octree_depth.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.
 */
 
#include <lagrange/Logger.h>
 
#include <algorithm>
#include <cmath>
 
namespace lagrange::poisson {
namespace {
 
unsigned int ensure_octree_depth(unsigned int depth, size_t num_points)
{
    if (depth == 0) {
        depth = std::min<unsigned int>(
            8,
            static_cast<unsigned int>(std::ceil(std::log(num_points) / std::log(4.))));
        logger().debug("Setting depth from point count: {} -> {}", num_points, depth);
    }
    return depth;
}
 
} // namespace
} // namespace lagrange::poisson