compute_local_feature_size.h

/*
 * Copyright 2026 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/raycasting/api.h>
 
#include <limits>
#include <string_view>
 
namespace lagrange::raycasting {
 
class RayCaster;


enum class RayDirectionMode {
    Interior,

    Exterior,

    Both,
};

struct LocalFeatureSizeOptions
{
    std::string_view output_attribute_name = "@lfs";

    std::string_view vertex_normal_attribute_name = "";

    RayDirectionMode direction_mode = RayDirectionMode::Interior;

    float ray_offset = 1e-4f;

    float default_lfs = std::numeric_limits<float>::infinity();

    float medial_axis_tolerance = 1e-4f;
};

template <typename Scalar, typename Index>
LA_RAYCASTING_API AttributeId compute_local_feature_size(
    SurfaceMesh<Scalar, Index>& mesh,
    const LocalFeatureSizeOptions& options = {},
    const RayCaster* ray_caster = nullptr);

 
} // namespace lagrange::raycasting