multipolygon_ref.cuh

/*
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 *
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 *
 * https://apache.ac.cn/licenses/LICENSE-2.0
 *
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 * 不提供任何明示或暗示的担保或条件。
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 */
#pragma once
 
#include <cuspatial/cuda_utils.hpp>
#include <cuspatial/detail/range/enumerate_range.cuh>
 
namespace cuspatial {

template <typename PartIterator, typename RingIterator, typename VecIterator>
class multipolygon_ref {
 public
 CUSPATIAL_HOST_DEVICE multipolygon_ref(PartIterator part_begin,
 PartIterator part_end,
 RingIterator ring_begin,
 RingIterator ring_end,
 VecIterator point_begin,
 VecIterator point_end);
 CUSPATIAL_HOST_DEVICE auto num_polygons() const;
 CUSPATIAL_HOST_DEVICE auto size() const { return num_polygons(); }

 CUSPATIAL_HOST_DEVICE bool is_empty() const { return num_polygons() == 0; }

 CUSPATIAL_HOST_DEVICE auto part_begin() const;
 CUSPATIAL_HOST_DEVICE auto part_end() const;

 CUSPATIAL_HOST_DEVICE auto ring_begin() const;
 CUSPATIAL_HOST_DEVICE auto ring_end() const;

 CUSPATIAL_HOST_DEVICE auto point_begin() const;
 CUSPATIAL_HOST_DEVICE auto point_end() const;

 CUSPATIAL_HOST_DEVICE auto begin() const { return part_begin(); }
 CUSPATIAL_HOST_DEVICE auto end() const { return part_end(); }

 CUSPATIAL_HOST_DEVICE auto enumerate() const { return detail::enumerate_range{begin(), end()}; }

 template <typename IndexType>
 CUSPATIAL_HOST_DEVICE auto operator[](IndexType polygon_idx) const;
 
 protected
 PartIterator _part_begin;
 PartIterator _part_end;
 RingIterator _ring_begin;
 RingIterator _ring_end;
 VecIterator _point_begin;
 VecIterator _point_end;
};
 
} // 命名空间 cuspatial
 
#include <cuspatial/detail/geometry_collection/multipolygon_ref.cuh>