SphereMeshWedge.h

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// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2025 Alec Jacobson <alecjacobson@gmail.com>
// 
// This Source Code Form is subject to the terms of the Mozilla Public License 
// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_SPHERE_MESH_WEDGE_H
#define IGL_SPHERE_MESH_WEDGE_H
 
#include "igl_inline.h"
#include <Eigen/Core>
 
namespace igl
{
  template <typename Scalar>
  class SphereMeshWedge
  {
    public: 
      using RowVector3S = Eigen::Matrix<Scalar, 1, 3>;
      // Fields
      enum 
      {
        BIG_VERTEX = 0,
        BIG_EDGE = 1,
        NO_TRIANGLE = 2,
        FULL = 3
      } flavor;
      Eigen::Matrix<Scalar,3,3,Eigen::RowMajor> V;
      Eigen::Matrix<Scalar,3,1> r;
      Eigen::Matrix<Scalar,3,3,Eigen::RowMajor> EV;
      Eigen::Matrix<Scalar,3,1> l,l2,rr,a2,il2;
      int max_i;
      Eigen::Matrix<Scalar,5,4,Eigen::RowMajor> planes;
      Eigen::Matrix<Scalar,3,3,Eigen::RowMajor> T;
      Eigen::Matrix<Scalar,3,3,Eigen::RowMajor> C;
 
      SphereMeshWedge(){}
      IGL_INLINE SphereMeshWedge(
        const RowVector3S & V0,
        const RowVector3S & V1,
        const RowVector3S & V2,
        const Scalar r0,
        const Scalar r1,
        const Scalar r2);
      IGL_INLINE Scalar operator()(const RowVector3S & p) const;
    private:
      IGL_INLINE bool compute_planes();
      IGL_INLINE Scalar round_cone_signed_distance(const RowVector3S & p, const int i, const int j) const;
  };
}
 
#ifndef IGL_STATIC_LIBRARY
#include "SphereMeshWedge.cpp"
#endif
#endif