We are happy to announce a new test release of MetaPost:
---------------------------------------------------------------------- MetaPost 1.770 ---------------------------------------------------------------------- This is a test release for the new functionality planned in MetaPost 1.800. This version will not be uploaded to CTAN / TLcontrib yet. The plan is to wait for a few weeks before releasing 1.800. That will then be an official end-user release. Bugs in the current version are expected, so use with care! The standalone distribution package and a win32 binary can be downloaded immediately from http://foundry.supelec.fr/gf/project/metapost/ ---------------------------------------------------------------------- What is new in MetaPost version 1.770: ---------------------------------------------------------------------- Fixes & improvements: * There is a new bitmap backend: outputformat:="png"; This backend uses cairo and libpng to generate PNG bitmap data. Associated with this, there are new internals "hppp" and "vppp", that are used by the bitmap backend to decide on the scale of the generated bitmap. Default value for both new internals is "1.0", i.e. one pixel per Metapost point. * On the command line, adding --numbersystem="double" switches to double precision floating point internal numerical values instead of the traditional scaled point. There is also an identically named new read-only internal to query the current setting. The possible return values for that are currently "scaled" and "double". With "double" in effect, numerical values can be expressed in scientific notation including exponent, e.g.: a = 23.5E71; and the warning limit (traditionally 4096.0) has been extended to allow for the greater range. * The C API has been extended to allow path control point resolution without going through the Metapost input language, see manual/mplibapi.tex for details. * The C API has been extended with a "math_mode" switch in the options structure, and the memory size options as well as "ini_mode" have been removed (the MPlib instance now always starts up in inimp mode) * The code for picture shipout now uses "double" for all floating point values. This can give small differences in the actual output files in traditional mode due to the required scaled -> double conversion, but was necessary to support the new numerical backend code. * The Lua API internals have been updated to reflect the C API changes. * All known crashes in earlier versions of Metapost have been fixed. Known issues: * The manual is not up-to-date yet on the metapost input language changes. * There are various small memory leaks (for the most part, these were already present in mpost 1.50x series). ---------------------------------------------------------------------- Legal notice / license / bug reports ---------------------------------------------------------------------- MetaPost is a system for producing graphics developed by John Hobby at AT&T, based on Donald Knuth's Metafont. The MetaPost home page is http://tug.org/metapost. MetaPost is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the License, or (at your option) any later version. The MetaPost development project is currently hosted at Supelec, http://foundry.supelec.fr/gf/project/metapost; with a bug tracker at http://tracker.luatex.org/. Please report bugs and request enhancements through there if possible. Alternatively, you can reach us through the <metap...@tug.org> mailing list as well. Have fun! Taco Hoekwater, for the MetaPost team, December 10, 2012. -- http://tug.org/metapost/ _______________________________________________ dev-context mailing list dev-context@ntg.nl http://www.ntg.nl/mailman/listinfo/dev-context
