trajectory.cuh

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/*
 * Copyright (c) 2022-2023, 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
 *
 *     http://www.apache.org/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 <rmm/cuda_stream_view.hpp>
#include <rmm/device_uvector.hpp>
#include <rmm/mr/device/device_memory_resource.hpp>
 
#include <iterator>
#include <memory>
 
namespace cuspatial {
 
template <typename IdInputIt,
          typename PointInputIt,
          typename TimestampInputIt,
          typename IdOutputIt,
          typename PointOutputIt,
          typename TimestampOutputIt,
          typename OffsetType = std::int32_t>
std::unique_ptr<rmm::device_uvector<OffsetType>> derive_trajectories(
  IdInputIt ids_first,
  IdInputIt ids_last,
  PointInputIt points_first,
  TimestampInputIt timestamps_first,
  IdOutputIt ids_output_first,
  PointOutputIt points_output_first,
  TimestampOutputIt timestamps_output_first,
  rmm::cuda_stream_view stream        = rmm::cuda_stream_default,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
template <typename IdInputIt,
          typename PointInputIt,
          typename TimestampInputIt,
          typename OutputIt,
          typename IndexT = iterator_value_type<IdInputIt>>
OutputIt trajectory_distances_and_speeds(IndexT num_trajectories,
                                         IdInputIt ids_first,
                                         IdInputIt ids_last,
                                         PointInputIt points_first,
                                         TimestampInputIt timestamps_first,
                                         OutputIt distances_and_speeds_first,
                                         rmm::cuda_stream_view stream = rmm::cuda_stream_default);
 
}  // namespace cuspatial
 
#include <cuspatial/detail/trajectory/derive_trajectories.cuh>
#include <cuspatial/detail/trajectory/trajectory_distances_and_speeds.cuh>