You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.1 KiB
66 lines
2.1 KiB
1 year ago
|
// This file is part of libigl, a simple c++ geometry processing library.
|
||
|
|
//
|
||
|
|
// Copyright (C) 2013 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_RANDOM_POINTS_ON_MESH_INTRINSIC_H
|
||
|
|
#define IGL_RANDOM_POINTS_ON_MESH_INTRINSIC_H
|
||
|
|
|
||
|
|
#include "igl_inline.h"
|
||
|
|
#include "generate_default_urbg.h"
|
||
|
|
#include <Eigen/Core>
|
||
|
|
#include <Eigen/Sparse>
|
||
|
|
|
||
|
|
namespace igl
|
||
|
|
{
|
||
|
|
/// Randomly sample a mesh (V,F) n times.
|
||
|
|
///
|
||
|
|
/// @param[in] n number of samples
|
||
|
|
/// @param[in] dblA #F list of double areas of triangles
|
||
|
|
/// @param[out] B n by 3 list of barycentric coordinates, ith row are coordinates of
|
||
|
|
/// ith sampled point in face FI(i)
|
||
|
|
/// @param[out] FI n list of indices into F
|
||
|
|
/// @param[in,out] urbg An instance of UnformRandomBitGenerator.
|
||
|
|
template <
|
||
|
|
typename DeriveddblA,
|
||
|
|
typename DerivedB,
|
||
|
|
typename DerivedFI,
|
||
|
|
typename URBG = DEFAULT_URBG>
|
||
|
|
IGL_INLINE void random_points_on_mesh_intrinsic(
|
||
|
|
const int n,
|
||
|
|
const Eigen::MatrixBase<DeriveddblA > & dblA,
|
||
|
|
Eigen::PlainObjectBase<DerivedB > & B,
|
||
|
|
Eigen::PlainObjectBase<DerivedFI > & FI,
|
||
|
|
URBG && urbg = igl::generate_default_urbg());
|
||
|
|
/// \overload
|
||
|
|
///
|
||
|
|
/// @param[in] num_vertices number of vertices in mesh
|
||
|
|
/// @param[in] F #F by 3 list of mesh triangle indices
|
||
|
|
/// @param[out] B n by num_vertices sparse matrix so that B*V produces a list
|
||
|
|
/// of sample points if dbl = doublearea(V,F)
|
||
|
|
///
|
||
|
|
template <
|
||
|
|
typename DeriveddblA,
|
||
|
|
typename DerivedF,
|
||
|
|
typename ScalarB,
|
||
|
|
typename DerivedFI,
|
||
|
|
typename URBG>
|
||
|
|
IGL_INLINE void random_points_on_mesh_intrinsic(
|
||
|
|
const int n,
|
||
|
|
const Eigen::MatrixBase<DeriveddblA > & dblA,
|
||
|
|
const int num_vertices,
|
||
|
|
const Eigen::MatrixBase<DerivedF> & F,
|
||
|
|
Eigen::SparseMatrix<ScalarB > & B,
|
||
|
|
Eigen::PlainObjectBase<DerivedFI > & FI,
|
||
|
|
URBG && urbg);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef IGL_STATIC_LIBRARY
|
||
|
|
# include "random_points_on_mesh_intrinsic.cpp"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|