When I attempt to use a ∈ in a label, I get the following error message:
File "apply-rules.py", line 25
SyntaxError: Non-ASCII character '\xe2' in file apply-rules.py on line 25, but
no encoding declared; see for details
When I include
# coding=utf-8
at the beginning, and when I use u"∈" in the code
then I get the following message:
Traceback (most recent call last):
File "apply-rules.py", line 474, in <module>
execfile("rules.py")
File "rules.py", line 13, in <module>
signature=['204:6', '20456:4', '2045654:4', '45654:2', '456:2', '654:2',
'2:3', '4:3', '6:1']
File "apply-rules.py", line 293, in apply_edge_rule
r=att_edge(q,KNOWN[ms[0][0]],KNOWN[ms[0][5]],globals()[ms[0][3]])
File "apply-rules.py", line 352, in att_edge
g.ep['labele'][res]=str(g.vp['labelv'][a])+"_"+EDGE_LABEL[val]+"_"+str(g.vp['labelv'][b])
File "/usr/local/lib/python2.7/site-packages/graph_tool/__init__.py", line
490, in __setitem__
self.__map[key] = self.__convert(v)
File "/usr/local/lib/python2.7/site-packages/graph_tool/__init__.py", line
254, in convert
return vtype(val)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2208' in position
3: ordinal not in range(128)
So the problem is not yet how to make the symbol appear in graphviz output, but
how to make the Python code run…
> Le 28 oct. 2015 à 15:44, Tiago de Paula Peixoto <[email protected]> a écrit :
>
> On 28.10.2015 15:35, Yannis Haralambous wrote:
>> dear all,
>>
>> I would like to use math symbols (such as ∈, ⊆ and ∡) and Greek letters into
>> labels (vertex properties and edge properties), so that they can appear in
>> graph-tool-made or graphviz-made graphs.
>>
>> How can I use graph-tool in a Unicode-compliant way?
>
> It should work out of the box. You just need to use a font family that
> has the necessary glyphs. For instance, for me the following works:
>
> graph_draw(g, vertex_text="∈", vertex_font_family="Bitstream Vera Sans")
>
> Best,
> Tiago
>
> --
> Tiago de Paula Peixoto <[email protected]>
>
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--
-------------------------------------------------------
Yannis Haralambous
Professor
Institut Mines-Télécom, Télécom Bretagne
Computer Science Department
UMR CNRS 6285 Lab-STICC
Technopôle Brest Iroise
CS 83818, 29238 Brest Cedex 3, France
Email: [email protected]
Internet: http://perso.telecom-bretagne.eu/yannisharalambous/
ICBM address: 48°21'31.57"N 4°34'16.76"W
Twitter: y_haralambous
-------------------------------------------------------
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has not yet reached the ground
(Dylan Thomas)
Es gab eine Zeit, wo ich nur ungern über Schubert sprechen,
nur Nächtens den Bäumen und Sternen von ihm vorerzählen mögen.
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