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surface_generator_filter.hh
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Sun, Apr 28, 15:29
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rTAMAAS tamaas
surface_generator_filter.hh
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/**
* @file
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas 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.
*
* Tamaas 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 Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef SURFACE_GENERATOR_FILTER_H
#define SURFACE_GENERATOR_FILTER_H
/* -------------------------------------------------------------------------- */
#include "filter.hh"
#include "surface_generator.hh"
#include "tamaas.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
template
<
UInt
dim
>
class
SurfaceGeneratorFilter
:
public
SurfaceGenerator
<
dim
>
{
public
:
/// Default constructor
SurfaceGeneratorFilter
()
=
default
;
/// Destructor
virtual
~
SurfaceGeneratorFilter
();
public
:
/// Build surface with Hu & Tonder algorithm
Grid
<
Real
,
dim
>&
buildSurface
()
override
;
/// Set filter object (need namespace for swig)
void
setFilter
(
::
tamaas
::
Filter
<
dim
>*
new_filter
);
protected
:
/// Apply filter coefficients on white noise
void
applyFilterOnSource
();
/// Generate white noise with given distribution
template
<
typename
T
>
void
generateWhiteNoise
();
protected
:
Filter
<
dim
>*
filter
=
nullptr
;
///< not owned
GridHermitian
<
Real
,
dim
>
filter_coefficients
;
Grid
<
Real
,
dim
>
white_noise
;
};
/* -------------------------------------------------------------------------- */
/* Template implementations */
/* -------------------------------------------------------------------------- */
template
<
UInt
dim
>
template
<
typename
T
>
void
SurfaceGeneratorFilter
<
dim
>::
generateWhiteNoise
()
{
random_engine
gen
(
this
->
random_seed
);
T
distribution
;
for
(
auto
&
noise
:
white_noise
)
noise
=
distribution
(
gen
);
}
__END_TAMAAS__
#endif
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