Log Message:
Update to 0.13:

0.13 (2013/12/20):
  - Requires at least Python 3.2
  - The gallery has been moved to https://sourceforge.net/p/pyx/gallery/, which
    is a wiki. Contributions are welcome.
  - filelocator module:
    - cygwin LaTeX with windows python patch (thanks to Sybren A. Stüvel)
  - graph styles:
    - fix numerical instability of line clippings
    - remove errorbar range checks, as they fail on a reverse axis, which is
      correct (reported by Néstor Espinoza)
  - path module:
    - fix internal name clash when generating a normpath from an empty path
      (reported by Brendon Higgins)
  - normpath module:
    - several stability and precision improvements and bugfixes
    - cusp removal at normpath construction (and getting rid of invalid
      results for curvature, rotation, tangent, and trafo methods)
    - remove curveradius methods as they are invalid for straigt paths
  - deco module:
    - apply text trafos to each character in curvedtext (reported by Hans L)
    - properly apply all textattrs in curvedtext (for example colors or scalings)
  - canvas module:
    - layer method takes layer names above or below (instead of an instance),
      also reorders layer accordingly when layer is already existing
    - remove the before and after arguments of insert
    - handle trafo and clip separately in constructor and write methods
    - allow for one clipping instance only
    - optimize graphics state stack usage
  - dvi/dvifile module:
    - change special handling for transformations and colors to use subcanvases
    - apply transformations to markers
  - trafos and styles are no longer canvasitems
  - style module:
    - fillrules are now fillstyles and handled within the PS/PDF context
  - text module:
    - new texenc setting
    - major code reorganization and documentation revision (now using autodoc)
  - font/afmfile module:
    - parse more AFM files, also some with common inconsistencies (thanks to
      Markus Schwienbacher for reporting these issues)
  - color module:
    - functiongradient has been split into functiongradient_rgb, etc. and
      the function parameters are now passed directly
    - lineargradient has been removed for factory functions lineargradient_rgb, etc.
      that provide linear gradients between colors of a particular color model
  - bitmap module:
    - fix jpegimage for progressive jpeg files (thanks to Michael Schindler)
  - pyxrc:
    - use APPDATA environment variable to locate the pyxrc on windows
    - tex, latex, kpsewhich, and locate executables are now customizable in the pyxrc
  - on the package level:
    - add pyxinfo to enable output of some useful information
  - manual:
    - PyX theme and various sphinx tweaks

0.12.1 (2012/10/26):
  - graph styles:
    - fix drawing and clipping of gradient style

0.12 (2012/10/17):
  - canvas module:
    - insert method now returns canvas wrapping item if attrs are given
    - insert method allows specification of position where item is inserted
      by before and after arguments
    - new layer method allows creation of separated drawing layers for
      grouping of drawing operations
    - writeXXXfile methods now use "page_" and "write_" \ 
prefixes for passing
      the keyword arguments to the page constructor and write method
    - pipeGS now returns a file handle instead of writing to a file or to stdout
    - the new method writeGSfile restores the previous pipeGS functionality
    - support rendering as png for use in IPython notebooks (as suggested by
      Nikolas Tezak)
  - document module:
    - writeXXXfile methods now support writing to stdout when filename is set
      to "-"
  - type 1 font modules:
    - allow font slanting for T1builtinfont instances
    - improve stripped font compatibility
    - remove UniqueID lookup from embedded fonts in PostScript output (fixes
      missing glyph issue with dvips and certain fonts)
    - allow Type1 font usage without TeX and without AFM font metric
    - add support for pfm font matrices
  - epsfile module:
    - fix race condition while generating bitmap for PDF inclusion
    - fix file opening for bbox reading when using filelocator (reported by
      Michael J Gruber)
  - filelocator module:
    - fix text mode line ending issue for MS Windows
  - text module:
    - fix subprocess call on MS Windows (closefds not functional not also
      not required at all)
    - fix pyxgraphics functionality because at least some versions of graphics
      and friends seem to expect the file extension .def for the driver files
      (thanks to Michael J Gruber)
  - deco module:
    - decorator to put text along a path; based on a patch by Michael J Gruber
  - dvifile module:
    - fix for MS Windows: open virtual font files in binary mode
  - graph modules:
    - graphs:
      - uses new canvas layers to stack graph components (fixing bug #1518414,
        reported by Dominic Ford)
      - add a flipped option to graphxy to exchange x and y coordinates
      - add a 1d graph "graphx" (use case: convert a value to a color)
      - add hiddenaxes layer to the 3d graph
      - add linkedaxes for the xy-plane in 3d like in 2d (works now properly due
        to the hiddenaxes feature)
    - graph styles:
      - add density style
      - add gradient style to convert a value to a color using a 1d graph
      - add a usenames dictionary to the pos style (like rangepos had it already)
    - graph data:
      - add a join data provide which adds concatenates several data sources
    - axis module:
      - divisor was not properly taken into account in tick handling (axis
        range extension and range rating)
  - added the metapost module:
    - create smooth paths from a series of points
  - bitmap module:
    - new fundamental constructor based on arbitrary affine transformations
    - add ASCIIHexDecode end marker
  - color module:
    - add rgbgradient and cmykgradient to force color space
  - mesh module:
    - add ASCIIHexDecode end marker
  - sourceforge.net:
    - upgrade PyX project page to the Allura platform

0.11.1 (2011/05/20):
  - canvas:
    - fix pipeGS (adding support for writing using pycompat.popen)
  - deco module:
    - arrow decorator: proper sign of constriction length for positioning
      reversed arrows
  - dvi/texfont:
    - fix exception type
    - increase designsize deviation to 4 (needs some further investigation)
  - contrib files:
    - fixes due to the dvi and font restructuring
  - setup.py:
    - fix build process for extension modules
    - fix download url to allow for easy_install (hopefully)
  - manual:
    - converted to sphinx

0.11 (2011/05/15):
  - font and dvi modules:
    - major reorganization
    - TeX mapping files are a property of the writer now
      By that the pdfwriter now uses pdftex.map instead of psfonts.map
      (It's also possible to pass a fontmap to a texrunners text method to use
      different mappings within a single output file)
    - support for font matrices (afm) for Type1 fonts
      (using fonts without a metrics is still supported, but properly issues
      a warning now)
    - interface for basic TeX-less text output
    - new PS and PDF writer options: strip_fonts, text_as_path, mesh_as_bitmap,
      mesh_as_bitmap_resolution
    - fix for commented out UniqueID
    - fix rounding of font sizes
    - fix scaling of VF position increments
  - new filelocator module
  - graph modules:
    - bar style on graphxyz (single datasets only)
    - graphxyz:
      - fix position of z4 axis
      - set correct errorname for z axis (thanks to Axel Freyn)
      - fix wrong y value usage instead of z value in pos methods
    - fix unused color range settings in surface style (thanks to Michael J Gruber)
    - fallbackrange for axes with vanishing range
    - dokeyitem method (to be called with a plotitem) to alter the key order
    - doplot() was renamed to doplotitem(), dodata() was renamed to doplot()
      to have similar naming conventions like for the graph key
    - axis module: do not divide by None for data.min and/or data.max being None \ 
(see patch #2833369)
    - axis painter:
      - properly rotate axis titles when ticks are not othorgonal
        to the axis (reported by Christian Delfosse)
      - correct namedirection in bar axis painter (reported by rhunger, bug #2028032)
    - graph.style.arrow: decorator is an parameter of the constructor now
      (thanks to Axel Freyn)
    - remove ticks with unset ticklevel and labellevel to prevent rating failures
      (thanks to Brendon Higgins)
  - canvas and document modules:
    - auto-guess output filename from the script filename
    - add ciecolor flag and input type to the pipeGS method of canvas
  - pyxrc:
    - new config options for psfontmaps and pdffontmaps
    - new config option for formatting of Python warnings
    - new config section for new filelocator module
  - text module:
    - fix two bugs in the read pipe of the texrunner (thanks to
      Laurence Tratt and Eric Faurot)
    - fix "<" token handling in mapping file parser (thanks to \ 
Matthew West)
    - fix start message parse error in MiKTeX (thanks to Wojciech Jaskowski)
    - fix rigid aux file checking (thanks to Clayton E. Myers)
    - use subprocess module if available
    - proper error messages when TeX is stopped due to unrecoverable error
  - style module:
    - implement style.fillrule
  - deco module:
    - added an explicit hatch pattern as an alternative for real postscript patterns
    - arrow decorator: take into account constriction length when arrow pos < 1
  - bitmap module:
    - add support for transparent bitmaps (in postscript stencil masking only)
  - path and normpath modules:
    - remove incorrect zero length line in PDF output for each first moveto
      path element (thanks to Michael J Gruber)
    - raise correct normpath exception (thanks to Axel Freyn)
  - epsfile module:
    - an ugly way to import EPS in PDF using a bitmap (requires PIL)

0.10 (2007/10/03):
  - graph modules:
    - graph module:
      - graphxyz for 3d graphs with parallel and central projection
      - doplot method (to be called with a plotitem) to alter the plotitem order etc.
    - graph styles:
      - new surface style for 3d graphs (colored surfaces are functional
        (and useful!) for 2d graphs as well)
      - new grid style for 3d graphs
      - new impulses style
      - optional textdx/textdy columns to the text style added
      - arrowpos parameter to the arrow style added
      - bugfix: fromvalue axis range adjustment in histogram style
      - bugfix: axis range adjustment in range style
    - axis module:
      - painter: don't insert axis title twice (thanks to Tim Gray for reporting \ 
this problem)
      - parter: extend the logarithmic parter to calculate automatic partitions \ 
for huge ranges
        (TODO: documentation of the new autoexponent parameter) (suggested by \ 
Dominic Ford)
      - fix: range rating was not taken into account due in the 0.9 release
    - data module:
      - list class was renamed to points; deprecation warning added
        for instance creation, but inheritance from list failes
      - new values class
  - new mesh module:
    - internal helper module for efficient handling of triangular colored meshs
  - color module:
    - renamed: palette->gradient, functionpalette->functiongradient, \ 
linearpalette->lineargradient
    - new class palette representing a discrete ordered list of colors
    - support transparency for filling/stroking in pdf separately
    - transparency support for postscript as available by means of a proprietary
      ghostscript extension (for ps2pdf)
    - renamed method: tostring8bit -> to8bitstring (bug #2932888)
  - attr module:
    - add multichangeattr to perform a select on different changeable attributes
      depending on the selects total number
  - font modules:
    - t1font:
      - add missing glyph traversal in t1seacs updatepath
  - normpath module:
    - support zero-length normsubpaths
  - canvas module:
    - don't change order of attrs passed to canvas constructor in place
  - added __truediv__ methods according to PEP 238