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HISTORY.DOC
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1994-02-22
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┌──────────────────────────────────────────────────────────────────────┐
│ Revision History │
└──────────────────────────────────────────────────────────────────────┘
18 December 93 - Added linestyles to the Lotus 1-2-3 PIC driver.
17 December 93 - Added left division \ to the set of internal functions.
9 December 93 - The '[' character (left square bracket) is no longer
allowed as a comment delimiter.
30 November 93 - Fixed a bug with the Lotus 1-2-3 PIC driver.
29 November 93 - Prevented 'spline range xmin xmax' from exceeding
the maximum x data point.
25 November 93 - Added the following probability distribution
functions: Binomial, Complemented Binomial, Inverse Binomial,
Negative Binomial, Complemented Negative Binomial, Chi-square,
Complemented Chi-square, Inverse of Complemented Chi-square, F,
Complemented F, Inverse of Complemented F, Gamma, Complemented
Gamma, Poisson, Complemented Poisson, Inverse Poisson and Student's t.
Changed 'beta' to 'ibeta', 'normal' to 'ndtr', and 'inormal' to
'ndtri'. Type HELP PROBABILITY for details.
23 November 93 - Added F1 ('help') and F10 ('show') function key support.
14 November 93 - Changed version to 2.5.
3 November 93 - Added LaserJet II, DeskJet 500 and LaserJet 4 drivers.
Type HELP LASERJET.
29 October 93 - Added smoothing of data points. Type HELP SMOOTH.
Changed the default symbol size to 0.1 inches (instead of 0.17).
25 October 93 - Added nine more Bessel functions: besi0, besi1, besin,
besjn, besk0, besk1, beskn and besyn. Type HELP BESSEL.
21 October 93 - Added the following built-in functions: beta, gamma,
igamma, ierf, inormal, normal, and rand. Type HELP FUNCTIONS.
19 October 93 - Added the 'what' command to the Coherent version to list
all the *.plt files in the current directory.
18 October 93 - Added last-line editing and command recall to the
Coherent version.
1 October 93 - Added checks when reading data in from a data file to
prevent memory overflows and lockups in the DOS version using Borland's
compiler.
25 September 93 - Fixed a little bug which screwed up the prompt when
shelling out to DOS a second time.
24 September 93 - Added hardware font sizes to the Coherent version.
20 September 93 - Fixed a bug that showed the last DOS screen immediately
after pressing any key at the introductory Graphica screen.
16 September 93 - Added 'lineto' and 'moveto' commands.
15 September 93 - Corrected a problem with the timestamp printed out
in hpgl mode when the character size, ratio or gap where changed.
14 September 93 - Added 6 filled symbols to the bgi and HPGL2 drivers.
HPGL can produce only a filled square. Working on filled symbols for
the PostScript driver.
12 September 93 - Changed version to 2.44. The line continuation symbol
';' can now also be used in script files as well as interactively.
10 September 93 - Fixed some bugs related to the 'location' command
when used with units other than inches. Added 'ufactor' to the set of
pre-defined constants. Type HELP WHO.
8 September 93 - Added an optional range specification to the 'plot'
command. Type HELP PLOT for details.
7 September 93 - Changed version to 2.43. "Beautified" the help file.
If the environment variable GRAPHELP is not set, Graphica will look
for the help file in any of the directories currently in your DOS
path. If the file is not found, you won't have any help on-line.
6 September 93 - Program froze up when trying to delete labels, arrows,
circles, etc. Fixed this bug.
5 September 93 - Added a 'rotate' switch to the x,y,y2 and x2-label
commands to draw them at 180 degrees. Type HELP PLOT for details.
4 September 93 - Added color and hardware font support to the PIC
driver. PIC still doesn't support line widths.
30 August 93 - Added color and hardware fonts to the PostScript driver.
For details type HELP POSTSCRIPT and HELP TERMINAL.
20 August 93 - Fixed some bugs relative to the thickness of characters
drawn with the 'legend' and 'label' commands. Thoroughly tested and
fixed Graphica's operation in video modes other than VGA. New data
input routine ignores labels in data files (see DATA).
17 August 93 - Whenever you shell out to DOS, a temporary prompt is
shown telling you to type EXIT to return to GRAPHICA. Activated the
Hercules video driver and fixed some color-related bugs. Slightly
changed the behavior of the legend block command (see HELP LEGEND).
10 August 93 - Added a 'clc' command to clear the text screen.
15 July 93 - Changed version to 2.42.
13 July 93 - Fixed a bug related to the power function (wasn't raising
to integer powers correctly under Coherent). Also fixed a bug in the
Coherent cbm (coherent bitmap graphics) driver not resetting the line
style after loading a second load file.
13 July 93 - After Graphica detects an error with a script file on the
command line, it stays on line for further processing instead of
bailing out to the OS command line.
7 July 93 - Added the 'what' command listing all .plt files in the
current directory.
1 July 93 - Started working on the 'polar' command to make polar plots.
25 June 93 - Changed version to 2.41.
22 June 93 - Found and fixed a serious bug with the font routines.
20 June 93 - Changed code to handle errors when dynamically loaded font
files are not found.
5 June 93 - Added 10 dynamically loaded software fonts to the registered
version. See DEMO5 and DEMO6 for how the new fonts look.
2 June 93 - Added code to dynamically load software fonts from disk, thus
reducing the executable size considerably. Changed version to 2.4.
14 May 93 - Added linestyles to the Coherent version. Soon linewidths.
20 April 93 - Changed some code to prevent errors from occurring when
changing terminals from bgi to (some other terminal) back to bgi.
19 April 93 - Started work on the LaTeX driver.
17 Apr 93 - Added the capability of sending output to the printer port
in the DOS version. If you have a printer connected to that port, for
example, you can send PostScript output directly to the printer (without
having to DUMP to a file and then send it later.) Type HELP OUTPUT.
14 Apr 93 - Finished adding on-screen color graphics to the Coherent
version. Still need to add linestyle and linewidth. It also has a
simple hardware font.
10 Apr 93 - Worked on the Coherent version for quite some time trying
to fix miscellaneous bugs and core dumps.
2 Apr 93 - Got rid of the 'show' command for showing status. Now
simply entering a command by itself will show its status. 'show' by
itself works just like before, i.e. it displays whatever you've
plotted so far on the screen or output device. Changed the meaning
of the 'axes' command. It no longer draws those axes that have been
mapped. Now it simply tells what axis types you've got.
20 Mar 93 - Added asinh, acosh and atanh to the set of built-in
functions. Type HELP FUNCTIONS.
20 Mar 93 - The 'print' command has been taken out. If you want to
evaluate functions or expressions, simply enter them at the Graphica
command line. Type HELP EXPRESSIONS.
20 Mar 93 - Added 'searchpath' logic to the DOS version. Graphica
will try to locate any script or data file entered with the 'load' or
'data' commands in the current DOS search path, not just in the current
working directory. You can also simply enter a script filename at the
Graphica command line and Graphica will try to determine if it exists
in the current search path, try to 'load' it and execute commands from
it. Type HELP LOAD.
20 Mar 93 - Changed the environmental variable GRAPHICA to GRAPHINI.
It now should contain the full path to the start-up filename,
including the filename itself, just like in GRAPHELP. Type HELP STARTUP
and HELP ENVIRONMENT.
20 Mar 93 - Changed version to 2.3.
17 Mar 93 - Pressing any key will cancel the introductory graphics
screen. Also, in batch mode plotting, the introductory screen does
not show up. Added a symbol type of 0 or 'dot' for plotting lots of
data with just tiny dots. Type HELP SYMBOLS.
13 Mar 93 - Renamed this help file to GRAPHICA.FIL to make things less
confusing for the development of the windows version. The compiled
windows version help file will be called GRAPHICA.HLP.
10 Mar 93 - Corrected some logic in the handling of units (in, cm,
mm). Repositioned the mouse location to the bottom right on DOS
systems. Also added a 'nodisplay' command to not show the location
of the mouse cursor. The mouse cursor shows up right above the
location display on the lower right hand corner of the screen.
3 Mar 93 - Added a 'default' command to reset various parameters to
their default values. Type HELP DEFAULT.
2 Mar 93 - Added a .PG command to the HPGL driver when a 'clear' command
is given. This ejects the page on some plotters and loads a blank one.
2 Mar 93 - Fixed the way log labels were plotted when noexponent was
the default. Now, regardless of the length of the label, you'll
always get the full label, i.e. 0.00000001 instead of 10 ** -8 as
before. The old behavior would plot a log axis like (10**-4, 0.001,
0.01, 0.1, 1, 10, 100, 1000, 10**4, 10**5) which was not consistent.
With 'exponent' you still get the powers of 10 all the time.
1 Mar 93 - You can now "remap" an axis even after you've plotted
data and that axis. The new mapping will be reflected in the last
plot data set and the last axis of that type plotted. Try plotting
some data and changing the map of an axis to see the effect.
1 Mar 93 - Reduced the mask area around the legend to the actual
framing area. Fixed the 'audit' command to work properly. Fixed a
bug that would show up when inputing data interactively and
specifying 'end' before actually entering points. Solid lines are
now plotted on decade boundaries in log axes.
28 Feb 93 - Fixed some problems with polynomial and spline fitting.
Modified the command 'polyfit' to list all the polynomial fitting and
correlation coefficients. Polynomial and spline fits apply to the
"latest" data set, that is, you can't fit a spline to the last spline,
only to a set of data points or function. Fixed other problems with
multiple polyfit plotting.
26 Feb 93 - The letters C and c will no longer be comment flags.
You can continue to use # to make comments in script files or
when entering data on the > prompt. (I was having trouble defining
functions like c(x)= etc.)
24 Feb 93 - Fixed a problem with the Coherent version of the 'cd'
command. Now, you can also enter filenames with the 'load' command
or directories in 'load' without quotes around them.
23 Feb 93 - After batch processing script files on the OS command line,
Graphica now remains online for further interactive processing.
19 Feb 93 - Graphica returns to the command line after 'dumping' plots
to a file rather that redrawing the entire plot. You can still redraw
what you've got by specifying 'show' after dumping.
14 Feb 93 - Fixed a small quirk when entering two commands on the
same line separated by ';'. For example, when entering 'draw x ;
draw y' you would have to press a key once before you could see the
second axis. Now Graphica recognizes the second command on the same
line and waits to process graphics until all commands have been parsed.
10 Feb 93 - Fixed a problem with the legend mask when plotting on a
non-raster device. Optimized axis drawing with a grid. Now there is
less pen changing when plotting on a plotter. Fixed a bug happening
when 'dump' was entered all by itself in a command line.
9 Feb 93 - Added 2-variable function specification and fixed a bug
reading in dummy variables.
8 Feb 93 - Added 'reverse' logarithms, in other words, you can plot log
scales going from 1000 to 1, for example (the axis minimum is 1000 on
the left and the maximum is 1 on the right).
5 Feb 93 - Fixed a problem with 'character'. Changed the help file
system a little bit so you get a list of subtopics when you've entered
an incorrect keyword.
3 Feb 93 - Changed to version 2.2 and uploaded it to CompuServe.
2 Feb 93 - Finally got around fixing the legend routines. The legend
lines weren't quite aligned when center- or right-justified. Added a
new keyword 'flat' to draw non-stacked legends Lotus 1-2-3 style. Check
out the 'legend.plt' 'and flat.plt' scripts file to see how it works.
31 Jan 93 - Added the error and complementary error functions to the
set of built-in functions. Type HELP FUNCTIONS.
30 Jan 93 - Wrote a "getch" function for COHERENT so you can press any
key to continue rather than having to press return. Check out the new
help system.
29 Jan 93 - New feature: you can now have several curves in a data file
by separating the data by blank lines. See help on FILE and the
'world.plt' example script file.
28 Jan 93 - Changed the default color to green.
22 Jan 93 - Fixed BIG BUGS when error bar and probability plotting.
21 Jan 93 - Fixed a tiny little bug with the memory allocation code
in the recall function (DOS version).
20 Jan 93 - Changed version to 2.1.
20 Jan 93 - Changed code in the COHERENT and DOS versions to read in only
help keywords when requesting help. The help text is read in from the
help file as needed. The new scheme reduces the memory requirements on
PCs. Now you can load in bigger script files!
14 Jan 93 - Ported Graphica to a Sun 4 workstation (no graphics yet).
Cleaned up the code a little bit, especially dealing with include files.
Should be easier to port to many platforms now.
3 Jan 93 - Changed the mouse routines in the DOS version to use a
software cursor (faster than using getimage/putimage).
2 Jan 93 - Added code to save text screen before going into graphics in
the DOS version. This way when you get back to text mode, previous text
will still be visible.
23 Dec 92 - Added the capability of sending output to com1 in the DOS
version. If you have a plotter connected to that communications port,
for example, you can send hpgl output directly to the plotter (without
having to DUMP to a file and then use COPY FILE COM1: at the DOS prompt.)
23 Dec 92 - Fixed a little buglet when changing terminal types and output
was sent to (stdout). 'output' now shows the correct output.
14 Dec 92 - Added further functionality to the 'format' command by
allowing user-defined tic labels. Type HELP FORMAT.
14 Dec 92 - Added the 'square-root' type to the family of axis types.
8 Dec 92 - Fixed a bug in the help command. You can abort help by
pressing q/Q/ESC. With the bug, the next help command was invalid.
24 Nov 92 - Added two fonts to the Coherent version, simplex script and
complex script.
17 Nov 92 - Fixed a bug with the probability scale. It wasn't drawing
the numeric labels in the right place when plotting an x2 or y2 axis.
12 Nov 92 - Fixed bugs in the 'mask' command. Circles and rectangles
are now being masked correctly.
9 Nov 92 - Released version 2.0 to Simtel.