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# Copyright (c) 1997-2015
# Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
# http://www.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::Lattice;
use Polymake::Struct (
[ '@ISA' => 'Graph' ],
[ '$NodeLabels' => '$this->create_node_labels(#%)', default =>'undef' ],
[ '$NodeColor' => 'unify_decor(#%)', default => 'undef' ],
[ '$NodeBorderColor' => 'unify_decor(#%)', default => '"0 0 0"' ],
[ '$top_node' => '#%', default => 'undef' ],
[ '$Mode' => '#%', default => '"primal"' ],
[ '$Faces' => '#%', default => 'croak("Faces missing")' ],
[ '$AtomLabels' => '#%', default => 'undef' ],
);
sub create_node_labels {
my ($self, undef, $labels) = @_;
if(!defined($labels)){
$labels =[ " ", # top node
do {
if (defined($self->AtomLabels)) {
my @atom_labels=@{$self->AtomLabels};
my $n=0;
foreach (@atom_labels) { s/^_.*/\#$n/; ++$n; }
map { join(" ", @atom_labels[@{$self->Faces->[$_]}]) } 1..$#{$self->Faces}-1
} else {
map { join(" ", @{$self->Faces->[$_]}) } 1..$#{$self->Faces}-1
}
},
" " # bottom node
];
}
sub { $labels->[shift] }
}
# $matching -> HasseDiagram with boolean edge attributes, like MORSE_MATCHING
sub add_matching {
my ($self, $matching, $decor)=@_;
my @hd = @$matching;
shift @hd; pop @hd;
$hd[0] =~ s/^<//;
my (%edge_color, %edge_style, %arrow_style);
my $matched_color=$decor->{EdgeColor};
my $matched_style=$decor->{EdgeStyle};
my $n=0;
foreach (@hd) {
my ($face, $edges) = m/^\(\{ (.*?) \} \s+ \{ (.*?) \}\)$/x;
my @edges = $edges =~ m/\( (\d+) \s+ ([01]) \)/gx;
while (my ($to_node, $matched) = splice @edges, 0, 2) {
if ($matched) {
$edge_color{"$n $to_node"} = $matched_color if defined $matched_color;
$edge_style{"$n $to_node"} = $matched_style if defined $matched_style;
$arrow_style{"$n $to_node"} = -1;
} else {
$arrow_style{"$n $to_node"} = 1;
}
}
++$n;
}
local_scalar($self->EdgeStyleSymmetric,-1);
$self->merge( ArrowStyle => \%arrow_style );
$self->EdgeStyleSymmetric=1;
$self->merge( defined($matched_color) ? (EdgeColor => \%edge_color) : (),
defined($matched_style) ? (EdgeStyle => \%edge_style) : () );
}
sub add_faces {
my ($self, $HD, $faces, $decor)=@_;
my (@node_color, @node_style);
my $matched_color=$decor->{NodeColor};
my $matched_style=$decor->{NodeStyle};
for (my ($n,$last)=(1, $HD->ADJACENCY->nodes-2); $n<=$last; ++$n) {
foreach my $face (@$subcomplex) {
if ($HD->FACES->[$n]==$face) {
$node_color[$n]=$matched_color if defined $matched_color;
$node_style[$n]=$matched_style if defined $matched_style;
}
}
}
$self->merge( defined($matched_color) ? (NodeColor => \@node_color) : (),
defined($matched_style) ? (NodeStyle => \@node_style) : () );
}
sub add_subcomplex {
my ($self, $HD, $subcomplex, $decor)=@_;
# show_filter: mark HD faces including faces of the given subcomplex
# !show_filter: mark faces of the subcomplex and their subfaces
my $want_incl= delete $decor->{show_filter} ? 1 : -1;
my ($marked_nodes, $marked_edges)=$self->add_decor_filters($HD->ADJACENCY, $decor);
for (my ($n,$last)=(1, $HD->ADJACENCY->nodes-2); $n<=$last; ++$n) {
foreach my $face (@$subcomplex) {
my $incl=incl($HD->FACES->[$n], $face);
next if $incl && $incl!=$want_incl;
if (defined $marked_nodes) {
$marked_nodes->{$n}=1;
}
if (defined $marked_edges) {
if ($want_incl>0) {
for (my $e=args::entire($HD->ADJACENCY->out_edges($n)); $e; ++$e) {
$marked_edges->{$$e}=1;
}
} else {
for (my $e=args::entire($HD->ADJACENCY->in_edges($n)); $e; ++$e) {
$marked_edges->{$$e}=1;
}
}
}
}
}
}
1;
# Local Variables:
# mode: perl
# c-basic-offset:3
# End:
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