Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F60246705
surface_generator_filter.cpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Sun, Apr 28, 14:56
Size
2 KB
Mime Type
text/x-c++
Expires
Tue, Apr 30, 14:56 (2 d)
Engine
blob
Format
Raw Data
Handle
17324595
Attached To
rTAMAAS tamaas
surface_generator_filter.cpp
View Options
/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2022 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2022 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
#include "surface_generator_filter.hh"
#include <iostream>
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
/* -------------------------------------------------------------------------- */
template
<
UInt
dim
>
void
SurfaceGeneratorFilter
<
dim
>::
applyFilterOnSource
()
{
GridHermitian
<
Real
,
dim
>
fft_white_noise
(
filter_coefficients
.
sizes
(),
1
);
engine
->
forward
(
this
->
white_noise
,
fft_white_noise
);
fft_white_noise
*=
filter_coefficients
;
engine
->
backward
(
this
->
grid
,
fft_white_noise
);
}
/* -------------------------------------------------------------------------- */
template
<
UInt
dim
>
Grid
<
Real
,
dim
>&
SurfaceGeneratorFilter
<
dim
>::
buildSurface
()
{
if
(
this
->
grid
.
dataSize
()
==
0
)
TAMAAS_EXCEPTION
(
"the size of the grid is zero, did you call setSizes() ?"
);
if
(
this
->
filter
==
nullptr
)
TAMAAS_EXCEPTION
(
"filter is null, did you call setFilter() ?"
);
// Resizing arrays
this
->
white_noise
.
resize
(
this
->
grid
.
sizes
());
auto
hermitian_dim
=
GridHermitian
<
Real
,
dim
>::
hermitianDimensions
(
this
->
grid
.
sizes
());
this
->
filter_coefficients
.
resize
(
hermitian_dim
);
/// Generating white noise with gaussian distribution
this
->
generateWhiteNoise
<
normal_distribution
<
Real
>>
();
/// Applying filters
filter
->
computeFilter
(
this
->
filter_coefficients
);
this
->
applyFilterOnSource
();
/// Normalizing surface for hrms independent of number of points
this
->
grid
*=
std
::
sqrt
(
this
->
grid
.
globalDataSize
());
return
this
->
grid
;
}
/* -------------------------------------------------------------------------- */
template
class
SurfaceGeneratorFilter
<
1
>
;
template
class
SurfaceGeneratorFilter
<
2
>
;
/* -------------------------------------------------------------------------- */
}
// namespace tamaas
Event Timeline
Log In to Comment