I can't reproduce the error and I guess it is back end specific.
Anyhow, the fontproperties object were created incorrectly and this
may be cause of the problem. I just thought your original dictionary
was in a correct form.
So, test your code w/o fontproperties and see if your text is placed
in a correct position. Then you need to create the fontproperties in a
correct way.
Please take a look at FontProperties document and revise your code accordingly.
It should be something like
FontProperties(weight="light", size=fontsize)
There is no fontweight keyword. And the color needs to be specified as
a parameters of the text function.
I don't have much clue on how font selection work in the mpl, but you
may need some tweaking on that.
Regards,
-JJ
On Tue, Jan 6, 2009 at 12:46 PM, Michael Hearne <mhea...@usgs.gov> wrote:
> Jae-Joon - Thank you for your suggestion. I wasn't aware I needed the
> alignments.
>
> However, when I try your sample code in my script, I get a sequence of
> rendering errors if I use show() or savefig():
>
> Traceback (most recent call last):
> File
> "/Library/Python/2.5/site-packages/matplotlib-0.98.5.1-py2.5-macosx-10.5-i386.egg/matplotlib/figure.py",
> line 772, in draw
> for a in self.axes: a.draw(renderer)
> File
> "/Library/Python/2.5/site-packages/matplotlib-0.98.5.1-py2.5-macosx-10.5-i386.egg/matplotlib/axes.py",
> line 1601, in draw
> a.draw(renderer)
> File
> "/Library/Python/2.5/site-packages/matplotlib-0.98.5.1-py2.5-macosx-10.5-i386.egg/matplotlib/text.py",
> line 450, in draw
> bbox, info = self._get_layout(renderer)
> File
> "/Library/Python/2.5/site-packages/matplotlib-0.98.5.1-py2.5-macosx-10.5-i386.egg/matplotlib/text.py",
> line 246, in _get_layout
> 'lp', self._fontproperties, ismath=False)
> File
> "/Library/Python/2.5/site-packages/matplotlib-0.98.5.1-py2.5-macosx-10.5-i386.egg/matplotlib/backends/backend_macosx.py",
> line 123, in get_text_width_height_descent
> return self.gc.get_text_width_height_descent(unicode(s), family, size,
> weight, style)
> RuntimeError: ATSUSetAttributes failed
>
> My new script is below:
> #!/usr/bin/env python
> import matplotlib
> import numpy as np
> import matplotlib.cm as cm
> import matplotlib.mlab as mlab
> import matplotlib.pyplot as plt
> import math
>
> matplotlib.rcParams['xtick.direction'] = 'out'
> matplotlib.rcParams['ytick.direction'] = 'out'
>
> delta = 0.025
> x = np.arange(-3.0, 3.0, delta)
> y = np.arange(-2.0, 2.0, delta)
> X, Y = np.meshgrid(x, y)
> Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
> Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
> # difference of Gaussians
> Z = 10.0 * (Z2 - Z1)
>
> f=plt.figure(facecolor='g')
> ax = plt.gca()
> ax.set_axis_bgcolor('g')
> CS = plt.contour(X, Y, Z)
> xt = plt.xticks()
> yt = plt.yticks()
>
> fontsize = 10
> fontdict2 = {'fontweight':'light',
> 'color': 'r',
> 'fontsize':fontsize}
> fp = matplotlib.font_manager.FontProperties(fontdict2)
>
> labels = plt.clabel(CS, inline=1, fontsize=fontsize,colors='k')
> for label in labels:
> ltext = label.get_text()
> lx,ly = label.get_position()
> lrot=label.get_rotation()
> va, ha = label.get_va(), label.get_ha()
> t = plt.text(lx,ly,ltext, fontproperties=fp,
> rotation=lrot,va=va, ha=ha)
>
> plt.savefig('output.png')
>
> Jae-Joon Lee wrote:
>>
>> I guess you're missing vertical and horizontal alignment.
>> Also, your font properties were not set correctly. The 4th argument of
>> the text function is a color.
>>
>>
>> fontdict2 = {'fontweight':'light',
>> 'color': 'r',
>> 'fontsize':fontsize}
>> fp = FontProperties(fontdict2)
>>
>> labels = plt.clabel(CS, inline=1, fontsize=fontsize,colors='k')
>> for label in labels:
>> ltext = label.get_text()
>> lx,ly = label.get_position()
>> lrot=label.get_rotation()
>> va, ha = label.get_va(), label.get_ha()
>> t = plt.text(lx,ly,ltext, fontproperties=fp,
>> rotation=lrot,va=va, ha=ha)
>>
>> You may simply use update_from() method.
>>
>> Anyhow, I'm not sure if you can put dorpshadow effect this way.
>> Changing font weight usually changes the overall size of each glyph.
>>
>> Regards,
>>
>> -JJ
>>
>>
>> On Tue, Jan 6, 2009 at 10:20 AM, Michael Hearne <mhea...@usgs.gov> wrote:
>>
>>>
>>> Is the list of return values from the clabel() function supposed to
>>> represent the position and orientation of the contour labels? I have a
>>> script below where I try to re-draw the contour labels using the Text
>>> objects in the list returned from clabel(), and they do not line up in
>>> my output. I'm using Matplotlib version 0.98.5.1, revision 6622.
>>>
>>> If this is intentional, is there some way of retrieving the actual
>>> position/orientation of the contour labels? I'm trying to make a
>>> drop-shadow effect for those labels, and I need to know where they are
>>> exactly for my code to work.
>>>
>>> Sample script:
>>> #!/usr/bin/env python
>>> import matplotlib
>>> import numpy as np
>>> import matplotlib.cm as cm
>>> import matplotlib.mlab as mlab
>>> import matplotlib.pyplot as plt
>>> import math
>>>
>>> matplotlib.rcParams['xtick.direction'] = 'out'
>>> matplotlib.rcParams['ytick.direction'] = 'out'
>>>
>>> delta = 0.025
>>> x = np.arange(-3.0, 3.0, delta)
>>> y = np.arange(-2.0, 2.0, delta)
>>> X, Y = np.meshgrid(x, y)
>>> Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
>>> Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
>>> # difference of Gaussians
>>> Z = 10.0 * (Z2 - Z1)
>>>
>>> f=plt.figure(facecolor='g')
>>> ax = plt.gca()
>>> ax.set_axis_bgcolor('g')
>>> CS = plt.contour(X, Y, Z)
>>> xt = plt.xticks()
>>> yt = plt.yticks()
>>>
>>> fontsize = 10
>>> fontdict2 = {'fontweight':'light',
>>> 'color': 'r',
>>> 'fontsize':fontsize}
>>> labels = plt.clabel(CS, inline=1, fontsize=fontsize,colors='k')
>>> for label in labels:
>>> ltext = label.get_text()
>>> lrot = label.get_rotation()
>>> lx,ly = label.get_position()
>>> plt.text(lx,ly,ltext,fontdict2,rotation=lrot)
>>>
>>> plt.savefig('output.png')
>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Matplotlib-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>
>>>
>
>
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