2023-04-12

* For gnuplot 6 (and back-ported to 5.4.7)

pgf.REVISION = "118"

Output from tikz standalone mode is compatible with texlive2023

and includes conditional code to deal with processing by any of

pdflatex/lualatex/xelatex

2020-06-02

* For gnuplot version 5.4

* pgf.REVISION = "114"

Force linewidth to 0pt for text node justification

* pgf.REVISION = "113"

pgf.REVISION_DATE = "2020/06/02 16:02:00"

revise gppoint to pass through opacity information

keep old variant gppoint so that old files still work

new variant is called gp3point (3 parameters rather than 2)

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* The option "script" is obsolete and also removed.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.