Hi Florent, Federic, ... !

I have some trouble with the latex or pdf viewing of LabelledBinaryTrees:

sage: X = LabelledBinaryTree([], label=0)
sage: Y = LabelledBinaryTree([], label=1)
sage: YYX = LabelledBinaryTree([Y,X], label=1)
sage: Lf = LabelledBinaryTree([YYX,YYX], label=0)
sage: Rf = LabelledBinaryTree([YYX,YYX], label=1)
sage: f = LabelledBinaryTree([Lf,Rf], label=0)
sage: ff = LabelledBinaryTree([f,f],label=1)

Now

sage: view(f,tightpage=True)

works fine but

sage: view(ff,tightpage=True)

gives an error message (see below).

Does anyone know how to fix this?

Thanks,

Anne

(1) Latex Error:

Preview: Fontsize 10pt
Preview: PDFoutput 1
LaTeX Font Info:    Try loading font information for U+msa on input line 41.
(/usr/local/texlive/2008/texmf-dist/tex/latex/amsfonts/umsa.fd
File: umsa.fd 2002/01/19 v2.2g AMS font definitions
)
LaTeX Font Info:    Try loading font information for U+msb on input line 41.

(/usr/local/texlive/2008/texmf-dist/tex/latex/amsfonts/umsb.fd
File: umsb.fd 2002/01/19 v2.2g AMS font definitions
)
LaTeX Font Info:    Try loading font information for U+rsfs on input line 41.

(/usr/local/texlive/2008/texmf-dist/tex/latex/jknapltx/ursfs.fd
File: ursfs.fd 1998/03/24 rsfs font definition file (jk)
)

! LaTeX Error: Bad \line or \vector argument.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l.102 \put(16,5){\line(-8,-1){8}}

You've lost some text.  Try typing  <return>  to proceed.
If that doesn't work, type  X <return>  to quit.


! LaTeX Error: Bad \line or \vector argument.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l.103 \put(16,5){\line(8,-1){8}}

You've lost some text.  Try typing  <return>  to proceed.
If that doesn't work, type  X <return>  to quit.

Preview: Tightpage -32891 -32891 32891 32891
[1{/usr/local/texlive/2008/texmf-var/fonts/map/pdftex/updmap/pdftex.map}]
(./sage.aux) )
Here is how much of TeX's memory you used:
 8641 strings out of 493876
 144792 string characters out of 1150567
 189665 words of memory out of 3000000
 11735 multiletter control sequences out of 10000+50000
 8140 words of font info for 28 fonts, out of 3000000 for 5000
 714 hyphenation exceptions out of 8191
 48i,8n,49p,334b,148s stack positions out of 5000i,500n,10000p,200000b,50000s
</usr/local/texlive/2008/texmf-dist/fonts/type1/bluesky/cm/cmr7.p
fb></usr/local/texlive/2008/texmf-dist/fonts/type1/bluesky/latex-fonts/lcircle1
.pfb></usr/local/texlive/2008/texmf-dist/fonts/type1/bluesky/latex-fonts/line10
.pfb>
Output written on sage.pdf (1 page, 9031 bytes).
PDF statistics:
 21 PDF objects out of 1000 (max. 8388607)
 0 named destinations out of 1000 (max. 131072)
 13 words of extra memory for PDF output out of 10000 (max. 10000000)


Latex error

(2) Latex output

sage: print ff._latex_()
\vcenter{\hbox{{\setlength\unitlength{4mm}
\begin{picture}(33,6)
\put(1,1){\circle*{0.5}}
\put(1.3,0.7){$\scriptstyle 1$}\put(2,2){\circle*{0.5}}
\put(2.3,1.7){$\scriptstyle 1$}\put(3,1){\circle*{0.5}}
\put(3.3,0.7){$\scriptstyle 0$}\put(2,2){\line(-1,-1){1}}
\put(2,2){\line(1,-1){1}}
\put(4,3){\circle*{0.5}}
\put(4.3,2.7){$\scriptstyle 0$}\put(5,1){\circle*{0.5}}
\put(5.3,0.7){$\scriptstyle 1$}\put(6,2){\circle*{0.5}}
\put(6.3,1.7){$\scriptstyle 1$}\put(7,1){\circle*{0.5}}
\put(7.3,0.7){$\scriptstyle 0$}\put(6,2){\line(-1,-1){1}}
\put(6,2){\line(1,-1){1}}
\put(4,3){\line(-2,-1){2}}
\put(4,3){\line(2,-1){2}}
\put(8,4){\circle*{0.5}}
\put(8.3,3.7){$\scriptstyle 0$}\put(9,1){\circle*{0.5}}
\put(9.3,0.7){$\scriptstyle 1$}\put(10,2){\circle*{0.5}}
\put(10.3,1.7){$\scriptstyle 1$}\put(11,1){\circle*{0.5}}
\put(11.3,0.7){$\scriptstyle 0$}\put(10,2){\line(-1,-1){1}}
\put(10,2){\line(1,-1){1}}
\put(12,3){\circle*{0.5}}
\put(12.3,2.7){$\scriptstyle 1$}\put(13,1){\circle*{0.5}}
\put(13.3,0.7){$\scriptstyle 1$}\put(14,2){\circle*{0.5}}
\put(14.3,1.7){$\scriptstyle 1$}\put(15,1){\circle*{0.5}}
\put(15.3,0.7){$\scriptstyle 0$}\put(14,2){\line(-1,-1){1}}
\put(14,2){\line(1,-1){1}}
\put(12,3){\line(-2,-1){2}}
\put(12,3){\line(2,-1){2}}
\put(8,4){\line(-4,-1){4}}
\put(8,4){\line(4,-1){4}}
\put(16,5){\circle*{0.5}}
\put(16.3,4.7){$\scriptstyle 1$}\put(17,1){\circle*{0.5}}
\put(17.3,0.7){$\scriptstyle 1$}\put(18,2){\circle*{0.5}}
\put(18.3,1.7){$\scriptstyle 1$}\put(19,1){\circle*{0.5}}
\put(19.3,0.7){$\scriptstyle 0$}\put(18,2){\line(-1,-1){1}}
\put(18,2){\line(1,-1){1}}
\put(20,3){\circle*{0.5}}
\put(20.3,2.7){$\scriptstyle 0$}\put(21,1){\circle*{0.5}}
\put(21.3,0.7){$\scriptstyle 1$}\put(22,2){\circle*{0.5}}
\put(22.3,1.7){$\scriptstyle 1$}\put(23,1){\circle*{0.5}}
\put(23.3,0.7){$\scriptstyle 0$}\put(22,2){\line(-1,-1){1}}
\put(22,2){\line(1,-1){1}}
\put(20,3){\line(-2,-1){2}}
\put(20,3){\line(2,-1){2}}
\put(24,4){\circle*{0.5}}
\put(24.3,3.7){$\scriptstyle 0$}\put(25,1){\circle*{0.5}}
\put(25.3,0.7){$\scriptstyle 1$}\put(26,2){\circle*{0.5}}
\put(26.3,1.7){$\scriptstyle 1$}\put(27,1){\circle*{0.5}}
\put(27.3,0.7){$\scriptstyle 0$}\put(26,2){\line(-1,-1){1}}
\put(26,2){\line(1,-1){1}}
\put(28,3){\circle*{0.5}}
\put(28.3,2.7){$\scriptstyle 1$}\put(29,1){\circle*{0.5}}
\put(29.3,0.7){$\scriptstyle 1$}\put(30,2){\circle*{0.5}}
\put(30.3,1.7){$\scriptstyle 1$}\put(31,1){\circle*{0.5}}
\put(31.3,0.7){$\scriptstyle 0$}\put(30,2){\line(-1,-1){1}}
\put(30,2){\line(1,-1){1}}
\put(28,3){\line(-2,-1){2}}
\put(28,3){\line(2,-1){2}}
\put(24,4){\line(-4,-1){4}}
\put(24,4){\line(4,-1){4}}
\put(16,5){\line(-8,-1){8}}
\put(16,5){\line(8,-1){8}}
\put(16,5){\circle*{0.7}}
\end{picture}}}}

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