+#else
+ Array2d<double> adView (nx, ny);
+ Array2d<double> adDet (nx, ny);
+ double** ppdView = adView.getArray();
+ double** ppdDet = adDet.getArray();
+
+ std::complex<double>** ppcDetValue = new std::complex<double>* [m_nView];
+ unsigned int iView;
+ double* pdDet = new double [m_nDet];
+ fftw_complex* pcIn = new fftw_complex [m_nDet];
+ fftw_plan plan = fftw_create_plan (m_nDet, FFTW_FORWARD, FFTW_IN_PLACE);
+
+ for (iView = 0; iView < m_nView; iView++) {
+ unsigned int iDet;
+ for (iDet = 0; iDet < m_nDet; iDet++) {
+ pcIn[iDet].re = getDetectorArray(iView).detValues()[iDet];
+ pcIn[iDet].im = 0;
+ }
+ fftw_one (plan, pcIn, NULL);
+ ppcDetValue[iView] = new std::complex<double> [m_nDet];
+ for (iDet = 0; iDet < m_nDet; iDet++)
+ ppcDetValue[iView][iDet] = std::complex<double> (pcIn[iDet].re, pcIn[iDet].im);
+ Fourier::shuffleFourierToNaturalOrder (ppcDetValue[iView], m_nDet);
+ }
+
+ fftw_destroy_plan (plan);
+ delete [] pcIn;
+
+ calcArrayPolarCoordinates (nx, ny, ppdView, ppdDet);
+
+ interpolatePolar (v, vImag, nx, ny, ppcDetValue, ppdView, ppdDet, m_nView, m_nDet, iInterpolationID);
+
+ for (iView = 0; iView < m_nView; iView++)
+ delete [] ppcDetValue[iView];
+ delete [] ppcDetValue;
+
+ return true;
+#endif
+}
+
+
+void
+Projections::calcArrayPolarCoordinates (unsigned int nx, unsigned int ny, double** ppdView, double** ppdDet)
+{
+ double xMin = -m_phmLen / 2;
+ double xMax = xMin + m_phmLen;
+ double yMin = -m_phmLen / 2;
+ double yMax = yMin + m_phmLen;
+
+ double xInc = (xMax - xMin) / nx; // size of cells
+ double yInc = (yMax - yMin) / ny;
+
+ int iDetCenter = (m_nDet - 1) / 2; // index refering to L=0 projection
+
+ if (m_geometry != Scanner::GEOMETRY_PARALLEL) {
+ sys_error (ERR_WARNING, "convertPolar supports Parallel only");
+ return;
+ }
+
+ // Calculates polar coordinates (view#, det#) for each point on phantom grid
+ double x = xMin + xInc / 2; // Rectang coords of center of pixel
+ for (unsigned int ix = 0; ix < nx; x += xInc, ix++) {
+ double y = yMin + yInc / 2;
+ for (unsigned int iy = 0; iy < ny; y += yInc, iy++) {
+ double r = ::sqrt (x * x + y * y);
+ double phi = atan2 (y, x);
+
+ if (phi >= PI) {
+ phi -= PI;
+ } else if (phi < 0) {
+ phi += PI;
+ } else
+ r = -r;
+
+ ppdView[ix][iy] = (phi - m_rotStart) / m_rotInc;
+ ppdDet[ix][iy] = (r / m_detInc) + iDetCenter;
+ }
+ }