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libmultiscale/src/dumper/dumper_grid.cc
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dumper_grid.cc
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/**
* @file dumper_grid.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date Wed Jul 09 21:59:47 2014
*
* @brief This dumper allows to use a grid so as to reduce on a per-cell basis
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* LibMultiScale is free software: you can redistribute it and/or modify it
* under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* LibMultiScale is distributed in the hope that it will be useful, but
* WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with LibMultiScale. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "dumper_grid.hh"
#include "cube.hh"
#include "lib_continuum.hh"
#include "lib_dd.hh"
#include "lib_md.hh"
#include "lm_common.hh"
#include "lm_file.hh"
#include "ref_point_data.hh"
#include <iomanip>
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
template <typename Cont> void DumperGrid::dump(Cont &cont) {
switch (field) {
case _displacement:
FillGrid<_displacement>(cont);
break;
case _velocity:
FillGrid<_velocity>(cont);
break;
case _force:
FillGrid<_force>(cont);
break;
default:
LM_FATAL("cannot treat this field");
}
std::stringstream fname;
fname << this->getBaseName() << "_grid." << std::setfill('0') << std::setw(4)
<< this->action_step << ".txt";
LMFile file(fname.str());
// std::vector<std::vector<Tensor> *> &blocks = grid->getBlocks();
LM_TOIMPLEMENT;
// Real x = 0, y = 0, z = 0;
// std::vector<Real> force_x;
// for (UInt i = 0; i < grid->getSize(); ++i)
// if (blocks[i]) {
// grid->index2Coordinates(i, x, y, z);
// Tensor t;
// t = grid->extractBoxValue(i, op);
// file.printf(
// "%d\t%.15e\t%.15e\t%.15e\t%.15e\t%.15e\t%.15e\t%.15e\t%.15e\t%.15e\n",
// i, x, y, z, t[0], t[1], t[2], t[3], t[4], t[5]);
// }
// file.close();
// delete (grid);
// grid = NULL;
}
/* -------------------------------------------------------------------------- */
template <FieldType type, typename Cont> void DumperGrid::FillGrid(Cont &cont) {
if (cont.size() == 0)
return;
LM_TOIMPLEMENT;
// Cube &cube = cont.getBoundingBox();
// constexpr UInt Dim = Cont::Dim;
// for (UInt i = 0; i < Dim; ++i) {
// if (gridspace[i] == -1 && griddivision[i] == UINT_MAX)
// LM_FATAL("GRIDSPACE or GRIDDIVISION keyword should be used for
// direction "
// << i);
// }
// Vector<Dim> gridspace2 = gridspace.block<Dim,1>(0,0);
// Vector<Dim> griddivision2 = griddivision.block<Dim,1>(0,0);
// grid =
// new SpatialGridPoint<Tensor, Cont::Dim>(cube, gridspace2,
// griddivision2);
// for (auto &&at : cont) {
// Vector<Cont::Dim> x = at.position0();
// if (current_flag)
// x = at.position();
// auto tmp = at.template field<type>();
// Tensor t;
// for (UInt i = 0; i < Dim; ++i)
// t[i] = tmp[i];
// grid->addElement(t, x);
// }
// DUMP("we have as average " << grid->getAverageEltByBlock()
// << " points per block",
// DBG_MESSAGE);
}
/* -------------------------------------------------------------------------- */
/* LMDESC GRID
This dumper allows to use a grid so as to reduce on a per-cell basis.
A point/nodes based sorting into a spatial grid is used.
It admits several options that could be model dependent.
*/
/* LMEXAMPLE DUMPER GRID GRIDSPACE 10 10 10 PREFIX /home/titeuf */
/* LMHERITANCE dumper_interface */
inline void DumperGrid::declareParams() {
DumperInterface::declareParams();
/* LMKEYWORD GRID_DIVISIONX
Set the number of grid cells in x direction
*/
this->parseKeyword("GRID_DIVISIONX", griddivision[0]);
/* LMKEYWORD GRID_DIVISIONY
Set the number of grid cells in y direction
*/
this->parseKeyword("GRID_DIVISIONY", griddivision[1]);
/* LMKEYWORD GRID_DIVISIONZ
Set the number of grid cells in x direction
*/
this->parseKeyword("GRID_DIVISIONZ", griddivision[2]);
/* LMKEYWORD GRID_DIVISION
Allows to set the number of grid cells in all directions of
space, see GRID\_DIVISION\_X/Y/Z
*/
this->parseVectorKeyword("GRID_DIVISION", 3, griddivision);
/* LMKEYWORD GRIDSPACEX
Set the cell size in the X direction for the grid generation
*/
this->parseKeyword("GRIDSPACEX", gridspace[0]);
/* LMKEYWORD GRIDSPACEY
Set the cell size in the Y direction for the grid generation
*/
this->parseKeyword("GRIDSPACEY", gridspace[1]);
/* LMKEYWORD GRIDSPACEZ
Set the cell size in the Z direction for the grid generation
*/
this->parseKeyword("GRIDSPACEZ", gridspace[2]);
/* LMKEYWORD GRIDSPACE
The implementation of the Bridging domain method needs a match
between elements and atoms to be made at initialisation of the
bridging zones. This could be a very costful operation. \\
In order to break the complexity of such a stage, the
elements are first stored in a grid for which
number of cells (in each direction) are specified by this keyword.
*/
this->parseVectorKeyword("GRIDSPACE", 3, gridspace);
/* LMKEYWORD OPERATOR
Specify the operator to reduce the information per cell \\
The possible operators are for now:
- SUM: perform a sum per cell :math:`\sum_{i \in cell} v_i`
- AVERAGE: perform an average per cell :math:`\frac{1}{\#cell}\sum_{i \in
cell} v_i`
- DENSITY: perform the volumetric average :math:`\overline{v} =
\frac{1}{vol(cell)}\sum_{i \in cell} v_i`
- DEVIATION: compute the standard deviation :math:`\frac{1}{\#cell}\sum_{i
\in cell} (v_i - \overline{v} )^2`
- MAX: compute the max value
- MIN: compute the min value
*/
this->parseKeyword("OPERATOR", op);
/* LMKEYWORD CURRENT_POSITION
All the points/atoms/nodes are sorted in a spatial grid. By default the
initial position of
these points/atoms/nodes are considered. This flag allows to consider
current positions instead.
*/
this->parseTag("CURRENT_POSITION", current_flag);
/* LMKEYWORD FIELD
Request to perform the grid reduction on the provided field
*/
this->parseKeyword("FIELD", field);
}
/* -------------------------------------------------------------------------- */
DumperGrid::DumperGrid(const std::string &name) : LMObject(name) {
current_flag = 0;
for (UInt i = 0; i < 3; ++i)
gridspace[i] = -1.;
for (UInt i = 0; i < 3; ++i)
griddivision[i] = UINT_MAX;
op = OP_AVERAGE;
// grid = NULL;
}
/* -------------------------------------------------------------------------- */
DumperGrid::~DumperGrid() {}
/* -------------------------------------------------------------------------- */
DECLARE_DUMPER_MAKE_CALL(DumperGrid)
__END_LIBMULTISCALE__
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