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# Copyright (c) 1997-2024
# Ewgenij Gawrilow, Michael Joswig, and the polymake team
# Technische Universität Berlin, Germany
# https://polymake.org
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# This program 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 General Public License for more details.
#-------------------------------------------------------------------------------
# pretty matrix output
sub pretty_matrix($;$){
my ($M, $options) = @_;
# set defaults for options
my $spaces = " ";
if (defined($options->{"spaces"})) {
$spaces= " " x $options->{"spaces"};
}
my @len = (0) x $M->cols();
for (my $j=0; $j<$M->cols(); ++$j) {
for (my $i=0; $i<$M->rows(); ++$i){
$len[$j] = max($len[$j], length($M->elem($i,$j)));
}
}
for (my $i=0; $i<$M->rows(); ++$i) {
for (my $j=0; $j<$M->cols(); ++$j) {
my $collen = $len[$j];
printf("%${collen}s%s", $M->elem($i,$j), $spaces);
}
print "\n";
}
}
# pretty sign matrix output
sub sign_matrix($){
my ($M) = @_;
for (my $i=0; $i<$M->rows(); ++$i) {
for (my $j=0; $j<$M->cols(); ++$j) {
if ($M->elem($i,$j) == 0) {
print " ";
} else {
my $sgn = $M->elem($i,$j) > 0 ? "+ " : "- ";
print $sgn;
}
}
print "\n";
}
}
# Local Variables:
# mode: perl
# cperl-indent-level:2
# indent-tabs-mode:nil
# End:
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