def view(self):
if not self._viewer is None:
viewer = self._viewer
else:
viewer = dvi_viewer()
self._build()
F = os.path.splitext(self._filename)[0] + ".dvi"
cmd = "cd %s; %s %s " % (self._dir, viewer, F)
os.system(cmd + " 2>/dev/null 1>/dev/null &")
def view(self):
if not self._viewer is None:
viewer = self._viewer
else:
viewer = dvi_viewer()
self._build()
F = os.path.splitext(self._filename)[0] + '.dvi'
cmd = 'cd %s; %s %s ' % (self._dir, viewer, F)
os.system(cmd + " 2>/dev/null 1>/dev/null &")
def view(objects, title='SAGE', debug=False, sep='', tiny=False, **kwds):
r"""nodetex
Compute a latex representation of each object in objects, compile,
and display typeset. If used from the command line, this requires
that latex be installed.
INPUT:
- ``objects`` - list (or object)
- ``title`` - string (default: 'Sage'): title for the
document
- ``debug`` - bool (default: False): print verbose
output
- ``sep`` - string (default: ''): separator between
math objects
- ``tiny`` - bool (default: False): use tiny font.
OUTPUT: Display typeset objects.
This function behaves differently depending on whether in notebook
mode or not.
If not in notebook mode, this opens up a window displaying a dvi
(or pdf) file, displaying the following: the title string is
printed, centered, at the top. Beneath that, each object in objects
is typeset on its own line, with the string sep inserted between
these lines.
The value of ``sep`` is inserted between each element of the list
``objects``; you can, for example, add vertical space between
objects with ``sep='\\vspace{15mm}'``, while ``sep='\\hrule'``
adds a horizontal line between objects, and ``sep='\\newpage'``
inserts a page break between objects.
If in notebook mode, this uses jmath to display the output in the
notebook. Only the first argument, objects, is relevant; the others
are ignored. If objects is a list, the result is typeset as a
Python list, e.g. [12, -3.431] - each object in the list is not
printed on its own line.
EXAMPLES::
sage: sage.misc.latex.EMBEDDED_MODE=True
sage: view(3)
<html><span class="math">3</span></html>
sage: sage.misc.latex.EMBEDDED_MODE=False
"""
if EMBEDDED_MODE:
print typeset(objects)
return
if isinstance(objects, LatexExpr):
s = str(objects)
else:
s = _latex_file_(objects, title=title, debug=debug, sep=sep, tiny=tiny)
from sage.misc.viewer import dvi_viewer
viewer = dvi_viewer()
tmp = tmp_dir('sage_viewer')
open('%s/sage.tex'%tmp,'w').write(s)
os.system('ln -sf %s/common/macros.tex %s'%(SAGE_DOC, tmp))
O = open('%s/go'%tmp,'w')
#O.write('export TEXINPUTS=%s/doc/commontex:.\n'%SAGE_ROOT)
# O.write('latex \\\\nonstopmode \\\\input{sage.tex}; xdvi -noscan -offsets 0.3 -paper 100000x100000 -s %s sage.dvi ; rm sage.* macros.* go ; cd .. ; rmdir %s'%(zoom,tmp))
# Added sleep 1 to allow viewer to open the file before it gets removed
# Yi Qiang 2008-05-09
O.write('latex \\\\nonstopmode \\\\input{sage.tex}; %s sage.dvi ; sleep 1 rm sage.* macros.* go ; cd .. ; rmdir %s' % (viewer, tmp))
O.close()
if not debug:
direct = '1>/dev/null 2>/dev/null'
else:
direct = ''
os.system('cd %s; chmod +x go; ./go %s&'%(tmp,direct))
