compute_pointcloud_pca.h

/*
 * Copyright 2019 Adobe. All rights reserved.
 * This file is licensed to you 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 REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
#pragma once
 
#ifdef LAGRANGE_ENABLE_LEGACY_FUNCTIONS
    #include <lagrange/legacy/compute_pointcloud_pca.h>
#endif
 
#include <lagrange/utils/span.h>
 
namespace lagrange {
 
struct ComputePointcloudPCAOptions
{
    bool shift_centroid = false;

    bool normalize = false;
};
 
template <typename Scalar>
struct PointcloudPCAOutput
{
    std::array<Scalar, 3> center;

    std::array<std::array<Scalar, 3>, 3> eigenvectors;

    std::array<Scalar, 3> eigenvalues;
};

template <typename Scalar>
PointcloudPCAOutput<Scalar> compute_pointcloud_pca(
    span<const Scalar> points,
    ComputePointcloudPCAOptions options = {});
 
} // namespace lagrange