On Monday, June 17, 2019 at 9:23:21 PM UTC+8, Xiaoxue Zhang wrote:
>
> Hi, Kenneth,
>
> Thanks so much for your kind reply.
>
> My python version is Python 3.7.2, I installed it via via Homebrew.
>
> PyQt5 is installed for PyQtGraph. I just install the PyQtGraph by this
> command: pip install pyqtgraph. I also installed OpenGL for 3D display.
>
> Here, I will use a simple example to show the problem.
>
> code:
> from pyqtgraph.Qt import QtCore, QtGui
> import pyqtgraph.opengl as gl
> import numpy as np
> from math import *
> import time
>
> app = QtGui.QApplication([])
> w = gl.GLViewWidget()
> w.opts['distance'] = 200
> w.show()
> w.setWindowTitle('Quadcopter Simulation')
>
> ## create three grids, add each to the view
> xgrid = gl.GLGridItem()
> ygrid = gl.GLGridItem()
> zgrid = gl.GLGridItem()
> w.addItem(xgrid)
> w.addItem(ygrid)
> w.addItem(zgrid)
>
> ## rotate x and y grids to face the correct direction
> xgrid.rotate(90, 0, 1, 0)
> ygrid.rotate(90, 1, 0, 0)
>
> xgrid.scale(1.0, 1.0, 1.0)
> ygrid.scale(1.0, 1.0, 1.0)
> zgrid.scale(1.0, 1.0, 1.0)
>
> md = gl.MeshData.sphere(rows=10, cols=10, radius=5)
> body = gl.GLMeshItem(meshdata=md, smooth=False, drawFaces=True, drawEdges=
> True, edgeColor=(1,0,0,0), color=(1,0,0,0) )
> w.addItem(body)
>
> x = np.zeros((12,))
>
> w.show()
> app.processEvents()
> time.sleep(0.01)
>
> QtGui.QApplication.instance().exec_()
>
> I just plot a sphere on a 3D figure. The output figure just occupy 1/4 of
> the whole window, as shown below.
>
> [image: Screenshot 2019-06-17 at 9.21.53 PM.png]
>
> Thanks for your help. Look forward to your kind reply.
>
> Best regards,
> Xiaoxue
>
> On Sunday, June 16, 2019 at 1:35:05 AM UTC+8, Kenneth Lyons wrote:
>>
>> Hi Xiaoxue, it's hard to tell if this is a bug in pyqtgraph or possibly
>> something in your application code. Could you provide a bit more
>> information?
>>
>> - Python version and how it was installed (conda, python.org, system
>> package)
>> - PyQt4/PySide/PyQt5/PySide2 and how it was installed
>> - pyqtgraph version and how it was installed (if different from above)
>>
>> It would also be very helpful to have a minimal script that reproduces
>> the problem. Do any of the 3D examples in pyqtgraph have a similar problem
>> for you?
>>
>> On Friday, June 14, 2019 at 7:17:02 PM UTC-7, Xiaoxue Zhang wrote:
>>>
>>> Dear all,
>>>
>>> Thank you so much for your time.
>>>
>>> I have one problem when plotting 3D figure using PyQtGraph. The result
>>> only is in 1/4 of the whole window, shown as below.
>>>
>>> [image: Result.png]
>>>
>>> Anyone can help me to address this problem?
>>>
>>> Thanks. Look forward to any reply.
>>>
>>> Best Regards,
>>>
>>> Xiaoxue
>>>
>>
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