[metapost] MetaPost 1.780

Taco Hoekwater taco at elvenkind.com
Mon Dec 24 13:52:45 CET 2012

We are happy to announce a new test release of MetaPost:

MetaPost 1.780

This is a second 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 still likely, so use with care!

The standalone distribution package and a win32 binary can be downloaded
immediately from


What is new in MetaPost version 1.780:

* The turningnumber calculation in 1.770 was bugged.

* The picture export in 1.770 forgot to add trailing zeroes to the
   log and term output channel resulting in rubbish output.

* The arguments of the PS "dtransform" operator have been fixed
   (was wrong since 1.750).

* The warning limit in numbersystem=double mode is now exactly 2**52.

* A bunch of obvious memory leaks fixed. Not all yet, but now the
   MPlib seems to be usable even with many graphics.

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 <metapost at tug.org> mailing list as well.

Have fun!

Taco Hoekwater, for the MetaPost team, December 24, 2012.

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