description = b'invalid operation',
| baseOperation = glPushAttrib,
| cArguments = (GL_ALL_ATTRIB_BITS,)
| )
|==============================<<
Traceback (most recent call last):
File “/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py”, line 207, in drawItemTree
glPushAttrib(GL_ALL_ATTRIB_BITS)
File “/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/platform/baseplatform.py”, line 402, in call
return self( *args, **named )
File “/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/error.py”, line 232, in glCheckError
baseOperation = baseOperation,
OpenGL.error.GLError: GLError(
err = 1282,
description = b’invalid operation’,
baseOperation = glPushAttrib,
cArguments = (GL_ALL_ATTRIB_BITS,)
)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File “/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py”, line 219, in drawItemTree
if int(ver.split(b’.‘)[0]) < 2:
ValueError: invalid literal for int() with base 10: b’OpenGL’
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File “/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py”, line 193, in paintGL
self.drawItemTree(useItemNames=useItemNames)
File “/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py”, line 233, in drawItemTree
self.drawItemTree(i, useItemNames=useItemNames)
File “/home/nvidia/pyqtgraph/pyqtgraph/opengl/GLViewWidget.py”, line 225, in drawItemTree
glPopAttrib()
File “/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/platform/baseplatform.py”, line 402, in call
return self( *args, **named )
File “/home/nvidia/.local/lib/python3.6/site-packages/OpenGL/error.py”, line 232, in glCheckError
baseOperation = baseOperation,
OpenGL.error.GLError: GLError(
err = 1282,
description = b’invalid operation’,
baseOperation = glPopAttrib,
cArguments = ()
)