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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.
#-------------------------------------------------------------------------------
package Visual::DynamicCoords;
use Polymake::Struct (
[ new => '$@' ],
[ '$source' => '#1' ],
[ '%options' => '@' ],
[ '$client_object' => 'undef' ], # opaque C++ object returned by the serving client
[ '@coord' => 'undef' ],
);
use overload 'bool' => sub { 1 },
'==' => \&refcmp,
'!=' => sub { !&refcmp },
'@{}' => sub { my ($self)=@_; $self->get_matrix };
sub merge_options {
my $self=shift;
if ($#_==0 && is_hash(my $options=shift)) {
while (my ($key, $value)=each %$options) {
$self->options->{$key} //= $value;
}
} elsif ($#_ % 2) {
while (my ($key, $value)=splice @_, 0, 2) {
$self->options->{$key} //= $value;
}
} else {
croak( "invalid option list: expected HASH or literal list of (keyword => value) pairs" );
}
}
sub feedback {} # don't consume anything
sub run {} # no action
sub closed {
my ($self)=@_;
if (defined $self->client_object) {
$self->client_object->shutdown;
}
}
sub get_matrix {
my ($self)=(@_);
$self->coord //= $self->compute;
}
1
# Local Variables:
# cperl-indent-level:3
# indent-tabs-mode:nil
# End:
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