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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 Postscript;
# for arrows in directed graphs and Gale diagrams
custom $arrowheadlength=14;
# for arrows in directed graphs and Gale diagrams
custom $arrowheadwidth=6;
# relative to arrowheadlength
custom $arrowheaddent=0.1;
# between the nodes of a face lattice (relative to the face label box width)
custom $face_spacing=0.2;
require PostscriptGraph;
package Postscript::Viewer;
# the trailing @ in the signature allows to draw several graphs
# together on the same page
global_method postscript.graph: draw(Visual::Graph, @) {
my ($self, $Graph)=@_;
$self->current_page->addGraph($Graph);
}
global_method postscript.lattice: draw(Visual::Lattice) {
my ($self, $Lattice)=@_;
$self->current_page->addLattice($Lattice);
}
# Local Variables:
# mode: perl
# cperl-indent-level:3
# End:
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