Re: [matplotlib-devel] Polar Plot

[Eric F. <ef...@ha...>]

Sherif Ahmed wrote:
> Hello Eric,
> 
> I am afraid this does not work. I get error saying that :
> AttributeError: 'PolarAxes' object has no attribute 'set_resolution'


It looks like support for the resolution kwarg was added late in 
January, so you need either a more recent version, or an older version. 
  Unfortunately, it also looks like the latest release was before this 
change.

Maybe it is time for another release, either 0.98.5 maintenance or 
trunk. Or both. Releases are not my area, though.

Eric

> 
> The full error text is:
> -----------------------------------------
> Traceback (most recent call last):
>   File "D:\EmGine
> Project\emGine_GUI_0_7_5__11022009\emGine_GUI_0_7_5\emGineGUI\PlotSmith.py",
> line 287, in <module>
>     PlotSmith.plot_dummy()
>   File "D:\EmGine
> Project\emGine_GUI_0_7_5__11022009\emGine_GUI_0_7_5\emGineGUI\PlotSmith.py",
> line 241, in plot_dummy
>     self.plot_data(data1.real, data1.imag,freq1,'my first data')
>   File "D:\EmGine
> Project\emGine_GUI_0_7_5__11022009\emGine_GUI_0_7_5\emGineGUI\PlotSmith.py",
> line 144, in plot_data
>     self.axes = self.figure.add_axes([0.1,0.1,0.8,0.8], projection='polar',
> resolution = 1, aspect='equal')
>   File
> "c:\python25\lib\site-packages\matplotlib-0.98.3.0001-py2.5-win32.egg\matplo
> tlib\figure.py", line 615, in add_axes
>     a = projection_factory(projection, self, rect, **kwargs)
>   File
> "c:\python25\lib\site-packages\matplotlib-0.98.3.0001-py2.5-win32.egg\matplo
> tlib\projections\__init__.py", line 44, in projection_factory
>     return get_projection_class(projection)(figure, rect, **kwargs)
>   File
> "c:\python25\lib\site-packages\matplotlib-0.98.3.0001-py2.5-win32.egg\matplo
> tlib\projections\polar.py", line 171, in __init__
>     Axes.__init__(self, *args, **kwargs)
>   File
> "c:\python25\lib\site-packages\matplotlib-0.98.3.0001-py2.5-win32.egg\matplo
> tlib\axes.py", line 537, in __init__
>     if len(kwargs): martist.setp(self, **kwargs)
>   File
> "c:\python25\lib\site-packages\matplotlib-0.98.3.0001-py2.5-win32.egg\matplo
> tlib\artist.py", line 894, in setp
>     func = getattr(o,funcName)
> AttributeError: 'PolarAxes' object has no attribute 'set_resolution'
> 
> 
> -----------------------------------------
> 
> Do you know what is the reason behind this?
> 
> Thanks,
> Sherif
> 
> -----Original Message-----
> From: Eric Firing [mailto:ef...@ha...] 
> Sent: Thursday, March 19, 2009 11:39 PM
> To: Sherif Ahmed
> Cc: 'Michael Droettboom'; mat...@li...
> Subject: Re: [matplotlib-devel] Polar Plot
> 
> Sherif Ahmed wrote:
>> Hello Mike,
>>
>> Thanks for your advice. I think this is exactly what I need. I am not sure
>> how to use this option, might you help me?
>>
>> I use simply the following lines in my code:
>>
>> self.figure.clf()
>> self.axes = self.figure.add_axes([0.1,0.1,0.8,0.8], projection='polar',
>      resolution=1,
>> aspect='equal')
>>
>> and later:
>> self.axes.plot(angle(data),abs(data),label=title,linewidth = 2,zorder=10)
>>
>> Where should I change the resolution feature? With each plot or with
> figure
>> object?
> 
> Put the resolution kwarg in the call to the add_axes method.  The way 
> the line is drawn between points--whether as a straight line on the plot 
> or by interpolating in the data coordinates--is controlled on a per-axes 
> basis by this kwarg when the axes are created.
> 
> Eric
>