generate_rounded_plane.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_HEADERS
    #include <lagrange/primitive/legacy/generate_rounded_plane.h>
#endif
 
#include <lagrange/primitive/api.h>
 
#include <lagrange/SurfaceMesh.h>
#include <lagrange/primitive/PrimitiveOptions.h>
 
namespace lagrange::primitive {


struct RoundedPlaneOptions : public PrimitiveOptions
{
    using Scalar = PrimitiveOptions::Scalar;
    using Index = size_t;

    Scalar width = 1;

    Scalar height = 1;

    Scalar bevel_radius = 0;

    Index width_segments = 1;

    Index height_segments = 1;

    Index bevel_segments = 8;

    std::array<Scalar, 3> normal = {0, 0, 1};

    void project_to_valid_range()
    {
        width = std::max(width, static_cast<Scalar>(0));
        height = std::max(height, static_cast<Scalar>(0));
        bevel_radius = std::min(
            std::max(bevel_radius, static_cast<Scalar>(0)),
            (std::min(width, height)) / static_cast<Scalar>(2));
 
        width_segments = std::max(width_segments, static_cast<Index>(1));
        height_segments = std::max(height_segments, static_cast<Index>(1));
 
        if (bevel_radius > this->epsilon) {
            bevel_segments = std::max(bevel_segments, static_cast<Index>(1));
        } else {
            bevel_segments = 0;
        }
 
        const Scalar l =
            std::sqrt(normal[0] * normal[0] + normal[1] * normal[1] + normal[2] * normal[2]);
        if (l > this->epsilon) {
            normal[0] /= l;
            normal[1] /= l;
            normal[2] /= l;
        } else {
            // Degenerate normal, reset to default
            normal = {0, 0, 1};
        }
    }
};

template <typename Scalar, typename Index>
LA_PRIMITIVE_API SurfaceMesh<Scalar, Index> generate_rounded_plane(RoundedPlaneOptions settings);

 
} // namespace lagrange::primitive