matplotlib.dviread A module for reading dvi files output by TeX. Several limitations make this not (currently) useful as a general-purpose dvi preprocessor, but it is currently used by the pdf backend for processing usetex text. Interface: with Dvi(filename, 72) as dvi:
    # iterate over pages:
    for page in dvi:
        w, h, d = page.width, page.height, page.descent
        for x, y, font, glyph, width in page.text:
            fontname = font.texname
            pointsize = font.size
            ...
        for x, y, height, width in page.boxes:
            ...
   classmatplotlib.dviread.Dvi(filename, dpi)[source]
 
Bases: object A reader for a dvi ("device-independent") file, as produced by TeX. The current implementation can only iterate through pages in order, and does not even attempt to verify the postamble. This class can be used as a context manager to close the underlying file upon exit. Pages can be read via iteration. Here is an overly simple way to extract text without trying to detect whitespace: >>> with matplotlib.dviread.Dvi('input.dvi', 72) as dvi:
...     for page in dvi:
...         print(''.join(chr(t.glyph) for t in page.text))
 Read the data from the file named filename and convert TeX's internal units to units of dpi per inch. dpi only sets the units and does not limit the resolution. Use None to return TeX's internal units.   propertybaseline[source]

   close()[source]
 
Close the underlying file if it is open. 
 
   classmatplotlib.dviread.DviFont(scale, tfm, texname, vf)[source]
 
Bases: object Encapsulation of a font that a DVI file can refer to. This class holds a font's texname and size, supports comparison, and knows the widths of glyphs in the same units as the AFM file. There are also internal attributes (for use by dviread.py) that are not used for comparison. The size is in Adobe points (converted from TeX points).  Parameters 
 
scalefloat


Factor by which the font is scaled from its natural size.  
tfmTfm


TeX font metrics for this font  
texnamebytes


Name of the font as used internally by TeX and friends, as an ASCII bytestring. This is usually very different from any external font names; PsfontsMap can be used to find the external name of the font.  
vfVf


A TeX "virtual font" file, or None if this font is not virtual.    Attributes 
 
texnamebytes


sizefloat


Size of the font in Adobe points, converted from the slightly smaller TeX points.  
widthslist


Widths of glyphs in glyph-space units, typically 1/1000ths of the point size.       size

   texname

   widths

 
   classmatplotlib.dviread.PsFont(texname, psname, effects, encoding, filename)[source]
 
Bases: tuple Create new instance of PsFont(texname, psname, effects, encoding, filename)   effects
 
Alias for field number 2 
   encoding
 
Alias for field number 3 
   filename
 
Alias for field number 4 
   psname
 
Alias for field number 1 
   texname
 
Alias for field number 0 
 
   classmatplotlib.dviread.PsfontsMap(filename)[source]
 
Bases: object A psfonts.map formatted file, mapping TeX fonts to PS fonts.  Parameters 
 
filenamestr or path-like

   Notes For historical reasons, TeX knows many Type-1 fonts by different names than the outside world. (For one thing, the names have to fit in eight characters.) Also, TeX's native fonts are not Type-1 but Metafont, which is nontrivial to convert to PostScript except as a bitmap. While high-quality conversions to Type-1 format exist and are shipped with modern TeX distributions, we need to know which Type-1 fonts are the counterparts of which native fonts. For these reasons a mapping is needed from internal font names to font file names. A texmf tree typically includes mapping files called e.g. psfonts.map, pdftex.map, or dvipdfm.map. The file psfonts.map is used by dvips, pdftex.map by pdfTeX, and dvipdfm.map by dvipdfm. psfonts.map might avoid embedding the 35 PostScript fonts (i.e., have no filename for them, as in the Times-Bold example above), while the pdf-related files perhaps only avoid the "Base 14" pdf fonts. But the user may have configured these files differently. Examples >>> map = PsfontsMap(find_tex_file('pdftex.map'))
>>> entry = map[b'ptmbo8r']
>>> entry.texname
b'ptmbo8r'
>>> entry.psname
b'Times-Bold'
>>> entry.encoding
'/usr/local/texlive/2008/texmf-dist/fonts/enc/dvips/base/8r.enc'
>>> entry.effects
{'slant': 0.16700000000000001}
>>> entry.filename
 
   classmatplotlib.dviread.Tfm(filename)[source]
 
Bases: object A TeX Font Metric file. This implementation covers only the bare minimum needed by the Dvi class.  Parameters 
 
filenamestr or path-like

  Attributes 
 
checksumint


Used for verifying against the dvi file.  
design_sizeint


Design size of the font (unknown units)  
width, height, depthdict


Dimensions of each character, need to be scaled by the factor specified in the dvi file. These are dicts because indexing may not start from 0.       checksum

   depth

   design_size

   height

   width

 
   classmatplotlib.dviread.Vf(filename)[source]
 
Bases: matplotlib.dviread.Dvi A virtual font (*.vf file) containing subroutines for dvi files.  Parameters 
 
filenamestr or path-like

   Notes The virtual font format is a derivative of dvi: http://mirrors.ctan.org/info/knuth/virtual-fonts This class reuses some of the machinery of Dvi but replaces the _read loop and dispatch mechanism. Examples vf = Vf(filename)
glyph = vf[code]
glyph.text, glyph.boxes, glyph.width
 Read the data from the file named filename and convert TeX's internal units to units of dpi per inch. dpi only sets the units and does not limit the resolution. Use None to return TeX's internal units. 
   matplotlib.dviread.find_tex_file(filename, format=<deprecated parameter>)[source]
 
Find a file in the texmf tree. Calls kpsewhich which is an interface to the kpathsea library [1]. Most existing TeX distributions on Unix-like systems use kpathsea. It is also available as part of MikTeX, a popular distribution on Windows. If the file is not found, an empty string is returned.  Parameters 
 
filenamestr or path-like


formatstr or bytes


Used as the value of the --format option to kpsewhich. Could be e.g. 'tfm' or 'vf' to limit the search to that type of files. Deprecated.     References  1 
Kpathsea documentation The library that kpsewhich is part of.