chain_edges.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/utils/span.h>
 
#include <vector>
 
namespace lagrange {
 
 
struct ChainEdgesOptions
{
    bool output_edge_index = false;
 
    bool close_loop_with_identical_vertices = false;
};
 
template <typename Index>
struct ChainEdgesResult
{
    std::vector<std::vector<Index>> loops;
 
    std::vector<std::vector<Index>> chains;
};
 
template <typename Index>
ChainEdgesResult<Index> chain_directed_edges(
    const span<const Index> edges,
    const ChainEdgesOptions& options = {});
 
template <typename Index>
ChainEdgesResult<Index> chain_undirected_edges(
    const span<const Index> edges,
    const ChainEdgesOptions& options = {});
 
 
} // namespace lagrange