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polarSignaling.cpp
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Created
Tue, Sep 10, 16:15
Size
4 KB
Mime Type
text/x-c
Expires
Thu, Sep 12, 16:15 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
20676819
Attached To
R9411 tisue modeling
polarSignaling.cpp
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#include "polarSignaling.hpp"
using
namespace
std
;
PolarSignaling
::
PolarSignaling
(){
tau_pol
=
0.01
;
}
void
PolarSignaling
::
operator
()(
const
state_type
&
y
,
state_type
&
dydt
,
double
t
){
// only allow exchange with neighboring boundaries
// position-dependent pull factor
// cout<<"starting us"<<endl;
updateSignal
(
y
);
// cout<<"uss done"<<endl;
int
n
=
lattice
->
getNbCells
();
for
(
int
c
=
0
;
c
<
n
;
c
++
){
Cell
&
ce
=
lattice
->
getCell
(
c
);
if
(
!
ce
.
isEmpty
()
&&
!
ce
.
isFrozen
()){
double
sum
=
0.0
;
BoundaryIterator
it
(
&
ce
);
for
(
Boundary
*
b
=
it
.
first
();
!
it
.
isLast
();
b
=
it
.
next
()){
// cout<<"idx 0 "<<b->id()<<endl;
uint
idx
=
b
->
stateVectorIndex
();
uint
cidx
=
b
->
cell
()
->
id
();
if
(
b
->
oppositeCell
()){
uint
oidx
=
b
->
oppositeCell
()
->
id
();
// cout<<"idx "<<idx<<" "<<oidx<<endl;
// cout<<"idx2 "<<idx<<" "<<oidx<<endl;
Vec2
v
=
b
->
positionRelativeToCell
();
try
{
v
.
Normalize
();}
catch
(...){
v
=
Vec2
(
0
,
0
);}
// cout<<"position "<<v<<endl;
// cout<<"vi "<<v<<endl;
// if (isnan(y[idx])) {cout<<"cell "<<c<<" vec "<<v<<endl;exit(0);}
// v *= fabs(y[idx])/v.Norm();
v
*=
fabs
(
y
[
idx
]);
///v.Norm(); //why not 1/v.Norm()???
double
dv
=
tau_pol
*
sin
(
v
.
Dot
(
m_cellPolarity
[
oidx
]
+
m_cellPolarity
[
cidx
]));
// cout<<"dv "<<dv<<" / "<<v.Dot(m_cellPolarity[oidx]) << ":"<< m_cellPolarity[oidx] << " ++ " << v<<endl;
dydt
[
idx
]
=
dv
;
sum
+=
dv
;
// cout<<"dv out "<<sum<<endl;
}
}
sum
/=
ce
.
getNbBoundaries
();
// cout<<"sum "<<ce.id()<<": "<<sum<<endl;
// remove average dydt
for
(
Boundary
*
b
=
it
.
first
();
!
it
.
isLast
();
b
=
it
.
next
()){
uint
idx
=
b
->
stateVectorIndex
();
dydt
[
idx
]
-=
sum
;
}
}
}
}
/*
void PolarSignaling::operator()(const state_type &y, state_type &dydt,double t){
// only allow exchange with neighboring boundaries
// position-dependent pull factor
int n= lattice->getNbCells();
for (int c=0;c<n;c++){
Cell& ce = lattice->getCell(c);
if(!ce.isFrozen()){
BoundaryIterator it(&ce);
for(Boundary *b=it.first();!it.isLast();b=it.next()){
uint idx = b->stateVectorIndex();
uint oidx = b->opposite()->stateVectorIndex();
uint pidx = b->prev()->stateVectorIndex();
uint nidx = b->next()->stateVectorIndex();
uint opidx = b->prev()->opposite()->stateVectorIndex();
uint onidx = b->next()->opposite()->stateVectorIndex();
Vec2 v = b->positionRelativeToCell();
Vec2 pv = b->prev()->positionRelativeToCell();
Vec2 nv = b->next()->positionRelativeToCell();
double pfac = fabs(fabs(v.sinAngle(Vec2(1,0)))-fabs(pv.sinAngle(Vec2(1,0))));
double nfac = fabs(fabs(v.sinAngle(Vec2(1,0)))-fabs(nv.sinAngle(Vec2(1,0))));
dydt[idx] = tau_pol*y[idx]*
(pfac*y[pidx]*(y[oidx]-y[opidx])+nfac*y[nidx]*(y[oidx]-y[onidx]));
}
}
}
}
*/
float
PolarSignaling
::
getWeight
(
Boundary
*
b
){
return
1.0
;
}
void
PolarSignaling
::
initBoundary
(
Boundary
*
bo
,
state_type
*
state
){
// compute position and share across boundaries
uint
idx
=
bo
->
stateVectorIndex
();
uint
n
=
bo
->
cell
()
->
getNbBoundaries
();
double
pol
=
(
RND
(
0.001
)
+
0.9995
)
/
n
;
(
*
state
)[
idx
]
=
pol
;
m_polarity
[
bo
->
id
()]
=
pol
;
cout
<<
pol
<<
endl
;
}
void
PolarSignaling
::
updateSignal
(
const
state_type
&
state
){
uint
nbcells
=
lattice
->
getNbCells
();
for
(
uint
c
=
0
;
c
<
nbcells
;
c
++
){
Cell
&
ce
=
lattice
->
getCell
(
c
);
double
sum
=
0.0
;
m_cellPolarity
[
ce
.
id
()]
=
Vec2
(
0
,
0
);
if
(
!
ce
.
isEmpty
()
&&
!
ce
.
isFrozen
()){
BoundaryIterator
it
(
&
ce
);
for
(
Boundary
*
b
=
it
.
first
();
!
it
.
isLast
();
b
=
it
.
next
()){
double
vi
=
state
[
b
->
stateVectorIndex
()];
m_polarity
[
b
->
id
()]
=
vi
;
Vec2
v
=
b
->
positionRelativeToCell
(
true
);
// cout<<"us "<< vi<< " : "<<v<<endl;
try
{
v
.
Normalize
();
}
catch
(...){
v
=
Vec2
(
0
,
0
);}
m_cellPolarity
[
ce
.
id
()]
+=
v
*
vi
;
sum
+=
vi
;
}
if
(
sum
>
EPSILON
)
m_cellPolarity
[
ce
.
id
()]
/=
sum
;
}
}
// cout<<"us done"<<endl;
}
void
PolarSignaling
::
initState
(
state_type
&
state
,
double
*
signal
){
uint
nbcells
=
lattice
->
getNbCells
();
for
(
uint
c
=
0
;
c
<
nbcells
;
c
++
){
Cell
&
ce
=
lattice
->
getCell
(
c
);
if
(
!
ce
.
isEmpty
()){
BoundaryIterator
it
(
&
ce
);
for
(
Boundary
*
b
=
it
.
first
();
!
it
.
isLast
();
b
=
it
.
next
()){
m_polarity
[
b
->
id
()]
=
state
[
b
->
stateVectorIndex
()]
=
signal
[
b
->
id
()];
}
}
}
}
void
PolarSignaling
::
initState
(
state_type
&
state
){
CellInteraction
::
initState
(
state
);
// uint nbcells = lattice->getNbCells();
// for (uint c=0;c<nbcells;c++){
// Cell& ce = lattice->getCell(c);
// if(!ce.isEmpty()){
// BoundaryIterator it(&ce);
// for(Boundary *b=it.first();!it.isLast();b=it.next()){
// state[b->stateVectorIndex()]=m_polarity[b->id()];
// }
// }
// }
}
void
PolarSignaling
::
fillVector
(
double
*
v
,
int
i
)
const
{
uint
cnt
=
0
;
switch
(
i
){
case
0
:
for
(
uint
i
=
0
;
i
<
m_polarity
.
size
();
i
++
){
v
[
i
]
=
m_polarity
[
i
];
}
break
;
case
1
:
for
(
uint
i
=
0
;
i
<
m_cellPolarity
.
size
();
i
++
){
v
[
cnt
++
]
=
m_cellPolarity
[
i
][
0
];
v
[
cnt
++
]
=
m_cellPolarity
[
i
][
1
];
}
break
;
default
:
break
;
}
}
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