/usr/share/doc/libplplot12/examples/tcl/x17.tcl is in plplot-tcl-dev 5.10.0+dfsg2-0.1ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | # $Id: x17.tcl 11680 2011-03-27 17:57:51Z airwin $
#
# Copyright (C) 2009 Arjen Markus
#
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Plots a simple stripchart with four pens.
#
proc x17 {{w loopback}} {
# If db is used the plot is much more smooth. However, because of the
# async X behaviour, one does not have a real-time scripcharter.
#
# plsetopt "db" ""
# plsetopt "np" ""
# User sets up plot completely except for window and data
# Eventually settings in place when strip chart is created will be
# remembered so that multiple strip charts can be used simultaneously.
#
# Specify some reasonable defaults for ymin and ymax
# The plot will grow automatically if needed (but not shrink)
set nsteps 1000
set ymin -0.1
set ymax 0.1
# Specify initial tmin and tmax -- this determines length of window.
# Also specify maximum jump in t
# This can accomodate adaptive timesteps
set tmin 0.
set tmax 10.
set tjump 0.3 ;# percentage of plot to jump
# Axes options same as plbox.
# Only automatic tick generation and label placement allowed
# Eventually I'll make this fancier
set colbox 1
set collab 3
matrix styline i 4 = {2 3 4 5} ;# pens color and line style
matrix colline i 4 = {2 3 4 5}
set legline {"sum" "sin" "sin*noi" "sin+noi"} ;# pens legend
set xlab 0. ;# legend position
set ylab 0.25
set autoy 1 ;# autoscale y
set acc 1 ;# don't scrip, accumulate
# Initialize plplot
$w cmd pladv 0
$w cmd plvsta
$w cmd plstripc id1 "bcnst" "bcnstv" \
$tmin $tmax $tjump $ymin $ymax \
$xlab $ylab $autoy $acc \
$colbox $collab \
colline styline $legline \
"t" "" "Strip chart demo"
set autoy 0 ;# autoscale y
set acc 1 ;# accumulate
# This is to represent a loop over time
# Let's try a random walk process
set y1 0.0
set y2 0.0
set y3 0.0
set y4 0.0
set dt 0.1
for {set n 0 } {$n < $nsteps} {incr n} {
after 10 ;# Wait for 10 ms
set t [expr {double($n) * $dt}]
set noise [expr {[$w cmd plrandd] - 0.5}]
set y1 [expr {$y1 + $noise}]
set y2 [expr {sin($t*$::PLPLOT::PL_PI/18.)}]
set y3 [expr {$y2 * $noise}]
set y4 [expr {$y2 + $noise/3.}]
# There is no need for all pens to have the same number of
# points or being equally time spaced.
if { $n%2 } {
$w cmd plstripa $id1 0 $t $y1
}
if { $n%3 } {
$w cmd plstripa $id1 1 $t $y2
}
if { $n%4 } {
$w cmd plstripa $id1 2 $t $y3
}
if { $n%5 } {
$w cmd plstripa $id1 3 $t $y4
}
#$w cmd pleop ;# use double buffer (-db on command line)
}
# Destroy strip chart and it's memory
$w cmd plstripd $id1
# Restore defaults
$w cmd pllsty 1
}
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