[PyX-devel] [ pyx-Bugs-986123 ] Axis labels look weird

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Bugs item #986123, was opened at 2004-07-06 20:01
Message generated for change (Comment added) made by wobsta
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=442886&aid=986123&group_id=45430

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Axis labels look weird

Initial Comment:
When I create an XY graph and specify an axis label that is more than one word long, sometimes the 
two words overlap. Here is ahat I have found so far:
(Axis label specified: What it looks like)

"X values" - Looks normal
"Y values" - Looks normal
"solution variable" - Two words overlap
"variable" - Looks normal
"variableABCDEFGHIJ" - Looks normal
"variable ABCDEFGHIJ" - Looks like: variabl***CDEF GHIJ (where the *** indicates where the "e" and 
"AB" overlap)
"solution-variable" - Looks normal
"solution_variable" - Gives the following error:
Traceback (most recent call last):
   ...
    mycanvas.writeEPSfile(filename)
  File "/users/mont/PyX-0.6.3/pyx/canvas.py", line 367, in writeEPSfile
    abbox = bbox is not None and bbox or self.bbox()
  File "/users/mont/PyX-0.6.3/pyx/canvas.py", line 129, in bbox
    abbox = cmd.bbox()
  File "/users/mont/PyX-0.6.3/pyx/deco.py", line 71, in bbox
    pbbox = self.path.bbox()
  File "/users/mont/PyX-0.6.3/pyx/graph/graph.py", line 418, in bbox
    self.finish()
  File "/users/mont/PyX-0.6.3/pyx/graph/graph.py", line 368, in finish
    self.domethods[0]()
  File "/users/mont/PyX-0.6.3/pyx/graph/graph.py", line 310, in dolayout
    axis.finish(self.axespos[key])
  File "/users/mont/PyX-0.6.3/pyx/graph/axis/axis.py", line 344, in finish
    ac = self.painter.paint(axispos, self)
  File "/users/mont/PyX-0.6.3/pyx/graph/axis/painter.py", line 486, in paint
    _title.paint(self, axispos, axis, ac=ac)
  File "/users/mont/PyX-0.6.3/pyx/graph/axis/painter.py", line 305, in paint
    title = self.texrunner.text_pt(x, y, axis.title, titleattrs)
  File "/users/mont/PyX-0.6.3/pyx/text.py", line 1133, in text_pt
    return self.text(unit.t_pt(x), unit.t_pt(y), expr, *args, **kwargs)
  File "/users/mont/PyX-0.6.3/pyx/text.py", line 1115, in text
    self.execute(expr, self.defaulttexmessagesdefaultrun + self.texmessagesdefaultrun + texmessages)
  File "/users/mont/PyX-0.6.3/pyx/text.py", line 944, in execute
    raise TexResultError("unhandled TeX response (might be an error)", self)
pyx.text.TexResultError: unhandled TeX response (might be an error)
The expression passed to TeX was:
  \ProcessPyXBox{\gdef\PyXHAlign{0.50000}\setbox0\hbox{$\vcenter{\vrule 
width0pt}$}\lower\ht0\hbox{{solution_variable}}%
  }{53}%
  \PyXInput{57}%
After parsing the return message from TeX, the following was left:
  *! Missing $ inserted.<inserted text>                 $<to be read again>                    _<argument> 
...h0pt}$}\lower \ht 0\hbox {{solution_
                   variable}}\ProcessPyXBox #1#2->\setbox \PyXBox =\hbox {{#1                                       
         }}\PyXDimenHAlignLT =\PyXHAl...<*> }{53}         %!
Extra }, or forgotten $.<argument> ...ower \ht 0\hbox {{solution_variable}                                               
   }\ProcessPyXBox #1#2->\setbox \PyXBox =\hbox {{#1
                                            }}\PyXDimenHAlignLT =\PyXHAl...<*> }{53}         %! Extra }, or forgotten 
$.<argument> ...wer \ht 0\hbox {{solution_variable}}
                                           \ProcessPyXBox #1#2->\setbox \PyXBox =\hbox {{#1                            
                    }}\PyXDimenHAlignLT =\PyXHAl...<*> }{53}         %! Extra }, or forgotten 
$.\ProcessPyXBox #1#2->\setbox \PyXBox =\hbox {{#1}                                                 
}\PyXDimenHAlignLT =\PyXHAl...<*> }{53}
       %! Extra }, or forgotten $.\ProcessPyXBox #1#2->\setbox \PyXBox =\hbox {{#1}}                           
                       \PyXDimenHAlignLT =\PyXHAl...<*> }{53}
    %

My e-mail address is ale...@ni...

----------------------------------------------------------------------

>Comment By: André Wobst (wobsta)
Date: 2004-07-07 08:18

Message:
Logged In: YES 
user_id=405853

I expect this problem to be related to the text output itself. Could you try 
to run hello.py, which can be found at the example directory. You may 
substitute the string "hello, world!" by something you used before 
("variable ABCDEFGHIJ") to reproduce your problem. In case you find the 
same behaviour it would be a much better suitable (e.g. minimal) 
example to further investigate your problem.

----------------------------------------------------------------------

Comment By: Gert Ingold (gertingold)
Date: 2004-07-07 07:36

Message:
Logged In: YES 
user_id=809523

I cannot reproduce the problem with "variable ABCDEFGHIJ" under
PyX 0.6.3. Do you have a minimal example?

The problem with "solution_variable" is not a PyX bug but
related
to TeX which expects the underscore in math mode where it would
indicate a subscript (see also FAQ 4.3.3). To avoid this
problem,
the underscore has to be escaped with a backslash, i.e. you
should
use "solution\_variable". See also FAQ 2.4 concerning the use
of raw strings in Python.

----------------------------------------------------------------------

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