Hello,
I am trying to figure out what seems to be a recurring error:
PyQtGraph works fine in 2D but I do have a fez errors when trying the
script "test3D.py" enclosed in this message .
When executing the script ( test3D.py), the output displayed on the console
is the following:
*<module 'OpenGL' from 'C:\Python27\lib\site-packages\OpenGL\__init__.pyc'>
3.1.0*
*[16:02:39] |==============================>> | Traceback (most
recent call last): | File
"C:\Users\mathieu.bisquay\Documents\scripts\tests\pyqtgraph\test3D.py",
line 30, in <module> | pg.QtGui.QApplication.exec_() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 179,
in paintGL | self.drawItemTree(useItemNames=useItemNames) |
File "C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line
219, in drawItemTree | self.drawItemTree(i,
useItemNames=useItemNames) | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 200,
in drawItemTree | debug.printExc() | --- exception caught
here --- | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 197,
in drawItemTree | i.paint() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\items\GLMeshItem.py", line
170, in paint | with self.shader(): | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\shaders.py", line 317, in
__enter__ | if len(self.shaders) > 0 and self.program() != -1:
| File "C:\Python27\lib\site-packages\pyqtgraph\opengl\shaders.py", line
309, in program | compiled = [s.shader() for s in self.shaders] ##
compile all shaders | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\shaders.py", line 227, in
shader | raise Exception("This OpenGL implementation does not
support shader programs; many OpenGL features in pyqtgraph will not
work.") | Exception: This OpenGL implementation does not support shader
programs; many OpenGL features in pyqtgraph will not work.
|==============================<<Error while drawing item
<pyqtgraph.opengl.items.GLSurfacePlotItem.GLSurfacePlotItem object at
0x05D9E2B0>. The original exception is printed above; however, pyqtgraph
requires OpenGL version 2.0 or greater for many of its 3D features and your
OpenGL version is 1.1.0. Installing updated display drivers may resolve
this issue.[16:02:39] |==============================>> |
Traceback (most recent call last): | File
"C:\Users\mathieu.bisquay\Documents\scripts\tests\pyqtgraph\test3D.py",
line 30, in <module> | pg.QtGui.QApplication.exec_() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 179,
in paintGL | self.drawItemTree(useItemNames=useItemNames) |
File "C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line
219, in drawItemTree | self.drawItemTree(i,
useItemNames=useItemNames) | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 200,
in drawItemTree | debug.printExc() | --- exception caught
here --- | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 197,
in drawItemTree | i.paint() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\items\GLMeshItem.py", line
204, in paint | glDisableClientState(GL_COLOR_ARRAY) | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\shaders.py", line 363, in
__exit__ | glUseProgram(0) | File
"C:\Python27\lib\site-packages\OpenGL\platform\baseplatform.py", line 407,
in __call__ | self.__name__, self.__name__, |
NullFunctionError: Attempt to call an undefined function glUseProgram,
check for bool(glUseProgram) before calling
|==============================<<Error while drawing item
<pyqtgraph.opengl.items.GLSurfacePlotItem.GLSurfacePlotItem object at
0x05D9E2B0>. The original exception is printed above; however, pyqtgraph
requires OpenGL version 2.0 or greater for many of its 3D features and your
OpenGL version is 1.1.0. Installing updated display drivers may resolve
this issue.[16:02:41] |==============================>> |
Traceback (most recent call last): | File
"C:\Users\mathieu.bisquay\Documents\scripts\tests\pyqtgraph\test3D.py",
line 30, in <module> | pg.QtGui.QApplication.exec_() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 179,
in paintGL | self.drawItemTree(useItemNames=useItemNames) |
File "C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line
219, in drawItemTree | self.drawItemTree(i,
useItemNames=useItemNames) | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 200,
in drawItemTree | debug.printExc() | --- exception caught
here --- | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 197,
in drawItemTree | i.paint() | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\items\GLMeshItem.py", line
204, in paint | glDisableClientState(GL_COLOR_ARRAY) | File
"C:\Python27\lib\site-packages\pyqtgraph\opengl\shaders.py", line 363, in
__exit__ | glUseProgram(0) | File
"C:\Python27\lib\site-packages\OpenGL\platform\baseplatform.py", line 407,
in __call__ | self.__name__, self.__name__, |
NullFunctionError: Attempt to call an undefined function glUseProgram,
check for bool(glUseProgram) before calling
|==============================<<Error while drawing item
<pyqtgraph.opengl.items.GLSurfacePlotItem.GLSurfacePlotItem object at
0x05D9E2B0>. The original exception is printed above; however, pyqtgraph
requires OpenGL version 2.0 or greater for many of its 3D features and your
OpenGL version is 1.1.0. Installing updated display drivers may resolve
this issue.*
Also I updated pyopengl to 3.1.0 as it can be seen at the beginning of the
error message ( highlighted in blue).
However the version 1.1.0 is also found (in orange there above).
Drivers on my computer were updated a couple of months ago (january 2017).
I used the windows installer of pyqtgraph V0.10.0 ...
Question is: How could that issue be solved?
Many thanks
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import pyqtgraph as pg
import pyqtgraph.opengl as gl
#print 'Verification : ',gl.__version__
import OpenGL
print OpenGL, OpenGL.__version__
### something to graph ######
from numpy import *
pi=3.1415
X=linspace(-10,10,100)
Y1=2+sin(X)
Y2=-2+Y1*Y1
Y3=cos(1*Y1)/(X+0.0131415)
Y4=4+sin(X)*cos(2*X)
Z=exp(-0.1*X*X)*cos(0.3*(X.reshape(100,1)**2+X.reshape(1,100)**2))
#############################
# you need this call ONCE
app=pg.QtGui.QApplication([])
#############################
##### plot 3D surface data ####
w = gl.GLViewWidget()
## Saddle example with x and y specified
p = gl.GLSurfacePlotItem(x=X, y=X, z=Z, shader='heightColor')
w.addItem(p)
# show
w.show()
pg.QtGui.QApplication.exec_()
#==============================================
##### plot 3D line data ####
w = gl.GLViewWidget()
# first line
Z=zeros(size(X))
p=array([X,Y2,Z])
p=p.transpose()
C=pg.glColor('w')
###### SCATTER ######
plt = gl.GLScatterPlotItem(pos=p, color=C)
w.addItem(plt)
# second line
Z=zeros(size(X))
p=array([X,Z,Y3])
p=p.transpose()
C=pg.glColor('b')
######## LINE ############
plt = gl.GLLinePlotItem(pos=p, connected=False,width=20.5,color=C)
w.addItem(plt)
# third line
Z=zeros(size(X))
p=array([Z,Y1,X])
p=p.transpose()
C=pg.glColor('g')
########### SCATTER #############
plt = gl.GLScatterPlotItem(pos=p, color=C, size=20)
w.addItem(plt)
############# GRID #################
g=gl.GLGridItem()
w.addItem(g)
# show
w.show()
pg.QtGui.QApplication.exec_()
