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68 lines
2.2 KiB
68 lines
2.2 KiB
1 year ago
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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// Copyright (C) 2020 Jérémie Dumas <jeremie.dumas@ens-lyon.org>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_READSTL_H
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#define IGL_READSTL_H
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#include "igl_inline.h"
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#ifndef IGL_NO_EIGEN
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# include <Eigen/Core>
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#endif
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#include <string>
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#include <istream>
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#include <vector>
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#include <array>
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namespace igl
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{
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/// Read a mesh from an ascii/binary stl file.
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///
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/// @tparam Scalar type for positions and vectors (will be read as double and cast
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/// to Scalar)
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/// @param[in] filename path to .stl file
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/// @param[out] V double matrix of vertex positions #V*3 by 3
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/// @param[out] F index matrix of triangle indices #F by 3
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/// @param[out] N double matrix of surface normals #F by 3
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/// @return true on success, false on errors
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///
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/// #### Example
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///
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/// bool success = readSTL(filename,temp_V,F,N);
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/// remove_duplicate_vertices(temp_V,0,V,SVI,SVJ);
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/// for_each(F.data(),F.data()+F.size(),[&SVJ](int & f){f=SVJ(f);});
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/// writeOBJ("Downloads/cat.obj",V,F);
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template <typename DerivedV, typename DerivedF, typename DerivedN>
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IGL_INLINE bool readSTL(
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std::istream &input,
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Eigen::PlainObjectBase<DerivedV> & V,
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Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedN> & N);
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/// \overload
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template <typename TypeV, typename TypeF, typename TypeN>
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IGL_INLINE bool readSTL(
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std::istream &input,
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std::vector<std::array<TypeV, 3> > & V,
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std::vector<std::array<TypeF, 3> > & F,
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std::vector<std::array<TypeN, 3> > & N);
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/// \overload
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/// @param[in,out] fp pointer to ply file (will be closed)
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template <typename DerivedV, typename DerivedF, typename DerivedN>
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IGL_INLINE bool readSTL(
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FILE * fp,
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Eigen::PlainObjectBase<DerivedV> & V,
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Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedN> & N);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "readSTL.cpp"
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#endif
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#endif
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