Lühikirjeldus

Litsents

Autor Qef on andnud selle teose avalikku omandisse. See kehtib üleilmselt. Kui see pole mõnes riigis õiguslikult võimalik: Qef annab kõigile õiguse seda teost kasutada ükskõik mille jaoks, ilma ühegi tingimuseta, kui seadus neid just ei sea.

Source code

This graph was generated by the Perl program below, which was specially written for the purpose. If changes need to be made, it's probably best to tweak the program and re-run it to get a new version, rather than editing the SVG directly.

use warnings;
use strict;

# The E12 series twice over, the first time divided by 10.
my @VALUES = qw(
    1.0 1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2
    10  12  15  18  22  27  33  39  47  56  68  82
);

# Parameters to set appearance.
my $AXIS_HT = 400;
my $VERT_SCALE = 4.5;
my $BAR_WIDTH = 20;
my $BAR_GAP = 3;
my $MARGIN = 10;

my $img_wd = ($BAR_WIDTH + $BAR_GAP) * @VALUES + $BAR_GAP + 2 * $MARGIN;
my $img_ht = $AXIS_HT + 2 * $MARGIN;
my $margin_right = $img_wd - $MARGIN;
my $margin_bottom = $img_ht - $MARGIN;

my $x = $MARGIN;
my $graph_path = '';
my $text_cmds = '';
for (@VALUES) {
    $x += $BAR_GAP;
    my $bar_ht = $_ * $VERT_SCALE;
    $graph_path .= "M$x,$margin_bottom v-$bar_ht h$BAR_WIDTH v$bar_ht Z\n";
    $x += $BAR_WIDTH;
    my $bar_top = $img_ht - $bar_ht - $MARGIN + -5;
    my $txt_x = $x - 0.5 * $BAR_WIDTH + 4.5;
    $text_cmds .= "  <text transform='translate($txt_x,$bar_top) rotate(270)'" .
                  " x='0' y='0' fill='#000' text-anchor='start'>$_</text>\n";
}

print <<"END";
<?xml version="1.0" encoding="UTF-8"?>
<svg version="1.0" width="$img_wd" height="$img_ht"
     xmlns="http://www.w3.org/2000/svg">

 <defs>
  <linearGradient id="grad" x2="0%" y1="0%" y2="100%">
   <stop offset="5%" stop-color="#F00" />
   <stop offset="95%" stop-color="#F90" />
  </linearGradient>
 </defs>

 <path stroke="#000" stroke-width="1" fill="none"
       d="M$MARGIN,$MARGIN V$margin_bottom H$margin_right"/>
 <path stroke="#000" stroke-width="0.6" fill="url(#grad)" d="$graph_path"/>
 <path stroke="#333" stroke-width="0.6" fill="url(#grad)" d="$graph_path">
 </g>
</svg>
END