density_term.hpp

/*
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#pragma once

#include <geode/stochastic/spatial/object_sets.hpp>

#include <geode/stochastic/sampling/mcmc/models/components/single_object_term.hpp>

namespace geode
{
    template < typename ObjectType >
    class DensityTerm : public SingleObjectTerm< ObjectType,
                            std::function< double( const ObjectType&,
                                const SpatialDomain< ObjectType::dim >& ) > >
    {
    public:
        explicit DensityTerm( std::string_view name,
            double lambda,
            std::vector< uuid > targeted_set_ids,
            const SpatialDomain< ObjectType::dim >& domain )
            : SingleObjectTerm< ObjectType,
                  std::function< double( const ObjectType&,
                      const SpatialDomain< ObjectType::dim >& ) > >(
                  name,
                  lambda,
                  std::move( targeted_set_ids ),
                  1.0, // scale by domain area to get density per unit
                  []( const ObjectType& obj,
                      const SpatialDomain< ObjectType::dim >& domain ) {
                      if( SpatialDomainChecker<
                              ObjectType >::is_anchored_in_domain( domain,
                              obj ) )
                      {
                          return 1.0;
                      }
                      return 0.0;
                  }, // contribution = 1 anchoredin domain
                  domain )
        {
        }
    };
} // namespace geode