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hfn_load.hpp
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/*
--------------------------------------------------------
* HFN-LOAD: parse *.MSH file into HFUN data.
--------------------------------------------------------
*
* This program may be freely redistributed under the
* condition that the copyright notices (including this
* entire header) are not removed, and no compensation
* is received through use of the software. Private,
* research, and institutional use is free. You may
* distribute modified versions of this code UNDER THE
* CONDITION THAT THIS CODE AND ANY MODIFICATIONS MADE
* TO IT IN THE SAME FILE REMAIN UNDER COPYRIGHT OF THE
* ORIGINAL AUTHOR, BOTH SOURCE AND OBJECT CODE ARE
* MADE FREELY AVAILABLE WITHOUT CHARGE, AND CLEAR
* NOTICE IS GIVEN OF THE MODIFICATIONS. Distribution
* of this code as part of a commercial system is
* permissible ONLY BY DIRECT ARRANGEMENT WITH THE
* AUTHOR. (If you are not directly supplying this
* code to a customer, and you are instead telling them
* how they can obtain it for free, then you are not
* required to make any arrangement with me.)
*
* Disclaimer: Neither I nor: Columbia University, The
* Massachusetts Institute of Technology, The
* University of Sydney, nor The National Aeronautics
* and Space Administration warrant this code in any
* way whatsoever. This code is provided "as-is" to be
* used at your own risk.
*
--------------------------------------------------------
*
* Last updated: 19 January, 2019
*
* Copyright 2013-2019
* Darren Engwirda
* https://github.com/dengwirda/
*
--------------------------------------------------------
*/
# pragma once
# include "msh_read.hpp"
# ifndef __HFN_LOAD__
# define __HFN_LOAD__
/*
--------------------------------------------------------
* HFUN-FROM-JMSH: read *.JMSH file into HFUN data.
--------------------------------------------------------
*/
template <
typename jlog_data
>
__normal_call iptr_type hfun_from_jmsh (
jcfg_data &_jcfg ,
jlog_data &_jlog ,
hfun_data &_hfun
)
{
class hfun_reader:
public jmsh_reader_base
{
public :
hfun_data *_hfun ;
containers::array<
std::int32_t > _pmap ;
std::int32_t _ftag ;
jmsh_kind::
enum_data _kind ;
std:: size_t _ndim ;
public :
__normal_call hfun_reader (
hfun_data*_hsrc = nullptr
) : _hfun(_hsrc) {}
/*-------------------------------- read MSHID section */
__normal_call void_type push_mshid (
std::int32_t _ftag ,
jmsh_kind::enum_data _kind
)
{
this->_ftag = _ftag ;
this->_kind = _kind ;
this->
_hfun->_kind = _kind ;
}
/*-------------------------------- read NDIMS section */
__normal_call void_type push_ndims (
std:: size_t _ndim
)
{
this->_ndim = _ndim ;
this->
_hfun->_ndim = _ndim ;
}
/*-------------------------------- read POINT section */
__normal_call void_type push_point (
std:: size_t _ipos ,
double *_pval ,
std::int32_t _itag
)
{
__unreferenced(_ipos) ;
__unreferenced(_itag) ;
if (this->_ndim == +2 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
std::int32_t _npos ;
typename
hfun_data::euclidean_mesh_2d
::node_type _ndat ;
_ndat.pval(0) = _pval[0];
_ndat.pval(1) = _pval[1];
_npos = this->_hfun->
_euclidean_mesh_2d.
_mesh.push_node(_ndat, false) ;
this->_pmap.
push_tail(_npos) ;
}
else
if (this->_ndim == +3 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
std::int32_t _npos ;
typename
hfun_data::euclidean_mesh_3d
::node_type _ndat ;
_ndat.pval(0) = _pval[0];
_ndat.pval(1) = _pval[1];
_ndat.pval(2) = _pval[2];
_npos = this->_hfun->
_euclidean_mesh_3d.
_mesh.push_node(_ndat, false) ;
this->_pmap.
push_tail(_npos) ;
}
else
if (this->_kind ==
jmsh_kind::ellipsoid_mesh)
{
//!! do things
}
}
/*-------------------------------- read COORD section */
__normal_call void_type push_coord (
std:: size_t _idim,
std:: size_t _irow,
double _ppos
)
{
__unreferenced(_irow) ;
if (this->_ndim == +2 &&
this->_kind ==
jmsh_kind::euclidean_grid)
{
if (_idim == +1)
{
this->_hfun->
_euclidean_grid_2d.
_xpos.push_tail(_ppos) ;
}
else
if (_idim == +2)
{
this->_hfun->
_euclidean_grid_2d.
_ypos.push_tail(_ppos) ;
}
}
else
if (this->_ndim == +3 &&
this->_kind ==
jmsh_kind::euclidean_grid)
{
if (_idim == +1)
{
this->_hfun->
_euclidean_grid_3d.
_xpos.push_tail(_ppos) ;
}
else
if (_idim == +2)
{
this->_hfun->
_euclidean_grid_3d.
_ypos.push_tail(_ppos) ;
}
else
if (_idim == +3)
{
this->_hfun->
_euclidean_grid_3d.
_zpos.push_tail(_ppos) ;
}
}
else
if (this->_kind ==
jmsh_kind::ellipsoid_grid)
{
if (_idim == +1)
{
this->_hfun->
_ellipsoid_grid_3d.
_xpos.push_tail(_ppos) ;
}
else
if (_idim == +2)
{
this->_hfun->
_ellipsoid_grid_3d.
_ypos.push_tail(_ppos) ;
}
}
}
/*-------------------------------- read VALUE section */
__normal_call void_type push_value (
std:: size_t _ipos ,
double *_vval
)
{
if (this->_ndim == +2 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
if (_ipos < this->_pmap.count())
{
std::int32_t _nmap ;
_nmap = this->_pmap [_ipos];
this->_hfun->
_euclidean_mesh_2d._mesh.
_set1[_nmap].hval() = *_vval;
}
}
else
if (this->_ndim == +2 &&
this->_kind ==
jmsh_kind::euclidean_grid)
{
this->_hfun->
_euclidean_grid_2d.
_hmat.push_tail(*_vval) ;
}
else
if (this->_ndim == +3 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
if (_ipos < this->_pmap.count())
{
std::int32_t _nmap ;
_nmap = this->_pmap [_ipos];
this->_hfun->
_euclidean_mesh_3d._mesh.
_set1[_nmap].hval() = *_vval;
}
}
else
if (this->_ndim == +3 &&
this->_kind ==
jmsh_kind::euclidean_grid)
{
this->_hfun->
_euclidean_grid_3d.
_hmat.push_tail(*_vval) ;
}
else
if (this->_kind ==
jmsh_kind::ellipsoid_grid)
{
this->_hfun->
_ellipsoid_grid_3d.
_hmat.push_tail(*_vval) ;
}
}
/*-------------------------------- read TRIA3 section */
__normal_call void_type push_tria3 (
std:: size_t _ipos ,
std::int32_t *_node ,
std::int32_t _itag
)
{
__unreferenced(_ipos) ;
__unreferenced(_itag) ;
if (this->_ndim == +2 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
typename
hfun_data::euclidean_mesh_2d
::tri3_type _tdat ;
_tdat.node(0) = _node[0];
_tdat.node(1) = _node[1];
_tdat.node(2) = _node[2];
this->_hfun->
_euclidean_mesh_2d.
_mesh.push_tri3(_tdat, false) ;
}
else
if (this->_ndim == +3)
{
// 3-dimensional!!
}
}
/*-------------------------------- read TRIA4 section */
__normal_call void_type push_tria4 (
std:: size_t _ipos ,
std::int32_t *_node ,
std::int32_t _itag
)
{
__unreferenced(_ipos) ;
__unreferenced(_itag) ;
if (this->_ndim == +2)
{
// 2-dimensional!!
}
else
if (this->_ndim == +3 &&
this->_kind ==
jmsh_kind::euclidean_mesh)
{
typename
hfun_data::euclidean_mesh_3d
::tri4_type _tdat ;
_tdat.node(0) = _node[0];
_tdat.node(1) = _node[1];
_tdat.node(2) = _node[2];
_tdat.node(3) = _node[3];
this->_hfun->
_euclidean_mesh_3d.
_mesh.push_tri4(_tdat, false) ;
}
}
} ;
/*---------------------------------- parse HFUN. file */
iptr_type _errv = __no_error ;
try
{
jmsh_reader _jmsh ;
std::ifstream _file ;
_file. open(
_jcfg._hfun_file, std::ifstream::in) ;
if (_file.is_open() )
{
_jmsh.read_file (
_file, hfun_reader(&_hfun));
}
else
{
_errv = __file_not_located ;
}
_file.close ();
for (auto _iter =
_jmsh._errs.head();
_iter !=
_jmsh._errs.tend();
++_iter )
{
_jlog.push(
"**parse error: " + * _iter + "\n" ) ;
}
}
catch (...)
{
_errv = __unknown_error ;
}
return ( _errv ) ;
}
/*
--------------------------------------------------------
* HFUN-FROM-MSHT: read MSH_t data into HFUN data.
--------------------------------------------------------
*/
template <
typename jlog_data
>
__normal_call iptr_type hfun_from_msht (
jcfg_data &_jcfg ,
jlog_data &_jlog ,
hfun_data &_hfun ,
jigsaw_msh_t const&_hmsh
)
{
iptr_type _errv = __no_error ;
try
{
if (_hmsh._flags ==
JIGSAW_EUCLIDEAN_MESH )
{
if (_hmsh._vert2._size > 0)
{
/*--------------------------------- euclidean-mesh-2d */
_hfun._kind
= jmsh_kind::euclidean_mesh ;
_hfun._ndim = +2;
if (_hmsh._vert2._size !=
_hmsh._value._size )
return __invalid_argument ;
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._vert2._size ;
++_ipos )
{
typename
hfun_data::euclidean_mesh_2d
::node_type _ndat ;
_ndat.pval(0) = _hmsh.
_vert2._data[_ipos]._ppos[0];
_ndat.pval(1) = _hmsh.
_vert2._data[_ipos]._ppos[1];
_ndat.hval () = _hmsh.
_value._data[_ipos] ;
_hfun._euclidean_mesh_2d.
_mesh.push_node(_ndat, false) ;
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._tria3._size ;
++_ipos )
{
typename
hfun_data::euclidean_mesh_2d
::tri3_type _tdat ;
_tdat.node(0) = _hmsh.
_tria3._data[_ipos]._node[0];
_tdat.node(1) = _hmsh.
_tria3._data[_ipos]._node[1];
_tdat.node(2) = _hmsh.
_tria3._data[_ipos]._node[2];
_hfun._euclidean_mesh_2d.
_mesh.push_tri3(_tdat, false) ;
}
}
else
if (_hmsh._vert3._size > 0)
{
/*--------------------------------- euclidean-mesh-3d */
_hfun._kind
= jmsh_kind::euclidean_mesh ;
_hfun._ndim = +3;
if (_hmsh._vert3._size !=
_hmsh._value._size )
return __invalid_argument ;
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._vert3._size ;
++_ipos )
{
typename
hfun_data::euclidean_mesh_3d
::node_type _ndat ;
_ndat.pval(0) = _hmsh.
_vert3._data[_ipos]._ppos[0];
_ndat.pval(1) = _hmsh.
_vert3._data[_ipos]._ppos[1];
_ndat.pval(2) = _hmsh.
_vert3._data[_ipos]._ppos[2];
_ndat.hval () = _hmsh.
_value._data[_ipos] ;
_hfun._euclidean_mesh_3d.
_mesh.push_node(_ndat, false) ;
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._tria4._size ;
++_ipos )
{
typename
hfun_data::euclidean_mesh_3d
::tri4_type _tdat ;
_tdat.node(0) = _hmsh.
_tria4._data[_ipos]._node[0];
_tdat.node(1) = _hmsh.
_tria4._data[_ipos]._node[1];
_tdat.node(2) = _hmsh.
_tria4._data[_ipos]._node[2];
_tdat.node(3) = _hmsh.
_tria4._data[_ipos]._node[3];
_hfun._euclidean_mesh_3d.
_mesh.push_tri4(_tdat, false) ;
}
}
}
else
if (_hmsh._flags ==
JIGSAW_EUCLIDEAN_GRID )
{
if (_hmsh._zgrid._size== 0)
{
/*--------------------------------- euclidean-grid-2d */
_hfun._kind
= jmsh_kind::euclidean_grid ;
_hfun._ndim = +2;
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._xgrid._size ;
++_ipos )
{
_hfun._euclidean_grid_2d._xpos.
push_tail(_hmsh.
_xgrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._ygrid._size ;
++_ipos )
{
_hfun._euclidean_grid_2d._ypos.
push_tail(_hmsh.
_ygrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._value._size ;
++_ipos )
{
_hfun._euclidean_grid_2d._hmat.
push_tail(_hmsh.
_value._data[_ipos]);
}
}
else
if (_hmsh._zgrid._size!= 0)
{
/*--------------------------------- euclidean-grid-2d */
_hfun._kind
= jmsh_kind::euclidean_grid ;
_hfun._ndim = +3;
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._xgrid._size ;
++_ipos )
{
_hfun._euclidean_grid_3d._xpos.
push_tail(_hmsh.
_xgrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._ygrid._size ;
++_ipos )
{
_hfun._euclidean_grid_3d._ypos.
push_tail(_hmsh.
_ygrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._zgrid._size ;
++_ipos )
{
_hfun._euclidean_grid_3d._zpos.
push_tail(_hmsh.
_zgrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._value._size ;
++_ipos )
{
_hfun._euclidean_grid_3d._hmat.
push_tail(_hmsh.
_value._data[_ipos]);
}
}
}
else
if (_hmsh._flags ==
JIGSAW_ELLIPSOID_GRID )
{
if (_hmsh._zgrid._size== 0)
{
/*--------------------------------- euclidean-grid-2d */
_hfun._kind
= jmsh_kind::ellipsoid_grid ;
_hfun._ndim = +3;
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._xgrid._size ;
++_ipos )
{
_hfun._ellipsoid_grid_3d._xpos.
push_tail(_hmsh.
_xgrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._ygrid._size ;
++_ipos )
{
_hfun._ellipsoid_grid_3d._ypos.
push_tail(_hmsh.
_ygrid._data[_ipos]);
}
for (auto _ipos = (size_t) +0 ;
_ipos != _hmsh._value._size ;
++_ipos )
{
_hfun._ellipsoid_grid_3d._hmat.
push_tail(_hmsh.
_value._data[_ipos]);
}
}
}
}
catch (...)
{
_errv = __unknown_error ;
}
return ( _errv ) ;
}
/*
--------------------------------------------------------
* READ-HFUN: read HFUN input file.
--------------------------------------------------------
*/
template <
typename jlog_data
>
__normal_call iptr_type read_hfun (
jcfg_data &_jcfg ,
jlog_data &_jlog ,
hfun_data &_hfun
)
{
iptr_type _errv = __no_error ;
std::string _path ;
std::string _name ;
std::string _fext ;
file_part (
_jcfg._hfun_file ,
_path, _name, _fext ) ;
if (_fext.find("msh") == +0 )
{
return hfun_from_jmsh (
_jcfg, _jlog, _hfun ) ;
}
else
{
_errv =__file_not_located ;
}
return ( _errv ) ;
}
/*
--------------------------------------------------------
* COPY-HFUN: copy HFUN input data.
--------------------------------------------------------
*/
template <
typename jlog_data
>
__normal_call iptr_type copy_hfun (
jcfg_data &_jcfg ,
jlog_data &_jlog ,
hfun_data &_hfun ,
jigsaw_msh_t const&_hmsh
)
{
return hfun_from_msht (
_jcfg, _jlog, _hfun, _hmsh);
}
/*
--------------------------------------------------------
* TEST-HFUN: test HFUN data validity.
--------------------------------------------------------
*/
template <
typename jlog_data
>
__normal_call iptr_type test_hfun (
jcfg_data &_jcfg ,
jlog_data &_jlog ,
hfun_data &_hfun
)
{
iptr_type _errv = __no_error ;
__unreferenced(_jcfg) ;
if (_hfun._ndim == +2 &&
_hfun._kind ==
jmsh_kind::euclidean_mesh)
{
/*--------------------------------- euclidean-mesh-2d */
real_type _hmin =
std::numeric_limits<real_type>::max() ;
iptr_type _imin =
std::numeric_limits<iptr_type>::max() ;
iptr_type _imax =
std::numeric_limits<iptr_type>::min() ;
iptr_type _nmax = +0 ;
for (auto _iter = _hfun.
_euclidean_mesh_2d._mesh._set1.head() ;
_iter != _hfun.
_euclidean_mesh_2d._mesh._set1.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_hmin = std::min(
_hmin, _iter->hval ()) ;
}
for (auto _iter = _hfun.
_euclidean_mesh_2d._mesh._set1.head() ;
_iter != _hfun.
_euclidean_mesh_2d._mesh._set1.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_nmax += +1 ;
}
for (auto _iter = _hfun.
_euclidean_mesh_2d._mesh._set3.head() ;
_iter != _hfun.
_euclidean_mesh_2d._mesh._set3.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_imin = std::min(
_imin, _iter->node(0)) ;
_imin = std::min(
_imin, _iter->node(1)) ;
_imin = std::min(
_imin, _iter->node(2)) ;
_imax = std::max(
_imax, _iter->node(0)) ;
_imax = std::max(
_imax, _iter->node(1)) ;
_imax = std::max(
_imax, _iter->node(2)) ;
}
if (_hmin <= (real_type) +0.)
{
_jlog.push (
"**input error: HFUN. values must be strictly +ve.\n") ;
_errv = __invalid_argument ;
}
if (_imin < +0 || _imax>=_nmax)
{
_jlog.push (
"**input error: HFUN. tria. indexing is incorrect.\n") ;
_errv = __invalid_argument ;
}
}
else
if (_hfun._ndim == +2 &&
_hfun._kind ==
jmsh_kind::euclidean_grid)
{
/*--------------------------------- euclidean-grid-2d */
real_type _hmin =
std::numeric_limits<real_type>::infinity();
for (auto _iter = _hfun.
_euclidean_grid_2d._hmat.head();
_iter != _hfun.
_euclidean_grid_2d._hmat.tend();
++_iter )
{
_hmin = std::min(_hmin, *_iter) ;
}
bool_type _mono = true;
if(!_hfun._euclidean_grid_2d._xpos.empty())
for (auto _iter = _hfun.
_euclidean_grid_2d._xpos.head();
_iter != _hfun.
_euclidean_grid_2d._xpos.tail();
++_iter )
{
if (*(_iter+1) < *(_iter+0))
{
_mono = false; break;
}
}
if(!_hfun._euclidean_grid_2d._ypos.empty())
for (auto _iter = _hfun.
_euclidean_grid_2d._ypos.head();
_iter != _hfun.
_euclidean_grid_2d._ypos.tail();
++_iter )
{
if (*(_iter+1) < *(_iter+0))
{
_mono = false; break;
}
}
auto _xnum = _hfun.
_euclidean_grid_2d._xpos.count();
auto _ynum = _hfun.
_euclidean_grid_2d._ypos.count();
auto _hnum = _hfun.
_euclidean_grid_2d._hmat.count();
if (_hnum != _xnum * _ynum)
{
_jlog.push (
"**input error: HFUN. matrix incorrect dimensions.\n") ;
_errv = __invalid_argument ;
}
if (_hmin <= (real_type) +0.)
{
_jlog.push (
"**input error: HFUN. values must be strictly +ve.\n") ;
_errv = __invalid_argument ;
}
if (!_mono)
{
_jlog.push (
"**input error: grid must be monotonic increasing.\n") ;
_errv = __invalid_argument ;
}
}
else
if (_hfun._ndim == +3 &&
_hfun._kind ==
jmsh_kind::euclidean_mesh)
{
/*--------------------------------- euclidean-mesh-3d */
real_type _hmin =
std::numeric_limits<real_type>::max() ;
iptr_type _imin =
std::numeric_limits<iptr_type>::max() ;
iptr_type _imax =
std::numeric_limits<iptr_type>::min() ;
iptr_type _nmax = +0 ;
for (auto _iter = _hfun.
_euclidean_mesh_3d._mesh._set1.head() ;
_iter != _hfun.
_euclidean_mesh_3d._mesh._set1.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_hmin = std::min(
_hmin, _iter->hval ()) ;
}
for (auto _iter = _hfun.
_euclidean_mesh_3d._mesh._set1.head() ;
_iter != _hfun.
_euclidean_mesh_3d._mesh._set1.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_nmax += +1 ;
}
for (auto _iter = _hfun.
_euclidean_mesh_3d._mesh._set4.head() ;
_iter != _hfun.
_euclidean_mesh_3d._mesh._set4.tend() ;
++_iter )
{
if (_iter->mark() < 0) continue ;
_imin = std::min(
_imin, _iter->node(0)) ;
_imin = std::min(
_imin, _iter->node(1)) ;
_imin = std::min(
_imin, _iter->node(2)) ;
_imin = std::min(
_imin, _iter->node(3)) ;
_imax = std::max(
_imax, _iter->node(0)) ;
_imax = std::max(
_imax, _iter->node(1)) ;
_imax = std::max(
_imax, _iter->node(2)) ;
_imax = std::max(
_imax, _iter->node(3)) ;
}
if (_hmin <= (real_type) +0.)
{
_jlog.push (
"**input error: HFUN. values must be strictly +ve.\n") ;
_errv = __invalid_argument ;
}
if (_imin < +0 || _imax>=_nmax)
{
_jlog.push (
"**input error: HFUN. tria. indexing is incorrect.\n") ;
_errv = __invalid_argument ;
}
}
else
if (_hfun._ndim == +3 &&
_hfun._kind ==
jmsh_kind::euclidean_grid)
{
/*--------------------------------- euclidean-grid-3d */
real_type _hmin =
std::numeric_limits<real_type>::infinity();
for (auto _iter = _hfun.
_euclidean_grid_3d._hmat.head();
_iter != _hfun.
_euclidean_grid_3d._hmat.tend();
++_iter )
{
_hmin = std::min(_hmin, *_iter) ;
}
bool_type _mono = true;
if(!_hfun._euclidean_grid_3d._xpos.empty())
for (auto _iter = _hfun.
_euclidean_grid_3d._xpos.head();
_iter != _hfun.
_euclidean_grid_3d._xpos.tail();
++_iter )
{
if (*(_iter+1) < *(_iter+0))
{