added method and option yrange.

fixed postscript test (probably broken because of new gnuplot version)

TimeSeries.pm

@@ -33,7 +33,7 @@ use HTTP::Date qw(parse_date);
 use Time::Local qw(timegm_nocheck);
 use POSIX qw(strftime);
 
-our $VERSION = do { my @r=(q$Revision: 1.20 $=~/\d+/g);sprintf "%d."."%02d"x$#r,@r};
+our $VERSION = do { my @r=(q$Revision: 1.21 $=~/\d+/g);sprintf "%d."."%02d"x$#r,@r};
 
 our $debug;
 
@@ -276,6 +276,22 @@ sub finalresolution {
 }
 
 
+=head2 yrange([$ymin, $ymax]) 
+
+Set the y range. If either $ymin or $ymax is undef it is automatically
+determined.
+
+=cut
+
+sub yrange {
+    my ($self, $ymin, $ymax) = @_;
+    if (@_ == 3) {
+        $self->{yrange} = [ $ymin, $ymax ];
+    }
+    return $self->{yrange} ? @{ $self->{yrange} } : ();
+}
+
+
 
 =head2 dstcorr $time [, $period]
 
@@ -358,6 +374,7 @@ sub plot {
     print $ctlfh "set log y\n" if ($self->{log_y});
     print $ctlfh "set key $self->{legend_position}\n" if ($self->{legend_position});
     print $ctlfh "set datafile missing '?'\n";
+    print $ctlfh "set yrange [", $self->{yrange}[0] // "*", ":", $self->{yrange}[1] // "*", "]\n";
 
     my $firsttime = $self->{data}[0][0];
     my $lasttime = $self->{data}[$#{$self->{data}}][0];

t/3missing.t

@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use warnings;
 use strict;
-use Test::More tests => 3;
+use Test::More tests => 4;
 
 BEGIN { use_ok( 'TimeSeries' ); }
 
@@ -25,7 +25,7 @@ my $p = $ts->plot();
 # open(my $fh, '>:raw', "t/3missing.ps");
 # print $fh $p;
 # close($fh);
-my $t = "
+my $t1 = "
 LT0
 6607 4807 M
 303 0 V
@@ -35,17 +35,15 @@ LT0
 4823 2940 M
 5927 4920 L
 7030 960 L
-1.000 UL
-LTb
-410 960 M
+";
+
+my $t2 = "
 6620 0 V
 0 3960 V
 -6620 0 V
-410 960 L
-1.000 UP
-stroke
 ";
-ok(index($p, $t) != -1,		'postscript output looks ok');
+ok(index($p, $t1) != -1,	'postscript output contains line');
+ok(index($p, $t2) != -1,	'postscript output contains box');
 
 #vim:tw=0
 

tsplot

@@ -17,6 +17,7 @@ tsplotv
 [--style style]
 [--time_t]
 [--tsv]
+[--yrange min max]
 [file ...]
 
 =head1 DESCRIPTION
@@ -52,13 +53,16 @@ my $time_t =0;
 my $style = "lines";
 my $tsv   = 0;
 my $stacked = 0;
+my @yrange;
 my $keeptempfiles;
+
 GetOptions('output_format|output-format=s' => \$output_format,
 	   'log_y|log-y'		   => \$log_y,
 	   'time_t'			   => \$time_t,
 	   'style:s'			   => \$style,
 	   'tsv'			   => \$tsv,
 	   'stacked'			   => \$stacked,
+	   'yrange:s{2}'		   => \@yrange,
 	   'keeptempfiles'		   => \$keeptempfiles,
           ) 
     or pod2usage(verbose => 0);
@@ -88,6 +92,7 @@ while (<>) {
 $ts->log_y($log_y);
 $ts->style($style);
 $ts->stacked($stacked);
+$ts->yrange(@yrange);
 
 my $g = $ts->plot();
 print $g