dust3d/third_party/libigl/include/igl/readOFF.h

87 lines
2.6 KiB
C++

// 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_READOFF_H
#define IGL_READOFF_H
#include "igl_inline.h"
// History:
// return type changed from void to bool Alec 18 Sept 2011
#ifndef IGL_NO_EIGEN
# include <Eigen/Core>
#endif
#include <string>
#include <vector>
#include <cstdio>
namespace igl
{
// Read a mesh from an ascii OFF file, filling in vertex positions, normals
// and texture coordinates. Mesh may have faces of any number of degree
//
// Templates:
// Scalar type for positions and vectors (will be read as double and cast
// to Scalar)
// Index type for indices (will be read as int and cast to Index)
// Inputs:
// str path to .obj file
// Outputs:
// V double matrix of vertex positions #V by 3
// F #F list of face indices into vertex positions
// N list of vertex normals #V by 3
// C list of rgb color values per vertex #V by 3
// Returns true on success, false on errors
template <typename Scalar, typename Index>
IGL_INLINE bool readOFF(
const std::string off_file_name,
std::vector<std::vector<Scalar > > & V,
std::vector<std::vector<Index > > & F,
std::vector<std::vector<Scalar > > & N,
std::vector<std::vector<Scalar > > & C);
// Inputs:
// off_file pointer to already opened .off file
// Outputs:
// off_file closed file
template <typename Scalar, typename Index>
IGL_INLINE bool readOFF(
FILE * off_file,
std::vector<std::vector<Scalar > > & V,
std::vector<std::vector<Index > > & F,
std::vector<std::vector<Scalar > > & N,
std::vector<std::vector<Scalar > > & C);
#ifndef IGL_NO_EIGEN
// read mesh from a ascii off file
// Inputs:
// str path to .off file
// Outputs:
// V eigen double matrix #V by 3
// F eigen int matrix #F by 3
template <typename DerivedV, typename DerivedF>
IGL_INLINE bool readOFF(
const std::string str,
Eigen::PlainObjectBase<DerivedV>& V,
Eigen::PlainObjectBase<DerivedF>& F);
template <typename DerivedV, typename DerivedF>
IGL_INLINE bool readOFF(
const std::string str,
Eigen::PlainObjectBase<DerivedV>& V,
Eigen::PlainObjectBase<DerivedF>& F,
Eigen::PlainObjectBase<DerivedV>& N);
#endif
}
#ifndef IGL_STATIC_LIBRARY
# include "readOFF.cpp"
#endif
#endif