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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.
#-------------------------------------------------------------------------------
# == SUMMARY ==
# - In tropical::Polytope:
# * PSEUDOVERTICES have changed their semantics. The old meaning was a copy of DOME.VERTICES
# * properties related to PSEUDOVERTICES in its old meaning are moved into DOME
# * FAR_PSEUDOVERTICES is a copy of DOME.FAR_VERTICES
# * PSEUDOVERTICES now only include the rows of DOME.VERTICES with first coordinate "1" (and omits that coordinate)
upgrade 4.13.1 tropical::Polytope {
my ($obj) = @_;
my $changed = 0;
if (exists $obj->{"MAXIMAL_COVECTOR_CELLS"}) {
move_property($obj, "MAXIMAL_COVECTOR_CELLS", $obj->{"DOME"}, "MAXIMAL_COVECTOR_CELLS");
$changed = 1;
}
if (exists $obj->{"POLYTOPE_MAXIMAL_COVECTOR_CELLS"}) {
move_property($obj, "POLYTOPE_MAXIMAL_COVECTOR_CELLS", $obj->{"DOME"}, "TROPICAL_SPAN_MAXIMAL_COVECTOR_CELLS");
$changed = 1;
}
if (exists $obj->{"POLYTOPE_PSEUDOVERTICES"}) {
move_property($obj, "POLYTOPE_PSEUDOVERTICES", $obj->{"DOME"}, "TROPICAL_POLYTOPE_VERTICES");
}
if (exists $obj->{"PSEUDOVERTICES"}) {
my $PV = $obj->{"PSEUDOVERTICES"};
my $n = scalar @{$PV} - 1;
my $d = scalar @{$PV->[0]} - 1;
my @actual_PV_indices = grep { $PV->[$_]->[0] eq "1" } 0..$n;
$obj->{"PSEUDOVERTICES"} = [map { [@{$PV->[$_]}[1..$d]] } @actual_PV_indices];
$changed = 1;
if (exists $obj->{"PSEUDOVERTEX_COVECTORS"} ) {
move_property($obj, "PSEUDOVERTEX_COVECTORS", $obj->{"DOME"}, "VERTEX_COVECTORS");
$obj->{"PSEUDOVERTEX_COVECTORS"} = [@{$obj->{"DOME"}->{"VERTEX_COVECTORS"}}[@actual_PV_indices]];
}
if (exists $obj->{"PSEUDOVERTEX_COARSE_COVECTORS"} ) {
$obj->{"PSEUDOVERTEX_COARSE_COVECTORS"} = [@{$obj->{"PSEUDOVERTEX_COARSE_COVECTORS"}}[@actual_PV_indices]];
}
}
return $changed;
}
upgrade 4.13.1 tropical::Polytope.FAR_PSEUDOVERTICES = delete;
# Local Variables:
# mode: perl
# cperl-indent-level: 3
# indent-tabs-mode:nil
# End:
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