64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
|
// This file is part of libigl, a simple c++ geometry processing library.
|
||
|
|
//
|
||
|
|
// Copyright (C) 2016 Oded Stein <oded.stein@columbia.edu>
|
||
|
|
//
|
||
|
|
// 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_LOOP_H
|
||
|
|
#define IGL_LOOP_H
|
||
|
|
|
||
|
|
#include <igl/igl_inline.h>
|
||
|
|
#include <Eigen/Core>
|
||
|
|
#include <Eigen/Sparse>
|
||
|
|
|
||
|
|
namespace igl
|
||
|
|
{
|
||
|
|
// LOOP Given the triangle mesh [V, F], where n_verts = V.rows(), computes
|
||
|
|
// newV and a sparse matrix S s.t. [newV, newF] is the subdivided mesh where
|
||
|
|
// newV = S*V.
|
||
|
|
//
|
||
|
|
// Inputs:
|
||
|
|
// n_verts an integer (number of mesh vertices)
|
||
|
|
// F an m by 3 matrix of integers of triangle faces
|
||
|
|
// Outputs:
|
||
|
|
// S a sparse matrix (will become the subdivision matrix)
|
||
|
|
// newF a matrix containing the new faces
|
||
|
|
template <
|
||
|
|
typename DerivedF,
|
||
|
|
typename SType,
|
||
|
|
typename DerivedNF>
|
||
|
|
IGL_INLINE void loop(
|
||
|
|
const int n_verts,
|
||
|
|
const Eigen::PlainObjectBase<DerivedF> & F,
|
||
|
|
Eigen::SparseMatrix<SType>& S,
|
||
|
|
Eigen::PlainObjectBase<DerivedNF> & NF);
|
||
|
|
// LOOP Given the triangle mesh [V, F], computes number_of_subdivs steps of loop subdivision and outputs the new mesh [newV, newF]
|
||
|
|
//
|
||
|
|
// Inputs:
|
||
|
|
// V an n by 3 matrix of vertices
|
||
|
|
// F an m by 3 matrix of integers of triangle faces
|
||
|
|
// number_of_subdivs an integer that specifies how many subdivision steps to do
|
||
|
|
// Outputs:
|
||
|
|
// NV a matrix containing the new vertices
|
||
|
|
// NF a matrix containing the new faces
|
||
|
|
template <
|
||
|
|
typename DerivedV,
|
||
|
|
typename DerivedF,
|
||
|
|
typename DerivedNV,
|
||
|
|
typename DerivedNF>
|
||
|
|
IGL_INLINE void loop(
|
||
|
|
const Eigen::PlainObjectBase<DerivedV>& V,
|
||
|
|
const Eigen::PlainObjectBase<DerivedF>& F,
|
||
|
|
Eigen::PlainObjectBase<DerivedNV>& NV,
|
||
|
|
Eigen::PlainObjectBase<DerivedNF>& NF,
|
||
|
|
const int number_of_subdivs = 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef IGL_STATIC_LIBRARY
|
||
|
|
# include "loop.cpp"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|