#15225: dot2tex breaks Poset.show()
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Reporter: jmantysalo | Owner:
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-5.13
Component: packages: optional | Resolution:
Keywords: poset, dot2tex | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues: fix dot2tex
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by strogdon):
The ValueError/AttributeError disappears for me if I include the
[https://code.google.com/p/dot2tex/source/diff?spec=svn681c5a92ec1604f6810dbe88b916f082a4ed6a44&old=7395e5a250800a174c86e3b9bf9435ca5d7618ef&r=681c5a92ec1604f6810dbe88b916f082a4ed6a44&format=unidiff&path=%2Fdot2tex%2Fdot2tex.py
dot2tex patch] which seems to be present in the spkg(s) at ticket #14408.
However, perhaps the real issue is that {{{prog='dot'}}} returns sometimes
ints and sometimes floats for the positions. For example, with the patch:
{{{
sage: import dot2tex
sage: AA = 'digraph {\n "0" [label="0"];\n "1" [label="1"];\n "2"
[label="2"];\n "3" [label="3"];\n "4" [label="4"];\n "5" [label="5"];\n
"6" [label="6"];\n "7" [label="7"];\n "8" [label="8"];\n "9"
[label="9"];\n "10" [label="10"];\n\nedge [color="black"];\n "0" ->
"1";\n "0" -> "3";\n "0" -> "6";\n "1" -> "2";\n "1" -> "5";\n "2" ->
"7";\n "3" -> "4";\n "3" -> "8";\n "4" -> "5";\n "5" -> "9";\n "6" ->
"7";\n "6" -> "8";\n "7" -> "9";\n "8" -> "9";\n}'
sage: dot2tex.dot2tex(AA, format="positions", prog="dot")
{'0': [113.39, 315.0],
'1': [41.39, 241.0],
'10': [185.39, 315.0],
'2': [41.39, 167.0],
'3': [113.39, 241.0],
'4': [113.39, 167.0],
'5': [113.39, 93.0],
'6': [185.39, 241.0],
'7': [231.39, 93.0],
'8': [185.39, 167.0],
'9': [176.39, 19.0]}
sage: BB = 'digraph {\n "0" [label="0"];\n "1" [label="1"];\n "2"
[label="2"];\n "3" [label="3"];\n "4" [label="4"];\n "5" [label="5"];\n
"6" [label="6"];\n "7" [label="7"];\n "8" [label="8"];\n "9"
[label="9"];\n "10" [label="10"];\n\nedge [color="black"];\n "0" ->
"1";\n "0" -> "3";\n "0" -> "6";\n "1" -> "2";\n "1" -> "5";\n "2" ->
"7";\n "3" -> "4";\n "3" -> "8";\n "4" -> "5";\n "5" -> "9";\n "6" ->
"7";\n "6" -> "8";\n "7" -> "9";\n}'
sage: dot2tex.dot2tex(BB, format="positions", prog="dot")
{'0': [137, 315],
'1': [209, 241],
'10': [209, 315],
'2': [247, 167],
'3': [65, 241],
'4': [27, 167],
'5': [128, 93],
'6': [137, 241],
'7': [200, 93],
'8': [99, 167],
'9': [164, 19]}
}}}
The first example gives a ValueError without the patch. This can be
reproduced from python, so it's not Sage-specific. I suppose what's
returned by {{{prog='dot'}}} should either be always ints or always floats
for the positions, but I'm not sure whether the present situation is a bug
or a feature, nor is it clear to me which calls in dot2tex produce these
values.
--
Ticket URL: <http://trac.sagemath.org/ticket/15225#comment:16>
Sage <http://www.sagemath.org>
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