distance.hpp

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/*
 * Copyright (c) 2020-2023, 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 <cuspatial/column/geometry_column_view.hpp>
#include <cuspatial/constants.hpp>
 
#include <cudf/column/column.hpp>
#include <cudf/column/column_view.hpp>
#include <cudf/table/table_view.hpp>
#include <cudf/utilities/span.hpp>
 
#include <rmm/mr/device/per_device_resource.hpp>
 
#include <optional>
 
namespace cuspatial {
 
std::unique_ptr<cudf::column> haversine_distance(
  cudf::column_view const& a_lon,
  cudf::column_view const& a_lat,
  cudf::column_view const& b_lon,
  cudf::column_view const& b_lat,
  double const radius                 = EARTH_RADIUS_KM,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::pair<std::unique_ptr<cudf::column>, cudf::table_view> directed_hausdorff_distance(
  cudf::column_view const& xs,
  cudf::column_view const& ys,
  cudf::column_view const& space_offsets,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_point_distance(
  geometry_column_view const& multipoints1,
  geometry_column_view const& multipoints2,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_point_linestring_distance(
  geometry_column_view const& multipoints,
  geometry_column_view const& multilinestrings,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_point_polygon_distance(
  geometry_column_view const& multipoints,
  geometry_column_view const& multipolygons,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_linestring_distance(
  geometry_column_view const& multilinestrings1,
  geometry_column_view const& multilinestrings2,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_linestring_polygon_distance(
  geometry_column_view const& multilinestrings,
  geometry_column_view const& multipolygons,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<cudf::column> pairwise_polygon_distance(
  geometry_column_view const& multipolygons1,
  geometry_column_view const& multipolygons2,
  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
 
}  // namespace cuspatial