OrientedBoundingBox.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "MooseTypes.h"
 
#include "libmesh/point.h"
 
#include <filesystem>
#include <iosfwd>
#include <utility>
#include <vector>
 
namespace libMesh
{
namespace Parallel
{
class Communicator;
}
}
 
class OrientedBoundingBox
{
public:
  // --- Construction ---
 
  OrientedBoundingBox();
 
  explicit OrientedBoundingBox(const std::vector<std::pair<Point, Point>> & axis_pairs);
 
  // --- Queries / introspection ---
 
  bool contains(const Point & pt, const Real tolerance = libMesh::TOLERANCE) const;
 
  Point centroid() const;
 
  Point getAxisDirection(unsigned int i) const;
 
  Real getAxisLength(unsigned int i) const;
 
  Point getMinimalCorner() const;
 
  Point getMaximalCorner() const;
 
  // --- I/O helpers ---
 
  void print(std::ostream & os) const;
 
  void writeMesh(const std::filesystem::path & path,
                 const libMesh::Parallel::Communicator & comm) const;
 
  void writeRayAlongShortestAxis(const std::filesystem::path & ray_path,
                                 const libMesh::Parallel::Communicator & comm) const;
 
  Real getProjectedLength(const Point & pt, unsigned int i) const;
 
private:
  Point _minimal_corner;    
  Point _maximal_corner;    
  std::vector<Point> _dirs; 
  std::vector<Real> _len;   
  unsigned int _dim = 0u;   
};