Hi Tiago,
I am on Ubuntu 16.04 and today I updated from git: '2.23 (commit b669e1b7,
Sun Sep 24 00:01:08 2017 +0200)'.
Till now, I was at least able to draw two graphs in two subplots as said in
my previous email. However, today even that is not working. My code:
import graph_tool.all as gt
import matplotlib.pyplot as plt
plt.switch_backend('cairo')
g1 = gt.collection.data['karate']
g2 = gt.collection.data['dolphins']
ax = plt.subplot(1, 2, 1)
gt.graph_draw(g1, mplfig = ax)
ax = plt.subplot(1, 2, 2)
gt.graph_draw(g2, mplfig = ax)
ax = plt.subplot(2, 2, 3)
plt.savefig('test.pdf')
I get the following error:
Traceback (most recent call last):
File "test.py", line 20, in <module>
plt.savefig('abc.pdf')
File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 688, in
savefig
res = fig.savefig(*args, **kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/figure.py", line 1565, in
savefig
self.canvas.print_figure(*args, **kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/backend_bases.py", line
2232, in print_figure
**kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/backends/backend_cairo.py",
line 448, in print_pdf
return self._save(fobj, 'pdf', *args, **kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/backends/backend_cairo.py",
line 512, in _save
self.figure.draw (renderer)
File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/figure.py", line 1159, in
draw
func(*args)
File "/usr/lib/python3/dist-packages/matplotlib/artist.py", line 61, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/axes/_base.py", line
2324, in draw
a.draw(renderer)
File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py", line
1570, in draw
self.vorder, self.eorder, self.nodesfirst, self.kwargs)
File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py", line
692, in cairo_draw
vdefs = _attrs(_vdefaults, "v", g, vcmap)[1]
File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py", line
486, in _attrs
defaults[int(attr)] = _convert(attr, v, cmap)
File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py", line
323, in _convert
cmap, alpha = cmap
ValueError: not enough values to unpack (expected 2, got 0)
I tried looking into "cairo_darw.py" but couldn't locate the problem. I
think that it might have something to do with the default color map
default_cm but I am not sure about it. Can you kindly help me with this?
Thank you
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