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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 Povray;
CREDIT povray
Persistence of Vision Ray tracer, a tool for creating 3-d photo-realistic images.
http://www.povray.org
# a povray renderer, e.g. povray
custom $viewer;
CONFIGURE_OPT {
find_program($viewer, "povray");
}
# options for povray rendering
custom $cmd_options = "+D +A0.5";
# width of picture
custom $width = 400;
# height of picture
custom $height = 300;
# length of arrow head
custom $headLength = 0.3;
# relative width of arrow head
custom $headWidth = 2;
# thickness of the points
custom $points_thickness = 0.06;
# thickness of the lines/tubes
custom $lines_thickness = 0.03;
# @category Visualization
# Use [[wiki:external_software#povray|POVRAY]] for drawing.
label povray
################################################################################
#
# Implementing the Viewer interface
#
package Povray::Viewer;
use Povray;
use BackgroundViewer;
use Polymake::Struct [ '@ISA' => 'SimpleViewer' ];
sub file_suffix { ".pov" }
sub new {
unless (defined $viewer) {
die <<'.';
requires a complete PoVRay package;
please specify the output File option or call reconfigure("common::povray.rules");
.
}
&_new;
}
sub command {
my ($self, $filename)=@_;
my $outputfile = $self->graphics->title;
$outputfile =~ s|[ /.]|_|g;
if (-e "${outputfile}.tga") {
my $i = 1;
++$i while (-e "${outputfile}_${i}.tga");
$outputfile .= "_${i}.tga";
} else {
$outputfile .= ".tga";
}
"$viewer +P -V $cmd_options +W$width +H$height +O$outputfile $filename; echo CREATED $outputfile"
}
sub append {
my $self=shift;
$self->graphics->append(@_);
}
global_method povray.geometry: draw(Visual::PointSet, @) {
my ($self, $P)=@_;
$self->append(new Povray::PointSet($P));
}
global_method povray.geometry: draw(Visual::Polygon, @) {
my ($self, $P)=@_;
if (@{$P->Vertices} >= 3) {
$self->append(new Povray::Solid($P));
} else {
$self->append(new Povray::Wire(new Visual::DegeneratedPolygon($P)));
}
}
global_method povray.geometry: draw(Visual::Polygons, @) {
my ($self, $P)=@_;
$self->append(new Povray::Solid($P));
}
global_method povray.geometry: draw(Visual::Wire, @) {
my ($self, $G)=@_;
$self->append(new Povray::Wire($G));
}
# Writes to a POV file without rendering
package Povray::File::Writer;
import Visual::FileWriter;
###########################################################################################
package application;
# @category Visualization
# Run [[wiki:external_software#povray|POVRAY]] to display given visual objects.
#
# @param Visual::Object vis_obj ... objects to display
#
# @option [complete file] String File "filename" or "AUTO"
# Store the object description in a POVRAY source file without actual rendering.
# The ''.pov'' suffix is automatically added to the file name.
#
# Specify //AUTO// if you want the filename be automatically derived
# from the drawing title.
#
# You can also use any expression allowed for the ''open'' function,
# including "-" for terminal output, "&HANDLE" for an already opened file handle,
# or "| program" for a pipe.
user_function povray(Visual::Object+, { File => undef }) {
visualize_explicit(@_, "Povray");
}
# Local Variables:
# mode: perl
# cperl-indent-level:3
# End:
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