Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F80358964
contact_detector.hh
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
Sat, Aug 31, 08:12
Size
7 KB
Mime Type
text/x-c++
Expires
Mon, Sep 2, 08:12 (2 d)
Engine
blob
Format
Raw Data
Handle
20323657
Attached To
rAKA akantu
contact_detector.hh
View Options
/**
* @file contact_detection.hh
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Wed Sep 12 2018
* @date last modification: Tue Oct 23 2018
*
* @brief Mother class for all detection algorithms
*
* @section LICENSE
*
* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "aka_memory.hh"
#include "aka_grid_dynamic.hh"
#include "aka_bbox.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "fe_engine.hh"
#include "parsable.hh"
#include "element_group.hh"
#include "contact_element.hh"
#include "element_class.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_CONTACT_DETECTOR_HH__
#define __AKANTU_CONTACT_DETECTOR_HH__
namespace
akantu
{
enum
class
Surface
{
master
,
slave
};
/* -------------------------------------------------------------------------- */
class
ContactDetector
:
private
Memory
,
public
Parsable
{
/* ------------------------------------------------------------------------ */
/* Constructor/Destructors */
/* ------------------------------------------------------------------------ */
public
:
ContactDetector
(
Mesh
&
,
const
ID
&
id
=
"contact_detector"
,
UInt
memory_id
=
0
);
ContactDetector
(
Mesh
&
,
Array
<
Real
>
positions
,
const
ID
&
id
=
"contact_detector"
,
UInt
memory_id
=
0
);
~
ContactDetector
()
=
default
;
/* ------------------------------------------------------------------------ */
/* Members */
/* ------------------------------------------------------------------------ */
public
:
/// performs the all search steps
void
search
(
std
::
map
<
UInt
,
ContactElement
>
&
);
/// performs global spatial search to construct spatial grids
void
globalSearch
(
SpatialGrid
<
UInt
>
&
,
SpatialGrid
<
UInt
>
&
);
/// performs local search to find closet master node to a slave node
void
localSearch
(
SpatialGrid
<
UInt
>
&
,
SpatialGrid
<
UInt
>
&
);
/// constructs contact map for a given pair of slave and master node
void
constructContactMap
(
std
::
map
<
UInt
,
ContactElement
>
&
);
private
:
/// reads the input file to get contact detection options
void
parseSection
();
/// extracts vectors which forms the plane of element
void
vectorsAlongElement
(
const
Element
&
/* element id */
,
Matrix
<
Real
>
&
/* vectors matrix */
);
/// computes orthogonal projection on master elements
void
computeOrthogonalProjection
(
const
UInt
&
/* slave node */
,
const
Array
<
Element
>
&
/* master elements */
,
Array
<
Real
>
&
/* normals */
,
Array
<
Real
>
&
/* gaps */
,
Array
<
Real
>
&
/* projections */
);
/// computes normal on an element
void
computeNormalOnElement
(
const
Element
&
/* element id */
,
Vector
<
Real
>
&
/* normal vector */
);
/// computes tangents on a given natural coordinate
void
computeTangentsOnElement
(
const
Element
&
,
Vector
<
Real
>
&
,
Matrix
<
Real
>
&
);
/// computes projection of a query point on an element
void
computeProjectionOnElement
(
const
Element
&
/* element */
,
const
Vector
<
Real
>
&
/* normal */
,
const
Vector
<
Real
>
&
/* query */
,
Vector
<
Real
>
&
/* projection
*/
,
Vector
<
Real
>
&
/* real_projection */
);
/// computes natural projection of a real projection
void
computeNaturalProjection
(
const
Element
&
/* element */
,
Vector
<
Real
>
&
/* real projection */
,
Vector
<
Real
>
&
/* natural projection */
);
/// compute normal projection of slave coord on a given element
void
normalProjection
(
const
Element
&
el
,
const
Vector
<
Real
>
&
slave_coord
,
Vector
<
Real
>
&
natural_coord
,
Real
&
tolerance
);
/* ------------------------------------------------------------------------ */
/* Inline Methods */
/* ------------------------------------------------------------------------ */
public
:
/// checks whether the natural projection is valid or not
inline
bool
checkValidityOfProjection
(
Vector
<
Real
>
&
);
/// extracts the coordinates of an element
inline
void
coordinatesOfElement
(
const
Element
&
,
Matrix
<
Real
>
&
);
/// computes the optimal cell size for grid
inline
void
computeCellSpacing
(
Vector
<
Real
>
&
);
/// constructs a grid containing nodes lying within bounding box
inline
void
constructGrid
(
SpatialGrid
<
UInt
>
&
,
BBox
&
,
const
Array
<
UInt
>
&
);
/// constructs the bounding box based on nodes list
inline
void
constructBoundingBox
(
BBox
&
,
const
Array
<
UInt
>
&
);
/// get the surface id
template
<
Surface
id
>
inline
std
::
string
getSurfaceId
();
/// set the surface id
template
<
Surface
id
>
inline
void
setSurfaceId
(
const
std
::
string
);
/// computes the maximum in radius for a given mesh
inline
void
computeMaximalDetectionDistance
();
/// constructs the connectivity for a contact element
inline
Vector
<
UInt
>
constructConnectivity
(
UInt
&
,
const
Element
&
);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
/// returns the maximum detection distance
AKANTU_GET_MACRO
(
MaximumDetectionDistance
,
max_dd
,
Real
);
/// sets the maximum detection distance
AKANTU_SET_MACRO
(
MaximumDetectionDistance
,
max_dd
,
Real
);
/// returns the bounding box extension
AKANTU_GET_MACRO
(
MaximumBoundingBox
,
max_bb
,
Real
);
/// sets the bounding box extension
AKANTU_SET_MACRO
(
MaximumBoundingBox
,
max_bb
,
Real
);
/// returns the positions
AKANTU_GET_MACRO
(
Positions
,
positions
,
Array
<
Real
>
);
/// sets the positions
AKANTU_SET_MACRO
(
Positions
,
positions
,
Array
<
Real
>
);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private
:
/// maximal detection distance for grid spacing
Real
max_dd
;
/// maximal bounding box extension
Real
max_bb
;
/// Mesh
Mesh
&
mesh
;
/// dimension of the model
UInt
spatial_dimension
{
0
};
/// map to contain ids for surfaces
std
::
map
<
Surface
,
std
::
string
>
surfaces
;
/// contact pair slave node to closet master node
std
::
vector
<
std
::
pair
<
UInt
,
UInt
>
>
contact_pairs
;
/// contains the updated positions of the nodes
Array
<
Real
>
positions
;
/// type of detection explicit/implicit
DetectionType
detection_type
;
};
}
// namespace akantu
#include "contact_detector_inline_impl.cc"
#endif
/* __AKANTU_CONTACT_DETECTOR_HH__ */
Event Timeline
Log In to Comment