obspy.imaging.waveform: ValueError: zero-size array to ufunc.reduce without identity

[trac2github]

{{{

import obspy
from obspy.seishub.client import Client
c = Client("http://teide.geophysik.uni-muenchen.de:8080")
start = obspy.UTCDateTime(2008,1,1,12,00,00)
end = start + 10
st = c.waveform.getWaveform("BW", "MANZ", "", "_", start, end)
Enter username for SeisHub at teide.geophysik.uni-muenchen.de:8080: admin
Enter password for admin in SeisHub at teide.geophysik.uni-muenchen.de:8080:
st.plot()
Traceback (most recent call last):
File "", line 1, in
File "c:\users\robert\workspace\obspy\obspy.core\trunk\obspy\core\stream.py", line 306, in plot
waveform.plotWaveform(self, *_kwargs)
File "c:\users\robert\workspace\obspy\obspy.imaging\trunk\obspy\imaging\waveform.py", line 119, in plotWaveform
endtime=endtime)
File "c:\users\robert\workspace\obspy\obspy.imaging\trunk\obspy\imaging\waveform.py", line 379, in _getMinMaxList
maxlist.append(_i.data[int(start) : int(end)].max())
ValueError: zero-size array to ufunc.reduce without identity
}}}

[trac2github]

[krischer](In [577]) - add method for Traces and therefore all depending methods like merge, ... now return a masked array if it contains NaNs. In addition it now set the stats.npts attribute to the number of samples in the Trace excluding NaNs. Please check whether it breaks anything.

• This required some changes in Trace methods (e.g. the len(Trace) now returns the number of not masked samples) and also some changes in the tests.
• obspy.imaging.waveform now hopefully plots whatever you throw at it (closes Waveform plotting of short seismograms #5 and obspy.imaging.waveform: ValueError: zero-size array to ufunc.reduce without identity #8). I already did a lot of tests but it got pretty complicated so please help testing. Especially look at the scaling of the y-axis, the number of samples in the top right corner and whether all samples are plotted.
• Removed waveform tests from the genereal obspy.core.testing because they now take too long.