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- This file contains a log of all the old NEWS files.
-
-
-
- **************************************************************************
- Version 4.99h: Summary of major changes
- **************************************************************************
-
- This was to be a quick bug fix update, but I got going on several major
- changes plus addition of user contributions. So there are some important
- new capabilities as well as a lot of bug fixes.
-
- Note: as a result of a lack of time, most of the DOS drivers and the Amiga
- driver have not been upgraded to work with the new configure/build files.
- The DOS DJGPP port is one exception. So these are essentially useless
- until these are done. I will issue another beta as soon as these are
- done, hopefully within a week or two.
-
- ------------------------------------------------------------------------
- Configuration, building, and installation:
-
- Completely new configuration script! The new configure script is
- built using GNU autoconf, and great care was taken in its construction.
- Highlights:
-
- 1) It is capable of doing basically everything it did before. Packages
- are included by typing e.g. --enable-tk or --disable-tk, etc. Major
- options are set by typing e.g. --with-gcc or --without-opt, etc. There
- is a startup file so you can customize on a per-site basis like before.
- Although now, shell variables are used to store settings rather than m4
- variables, and only are substituted in the various files at the end of
- the configure script.
-
- 2) The Makefile components are usable on non-Unix systems. Notably the
- dependencies -- the Makefile is constructed by concatenating several
- text files together. The setting of configuration defaults on a
- non-Unix system is similarly easier than before. Just keep around
- custom copies of plConfig.h and plDevs.h. It's better to have
- 'configure' build these for you, of course.
-
- 3) The configure script is fully automatic. It should find all the major
- capabilities needed by PLplot if your system supports them, with no
- user intervention required.
-
- 4) The object file dependency list is now constructed using "gcc -MM"
- (like "makedepend", only better), making it much more robust.
-
- 5) Much better support for shared libraries. Works under HPUX and SunOS
- now, with Solaris, Irix, OSF-1 probably not far behind if someone wants
- to fill in the details. AIX probably I will get to, and Geoff has
- started on the Linux shared library build.
-
- 6) The new header file plConfig.h makes it much easier to get portable
- code, by concentrating all the hacks in one place and using configure
- to set them accordingly.
-
- See the cf/README file for more info. It works pretty much without
- user intervention now, though.
-
- ------------------------------------------------------------------------
- The second major addition: a Tcl PLplot API and interpreter. This means
- you can now make PLplot calls from Tcl. An interpreter -- pltcl (an
- extended tclsh) is provided. Be sure to check out the demo programs as
- follows:
-
- foobar% pltcl
- % source demos.tcl
- % 1
- % 2
-
- etc, up through 7. Not all PLplot C API calls are supported by the Tcl
- API yet.
-
- As part of this development a Tcl extension was created to handle matrices
- (arrays). Right now it supports 1-d, 2-d, and 3-d arrays. Eventually
- it will be improved a bit more and better documented and released to
- the Tcl/TK community. For now, read doc/tclMatrix.doc and check
- out the Tcl demos.
-
- ------------------------------------------------------------------------
-
- Other changes:
-
- - Another major cleanup of the core source files.
-
- - Ability to make point, line, and polygon plots in 3-d added.
- (Contributed by Geoff Furnish.)
-
- - Changes to support returning the cursor location in world coordinates
- given a mouse click, if supported by the driver (only used by windows
- driver so far -- a lot of work remains for the rest of the package to
- use it). Supports multiple windows per page, and gets the correct set
- of world coordinates for the plot selected. Contributed by Paul
- Casteels.
-
- - Function to plot map backgrounds added, where the map data is read from
- the specified map data file (examples provided). Contributed by Wesley
- Ebisuzaki.
-
- - Fast point plot ability added. Call plpoin with code=-1 for a 4X or so
- speed increase in point plots.
-
- - Search path for needed files improved and made more consistent.
- (Contributed by Mark Olesen).
-
- - Can now save a plot from the Tk/DP driver and have the colors turn
- out correctly.
-
- - Previous problems re: mono X displays fixed.
-
- - Multiple sequential bop or eop's are now munged together, making it
- easier to avoid blank pages.
-
- - Can now change the number of subpages at any time.
-
- - Fixed problems in tek drivers caused by entering cbreak mode --
- this was fouling up user input (tty) requests. Now it goes into cbreak
- mode when switching to the graphics screen, and back to canonical mode
- when switching to the text screen. Also, this is all usable now on
- systems without an ANSI libc.
-
- - Added new driver -- HP Laserjet III in HPGL emulation mode (lj_hpgl).
- Contributed by Conrad Steenberg.
-
- - Greatly improved support for embedded plframe use (directly from
- plserver or a plframe-extended wish). See tk01, tk02, tk03 for more
- info. Many minor improvements and a few bugs squashed in the Tk driver.
-
-
-
- **************************************************************************
- Version 4.99g: Summary of major changes (gigantic update)
- **************************************************************************
-
- This was a very big update, sorry for the delay. The changes may cause
- some inconvenience, and while we can't promise an end to that :-), will
- try to hold them to a minimum before the "big" 5.0 release. As we get
- closer, there are some changes we will make in the "now or never" frame of
- mind, meant to positively affect future versions without causing too much
- difficulty now.
-
-
- - Document:
-
- We have made substantial progress towards converting the (previously
- LaTeX) document into LaTeXinfo. This gives us the capability to have both
- a high quality (yes, if you work at it hard enough) printed manual as well
- as a hypertext-like online document, using info. There are many info
- readers around but the most famous is the one built into Emacs. Both
- documents are now available but still need considerable work, and
- unfortunately are still largely based on information as of the beta
- plplot4.0 series. Based on the number and importance of the changes since
- then, we an updated manual is desperately needed! And it is coming...the
- contents of the doc directory represents work in progress.
-
-
- - configuration, building, and installation:
-
- configure has been improved so that it runs more like GNU configure. You
- can run it from the root directory (although I don't necessarily advise
- doing so) and use the GNU configure --prefix option for setting the
- location to install PLplot (more useful).
-
- THE DEFAULT INSTALL DIRECTORY PROCEDURE HAS BEEN CHANGED!!!!!
- Now PLplot by default installs into:
- prefix-dir/
- bin/
- lib/
- include/
- doc/
- tcl/
- It had to be done before it was too late. Makefile overrides default
- value of INSTALL_DIR if m4 macro PREFIX is defined. Also check out
- the script "mklinks".
-
-
- - Tcl-DP driver added!
-
- Yes, finally finished, and it works great everywhere but on Crays (sigh --
- and I thought I fixed that in the Tcl-DP 3.1 distribution). By using the
- DP driver you bypass all the difficulties with using Xauth (or the
- security problems of doing without it) in the TK driver. The Tcl-DP
- driver is much more usable. It's even distributable -- tested between an
- HP and a Sun (as server), and between an IBM RS-6000 and HP (as server).
- Just specify -server_host (and -user if necessary), and it will try to
- start up a plserver under your user account (need to have .rhost info set
- appropriately). Great at increasing responsiveness of the GUI, and screen
- dumps always save to the local machine.
-
-
- - TK interface improvements.
-
- The TK interface (using either the TK or DP drivers) has been greatly
- enhanced. "plserver" can be used exactly like an extended "wish" now (the
- TK windowing shell). It has been extended to know about "plframe" widgets
- and how to interact with the PLplot/TK/DP drivers. There are documented
- interfaces and demos now for building your own extended wish using the
- plframe widget, as well as an illustration of direct plotting using PLplot
- from Tcl (through the plframe widget). Color map manipulation tools added
- for cmap0 and cmap1. Support for user-modifiable keystroke invocation of
- menu items added. The following are the defaults keymappings as set in
- pldefaults.tcl, their meaning is clear:
-
- global key_zoom_select; set key_zoom_select "z"
- global key_zoom_reset; set key_zoom_reset "r"
- global key_print; set key_print "p"
- global key_save_again; set key_save_again "s"
- global key_scroll_right; set key_scroll_right "Right"
- global key_scroll_left; set key_scroll_left "Left"
- global key_scroll_up; set key_scroll_up "Up"
- global key_scroll_down; set key_scroll_down "Down"
- global key_scroll_slow; set key_scroll_slow "3"
- global key_scroll_fast; set key_scroll_fast "15"
- global key_scroll_faster; set key_scroll_faster "75"
-
- The last three indicate the number of pixels to scroll each time one
- keystroke is processed. To get the "fast" setting, press Shift-cursor.
- You get the "faster" setting by using shift-ctrl-cursor.
-
-
- - Area fill support added.
-
- Now you can do color (hardware) fills. Only recognized on certain drivers
- (postscript, all X-based drivers, all Tek4107 devices, and Amiga).
- Tektronix devices even recognize hardware pattern fills (obtained by a
- negative fill index). Devices that don't know about hardware fills
- automatically get a software pattern fill.
-
-
- - Color map usage improved.
-
- I have finally implemented the dual cmap0/cmap1 color scheme I have long
- talked about. cmap0 is typically for fixed colors, like axes, labels,
- lines, etc. Color 0 of cmap0 should now be the background! It may not
- always be enforced now but it eventually will be, as well as possible.
- cmap1 is envisioned as a continuous tone color palette. cmap0 contains
- the "normal" colors that you set by plcol(<number>) (now plcol0(<number>)
- is preferred). cmap1 contains colors set indirectly, by specifying
- "position in cmap1 space" -- a floating point number from 0 to 1 (previous
- to that a mapping between position and color must have been specified).
- This scheme has the advantage that you can take advantage of as many or
- few colors as the output device supports. For example, with postscript
- which supports arbitrarily many colors (the printer itself is another
- story), you can get 256 different colors, because that's as many as I
- currently provide storage for. On X-windows with 8 plane displays I get a
- lot less with a shared colormap (custom colormap support is almost done),
- maybe around 50-100, depending on window manager. And this scheme is even
- useful on as few as 16 colors, as is commonly available (Tek 4107
- emulation is fairly common on the PC, Mac, and Amiga). You do so by
- limiting the number of colors in cmap0, leaving most for use in cmap1.
- plshade() function enhanced to work with either color map -- see example
- program x16c for a demonstration.
-
- If at all possible, try to play with x16c using the TK or DP driver --
- modifying the color map interactively is simply wonderful. Especially try
- modifying cmap1, and then loading in the alternate palettes cmap1b.pal and
- cmap1c.pal (cmap1a.pal is the default), and play with it; you will get a
- much better idea how it works while I get around to documenting it!
-
-
- - Revamped Tek drivers, added explicit support for: Versaterm (Mac), and
- VLT (Amiga). [explicit mskermit(DOS) support was added in the last
- release] Tek4107 driver improved to actually work on a real tek 4107
- (thanks to Paul Kirschner). Commands to set color palette now are sent
- from PLplot.
-
-
- - Postscript output behaves better with ghostview -- it actually
- backspaces correctly (hey hey, finally).
-
-
- - X driver: lots of changes to support color map1 and custom color
- maps. Right now does NOT use a custom color map by default since I didn't
- think it was quite ready for the big time, especially as part of the
- TK/DP driver. There are some internal settings the adventurous can
- play with. Function added for capturing mouse events added (thanks to
- Radey Shouman); this soon should lead to a way of returning world
- coordinates at the mouse position.
-
-
- - Improved DOS driver support (see Changes.log and the drivers)
-
-
- - All source files handling API: replaced call to plexit() on simple
- (recoverable) errors with simply printing the error message (via
- plabort()) and returning. Should help avoid loss of computer time in some
- critical circumstances (during a long batch run, for example).
-
-
- - behavior of exit handler changed to be more useful for users who want
- greater control of execution.
-
-
- - plus lots of bug fixes, memory leaks plugged, compilation warnings
- eliminated, etc.
-
-