> 1) We kluged a fix by manually adding get_xdata and get_ydata methods to
> our derived class, but a) this seems like it shouldn't be necessary, and
> b) it wasn't necessary before;
> 2) Chris' hypothesis is that it has something to do w/ the work being
> done on matplotlib to add units to data objects (please correct me if
> I'm wrong, Chris) but is uncertain of precisely how or why, and wasn't
> readily able to pin it down more than that;
The traceback gave me this hint (see below):
The error comes when axis.clear() is called, inside:
self.set_units(None)
so I thought it might have to do with the unit stuff. The error is really:
in set_units
self.callbacks.process('units finalize')
in process
func(*args, **kwargs)
in relim
self._update_line_limits(line)
and that's where it wants the LineCollection to have get_xdata
What's really odd about this is that we're clearing the axis - the
LineCollection should be irrelevant then!
I do remember something with the auto-limits and LineCollections when I
first started messing with this, but I don't remember what.
Sorry we haven't been able to duplicate this in a small sample yet.
Anyone have any ideas?
-Chris
Here's the whole traceback:
Traceback (most recent call last):
File "/Users/cbarker/HAZMAT/3d/TABS/TabsDataPanels.py", line 688, in
PlotProfile
int(self.DataSelector.BotBin) )
File "/Users/cbarker/HAZMAT/3d/TABS/TabsDataPanels.py", line 351, in
PlotProfile
ax.clear()
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axes.py",
line 725, in clear
self.cla()
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axes.py",
line 670, in cla
self.xaxis.cla()
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axis.py",
line 563, in cla
self.set_units(None)
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axis.py",
line 859, in set_units
self.callbacks.process('units finalize')
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/cbook.py",
line 83, in process
func(*args, **kwargs)
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axes.py",
line 1104, in relim
self._update_line_limits(line)
File
"/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/axes.py",
line 1064, in _update_line_limits
xdata = line.get_xdata(orig=False)
AttributeError: VectorLineCollection instance has no attribute 'get_xdata'
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
[EMAIL PROTECTED]
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