💿🐜 Antkeeper source code
https://antkeeper.com
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69 lines
2.4 KiB
69 lines
2.4 KiB
/*
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* Copyright (C) 2017-2019 Christopher J. Howard
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*
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* This file is part of Antkeeper Source Code.
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*
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* Antkeeper Source Code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper Source Code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper Source Code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TRIANGLE_MESH_OPERATIONS_HPP
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#define TRIANGLE_MESH_OPERATIONS_HPP
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#include <emergent/emergent.hpp>
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using namespace Emergent;
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/**
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* A single segment in a triangle mesh wrap operation.
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*/
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struct WrapOperationSegment
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{
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/// Pointer to the triangle on which this segment is located
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TriangleMesh::Triangle* triangle;
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/// Pointer to the starting edge of this segment (if any)
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TriangleMesh::Edge* startEdge;
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/// Pointer to the ending edge of this segment (if any)
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TriangleMesh::Edge* endEdge;
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/// Pointer to the starting vertex of this segment (if any)
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TriangleMesh::Vertex* startVertex;
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/// Pointer to the ending vertex of this segment (if any)
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TriangleMesh::Vertex* endVertex;
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/// Barycentric coordinates of the start position of the segment
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Vector3 startPosition; // barycentric
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/// Barycentric coordinates of the end position of the segment
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Vector3 endPosition; // barycentric
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/// Length of the segment
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float length;
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};
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/**
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* Wraps a vector around a triangle mesh.
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*
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* @param triangle Pointer to the triangle on which the wrap operation will begin.
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* @param position Cartesian coordinates of the starting position.
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* @param direction Initial normalized direction of the wrap operation.
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* @param length Total length of the wrap operation.
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* @param[out] segments List which will be populated with the wrap operation segments
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* @return Total length of the wrap operation. If this quantity is less than the length parameter, this indicates the wrap operation hit a disconnected edge.
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*/
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float wrap(TriangleMesh::Triangle* triangle, Vector3 position, Vector3 direction, float length, std::vector<WrapOperationSegment>* segments);
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#endif // TRIANGLE_MESH_OPERATIONS_HPP
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