INTRODUCTION

Remember how excited we got the first time we used 1-2-3 (or some other
spreadsheet) to plot our data?  It seemed so much easier than what we were
used to before.  But power is addicting.  Soon we found it a pain to massage
the data.  To zoom in on a section of the data was painful.

Well, 321PLOT provides a simple and FAST way to obtain line plots of your
scientific data.  Using simple ASCII format input, you can:

*  Obtain color display plots of up to 6 tables of data
*  Flexibly and interactively scale the data to zoom into any section
*  Print the graph as it is displayed on any of the following printers (or
   compatible) - Note: Provided for registered users only

EPSON 9 PIN         HP DeskJet 500C      HP 7440 PLOTTER 
EPSON 24 PIN        HP PaintJet          HP 7470 PLOTTER 
HP LaserJet 100     HP Thinkjet          HP 7475A FOR
HP LaserJet 150     HPGL                 LASERJET 3 
HP LaserJet 300     HP 7475A PLOTTER     Postscript 
HP DeskJet          HP 7550 PLOTTER

*  Format the data as lines, symbols, or lines and symbols
*  Label the graph, each axis, and each line
*  Interactively turn on/off lines on the plot
*  View with a grid or without

HOW TO SET UP THE DATA

321PLOT takes a simple ASCII data file of the following format:

Line 1:     Plot Title 
Line 2:     X axis Title
Line 3:     Y axis Title
Line 4:     Comma delimited names of each data column
Line 5:     Maximum # of data points and [optionally] delta X.  If the delta X
            is not specified, the first column will be used as the X axis.  In
            this mode, x axis data need not be monotonic.
Line 6:     Comma delimited data points. Each column of data will represent
            one line.

The following represents a data fragment taken from EXAMPLE.DAT included with
this package:

   Graph Title
   X Title
   y Title
   Line 1,Line 2,Line 3, Line 4, Line 5, Line 6
   56,0.5
   1,2,3,4,5,6
   2,3,4,5,6,6
   3,4,5,6,7,6
   4,5,6,7,7,6
   5,6,7,8,7,6

Where in this sample,
   "Graph Title" is just what it says
   "X Title" is the title on the X axis
   "Y Title" is the title on the Y axis
   "Line 1,..." are the titles of the lines
   "56,0.5" indicates to read no more than 56 lines of data and says that each
   line represents 0.5 increment on the X axis.
   "1,2,3,4,5,6" represents the six lines of data

RESTRICTIONS

All columns must have the same number of data points.
No more than 16,000 data points can be specified per column.
If only three lines titles are defined on line 4, only three columns of data
will be plotted.

HOW TO USE 321PLOT

How to Start 321PLOT
   From the DOS prompt, enter:

      321PLOT filename.ext

         where filename.ext is the filename containing the ASCII data defined
         above.

How to Turn On/Off certain data lines
   Use the function keys F1 through F6 to toggle the On/Off status of each
   column.  Since 321PLOT automatically scales each plot, turning off certain
   data lines may enable you to change the full scale.

   Data Lines turned off will not be displayed or printed.

How to Format
   321PLOT allows you to use either lines, symbols or both to plot your data. 
   This affects printing and displaying.  Use F7 to toggle formatting.

How to turn the Grid Off
   F8 toggles the status of the Grid.


How to Display the Full Scale Plot
   F9 allows you to display the full scale results of the selected data.  This
   may change depending on which data is selected.

How to Zoom in on selected portions of the plot
   Using the F10 key, 321PLOT allows you to set Scale mode to:
      Minimum X axis
      Minimum Y axis
      Maximum X axis
      Maximum Y axis
      Center the Data

   Once the Scale mode is selected, you may enter the data numerically (only
   within the range displayed) or use the arrow keys to change the scale.  In
   this way you can easily Zoom in and out of selected regions of data.

How to Print (For Registered users only)
   Use the "P" key to print your plot to LPT1:.  You may select different
   printers using the environment variable PLOT_NUM.  At the DOS prompt, type:

      SET PLOT_NUM=X

         where X represents your printer from the following list:

EPSON 9 PIN driver mode definitions 
0 60 x 72 dpi 
1 120 x 72 dpi 
2 240 x 216 dpi 

EPSON 24 PIN driver mode definitions 
3 LQ 180x180 dpi 
4 LQ 180X360 dpi 
5 LQ 360x360 dpi 

HP LaserJet driver mode definitions 
Also applies to HP DeskJet B&W modes 
6 HP LaserJet 100 dpi 
7 HP LaserJet 150 dpi 
8 HP LaserJet 300 dpi 

HP DeskJet 500C driver mode definitions 
9  100 dpi B&W
10 150 dpi B&W
11 300 dpi B&W

HP PaintJet driver mode definitions 
12 90 dpi B&W  
13 180 dpi B&W
14 90 dpi B&W
15 180 dpi B&W
16 180 dpi B&W, PaintJet XL only 

17 HP Thinkjet 

HP 7475A PLOTTER 
18 A size paper 
19 B size paper 
20 A4 size paper 
21 A3 size paper 

HP 7550 PLOTTER 
22 A size paper 
23 B size paper 
24 A4 size paper 
25 A3 size paper 

HP 7440 PLOTTER 
26 A4 size paper 

HP 7470 PLOTTER 
27 A3 size paper 

HP 7475A FOR LASERJET 3 
28 HPLJ_HPGL_A          
29 HPLJ_HPGL_B          

Postscript driver mode definitions 
30 PS_COURIER     
31 PS_HELV        
32 PS_TIMES    
33 PS_SYM         

How to obtain 321PLOT help

From the plot screen, type the "H" key to obtain 321PLOT help.  Use the <Esc>
to exit help.

How to exit 321PLOT

From the plot screen, type the <ESC> key.
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