Geant4 Cross Reference |
1 /* 1 2 # <<BEGIN-copyright>> 3 # <<END-copyright>> 4 */ 5 #include <stdlib.h> 6 #include <cmath> 7 8 #include "MCGIDI.h" 9 10 #if defined __cplusplus 11 #include "G4Log.hh" 12 #include "G4Pow.hh" 13 namespace GIDI { 14 using namespace GIDI; 15 #endif 16 17 /* 18 ********************************************** 19 */ 20 int MCGIDI_sampling_pdfsOfXGivenW_initialize( 21 22 memset( dists, 0, sizeof( MCGIDI_pdfsOfXGi 23 return( 0 ); 24 } 25 /* 26 ********************************************** 27 */ 28 int MCGIDI_sampling_pdfsOfXGivenW_release( sta 29 30 int i; 31 32 for( i = 0; i < dists->numberOfWs; i++ ) M 33 smr_freeMemory( (void **) &(dists->Ws) ); 34 smr_freeMemory( (void **) &(dists->dist) ) 35 MCGIDI_sampling_pdfsOfXGivenW_initialize( 36 return( 0 ); 37 } 38 /* 39 ********************************************** 40 */ 41 int MCGIDI_sampling_pdfsOfX_release( statusMes 42 43 smr_freeMemory( (void **) &(dist->Xs) ); 44 return( 0 ); 45 } 46 /* 47 ********************************************** 48 */ 49 int MCGIDI_sampling_sampleX_from_pdfsOfXGivenW 50 51 int iW, iX1; 52 53 sampled->interpolationWY = dists->interpol 54 sampled->interpolationXY = dists->interpol 55 iW = sampled->iW = MCGIDI_misc_binarySearc 56 sampled->frac = 1; 57 58 if( iW == -2 ) { /* w < first v 59 return( MCGIDI_sampling_sampleX_from_p 60 else if( iW == -1 ) { /* w > last va 61 return( MCGIDI_sampling_sampleX_from_p 62 else { 63 if( MCGIDI_sampling_sampleX_from_pdfOf 64 if( dists->interpolationWY != ptwXY_in 65 double xSampled = sampled->x, frac 66 67 iX1 = sampled->iX1; 68 if( MCGIDI_sampling_sampleX_from_p 69 70 if( dists->interpolationWY == ptwX 71 frac = ( dists->Ws[iW+1] - sam 72 sampled->x = frac * xSampled + 73 else if( dists->interpolationWY == 74 frac = G4Log( dists->Ws[iW+1] 75 sampled->x = frac * xSampled + 76 else if( dists->interpolationWY == 77 frac = ( dists->Ws[iW+1] - sam 78 sampled->x = xSampled * G4Pow: 79 else if( dists->interpolationWY == 80 frac = G4Log( dists->Ws[iW+1] 81 sampled->x = xSampled * G4Pow: 82 else { // This should never happe 83 smr_setReportError2( sampled-> 84 return( 1 ); 85 } 86 87 sampled->iX2 = sampled->iX1; 88 sampled->iX1 = iX1; 89 sampled->frac = frac; 90 } 91 } 92 93 return( 0 ); 94 } 95 /* 96 ********************************************** 97 */ 98 int MCGIDI_sampling_sampleX_from_pdfOfX( MCGID 99 100 int iX; 101 double d1, d2, frac; 102 103 iX = sampled->iX1 = MCGIDI_misc_binarySear 104 105 if( iX < 0 ) { /* This sho 106 smr_setReportError2( sampled->smr, smr 107 sampled->x = dist->Xs[0]; 108 return( 1 ); 109 } 110 if( sampled->interpolationXY == ptwXY_inte 111 frac = ( dist->cdf[iX+1] - rngValue ) 112 sampled->x = frac * dist->Xs[iX] + ( 1 113 else { 114 double s1 = dist->pdf[iX+1] - dist->pd 115 116 if( s1 == 0. ) { 117 if( dist->pdf[iX] == 0 ) { 118 sampled->x = dist->Xs[iX]; 119 if( iX == 0 ) sampled->x = dis 120 else { 121 frac = ( dist->cdf[iX+1] - rng 122 sampled->x = frac * dist->Xs[i 123 } } 124 else { 125 s1 = s1 / ( dist->Xs[iX+1] - dist- 126 d1 = rngValue - dist->cdf[iX]; 127 d2 = dist->cdf[iX+1] - rngValue; 128 if( d2 > d1 ) { /* Closer to i 129 sampled->x = dist->Xs[iX] + ( 130 else { /* Closer to i 131 sampled->x = dist->Xs[iX+1] - 132 } 133 } 134 } 135 136 return( 0 ); 137 } 138 /* 139 ********************************************** 140 */ 141 int MCGIDI_sampling_doubleDistribution( status 142 MCGIDI_quantitiesLookupModes &modes, M 143 144 int iV; 145 double e_in = modes.getProjectileEnergy( ) 146 double randomW = decaySamplingInfo->rng( d 147 MCGIDI_pdfsOfXGivenW_sampled sampledX, sam 148 ptwXY_interpolation interpolationWY = pdfO 149 150 sampledX.smr = smr; 151 sampledW.smr = smr; 152 sampledW.interpolationXY = pdfOfWGivenV->i 153 iV = MCGIDI_misc_binarySearch( pdfOfWGiven 154 if( iV < 0 ) { 155 interpolationWY = ptwXY_interpolationF 156 if( iV == -2 ) { 157 iV = 0; } 158 else { 159 iV = pdfOfWGivenV->numberOfWs - 1; 160 } 161 e_in = pdfOfWGivenV->Ws[iV]; 162 } 163 164 MCGIDI_sampling_sampleX_from_pdfOfX( &(pdf 165 sampledX.w = sampledW.x; 166 MCGIDI_sampling_sampleX_from_pdfsOfXGivenW 167 168 if( interpolationWY != ptwXY_interpolation 169 double x = sampledX.x, w = sampledW.x, 170 171 MCGIDI_sampling_sampleX_from_pdfOfX( & 172 sampledX.w = sampledW.x; 173 MCGIDI_sampling_sampleX_from_pdfsOfXGi 174 175 MCGIDI_sampling_interpolationValues( s 176 MCGIDI_sampling_interpolationValues( s 177 } 178 179 decaySamplingInfo->mu = sampledW.x; 180 decaySamplingInfo->Ep = sampledX.x; 181 182 return( 0 ); 183 } 184 /* 185 ********************************************** 186 */ 187 int MCGIDI_sampling_interpolationValues( statu 188 189 double frac; 190 191 if( interpolation == ptwXY_interpolationLi 192 frac = ( ws[2] - ws[0] ) / ( ws[2] - w 193 *y = frac * y1 + ( 1 - frac ) * y2; } 194 else if( interpolation == ptwXY_interpolat 195 frac = G4Log( ws[2] / ws[0] ) / G4Log( 196 *y = frac * y1 + ( 1 - frac ) * y2; } 197 else if( interpolation == ptwXY_interpolat 198 frac = ( ws[2] - ws[0] ) / ( ws[2] - w 199 *y = y1 * G4Pow::GetInstance()->powA( 200 else if( interpolation == ptwXY_interpolat 201 frac = G4Log( ws[2] / ws[0] ) / G4Log( 202 *y = y2 * G4Pow::GetInstance()->powA( 203 else { // This should never happen. 204 smr_setReportError2( smr, smr_unknownI 205 return( 1 ); 206 } 207 return( 0 ); 208 } 209 /* 210 ********************************************** 211 */ 212 double MCGIDI_sampling_ptwXY_getValueAtX( ptwX 213 214 double y1; 215 216 if( ptwXY_getValueAtX( ptwXY, x1, &y1 ) == 217 if( x1 < ptwXY_getXMin( ptwXY ) ) { 218 ptwXY_getValueAtX( ptwXY, ptwXY_ge 219 else { 220 ptwXY_getValueAtX( ptwXY, ptwXY_ge 221 } 222 } 223 return( y1 ); 224 } 225 226 #if defined __cplusplus 227 } 228 #endif 229 230