ovsdb/dot2pic

   1 #! /usr/bin/perl
   2
   3 # Copyright (c) 2009, 2010, 2011 Nicira, Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at:
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 use strict;
  18 use warnings;
  19
  20 my ($scale) = 1;
  21 print ".PS\n";
  22 print "linethick = 1;\n";
  23 while (<>) {
  24     if (/^graph/) {
  25         (undef, $scale) = split;
  26     } elsif (/^node/) {
  27         my (undef, $name, $x, $y, $width, $height, $label, $style, $shape, $color, $fillcolor) = split;
  28         $x *= $scale;
  29         $y *= $scale;
  30         $width *= $scale;
  31         $height *= $scale;
  32         print "linethick = ", ($style eq 'bold' ? 0.5 : 1.0), ";\n";
  33         print "box at $x,$y wid $width height $height \"$name\"\n";
  34         if ($style eq 'bold') {
  35             my $inset = 2.0 / 72.0;
  36             $width -= $inset * 2;
  37             $height -= $inset * 2;
  38             print "box at $x,$y wid $width height $height\n";
  39         }
  40     } elsif (/edge/) {
  41         my (undef, $tail, $head, $n, $rest) = split(' ', $_, 5);
  42         my @xy;
  43         for (1...$n) {
  44             my ($x, $y);
  45             ($x, $y, $rest) = split(' ', $rest, 3);
  46             push(@xy, [$x * $scale, $y * $scale]);
  47         }
  48         my ($label, $xl, $yl);
  49         if (scalar(my @junk = split(' ', $rest)) > 2) {
  50             if ($rest =~ s/^"([^"]*)"\s+//) {
  51                 $label = $1;
  52             } else {
  53                 ($label, $rest) = split(' ', $rest, 2);
  54             }
  55             ($xl, $yl, $rest) = split(' ', $rest, 3);
  56             $xl *= $scale;
  57             $yl *= $scale;
  58         }
  59         my ($style, $color) = split(' ', $rest);
  60
  61         print "linethick = ", ($style eq 'dotted' ? 0.5 : 1), ";\n";
  62
  63         print "spline -> from $xy[0][0],$xy[0][1]";
  64         for (my ($i) = 0; $i <= $#xy; $i++) {
  65             print " to $xy[$i][0],$xy[$i][1]";
  66         }
  67         print "\n";
  68
  69         print "\"$label\" at $xl,$yl\n" if defined($label);
  70     }
  71
  72 }
  73 print ".PE\n";