Hi, I'm running into the following error:
findfont: Matching
:family=sans-serif:style=normal:variant=normal:weight=normal:stretch=normal:size=medium
to Bitstream Vera Sans (/usr/X11R6/lib/X11/fonts/TTF/Vera.ttf) with
score of 0.000000
Found dvipng version 1.11
findfont: Matching
:family=sans-serif:style=normal:variant=normal:weight=normal:stretch=normal:size=large
to Bitstream Vera Sans (/usr/X11R6/lib/X11/fonts/TTF/Vera.ttf) with
score of 0.000000
Exception in Tkinter callback
Traceback (most recent call last):
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk/Tkinter.py",
line 1410, in __call__
return self.func(*args)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_tkagg.py",
line 212, in resize
self.show()
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_tkagg.py",
line 215, in draw
FigureCanvasAgg.draw(self)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py",
line 388, in draw
self.figure.draw(self.renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/figure.py",
line 772, in draw
for a in self.axes: a.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axes.py",
line 1760, in draw
a.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/legend.py",
line 389, in draw
self._legend_box.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 504, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 530, in draw
drawFunc(renderer, gc, tpath, affine.frozen())
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 866, in _draw_lines
self._lineFunc(renderer, gc, path, trans)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 917, in _draw_dashed
renderer.draw_path(gc, path, trans)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py",
line 117, in draw_path
self._renderer.draw_path(gc, path, transform, rgbFace)
TypeError: float() argument must be a string or a number
Exception in Tkinter callback
Traceback (most recent call last):
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk/Tkinter.py",
line 1410, in __call__
return self.func(*args)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_tkagg.py",
line 212, in resize
self.show()
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_tkagg.py",
line 215, in draw
FigureCanvasAgg.draw(self)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py",
line 388, in draw
self.figure.draw(self.renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/figure.py",
line 772, in draw
for a in self.axes: a.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axes.py",
line 1760, in draw
a.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/legend.py",
line 389, in draw
self._legend_box.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 240, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/offsetbox.py",
line 504, in draw
c.draw(renderer)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *kl)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 530, in draw
drawFunc(renderer, gc, tpath, affine.frozen())
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 866, in _draw_lines
self._lineFunc(renderer, gc, path, trans)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/lines.py",
line 917, in _draw_dashed
renderer.draw_path(gc, path, trans)
File
"/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py",
line 117, in draw_path
self._renderer.draw_path(gc, path, transform, rgbFace)
TypeError: float() argument must be a string or a number
Using the following code:
from pylab import *
import numpy,scipy,matplotlib;
h=6.626e-27
c=3e10
nu=3e18/5500.
k=1.38e-16
T=6000
mynu=linspace(1e13,10**15.2,100000)
dnu = mean(mynu[1:]-mynu[:-1])
planck = 2*h*mynu**3/c**2 * (exp(h*mynu/(k*T))-1)**-1
mylam=linspace(1500e-8,5e-4,100000)
dlam = mean(mylam[1:]-mylam[:-1])
planckL=2*h*c**2/mylam**5*(exp(h*c/(mylam*k*T))-1)**-1; planckLn =
planckL* planck.max()/planckL.max()
figure(0); clf(); loglog(mynu,planck,label=r'$\nu$')
plot(3e10/mylam,planckLn,label=r'$\lambda$')
xlabel(r'$\nu$')
ylabel(r'$B_\nu$')
vlines(3e10/5500e-8,1e-7,1e-4)
vlines(3e10/6000e-8,1e-7,1e-4,linestyle='--')
vlines(3e10/5000e-8,1e-7,1e-4,linestyle='--')
legend(loc='best')
figure(1); clf()
loglog(mynu,planck*mynu,label=r'$\nu$')
plot(3e10/mylam,planckL*mylam,label=r'$\lambda$')
vlines(3e10/5500e-8,1e6,2e10)
vlines(3e10/6000e-8,1e6,2e10,linestyle='--')
vlines(3e10/5000e-8,1e6,2e10,linestyle='--')
xlabel(r'$\nu = c / \lambda$')
ylabel(r'$\nu B_\nu = \lambda B_\lambda$')
legend(loc='best')
lamlow = 5000e-8
lamhi = 6000e-8
nulow = 3e10/lamhi
nuhi = 3e10/lamlow
whnu = (mynu<nuhi)*(mynu>nulow)
whlam = (mylam<lamhi)*(mylam>lamlow)
int_nu = (planck[whnu]*dnu).sum()
int_lam = (planckL[whlam]*dlam).sum()
print "int_nu = %g" % (int_nu)
print "int_lam = %g" % (int_lam)
show()
The error only happens when I use a legend; i.e. there is no error
when the legend() lines are commented out. I've only explored a
little parameter space but it still happens without latex in the
labels and when I use a linear-linear plot.
Adam
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