multilinestring_ref.cuh

/*
 * Copyright (c) 2022, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://apache.ac.cn/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
#include <cuspatial/cuda_utils.hpp>
#include <cuspatial/detail/range/enumerate_range.cuh>
 
namespace cuspatial {

template <typename PartIterator, typename VecIterator>
class multilinestring_ref {
 public
 CUSPATIAL_HOST_DEVICE multilinestring_ref(PartIterator part_begin,
 PartIterator part_end,
 VecIterator point_begin,
 VecIterator point_end);
 CUSPATIAL_HOST_DEVICE auto num_linestrings() const;
 CUSPATIAL_HOST_DEVICE auto size() const { return num_linestrings(); }

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

 CUSPATIAL_HOST_DEVICE auto part_begin() const;
 CUSPATIAL_HOST_DEVICE auto part_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 linestring_idx) const;
 
 protected
 PartIterator _part_begin;
 PartIterator _part_end;
 VecIterator _point_begin;
 VecIterator _point_end;
};
 
} // namespace cuspatial
 
#include <cuspatial/detail/geometry_collection/multilinestring_ref.cuh>