pfb -> pfa converter in pure python

[PyX/mjg.git] / CHANGES

PyX

- ATT: refactoring of attributes in progress!!!

TODO:
  - graph module
    - rect style (and errorbars?) should use clipping (TODO: should they or do the now?)
    - do not include unneeded line segments when the axis range is set manually
    - allow for an iteration of a graph style, when it is used several times
    - common bboxes for different graphs
    - automatic datafile key title
    - exceptions in drawsymbol & friends...
    - 3d graphs, circular graphs
    - symbols + lines -> symbollines (??). Symbols should not allow setting lineattrs, and
      lines not symbolattrs
    - allow for graph.changesymbol.square(size=0.15) etc.
    - rect style (and errorbars?) should use clipping
    - paths are to be drawn instead of inserted
  - style module:
    - default patterns
    - make dash length available
  - text module:
    - split into two modules: text and dvi 
    - SlantFont & Co support
  - mathtree module:
     - consider rewrite using the python compiler module
  - bbox module:
     - __iadd__ and inplace enlarge, transform,...
  - path module:
    - reverse needs to be fixed
    - there should be a path._at, path._begin, path._end
    - use math.degrees and math.radians
  - data module:
    - data.data should add line number like data.datafile
    - use csv module (new in 2.3)
  - connnector module:
    - use math.degrees and math.radians instead of self-written functions

0.5 (????/??/??):
  - setup.py and distribution:
    - allow customization of the extension modules built (via setup.cfg)
    - disable building pykpathsea module by default
    - more detailed description of install process in INSTALL
    - include example data files in distribution (suggested by Andrea Riciputi)
    - force dvips to write ps files instead of printing them (suggested by Otto Tronarp)
  - text module:
    - improved is-readable test for lfs files and pyx.def file
    - explicitly quit (La)TeX in cleantmp (helps when quitting with <Ctrl>C)
    - showwaitfortex implemented following a suggestion by Fernando Perez
      (waitfortex is increased to 60 seconds now)
    - support of TeX extention --ipc for reading dvi results while TeX keeps running
    - configurable font mapping files (via pyxrc or parameter of the texrunner constructor)
    - markers to get access to positions within TeX expressions
    - fix: allow for e-tex in texmessage.start (reported by Andrea Riciputi)
    - fix: print warning at syntax errors in font mapping file and continue (cf. bug #795271)
    - remove limitation on number of fonts in dvi file
    - added native virtual font support
    - dvicopy support not needed anymore (it is still available, but obsolete and
      removed from the documentation)
    - do not include too many glyphs in the eps file
  - dvifile module (NEW):
    - separated from the text module
    - dvifile class returns standard pyx canvas instances on readpage
  - graph module:
    - removed manualpart and partitioners mix keyword
    - results of the splitting at "=" in graph.function were not stripped
    - skip title=None in key (cf. bug #821284), properly align a single key entry
    - another (the last?!) axis redesign: axispos -> class of its own
    - some axispos name have changed slightly (zeroline -> zeropath etc.)
    - tick/data-vmin/vmax removed (TODO: documentation)
    - pathaxis (TODO: example and documentation)
    - various linkaxis (TODO: example and documentation, FAQ?)
  - canvas module:
    - stroke and fill now support trafos (TODO: documentation)
    - uppercase version of a4, a3, ... paperformats
  - config module:
    - new module for loading PyX configuration information
  - pyx module:
    - automatically import main modules into pyx namespace as suggested by Fernando 
      Perez.
  - path module:
    - check for sorting of parameter list passed to path.split method
  - deco module (NEW): 
    - contains decoratedpath and decorators from canvas module
    - all predefined arrows are classes now (like all decorators) and
      attributes have to be passed explicitely (e.g. earrow.small(attrs=color.rgb.red))
    - TODO: document me
  - style module (NEW):
    - contains all line- and fillstyles which formerly had been defined in the canvas module
    - dash now supports relative dash lengths (as suggested by Otto Tronarp)
    - TODO: document me
  - mathtree module:
    - fixed incorrect handling of - (for instance -x**2 was not negative)
  - attrlist module:
    - contents have been moved to the (obsolete) tex module, which was the only user anyhow, and
      the module itself was removed

  TODO for PyX 0.5 (please feel free to move items up to the general TODO list)
  - path module:
    - path.split takes several points (as *args) while lentopar takes a list of points
    - path.tangent is missing in the documentation
  - color module:
     - should colors and palettes exclude each other?
  - graph module:
    - multiple finish calles in linkaxis!
  - documentation!!!
  - check FAQ

0.4.1 (2003/09/17):
  - canvas module:
    - "in" to "inch" in paperformats
  - text module:
    - fix pyx.def hack occuring whenever \ProcessOptions* was used by a package
  - pykpathsea module:
    - implement different file formats for Python version of module
  - t1strip module:
    - python fallback solution should behave the same way as c extension module (closes SF bug #799182 reported
      by Marcus Mendenhall)
  - __init__.py:
    - added "connector" to __all__

0.4 (2003/08/22):
  - graph module:
    - separate texter out of the axispainter
    - axis/partitioner/texter/painter/axispos redesign & interfaces
    - tick.text is renamed to tick.label
    - ticks and labels are renamed to tickpos/tickdist and labelpos/labeldist in partitioning
    - ticks can be used in the part to mix a partitioner with some manual ticks
      -> manualpart and the mix technique is not needed anymore
         (both things are still available and working, but they will be removed in the future)
    - _ensurefrac is implemented inside the frac constructor now; initialization is possible by:
      - a (enum, denom) tuple now (previously there were two arguments)
      - a string (as before via _ensurefrac)
      - exponential strings are allowed as well (e.g. "1e10" etc.)
      - a float (precision is determined by floatprecision -- the number of decimal places)
    - dense -> density
    - axis.maxworse
    - axis interface
  - text module:
    - reset() method for the texrunner
    - automatic restart of a TeX instance with the same preamble (preamble changes are not possible)
    - texmessage.loadfd for accepting font description loading
    - don't bail out on width_index == 0, but mark character invalid instead
    - dvicopy flag
    - support for specials; pyxgraphics flag
    - support psfonts.map: font names, font encodings
    - bugfix \def\ProcessPyXBox -> \long\def\ProcessPyXBox
    - improved lfs handling
  - data module:
    - full documentation via doc strings
  - connector module:
    - some preliminary version
  - box module:
    - multiple radii (up to two per point) and softnesses
    - ensurecenter added --- do we always force the creation of a center?
  - path module:
    - lentopar methods added including some tests
  - epsfile module:
    - new parameter bbox allows to override the bounding box of the eps file

  bugfixes:
  - text module:
    - derive TFMError and DVIError correctly from exceptions.Exception
    - close files and pipes, if they are no longer used (thanks to Marcus Mendenhall)
    - remove DeprecationWarning in Python 2.3 (thanks to Marcus Mendenhall)
  - box module:
    - correct rounding algorithm (Michael Schindler)
  - graph module:
    - refer to the graphs texrunner instead of the defaulttexrunner (cf. #728209)
    - rounding towards zero bugfix in autolinpart
    - log axis range rating bugfix
  - mathtree module:
    - addarg bugs (#738724)
  - epsfile module:
    - fix mixing up of height and width in scale calculation
  - and various other fixer here and there

0.3.1 (2003/04/04):
  - text module:
    - fix bug in dvi rule code where width was height
    - fix preamble attribute checking bug
    - fix texmessage.load pattern search instead of pattern match bug
    - renamed vbox to parbox (was done in 0.3 partially only)
  - data module:
    - allow for tuples in arguments of the data class
    - convenience: exchanged order of named parameters in data.data
  - graph module:
    - convenience: allow for part=None in _axis (base of linaxis and logaxis)
  - examples:
    - added a latex example (requested)
    - added a attributechange example (requested)
    - added back the integral example (requested; prior PyX 0.3 it was part of the user manual)
    - small change in vector example (allow for the access to the texrunner)
    - examples included in source distribution
  - canvas module:
    - correct arrow template calculation for very short paths

0.3 (2003/03/31):
  - examples
    - new easy to use example generation (will hopefully lead to nice examples)
  - unit box:
    - new module for handling of convex polygons (taken out of the graph module)
  - unit helper:
    - new module containing a collection of helper functions (taken out of the graph module)
    - moved the attrlist into helper -- as plain functions; attrlist becomes obsolete
  - text module:
    - new module: a new and preferable integration of TeX/LaTeX
  - t1strip module:
    - strip glyphs from pfa/pfb-fonts
    - there is a C implementation taken from pdftex
    - fallback solution via an external program (pfb2pfa)
  - pykpathsea module:
    - (partial) C binding to libkpathsea
    - fallback solution via an external program (kpsewhich)
  - graph module:
    - removed some code duplication (various axis painters)
    - use text module instead of the obsolete tex module
    - allow for tailing zeros of automatic generated labels
    - allow for missing data in bar graphs -> skipmissing parameter
    - remove the support for variables given as keyword arguments in data constructor
    - use context instead of extern for extern variables and functions
    - graph keys; titles in data/function/etc.
  - unit module:
    - new classes for visual and width lengths, aliases for user length (u_pt = pt)
    - all length classes have now by default a quantifier 1 (instead of 0), such that,
      for instance, 5*unit.t_cm() == unit.t_cm(5)
    - default_unit now has to be set via unit.set. For instance: unit.set(defaultunit="m").
    - convert_to is now an internal function, which moreover does not longer accept tuples or lists
  - bbox module:
    - new class _bbox (the former bbox) which accepts points in the constructor. This is used
      for internal purposes.
    - the bbox constructor now accepts user lengths in the constructor.
    - new methods height, width, top, bottom, left, right
    - ll & ur ???, what about ul and lr -> ugly!
    - enlarge (was enhance) now allows selective enlargement to the left, bottom, right and top
    - output HiResBoundingBox
    - never reduce bbox upon output
  - epsfile module:
    - new constructor signature, more in line with rest of PyX:
      epsfile(x, y, filename, **additional_args)
  - data module:
    - removed additional column support in addcolumn; removed _addcolumn
    - line reduction for datafile like the every parameter in gnuplot
  - canvas module:
    - new way of PS prolog generation that writes only necessary parts
    - added support for patterns
    - canvas.insert() now supports arguments
    - bbox of canvas can be specified in writetofile command explicitely
    - writetofile does not return self anymore
    - arrow template now uses intersection with circle to get size right
      (as per a suggestion by Michael Schindler)
  - mathtree module:
    - added abs function
    - changed the handling of extern functions and all variables
  - color module:
    - gradient renamed to palette
  - numerous bugfixes:
    - problem with sizefile on windows (tex module)
    - allow for strings in graphxy's width and height; allow for width only (graph module)
    - disable rating for labelattrs equals None (graph module)
    - defaultstyle selection, when a list of data is provided to the plot function (graph module)
    - traverse when adding functions as arguments of operators (mathtree module)
    - allow for extern functions in addcolumn (data module)
    - just one common place for the version number
    - fix incorrect exception name MathError (path module)
    - prevent double return of intersections for closed sub paths
    - ...

0.2 (2003/01/17):
  - unit module:
    - allow division of length by numbers
  - trafo module:
    - new transformation: slant
    - renamed all trafo methods to use the participle (i.e translate->translated)
    - the name of all trafo subclasses are verbs (i.e. translation->translate)
  - graph module:
    - mark class renamed to symbol
    - (text-)box distance measurement
    - moved axis partitioning to axis and axis painter
    - automatic axis partitioning (now officially: general cleanup, distance measurement, documentation)
    - splitaxis
    - baraxis, baraxispainter, and bar style
  - data module:
    - previously named datafile module
    - class "_datafile" renamed to class "data"
    - class sectionfile added
    - testsuite
  - mathtree module:
    - extern variables and functions (support in graph.function, graph.paramfunction and data.data)
    - testsuite
  - text module:
    - deferred to Version 0.3
    - running TeX "on the fly" is basically implemented
  - numerous bugfixes:
    - transformation bug (#624068, trafo module)
    - canvas transformations (canvas module???)
    - textbox alignment (graph module)
    - return linewidth upon calculation with linewidths (unit module)
    - allow column number variables with several digits
    - ...
  - british and american spellings (color module, graph module)
  - small logo modifications

0.1 (2002/10/07):
  - initial release