bool WwRIFFVorbisStream::rewind() {
_end = false;
Common::ScopedPtr<Common::SeekableReadStream> headerIdentification(generateHeaderIdentification());
Common::ScopedPtr<Common::SeekableReadStream> headerComment(generateHeaderComment());
Common::ScopedPtr<Common::SeekableReadStream> headerSetup(generateHeaderSetup());
#ifdef ENABLE_VORBIS
_vorbis.reset(Sound::makePacketizedVorbisStream(*headerIdentification, *headerComment, *headerSetup));
#else
throw Common::Exception("Vorbis decoding disabled when building without libvorbis");
#endif
_currentOffset = _dataOffset + _firstAudioPacketOffset;
return true;
}
/**
* Calculates potential and electric field at the required points, and stores
* them in file 'results.vtk' using the vtk format.
*
* It also calculates the force on the dielectric interface if required and
* stores it in file 'force-mst.dat' or 'force-mp.dat' for MST and multipolar
* approximations respectively.
*
* Works for quadratic interpolation in triangular elements (6-noded triangles).
*
* @param ANALYSIS : [ Input ] Type of post-processing to be done
* @param cOutputType : [ Input ] Output format type
* @param axis : [ Input ] Semi-axis of ellipsoidal particle
* @param XF : [ Input ] Points where the force should be calculated
* @param Xinner : [ Input ] Nodes where potential and/or field should be calculated
* @param mNodes : [ Input ] Coordinates of all nodes in the computational domain
* @param mElems : [ Input ] Connectivity of all nodes in the computational domain
* @param vMatParam : [ Input ] Electric properties of dielectric materials
* @param vProbParam : [ Input ] Frequency of the applied electric field
* @param vBCType : [ Input ] Boundary condition type for each node in the domain
* @param vB : [ Input ] Solution vector for the electrostatic problem
*/
int vtkPostProcess_tria6(unsigned int ANALYSIS,
char *cOutputType,
double *axis,
double **XF,
double **Xinner,
double **mNodes,
unsigned int **mElems,
double **vMatParam,
double *vProbParam,
unsigned int *vBCType,
double *vB)
{
FILE *fp[3];
unsigned int i, nOrder, nShape;
double Eps, R;
double Fcm[3], mE[6], mPot[2], Xin[3], Xcm[3], Xeval[3];
double **Fce, **Xce;
/* Setup the header of the output files */
headerSetup(ANALYSIS,cOutputType,fp,Xinner);
/* Electric potential at the required points */
if( nInternalPoints > 0 ){
mPot[0] = mPot[1] = 0.0;
for(i = 0; i < 6; i++) mE[i] = 0.0;
fprintf(fp[0],"\n");
fprintf(fp[0],"SCALARS Re[V] double\n");
fprintf(fp[0],"LOOKUP_TABLE default\n");
for(i = 0; i < nInternalPoints; i++){
Xin[0] = Xinner[i][0];
Xin[1] = Xinner[i][1];
Xin[2] = Xinner[i][2];
potential_tria6(Xin,mNodes,mElems,vB,mPot);
fprintf(fp[0],"%e\n",mPot[0]);
}
/* Electric potential at the required points */
fprintf(fp[0],"\n");
fprintf(fp[0],"SCALARS Im[V] double\n");
fprintf(fp[0],"LOOKUP_TABLE default\n");
for(i = 0; i < nInternalPoints; i++){
Xin[0] = Xinner[i][0];
Xin[1] = Xinner[i][1];
Xin[2] = Xinner[i][2];
potential_tria6(Xin,mNodes,mElems,vB,mPot);
fprintf(fp[0],"%e\n",mPot[1]);
}
/* Electric field at the required points */
fprintf(fp[0],"\n");
fprintf(fp[0],"VECTORS Re[E] double\n");
for(i = 0; i < nInternalPoints; i++){
Xin[0] = Xinner[i][0];
Xin[1] = Xinner[i][1];
Xin[2] = Xinner[i][2];
field_tria6(Xin,mNodes,mElems,vB,mE);
fprintf(fp[0],"%e\t%e\t%e\n",mE[0],mE[2],mE[4]);
}
/* Electric field at the required points */
fprintf(fp[0],"\n");
fprintf(fp[0],"VECTORS Im[E] double\n");
for(i = 0; i < nInternalPoints; i++){
Xin[0] = Xinner[i][0];
Xin[1] = Xinner[i][1];
Xin[2] = Xinner[i][2];
field_tria6(Xin,mNodes,mElems,vB,mE);
fprintf(fp[0],"%e\t%e\t%e\n",mE[1],mE[3],mE[5]);
}
fclose(fp[0]);
}
/* Calculate Fdep at dielectric interfaces if required */
if(ANALYSIS == 3 || ANALYSIS == 4){
Fce = doubleMatrix(nElems,3,1);
Xce = doubleMatrix(nElems,3,1);
Eps = vMatParam[0][1]*eps0;
forceMST_tria6(mNodes,mElems,vBCType,vB,Eps,Fce,Xce,Fcm,Xcm);
fprintf(fp[2],"%e\t%e\t%e\t%e\t%e\t%e\n",Xcm[0],Xcm[1],Xcm[2],Fcm[0],Fcm[1],Fcm[2]);
for(i = 0; i < nElems; i++){
if(vBCType[mElems[i][0]-1] == 6){
fprintf(fp[2],"%e\t%e\t%e\t",Xce[i][0],Xce[i][1],Xce[i][2]);
fprintf(fp[2],"%e\t%e\t%e\n",Fce[i][0],Fce[i][1],Fce[i][2]);
}
}
fclose(fp[2]);
freeDoubleMatrix(Fce,nElems);
freeDoubleMatrix(Xce,nElems);
}
/* Calculate Fdep at particle centre using multipolar method if required */
else if(ANALYSIS > 4){
multipoleSetup(ANALYSIS,axis,&nShape,&nOrder,&R);
for(i = 0; i < nFPoints; i++){
Xeval[0] = XF[i][0];
Xeval[1] = XF[i][1];
Xeval[2] = XF[i][2];
if(nShape == 0) forceMultipole_tria6(nOrder,R,Xeval,mNodes,mElems,vB,vMatParam,vProbParam,Fcm);
else forceEllipsoid_tria6(ANALYSIS,nOrder,axis,Xeval,mNodes,mElems,vB,vMatParam,vProbParam,Fcm);
fprintf(fp[2],"%e\t%e\t%e\t",Xeval[0],Xeval[1],Xeval[2]);
fprintf(fp[2],"%e\t%e\t%e\n",Fcm[0],Fcm[1],Fcm[2]);
}
fclose(fp[2]);
}
return 0;
}