I am having problems getting GD::Graph to function. It seems to have issues constructing graphs when all of the datapoints are the same. This example code works:
#!/usr/local/perl-5.8.3/bin/perl

use warnings;
use strict;

use GD::Graph::lines;

my @data = (
    [ qw/ 1 2 3 / ],
    [ qw/ -70 -70 -71 / ],
);

my $graph = GD::Graph::lines -> new ( 200, 200 );

$graph -> set(
    x_label => 'x',
    y_label => 'y',
    title   => 'title',
);

$graph -> plot ( \@data );

[download]
while the following code does not:
#!/usr/local/perl-5.8.3/bin/perl

use warnings;
use strict;

use GD::Graph::lines;

my @data = (
    [ qw/ 1 2 3 / ],
    [ qw/ -70 -70 -70 / ],
);

my $graph = GD::Graph::lines -> new ( 200, 200 );

$graph -> set(
    x_label => 'x',
    y_label => 'y',
    title   => 'title',
);

$graph -> plot ( \@data );

[download]
The second code will run forever (over 5 minutes) and the only difference is the datapoints given. To give some variety, I tried creating an additional datapoint that was `undef' but the results were the same. Is this an issue with the module?

perl 5.8.3
GD 1.18
GD::Text 0.86
GD::Graph 1.43
libgd 1.8.4-11

Thanks in advance

In reply to GD::Graph issue with similar datapoints by narse

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