home *** CD-ROM | disk | FTP | other *** search
- LASER GRAPHICS PROGRAM DOCUMENTATION FILE
-
- This graphics package provides an easy means of generating data plots. To
- use this software, copy all of the files into a sub-directory on your hard
- disk. It is best to create a separate subdirectory for these programs. Then
- unpack the programs from the archived LG_EXE*.ZIP files. You will need to use
- PKUNZIP or an equivalent program to do this. After uncompressing the files,
- type INSTALL and answer all questions. The programs will then be installed
- and ready to use. Type in PLOTHELP and read the OVERVIEW topic, and then
- run the demo program by typing in DEMO. Then run some of the example plots
- as directed in PLOTHELP topic EXAMPLES. Beyond this brief introduction, read
- the printed documentation and the help files.
-
- If you have also downloaded the LG_DOC*.ZIP files, you may uncompress them
- and print the manual using an HP Laserjet. To print the files, do not use
- the PRINT command; instead copy the files to the printer using the copy
- command:
- COPY /B G3*.HP LPT1:
- Do not omit the /B option! If you do, the files will be incompletely printed.
- Be forewarned that the documentation is over 100 pages long, and includes
- example plots imbedded in the document. It will take 20 minutes or more to
- print. Note that the documentation files are also in .zip form and must
- be unzipped.
-
-
- Function: To generate plots of various types.
-
- System requirements: PC or compatible,
- Graphics screen: CGA, EGA, VGA, or HGC
- Memory: 512 K or more
- Printer: Epson 8 or 24 pin
- C. Itoh Prowriter
- HP Laserjet
- Dos: Version 3.0 or higher
- Math Coprocessor: Not necessary, but used if present
- Hard disk: Required
-
- Plot types: Single line plots
- Multiple line plots
- Three dimensional perspective plots
- X-Y plots
- Polar Plots
- Scatter diagrams
- Vector diagrams
-
- Output: High resolution plot generation (up to approximately
- 2400 by 3000 pixels)
- Low resolution screen dumps
- Save screen plots to disk file
- Plot disk files compatible with some word processors
-
- Additional Features: Gallery program to review previously generated plots
- Hidden line removal on three dimensional plots
- Optional axis auto-scaling
- Optional user-defined axis numbering and tic marks
- Automatic conversion to log scale
- Automatic error bars
- Split screens (multiple plots per page)
- Disk paging if bit-map is too large for RAM
- Support for Hewlett-Packard Laserjet format soft-fonts
- Can be used as graphics driver
-
- Advantages: The programs are simple enough to plot a data file
- with a single command, yet powerful enough to generate
- very high-quality plots on a laser printer.
-
- Virtually all plot characteristics may be user defined,
- but default settings are included so that the user does
- not need to bother with unnecessary details.
-
- All plot commands may be entered on the DOS command line.
- This allows a string of plot commands to be put in a
- batch file for execution without requiring constant user
- intervention.
-
- Disadvanteges: Slow operation for some plots: For high-resolution
- plots, the number of pixels which must be handled
- can be tremendous. For example, a 2000 by 2500 pixel
- laser printer plot will have five million pixels which
- must be accounted for. On a basic 4.77 Mhz 8088
- computer, handling this many pixels can take an
- annoyingly long time. Even for a low-resolution plot,
- a large data file and slow disk drive will slow things
- down.
-
- Relatively steep "learning curve": the software was
- written to be very easy to use. This was accomplished
- at the expense of making it less easy to learn. It is
- hoped that the help files and demo will ease the novice's
- difficulties.
-
- Liability: The software is provided as is; the authors assume
- no liability for any problems or expenses arising
- from its use or misuse.
-
- Documentation: On-line help files
- Printed documentation will be sent to registered users
-
- Licensing: Any user, registered or not, may use and distribute this
- software at will, provided:
-
- 1) the software is not modified,
- 2) no part of the software is sold for a charge
- exceeding a nominal copying charge.
-
- When copying the software, please distribute only the
- original archived files (LG*.ZIP) and this file
- (LG_READ.ME). This ensures that all users will obtain
- a full working copy.
-
- Registration: If you find this software to be useful, a $49
- contribution will be appreciated. Users contributing
- this amount will receive the next update of Laser
- Graphics.
-
- Registration may be mailed to:
-
- J. M. Baden
- 1500 Mill Creek Court
- Marietta GA 30060
-
- When registering, please specify the following:
-
- 1) Laser Graphics version you presently have
- 2) Preferred disk media for update (5.25" 360K or
- 1.2M, or 3.5" 720K or 1.44M).
- 3) Your address
-