void CylindricalBirefringentMaterial::dielectricTensorInPrincCrdSyst( const meep::vec &r, arma::mat &eps, const BirefringentEps &biref ) const
{
eps.set_size(3,3);
arma::vec rTrans;
transformR(r,rTrans);
for ( unsigned int i=0;i<3;i++ )
{
eps(princAxis,i) = 0.0;
eps(i,princAxis) = 0.0;
}
eps(princAxis,princAxis) = biref.ordinary;
unsigned int indx1 = (princAxis+1)%3;
unsigned int indx2 = (princAxis+2)%3;
double R = sqrt( pow(rTrans(indx1),2) + pow(rTrans(indx2),2 ));
double cosTheta = rTrans(indx1)/R;
double sinTheta = rTrans(indx2)/R;
eps(indx1,indx1) = biref.extraOrdinary*cosTheta*cosTheta + biref.ordinary*sinTheta*sinTheta;
eps(indx2,indx2) = biref.extraOrdinary*sinTheta*sinTheta + biref.ordinary*cosTheta*cosTheta;
eps(indx1,indx2) = (biref.extraOrdinary - biref.ordinary)*sinTheta*cosTheta;
eps(indx2,indx1) = eps(indx1,indx2);
}
/**
*
* @brief creates transitions for 'dup' mirroring 'orig' outgoing transitions
*
* @param - orig: the state that is being duplicated
* @param - dup: the state that is duplicating 'orig'
*
*/
void TransitionStorage::dupTransOutgoing( State orig, State dup )
{
// Duplicate outgoing internal transitions.
const Info::Internals & from = T_info.fromTrans(orig);
for( Info::InternalIterator it = from.begin(); it != from.end(); it++ )
{
Internal iTrans(dup,getInternalSym(*it),getTarget(*it));
addInternal(iTrans);
}
// Duplicate call site call transitions.
const Info::Calls & call = T_info.callTrans(orig);
for( Info::CallIterator it = call.begin(); it != call.end(); it++ )
{
Call cTrans(dup,getCallSym(*it),getEntry(*it));
addCall(cTrans);
}
// Duplicate exit point return transitions.
const Info::Returns & exit = T_info.exitTrans(orig);
for( Info::ReturnIterator it = exit.begin(); it != exit.end(); it++ )
{
Return rTrans(dup,getCallSite(*it),getReturnSym(*it),getReturnSite(*it));
addReturn(rTrans);
}
// Q: Do we want to do these? Seems inconsistent. -Evan
// A: Aditya says 'yes', and thinks we need it. So we definitely don't
// want to change it without looking at uses and compensating.
// Duplicate call predecessor return transitions.
const Info::Returns & pred = T_info.predTrans(orig);
for( Info::ReturnIterator it = pred.begin(); it != pred.end(); it++ )
{
Return rTrans(getExit(*it),dup,getReturnSym(*it),getReturnSite(*it));
addReturn(rTrans);
}
}
bool Transform::intersect(const Ray &r, Hit &h, float tmin)
{
Vec3f rTransOri = r.getOrigin();
Vec3f rTransDir = r.getDirection();
Matrix mInverse;
m.Inverse(mInverse);
mInverse.Transform(rTransOri);
mInverse.TransformDirection(rTransDir);
rTransDir.Normalize();
Ray rTrans(rTransDir,rTransOri);
Hit hTrans(10000,NULL,Vec3f(0,0,0)); //need a new hit,because the x-y-z had changed 就因为这里没有使用一个新的hit导致了自己debug了两天
instance->intersect(rTrans,hTrans,tmin);
if(hTrans.getT()<10000)
{
//world's t
float t;
//Vec3f hitPoint = rTransOri + rTransDir * hTrans.getT();
Vec3f hitPoint = rTrans.pointAtParameter(hTrans.getT());
m.Transform(hitPoint);
Vec3f rOri = r.getOrigin();
Vec3f rDir = r.getDirection();
if((fabs(rDir[0])>=fabs(rDir[1]))&&(fabs(rDir[0])>=fabs(rDir[2]))){
t = (hitPoint[0] - rOri[0]) / rDir[0];
}
else if((fabs(rDir[1])>=fabs(rDir[0]))&&(fabs(rDir[1])>=fabs(rDir[2]))){
t = (hitPoint[1] - rOri[1]) / rDir[1];
}
else if((fabs(rDir[2])>=fabs(rDir[0]))&&(fabs(rDir[2])>=fabs(rDir[1]))){
t = (hitPoint[2] - rOri[2]) / rDir[2];
}
//world's normal
mInverse.Transpose();
Vec3f wNormal = hTrans.getNormal();
mInverse.TransformDirection(wNormal);
wNormal.Normalize(); //need normalize
//h.setNormal(wNormal);
if(t>=tmin && t<=h.getT())
{
h.set(t,hTrans.getMaterial(),wNormal,r);
return 1;
}
}
return 0;
}
/**
*
* @brief creates transitions for 'dup' mirroring 'orig' transitions
*
* @param - orig: the state that is being duplicated
* @param - dup: the state that is duplicating 'orig'
*
*/
void TransitionStorage::dupTrans( State orig, State dup )
{
//Duplicate outgoing internal transitions.
const Info::Internals & from = T_info.fromTrans(orig);
for( Info::InternalIterator it = from.begin(); it != from.end(); it++ )
{
Internal iTrans(dup,getInternalSym(*it),getTarget(*it));
addInternal(iTrans);
// Q: This is also inconsistent with dupTransOutgoing, which didn't do
// anything special with self loops. -Evan
// A: Aditya says yes, but this is again what McVeto(?) needs.
// dupTrans is used in 'duplicateState', but dupTransOutgoing is
// different.
if( orig == getTarget(*it) ) //Handle self-loops.
{
Internal loop(dup,getInternalSym(*it),dup);
addInternal(loop);
}
}
//Duplicate incoming internal transitions.
const Info::Internals & to = T_info.toTrans(orig);
for( Info::InternalIterator it = to.begin(); it != to.end(); it++ )
{
Internal iTrans(getSource(*it),getInternalSym(*it),dup);
addInternal(iTrans);
}
//Duplicate call site call transitions.
const Info::Calls & call = T_info.callTrans(orig);
for( Info::CallIterator it = call.begin(); it != call.end(); it++ )
{
Call cTrans(dup,getCallSym(*it),getEntry(*it));
addCall(cTrans);
if( orig == getEntry(*it) ) //Handle self-loops.
{
Call loop(dup,getCallSym(*it),dup);
addCall(loop);
}
}
//Duplicate entry point call transitions.
const Info::Calls & entry = T_info.entryTrans(orig);
for( Info::CallIterator it = entry.begin(); it != entry.end(); it++ )
{
Call cTrans(getCallSite(*it),getCallSym(*it),dup);
addCall(cTrans);
}
//Duplicate exit point return transitions.
const Info::Returns & exit = T_info.exitTrans(orig);
for( Info::ReturnIterator it = exit.begin(); it != exit.end(); it++ )
{
Return rTrans(dup,getCallSite(*it),getReturnSym(*it),getReturnSite(*it));
addReturn(rTrans);
if( orig == getCallSite(*it) ) //Handle self-loops.
{
Return loop(dup,dup,getReturnSym(*it),getReturnSite(*it));
addReturn(loop);
}
if( orig == getReturnSite(*it) ) //Handle self-loops.
{
Return loop(dup,getCallSite(*it),getReturnSym(*it),dup);
addReturn(loop);
}
if( orig == getCallSite(*it) && orig == getReturnSite(*it) ) //Handle self-loops.
{
Return loop(dup,dup,getReturnSym(*it),dup);
addReturn(loop);
}
}
//Duplicate call predecessor return transitions.
const Info::Returns & pred = T_info.predTrans(orig);
for( Info::ReturnIterator it = pred.begin(); it != pred.end(); it++ )
{
Return rTrans(getExit(*it),dup,getReturnSym(*it),getReturnSite(*it));
addReturn(rTrans);
if( orig == getReturnSite(*it) ) //Handle self-loops.
{
Return loop(getExit(*it),dup,getReturnSym(*it),dup);
addReturn(loop);
}
}
//Duplicate return site return transitions.
const Info::Returns & ret = T_info.retTrans(orig);
for( Info::ReturnIterator it = ret.begin(); it != ret.end(); it++ )
{
Return rTrans(getExit(*it),getCallSite(*it),getReturnSym(*it),dup);
addReturn(rTrans);
}
}
