Plot copy function showing unexpected error

[Ankit Kakkar]

Hi,

I am working with PlotWidgets for my project. I need to be able to copy and paste charts. For this I make use of the export functionality. I was able to copy-paste charts previously but now it shows the following error (when I click on copy):

Traceback (most recent call last):


  File "C:\ProgramData\Anaconda2\lib\site-packages\pyqtgraph\GraphicsScene\exportDialog.py", line 136, in copyClicked
    self.currentExporter.export(copy=True)


  File "C:\ProgramData\Anaconda2\lib\site-packages\pyqtgraph\exporters\ImageExporter.py", line 70, in export
    bg = np.empty((self.params['width'], self.params['height'], 4), dtype=np.ubyte)


TypeError: 'float' object cannot be interpreted as an index

Not sure why this error is coming even if the width and height params are int.

Does anyone know what is the reason for it? Shared the Sample code below:

           

w2 = pg.PlotWidget()
w2.addLegend()
axis2 = daxis.DateAxisItem(orientation = 'bottom')
axis2.attachToPlotItem(w2.getPlotItem())
idx2 = abc.index[lookback2+1:]
df2 = pd.DataFrame.from_dict(idx2)
timestamps2 = list(pd.to_timedelta(df2[0]).dt.total_seconds().astype(int))
w2.plot(x = timestamps2, y = list(100*abc.iloc[lookback2+1:]), name = "ABC", pen = 'b')
w2.plot(x = timestamps2, y = list(100*def.iloc[lookback2+1:]), name = "DEF", pen = 'r')
w2.plot(x = timestamps2, y = list(ijk.iloc[lookback2+1:,0]), pen = 'r')
w2.setLabel('left', 'ABC', units='%')
w2.setLabel('right', 'DEF', units='%')
self.ui.verticalLayout2.addWidget(w2)

[Ankit Kakkar]

Similar post: https://groups.google.com/d/topic/pyqtgraph/eb3JUdnWTZQ/discussion

However, changing the library modules is not an option for everyone. Is there any other way?

[Luke Campagnola]

I believe this has already been fixed, but not released. Have you tried the latest from github?

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