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Full Discussion: My first PERL incarnation... Audio Oscillograph
Top Forums Programming My first PERL incarnation... Audio Oscillograph Post 303038002 by wisecracker on Tuesday 20th of August 2019 02:18:10 PM
Old 08-20-2019
Hi MadeInGermany...

I didn't try the Perl builtin 'printf' as 'print' DID support terminal colours, so I made an assumption that 'printf' wouldn't plot either.

I will experiment with plotting using 'printf' and get back to you.
If I get stuck and plotting is still unable to be done then I will come back on here for solutions.

TIA.

EDIT:
Well a cold start with the builtin 'print' DOES work but believe me, I tried for hours with hard coded valus as well is variables and I kept getting an major 'scalar' error report finally ending up saying it couldn't complie the code - hence reverting to the 'system' command.

I honestly do not know why I kept getting major errors when now it is working..

Here is the original test code i couldn't get working, but it is actually calling me a liar now.
Code:
#!/usr/bin/perl
# plotter.pl

use warnings;
use strict;

# Centre of terminal window.
my $horiz=34;
my $vert=11;
my $plotter="\033["."$vert".";"."$horiz"."fHello World.\n";
print "$plotter";

And finally I am in the process of using 4 capture modes, DEMO, DSP, ALSA and QT, (DEMO is obviously working using the builtin random number generator but the final cut will create a raw 'noise' file using /dev/urandom).
I have already done the section to create the AppleScript and call it, but not done the binary file to byte sized decmial array or list yet but I am working on it...
Last edited by wisecracker; 08-20-2019 at 03:58 PM.. Reason: See EDIT:
 

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LEARN ABOUT ULTRIX

plot

plot(1g)																  plot(1g)

Name
       plot - graphics filters

Syntax
       plot [-Tterminal[raster]] [-l#] [-w#] [-c#]

Description
       The command reads plotting instructions from the standard input and produces plotting instructions for a specified terminal on the standard
       output.	For further information see

Options
       The following options are available with the command.

       -Tterminal     Uses the specified terminal name as the terminal type for which plotting instructions are to be generated.   If  a  terminal
		      type  is	not  specified, the environment parameter $TERM is used. For more information, see The terminal type can be one of
		      the following:

		      450      DASI Hyterm 450 terminal (diablo mechanism).

		      300      DASI 300 or GSI terminal (diablo mechanism).

		      300S     DASI 300S terminal (diablo mechanism).

		      4014 or tek
			       Tektronix 4014 or 4015 with Enhanced Graphics Module.  (Use 4013 for Tektronix 4014 or Tektronix 4015  without  the
			       Enhanced Graphics Module).

		      4013     Tektronix 4013 Storage scope

		      aed      AED 512 color graphics terminal

		      bitgraph or bg
			       BBN bitgraph graphics terminal

		      crt      Any crt capable of running

		      dumb     dumb terminals without cursor addressing or line printers

		      grn      given a plot file, produces a grn file.

		      hp7221   Hewlett Packard 7221 Graphics terminal.

		      hp2648   Hewlett Packard 2648 Graphics terminal.

		      imagen or ip
			       Imagen laser printer (default 240 DPI resolution).

		      lvp16    DEC LVP16 Graphics Plotter.

		      hp7475a  HP 7475A Graphics Plotter.

		      ver      Versatec  D1200A printer-plotter. This version of places a scan-converted image in and sends the result directly to
			       the plotter device rather than to the standard output.  The optional argument causes  a	previously  scan-converted
			       file raster to be sent to the plotter.

		      var      Benson Varian printer-plotter.

		      vt125    DEC vt125 terminal.

       raster	      Is  a  scan-converted temporary file that is sent directly to the plotter.  The raster file is only specified with the -Tver
		      option.

       If terminal is either an lvp16 or a hp7475a, you can specify the following options.  These options must follow the -Tterminal option:

       -l#	      length of paper window in plotter units (unit scale)

       -w#	      width of paper window in plotter units (unit scale)

       -c#	      initial pen carousel to be used

Restrictions
       A lockout protection does not exist for

Files
       /usr/bin/t4013
       /usr/bin/aedplot
       /usr/bin/bgplot
       /usr/bin/crtplot
       /usr/bin/dumbplot
       /usr/bin/gigiplot
       /usr/bin/grnplot
       /usr/bin/hpplot
       /usr/bin/hp7221plot
       /usr/bin/implot
       /usr/bin/lvp16
       /usr/bin/tek
       /usr/bin/t450
       /usr/bin/t300
       /usr/bin/t300s
       /usr/bin/vplot
       /usr/tmp/raster

See Also
       graph(1g), plot(3x), plot(5)

																	  plot(1g)
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