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

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Bugs item #986123, was opened at 2004-07-06 18:01
Message generated for change (Comment added) made by gertingold
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: Gert Ingold (gertingold)
Date: 2004-07-07 05:36

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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