Plotting A Sine Curve Inside A Bash Shell... Post: 302914574

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Operating Systems OS X (Apple) Plotting A Sine Curve Inside A Bash Shell... Post 302914574 by wisecracker on Tuesday 26th of August 2014 05:47:42 PM

08-26-2014

Registered User

Hi Corona688...

Hmm, neat.

I never considered using 'awk' in its entirety.

Although I have used 'amplitude' and 'centreline' values to plot inside the terminal I intend to use character 32 (space) and 126 (tilde) as the pk-pk amplitude(s) and "N" or "O" as the centreline. This then makes the whole waveform fully editable in any text mode editor. ;o)

I never even considered how Windows would react under my version as I was more interested in a calculator as a 'bc' replacement for CygWin.

I seem to remember you pointing out how badly Windows reacts to many fork()s in a thread since gone.

Thanks for your creation. Once I have gotten to grips with it consider it stolen... ;oD

wisecracker

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LEARN ABOUT V7

plot

PLOT(3X)																  PLOT(3X)

NAME

       plot: openpl et al. - graphics interface

SYNOPSIS

       openpl( )

       erase( )

       label(s) char s[ ];

       line(x1, y1, x2, y2)

       circle(x, y, r)

       arc(x, y, x0, y0, x1, y1)

       move(x, y)

       cont(x, y)

       point(x, y)

       linemod(s) char s[ ];

       space(x0, y0, x1, y1)

       closepl( )

DESCRIPTION

       These  subroutines  generate  graphic  output  in  a  relatively device-independent manner.  See plot(5) for a description of their effect.
       Openpl must be used before any of the others to open the device for writing.  Closepl flushes the output.

       String arguments to label and linemod are null-terminated, and do not contain newlines.

       Various flavors of these functions exist for different output devices.  They are obtained by the following ld(1) options:

       -lplot  device-independent graphics stream on standard output for plot(1) filters
       -l300   GSI 300 terminal
       -l300s  GSI 300S terminal
       -l450   DASI 450 terminal
       -l4014  Tektronix 4014 terminal

SEE ALSO

       plot(5), plot(1), graph(1)

																	  PLOT(3X)