AttributeEvaluator.h

/*
 * Copyright 2024 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>
#include <lagrange/poisson/CommonOptions.h>
 
#include <array>
#include <memory>
#include <string_view>
 
namespace lagrange::poisson {


struct EvaluatorOptions : public CommonOptions
{
    std::string_view interpolated_attribute_name;
};

class AttributeEvaluator
{
public:
    template <typename Scalar, typename Index>
    AttributeEvaluator(
        const SurfaceMesh<Scalar, Index>& points,
        const EvaluatorOptions& options = {});

    ~AttributeEvaluator();

    template <typename Scalar, typename ValueType>
    void eval(span<const Scalar> pos, span<ValueType> out) const;
 
private:
    struct Impl;
 
    // Opaque implementation (non-copyable)
    std::unique_ptr<Impl> m_impl;
};

 
} // namespace lagrange::poisson