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- **************************************************************************
-
- MultiPlot
- Copyright (C) 1987 Tim Mooney
-
- MultiPlot is in the public domain. It is intended to
- be available free to anyone who wants it. You may use and
- distribute it as you like with the following restrictions:
-
- 1) You may not sell this software or charge more than a
- small copying/hassle fee for distributing it.
-
- 2) You may not remove this notice from the distribution.
-
- Tim Mooney
- 5904 Vandegrift Ave.
- Rockville, MD 20851
-
- ****************************************************************************
-
- MultiPlot plots data embedded in a text file. You tell MultiPlot in
- which "columns" to expect numbers to plot. MultiPlot reads the file, looking
- for lines containing numbers in all of those "columns". (The first word on a
- line is, by definition here, in "column" 1.) When such a line is found,
- MultiPlot begins to store the numbers in arrays. If, while accumulating an
- array of data, a line is found which doesn't contain numbers in all the
- target "columns", the array is set aside and MultiPlot continues reading,
- looking for more data. Any number of plots can be accumulated in this way.
- Numbers may be real, integer, or mixed.
-
- ***************************************************************************
- CALLING UP THE PROGRAM
-
- MultiPlot is run from the CLI with the following command:
-
- MultiPlot [flags] filename
-
- The flags tell MultiPlot where, in the file, to look for numbers it
- can plot. Let's say the file to be plotted is called "plotme.dat", and
- the lines in this file which contain data look like:
-
- x y err_in_y
- . . .
- . . .
- . . .
-
- Some command line examples for this file:
-
- 1) MultiPlot plotme.dat
-
- THIS TELLS MultiPlot TO USE DEFAULTS FOR THE COLUMN NUMBERS.
- MultiPlot ASSUMES THE FIRST COLUMN IS X DATA, AND THE SECOND
- COLUMN IS Y DATA.
-
- 2) MultiPlot -x1y2 plotme.dat
-
- THIS MEANS EXACTLY THE SAME THING AS (1)
-
- 3) MultiPlot -x1y2e3 plotme.dat
-
- THE FIRST COLUMN IS X DATA, THE SECOND IS Y DATA, AND THE
- THIRD IS ERROR_IN_Y DATA. (MultiPlot DOESN'T COLLECT
- ERROR_IN_Y DATA UNLESS YOU TELL IT TO.)
-
- 4) MultiPlot -x0y1 plotme.dat
-
- HERE IS SOMETHING NEW. THIS SAYS THAT X DATA ARE IN COLUMN
- 0. THERE IS NO COLUMN 0, HOWEVER. MultiPlot UNDERSTANDS
- THAT THE FILE CONTAINS NO X DATA, AND USES LINE NUMBERS --
- RELATIVE TO THE BEGINNING OF A LIST -- FOR X.
-
- 5) MultiPlot -e plotme.dat
-
- THIS USES A LOT OF DEFAULTS: X IS ASSUMED TO BE IN COLUMN 1
- SINCE NO -X FLAG OCCURS; Y IS ASSUMED TO BE IN THE NEXT
- COLUMN SINCE NO -Y FLAG OCCURS. THE COMMAND LINE SAYS
- THAT THE FILE CONTAINS ERROR_IN_Y DATA, BUT DOESN'T SAY
- WHERE; THE DEFAULT IS THE COLUMN AFTER THE Y DATA. WE
- COULD HAVE GOTTEN THE SAME RESULT WITH
- "MultiPlot -x1y2e3 plotme.dat".
-
-
- **************************************************************************
- SPECIFYING THE DISPLAY OF COLLECTED DATA
-
- When the file has been read, MultiPlot tells you how many lists of
- numbers it found and asks how to plot the data. You choose which lists and
- how the chosen lists are to be plotted. For each list, you can choose a
- color or accept a default color. You can choose a line plot, a point plot,
- or both for any list. If your choice includes a point plot, you can choose a
- point size. (Defaults exist for every choice.)
-
- The line of text you type to tell MultiPlot how to plot the data is
- called a "HowTo string". The syntax is tersely described in the instructions
- you can get interactively by typing "?". I'm not going to repeat all the
- details here, but I will give examples which can be used with the sample data
- file "plotme.dat".
-
- 1) carriage return
-
- THIS GETS A DEFAULT FOR ALL ACCUMULATED LISTS: LINE PLOTS IN
- COLORS BEGINNING WITH 0 AND INCREASING.
-
- 2) !p
-
- THIS GETS A POINT PLOT FOR ALL LISTS. THE POINT SIZE IS 4
- (DEFAULT). THE COLORS BEGIN WITH 0 AND INCREASE.
-
- 3) 1p 2p 3p 4p
-
- THIS GETS POINT PLOTS FOR THE FIRST FOUR LISTS AND NO PLOT FOR THE
- REST. THE COLORS ARE 1 2 3 4. THE POINT SIZE IS 4.
-
- 4) p1 p2 p3 p4
-
- THIS GETS POINT PLOTS IN DEFAULT COLORS FOR THE FIRST FOUR LISTS
- AND NO PLOT FOR THE REST. THE POINT SIZE IS 1 (MINIMUM) FOR THE
- FIRST PLOT, 2 FOR THE SECOND...
-
- 5) 1l 1l 1l 1l
-
- THIS GETS LINE PLOTS FOR THE FIRST FOUR LISTS AND NO PLOT FOR THE
- REST. ALL PLOTS ARE IN COLOR 1.
-
- 6) 0p 1p 2p 3p 0l 1l 2l 3l
-
- THIS GETS POINT PLOTS FOR THE FIRST FOUR LISTS AND LINE PLOTS FOR
- THE NEXT FOUR. THE POINT SIZE IS 4 SINCE IT IS NOT SPECIFIED.
- THIS IS MY PERSONAL FAVORITE FOR THIS FILE SINCE THE FILE
- COMPRISES FOUR LISTS OF DATA AND FOUR LISTS OF FITS TO THAT DATA.
-
- 7) 0p - - - 1l
-
- THIS GETS A POINT PLOT IN COLOR 0 OF THE FIRST LIST AND A LINE
- PLOT IN COLOR 1 OF THE FIFTH LIST. NO OTHER LISTS ARE PLOTTED.
- THE POINT SIZE IS 4.
-
-
- 8) - 0p - - - 1l
-
- THIS GETS A POINT PLOT FOR THE SECOND LIST AND A LINE PLOT FOR THE
- SIXTH. OTHERWISE, THIS IS THE SAME AS (7)
-
-
- There are more things you can specify about the plot. I went a
- little crazy putting in options and still there are things left out.
- This will get you started.
-
-
- **************************************************************************
- MENUS, ETC.
-
- Once you have a plot on the screen, you can zoom in and out, call up
- a crosshair, and generally have a splashing time peering at your data from
- close in, far away, etc. Using the "Make PltFile" item from the "Project"
- menu, you can write the display to a file that can then be sent to a (HPGL)
- plotter via something like
-
- "COPY MYFILE.PLT0 TO SER:"
-
- You can also export the full plot to IntroCAD by a two-step process:
-
- 1) Select "Make TXTFile" from the "Project" menu;
- This creates a file called (in the current example) "myfile.txt0", which is
- a text file that can easily be translated to an IntroCAD file.
-
- 2) run txt_2_icad from the CLI with a command like:
-
- "txt_2_icad myfile.txt0 myfile.cad"
-
-