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2011-02-19
* support for ConTeXt and plain TeX
* removed dependencies for LaTeX packages other than TikZ
* needs TikZ Version >= 2.0
* better support for saving terminal options with gnuplot 'save' command
* all bitmap images can be externalized
* alpha channel support for bimap images via externalized PNGs
* new options 'crop', 'background', 'textscale', 'externalimages'
* fixed "overflow" bug on negative coordinates that are outside of the crop box
* various small bugfixes
Backward compatibility is dropped again.
2009-03-29
* Providing a script or target name is now mandatory. The new syntax:
set terminal lua <target name> | "<file name>"
{<script_args> ...}
This will look for a script named `gnuplot-<target name>.lua' or
a script named "<file name>" (in quotes!).
* Support for script names via the environmental variable
GNUPLOT_LUA_SCRIPT is dropped.
* The option "script" is obsolete and also removed.
* Via the environmental variable GNUPLOT_DRIVER_DIR the default search
directory for driver scripts can be changed.
* The TikZ driver help is now included as a subsection of the Lua
terminal.
* minor bugfixes (see ChangeLog)
This version drops backward compatibility again!
2008-12-20
* Removed all underscrores in style and color names.
* The plot box coordinates are now accessible via a special node. (e.g.
"gp plot 1.north east".
* Added aliases 'standalone' ('fulldoc') and 'header' ('preamble')
* Preparations to echo back the options string to the user.
This version drops backward compatibility!
2008-11-22
* Changed default canvas size to 12.5cm x 8.75cm and use the preview
package to clip the plot in 'fulldoc' mode (suggested by Juergen Wieferink).
* New option 'charsize'. In conjunction with the gnuplottex.sty the
font size can now be determined automatically. (look at the style file for
example code).
* Removed the default font setting (previously set to "\small").
No binary updates needed.
2008-02-02
* Implemented a mapping of gnuplot arrow styles to TikZ arrow styles by
"misusing" the angle of the gnuplot arrow definition.
* CMYK support for image data (all other colors are handled through the
xcolor package).
* terminal works with gnuplottex (\begin{gnuplot}[terminal=lua]...)
(http://www.ctan.org/tex-archive/help/Catalogue/entries/gnuplottex.html)
* compatibility updates for gnuplot 4.3cvs version
* optional environment variable GNUPLOT_LUA_SCRIPT
* fixed zero length paths artifacts and some more minor bugs
* added simple pager functionality for help output
The Lua script should work with the previous binary version, but the new
GNUPLOT_LUA_SCRIPT feature and pager functionality will not be available.
Maybe a minor issue for most users ;-)
2007-10-03
* New option 'providevars' to make gnuplot's internal and user variables
available within the TeX-script.
* Adopted the color scheme and dash patterns to (largely) resemble the
look of the postscript terminal.
* Changed the names of the bounding box coordinates from 'lowerleft' to
'south west' etc. to be closer to the TikZ naming scheme.
Binary update needed on upgrade.
2007-09-22
* Lengths in the 'size' options now accept the units cm, mm, in or inch, pt,
pc, bp, dd and cc.
* Switched from generic TikZ styles like 'every plot' to gnuplot specific
TikZ-styles.
* Support for plotting images of pixel and binary 2D-data. For PDF and
Postscript generation the image will be included in a native PDF or PS
format what reduces space and compile time and improves rendering quality.
For the SVG output of PGF/TikZ the 'native image' feature has to be
disabled manually. The image will then be rendered of filled rectangles.
* Added 'tikzplot' option which allows using the TikZ '\path plot'
command instead of the simple '\path' for plots with given linetypes.
* Added 'is_multiplot()' to the Lua terminal (currently unused in the
TikZ backend).
* Changed the Lua-API: Color and fill styles are now passed as strings
instead of integers to the script.
Binary update needed on upgrade.
2007-08-25 ii
* Improved robustness of the option parser.
* Fixed a PGF/TikZ compatibility issue reported by Scott Murman.
No binary update from previous version needed.
2007-08-25
* Fixed rectangle scaling in conjunction with the 'plotsize' option
(thanks to Scott Murman for reporting).
This update only affects the gnuplot.lua script.
2007-08-24
* A 'size' option for the canvas was added.
* The 'scale' option now expects an x and y parameter, so the
'xscale' and 'yscale' options where removed. Scaling and resizing
now work similar to the other terminals.
* The 'monochrome' and 'solid' options do not change the actual
TikZ plot commands anymore, but only change the according TikZ
style settings.
See the 'ChangeLog' file for previous changes.
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