#  Copyright (c) 1997-2018
#  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.
#-------------------------------------------------------------------------------

object NormalToricVariety {

   # @category Producing a normal toric variety
   # Produce a toric variety from a rational Cone.
   # @param Cone<Rational> cone Cone
   # @return NormalToricVariety
   method construct(Cone<Rational>) {
      my $cone = $_[1];
      return new NormalToricVariety(check_fan_objects($cone));
   }

   # @category Producing a normal toric variety
   # Produce a toric variety from a rational fan.
   # @param PolyhedralFan<Rational> fan Fan
   # @return NormalToricVariety
   method construct(PolyhedralFan<Rational>) {
      &Core::Object::new_copy;
   }

   rule AFFINE : N_MAXIMAL_CONES{
      $this->AFFINE = ($this->N_MAXIMAL_CONES == 1);
   }

   rule DEGENERATE : LINEALITY_DIM {
      $this->DEGENERATE = $this->LINEALITY_DIM > 0;
   }
   weight 0.1;

   rule PROJECTIVE : RAYS, MAXIMAL_CONES {
      $this->PROJECTIVE = regular($this);
   }

   # the number of maximal torus orbits
   # they correspond to the rays of the fan
   rule N_MAXIMAL_TORUS_ORBITS = N_RAYS;

   rule ORBIFOLD = SIMPLICIAL;
}


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