FastWindingNumber.h

/*
 * Copyright 2023 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
 
#include <lagrange/SurfaceMesh.h>
 
namespace lagrange {
 
namespace winding {

class FastWindingNumber
{
public:
    template <typename Scalar, typename Index>
    FastWindingNumber(const SurfaceMesh<Scalar, Index>& mesh);

    FastWindingNumber();

    ~FastWindingNumber();

    FastWindingNumber(FastWindingNumber&& other) noexcept;

    FastWindingNumber& operator=(FastWindingNumber&& other) noexcept;

    FastWindingNumber(const FastWindingNumber& other) = delete;

    FastWindingNumber& operator=(const FastWindingNumber& other) = delete;

    bool is_inside(const std::array<float, 3>& pos) const;

    float solid_angle(const std::array<float, 3>& pos) const;
 
protected:
    struct Impl;

    value_ptr<Impl> m_impl;
};
 
} // namespace winding
} // namespace lagrange