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25 // 25 //
26 // G4PhysicsVector class implementation <<
27 // 26 //
28 // Authors: << 27 // $Id: G4PhysicsVector.cc,v 1.27 2008/10/16 12:14:36 gcosmo Exp $
29 // - 02 Dec. 1995, G.Cosmo: Structure created << 28 // GEANT4 tag $Name: geant4-09-02 $
30 // - 03 Mar. 1996, K.Amako: Implemented the 1s << 29 //
31 // Revisions: << 30 //
32 // - 11 Nov. 2000, H.Kurashige: Use STL vector << 31 // --------------------------------------------------------------
33 // ------------------------------------------- << 32 // GEANT 4 class implementation file
>> 33 //
>> 34 // G4PhysicsVector.cc
>> 35 //
>> 36 // History:
>> 37 // 02 Dec. 1995, G.Cosmo : Structure created based on object model
>> 38 // 03 Mar. 1996, K.Amako : Implemented the 1st version
>> 39 // 01 Jul. 1996, K.Amako : Hidden bin from the user introduced
>> 40 // 12 Nov. 1998, K.Amako : A bug in GetVectorLength() fixed
>> 41 // 11 Nov. 2000, H.Kurashige : use STL vector for dataVector and binVector
>> 42 // 18 Jan. 2001, H.Kurashige : removed ptrNextTable
>> 43 // 09 Mar. 2001, H.Kurashige : added G4PhysicsVector type
>> 44 // 05 Sep. 2008, V.Ivanchenko : added protections for zero-length vector
>> 45 // --------------------------------------------------------------
34 46
35 #include "G4PhysicsVector.hh" 47 #include "G4PhysicsVector.hh"
36 #include <iomanip> 48 #include <iomanip>
37 49
38 // ------------------------------------------- 50 // --------------------------------------------------------------
39 G4PhysicsVector::G4PhysicsVector(G4bool val) << 51
40 : useSpline(val) << 52 G4PhysicsVector::G4PhysicsVector(G4bool spline)
>> 53 : type(T_G4PhysicsVector),
>> 54 edgeMin(0.), edgeMax(0.), numberOfBin(0),
>> 55 lastEnergy(0.), lastValue(0.), lastBin(0),
>> 56 secDerivative(0), useSpline(spline)
41 {} 57 {}
42 58
43 // ------------------------------------------- << 59 // --------------------------------------------------------------
44 void G4PhysicsVector::Initialise() << 60
>> 61 G4PhysicsVector::~G4PhysicsVector()
>> 62 {
>> 63 DeleteData();
>> 64 }
>> 65
>> 66 // --------------------------------------------------------------
>> 67
>> 68 G4PhysicsVector::G4PhysicsVector(const G4PhysicsVector& right)
>> 69 {
>> 70 CopyData(right);
>> 71 }
>> 72
>> 73 // --------------------------------------------------------------
>> 74
>> 75 G4PhysicsVector& G4PhysicsVector::operator=(const G4PhysicsVector& right)
45 { 76 {
46 if (1 < numberOfNodes) << 77 if (&right==this) { return *this; }
>> 78 if (type != right.type) { return *this; }
>> 79
>> 80 DeleteData();
>> 81 CopyData(right);
>> 82
>> 83 return *this;
>> 84 }
>> 85
>> 86 // --------------------------------------------------------------
>> 87
>> 88 G4int G4PhysicsVector::operator==(const G4PhysicsVector &right) const
>> 89 {
>> 90 return (this == &right);
>> 91 }
>> 92
>> 93 // --------------------------------------------------------------
>> 94
>> 95 G4int G4PhysicsVector::operator!=(const G4PhysicsVector &right) const
>> 96 {
>> 97 return (this != &right);
>> 98 }
>> 99
>> 100 // --------------------------------------------------------------
>> 101
>> 102 void G4PhysicsVector::DeleteData()
>> 103 {
>> 104 delete [] secDerivative;
>> 105 secDerivative = 0;
>> 106 }
>> 107
>> 108 // --------------------------------------------------------------
>> 109
>> 110 void G4PhysicsVector::CopyData(const G4PhysicsVector& vec)
>> 111 {
>> 112 type = vec.type;
>> 113 edgeMin = vec.edgeMin;
>> 114 edgeMax = vec.edgeMax;
>> 115 numberOfBin = vec.numberOfBin;
>> 116 lastEnergy = vec.lastEnergy;
>> 117 lastValue = vec.lastValue;
>> 118 lastBin = vec.lastBin;
>> 119 dataVector = vec.dataVector;
>> 120 binVector = vec.binVector;
>> 121 useSpline = vec.useSpline;
>> 122 comment = vec.comment;
>> 123 if (vec.secDerivative)
47 { 124 {
48 idxmax = numberOfNodes - 2; << 125 secDerivative = new G4double [numberOfBin];
49 edgeMin = binVector[0]; << 126 for (size_t i=0; i<numberOfBin; i++)
50 edgeMax = binVector[idxmax + 1]; << 127 {
>> 128 secDerivative[i] = vec.secDerivative[i];
>> 129 }
>> 130 }
>> 131 else
>> 132 {
>> 133 secDerivative = 0;
51 } 134 }
52 } 135 }
53 136
54 // ------------------------------------------- 137 // --------------------------------------------------------------
55 G4bool G4PhysicsVector::Store(std::ofstream& f << 138
>> 139 G4double G4PhysicsVector::GetLowEdgeEnergy(size_t binNumber) const
>> 140 {
>> 141 return binVector[binNumber];
>> 142 }
>> 143
>> 144 // --------------------------------------------------------------
>> 145
>> 146 G4bool G4PhysicsVector::Store(std::ofstream& fOut, G4bool ascii)
56 { 147 {
57 // Ascii mode 148 // Ascii mode
58 if (ascii) 149 if (ascii)
59 { 150 {
60 fOut << *this; 151 fOut << *this;
61 return true; 152 return true;
62 } << 153 }
63 // Binary Mode 154 // Binary Mode
64 155
65 // binning 156 // binning
66 fOut.write((char*) (&edgeMin), sizeof edgeMi << 157 fOut.write((char*)(&edgeMin), sizeof edgeMin);
67 fOut.write((char*) (&edgeMax), sizeof edgeMa << 158 fOut.write((char*)(&edgeMax), sizeof edgeMax);
68 fOut.write((char*) (&numberOfNodes), sizeof << 159 fOut.write((char*)(&numberOfBin), sizeof numberOfBin);
69 160
70 // contents 161 // contents
71 std::size_t size = dataVector.size(); << 162 size_t size = dataVector.size();
72 fOut.write((char*) (&size), sizeof size); << 163 fOut.write((char*)(&size), sizeof size);
73 164
74 auto value = new G4double[2 * size]; << 165 G4double* value = new G4double[2*size];
75 for (std::size_t i = 0; i < size; ++i) << 166 for(size_t i = 0; i < size; i++)
76 { 167 {
77 value[2 * i] = binVector[i]; << 168 value[2*i] = binVector[i];
78 value[2 * i + 1] = dataVector[i]; << 169 value[2*i+1]= dataVector[i];
79 } 170 }
80 fOut.write((char*) (value), 2 * size * (size << 171 fOut.write((char*)(value), 2*size*(sizeof (G4double)));
81 delete[] value; << 172 delete [] value;
82 173
83 return true; 174 return true;
84 } 175 }
85 176
86 // ------------------------------------------- 177 // --------------------------------------------------------------
>> 178
87 G4bool G4PhysicsVector::Retrieve(std::ifstream 179 G4bool G4PhysicsVector::Retrieve(std::ifstream& fIn, G4bool ascii)
88 { 180 {
89 // clear properties; 181 // clear properties;
>> 182 lastEnergy=0.;
>> 183 lastValue =0.;
>> 184 lastBin =0;
90 dataVector.clear(); 185 dataVector.clear();
91 binVector.clear(); 186 binVector.clear();
92 secDerivative.clear(); << 187 comment = "";
93 188
94 // retrieve in ascii mode 189 // retrieve in ascii mode
95 if (ascii) 190 if (ascii)
96 { 191 {
97 // binning 192 // binning
98 fIn >> edgeMin >> edgeMax >> numberOfNodes << 193 fIn >> edgeMin >> edgeMax >> numberOfBin;
99 if (fIn.fail() || numberOfNodes < 2) << 194 if (fIn.fail()) { return false; }
100 { <<
101 return false; <<
102 } <<
103 // contents 195 // contents
104 G4int siz0 = 0; << 196 size_t size=0;
105 fIn >> siz0; << 197 fIn >> size;
106 if (siz0 < 2) { return false; } << 198 if (fIn.fail()) { return false; }
107 auto siz = static_cast<std::size_t>(siz0); <<
108 if (fIn.fail() || siz != numberOfNodes) <<
109 { <<
110 return false; <<
111 } <<
112 199
113 binVector.reserve(siz); << 200 binVector.reserve(size);
114 dataVector.reserve(siz); << 201 dataVector.reserve(size);
115 G4double vBin, vData; 202 G4double vBin, vData;
116 203
117 for (std::size_t i = 0; i < siz; ++i) << 204 for(size_t i = 0; i < size ; i++)
118 { 205 {
119 vBin = 0.; << 206 vBin = 0.;
120 vData = 0.; << 207 vData= 0.;
121 fIn >> vBin >> vData; 208 fIn >> vBin >> vData;
122 if (fIn.fail()) << 209 if (fIn.fail()) { return false; }
123 { <<
124 return false; <<
125 } <<
126 binVector.push_back(vBin); 210 binVector.push_back(vBin);
127 dataVector.push_back(vData); 211 dataVector.push_back(vData);
128 } 212 }
129 Initialise(); << 213 return true ;
130 return true; <<
131 } 214 }
132 215
133 // retrieve in binary mode 216 // retrieve in binary mode
134 // binning 217 // binning
135 fIn.read((char*) (&edgeMin), sizeof edgeMin) << 218 fIn.read((char*)(&edgeMin), sizeof edgeMin);
136 fIn.read((char*) (&edgeMax), sizeof edgeMax) << 219 fIn.read((char*)(&edgeMax), sizeof edgeMax);
137 fIn.read((char*) (&numberOfNodes), sizeof nu << 220 fIn.read((char*)(&numberOfBin), sizeof numberOfBin );
138 << 221
139 // contents 222 // contents
140 std::size_t size; << 223 size_t size;
141 fIn.read((char*) (&size), sizeof size); << 224 fIn.read((char*)(&size), sizeof size);
142 << 225
143 auto value = new G4double[2 * size]; << 226 G4double* value = new G4double[2*size];
144 fIn.read((char*) (value), 2 * size * (sizeof << 227 fIn.read((char*)(value), 2*size*(sizeof(G4double)) );
145 if (static_cast<G4int>(fIn.gcount()) != stat << 228 if (G4int(fIn.gcount()) != G4int(2*size*(sizeof(G4double))) )
146 { 229 {
147 delete[] value; << 230 delete [] value;
148 return false; 231 return false;
149 } 232 }
150 233
151 binVector.reserve(size); 234 binVector.reserve(size);
152 dataVector.reserve(size); 235 dataVector.reserve(size);
153 for (std::size_t i = 0; i < size; ++i) << 236 for(size_t i = 0; i < size; i++)
154 { 237 {
155 binVector.push_back(value[2 * i]); << 238 binVector.push_back(value[2*i]);
156 dataVector.push_back(value[2 * i + 1]); << 239 dataVector.push_back(value[2*i+1]);
157 } 240 }
158 delete[] value; << 241 delete [] value;
159 <<
160 Initialise(); <<
161 return true; 242 return true;
162 } 243 }
163 244
164 // ------------------------------------------- 245 // --------------------------------------------------------------
165 void G4PhysicsVector::DumpValues(G4double unit <<
166 { <<
167 for (std::size_t i = 0; i < numberOfNodes; + <<
168 { <<
169 G4cout << binVector[i] / unitE << " " << <<
170 << G4endl; <<
171 } <<
172 } <<
173 246
174 // ------------------------------------------- << 247 void G4PhysicsVector::FillSecondDerivatives()
175 std::size_t G4PhysicsVector::FindBin(const G4d << 248 {
176 std::size << 249 secDerivative = new G4double [numberOfBin];
177 { <<
178 if (idx + 1 < numberOfNodes && <<
179 energy >= binVector[idx] && energy <= bi <<
180 { <<
181 return idx; <<
182 } <<
183 if (energy <= binVector[1]) <<
184 { <<
185 return 0; <<
186 } <<
187 if (energy >= binVector[idxmax]) <<
188 { <<
189 return idxmax; <<
190 } <<
191 return GetBin(energy); <<
192 } <<
193 250
194 // ------------------------------------------- << 251 size_t n = numberOfBin-1;
195 void G4PhysicsVector::ScaleVector(const G4doub <<
196 const G4doub <<
197 { <<
198 for (std::size_t i = 0; i < numberOfNodes; + <<
199 { <<
200 binVector[i] *= factorE; <<
201 dataVector[i] *= factorV; <<
202 } <<
203 Initialise(); <<
204 } <<
205 252
206 // ------------------------------------------- << 253 // cannot compute derivatives for less than 3 points
207 void G4PhysicsVector::FillSecondDerivatives(co << 254 if(3 > numberOfBin)
208 const G4double dir1, <<
209 const G4double dir2) <<
210 { <<
211 if (!useSpline) { return; } <<
212 // cannot compute derivatives for less than <<
213 const std::size_t nmin = (stype == G4SplineT <<
214 if (nmin > numberOfNodes) <<
215 { 255 {
216 if (0 < verboseLevel) << 256 secDerivative[0] = 0.0;
217 { << 257 secDerivative[n] = 0.0;
218 G4cout << "### G4PhysicsVector: spline c <<
219 << numberOfNodes << " points - spline d <<
220 << G4endl; <<
221 DumpValues(); <<
222 } <<
223 useSpline = false; <<
224 return; 258 return;
225 } 259 }
226 // check energies of free vector <<
227 if (type == T_G4PhysicsFreeVector) <<
228 { <<
229 for (std::size_t i=0; i<=idxmax; ++i) <<
230 { <<
231 if (binVector[i + 1] <= binVector[i]) <<
232 { <<
233 if (0 < verboseLevel) <<
234 { <<
235 G4cout << "### G4PhysicsVector: spline can <<
236 << " E[" << i << "]=" << binVector[i] <<
237 << " >= E[" << i+1 << "]=" << binVector[i <<
238 << G4endl; <<
239 DumpValues(); <<
240 } <<
241 useSpline = false; <<
242 return; <<
243 } <<
244 } <<
245 } <<
246 <<
247 // spline is possible <<
248 Initialise(); <<
249 secDerivative.resize(numberOfNodes); <<
250 260
251 if (1 < verboseLevel) << 261 for(size_t i=1; i<n; i++)
252 { 262 {
253 G4cout << "### G4PhysicsVector:: FillSecon << 263 secDerivative[i] =
254 << numberOfNodes << G4endl; << 264 3.0*((dataVector[i+1]-dataVector[i])/(binVector[i+1]-binVector[i]) -
255 DumpValues(); << 265 (dataVector[i]-dataVector[i-1])/(binVector[i]-binVector[i-1]))
>> 266 /(binVector[i+1]-binVector[i-1]);
256 } 267 }
257 << 268 secDerivative[n] = secDerivative[n-1];
258 switch(stype) <<
259 { <<
260 case G4SplineType::Base: <<
261 ComputeSecDerivative1(); <<
262 break; <<
263 <<
264 case G4SplineType::FixedEdges: <<
265 ComputeSecDerivative2(dir1, dir2); <<
266 break; <<
267 <<
268 default: <<
269 ComputeSecDerivative0(); <<
270 } <<
271 } <<
272 <<
273 // ------------------------------------------- <<
274 void G4PhysicsVector::ComputeSecDerivative0() <<
275 // A simplified method of computation of seco <<
276 { <<
277 std::size_t n = numberOfNodes - 1; <<
278 <<
279 for (std::size_t i = 1; i < n; ++i) <<
280 { <<
281 secDerivative[i] = 3.0 * <<
282 ((dataVector[i + 1] - dataVector[i]) / ( <<
283 (dataVector[i] - dataVector[i - 1]) / <<
284 (binVector[i] - binVector[i - 1])) / <<
285 (binVector[i + 1] - binVector[i - 1]); <<
286 } <<
287 secDerivative[n] = secDerivative[n - 1]; <<
288 secDerivative[0] = secDerivative[1]; 269 secDerivative[0] = secDerivative[1];
289 } 270 }
290 << 271
291 // ------------------------------------------- <<
292 void G4PhysicsVector::ComputeSecDerivative1() <<
293 // Computation of second derivatives using "No <<
294 // B.I. Kvasov "Methods of shape-preserving sp <<
295 // World Scientific, 2000 <<
296 { <<
297 std::size_t n = numberOfNodes - 1; <<
298 auto u = new G4double[n]; <<
299 G4double p, sig; <<
300 <<
301 u[1] = ((dataVector[2] - dataVector[1]) / (b <<
302 (dataVector[1] - dataVector[0]) / (b <<
303 u[1] = 6.0 * u[1] * (binVector[2] - binVecto <<
304 ((binVector[2] - binVector[0]) * (bin <<
305 <<
306 // Decomposition loop for tridiagonal algori <<
307 // and u[i] are used for temporary storage o <<
308 <<
309 secDerivative[1] = (2.0 * binVector[1] - bin <<
310 (2.0 * binVector[2] - bin <<
311 <<
312 for(std::size_t i = 2; i < n - 1; ++i) <<
313 { <<
314 sig = <<
315 (binVector[i] - binVector[i - 1]) / (bin <<
316 p = sig * secDerivative[i - <<
317 secDerivative[i] = (sig - 1.0) / p; <<
318 u[i] = <<
319 (dataVector[i + 1] - dataVector[i]) / (b <<
320 (dataVector[i] - dataVector[i - 1]) / (b <<
321 u[i] = <<
322 (6.0 * u[i] / (binVector[i + 1] - binVec <<
323 } <<
324 <<
325 sig = <<
326 (binVector[n - 1] - binVector[n - 2]) / (b <<
327 p = sig * secDerivative[n - 3] + 2.0; <<
328 u[n - 1] = <<
329 (dataVector[n] - dataVector[n - 1]) / (bin <<
330 (dataVector[n - 1] - dataVector[n - 2]) / <<
331 (binVector[n - 1] - binVector[n - 2]); <<
332 u[n - 1] = 6.0 * sig * u[n - 1] / (binVector <<
333 (2.0 * sig - 1.0) * u[n - 2] / p; <<
334 <<
335 p = (1.0 + sig) + (2.0 * sig - 1.0) * secDer <<
336 secDerivative[n - 1] = u[n - 1] / p; <<
337 <<
338 // The back-substitution loop for the triago <<
339 // a linear system of equations. <<
340 <<
341 for (std::size_t k = n - 2; k > 1; --k) <<
342 { <<
343 secDerivative[k] *= <<
344 (secDerivative[k + 1] - u[k] * (binVecto <<
345 (binVector[k + <<
346 } <<
347 secDerivative[n] = <<
348 (secDerivative[n - 1] - (1.0 - sig) * secD <<
349 sig = 1.0 - ((binVector[2] - binVector[1]) / <<
350 secDerivative[1] *= (secDerivative[2] - u[1] <<
351 secDerivative[0] = (secDerivative[1] - sig * <<
352 <<
353 delete[] u; <<
354 } <<
355 <<
356 // ------------------------------------------- 272 // --------------------------------------------------------------
357 void G4PhysicsVector::ComputeSecDerivative2(G4 <<
358 G4 <<
359 // A standard method of computation of second <<
360 // First derivatives at the first and the last <<
361 // See for example W.H. Press et al. "Numerica <<
362 // Cambridge University Press, 1997. <<
363 { <<
364 std::size_t n = numberOfNodes - 1; <<
365 auto u = new G4double[n]; <<
366 G4double p, sig, un; <<
367 <<
368 u[0] = (6.0 / (binVector[1] - binVector[0])) <<
369 ((dataVector[1] - dataVector[0]) / (b <<
370 firstPointDerivative); <<
371 <<
372 secDerivative[0] = -0.5; <<
373 <<
374 // Decomposition loop for tridiagonal algori <<
375 // and u[i] are used for temporary storage o <<
376 <<
377 for (std::size_t i = 1; i < n; ++i) <<
378 { <<
379 sig = <<
380 (binVector[i] - binVector[i - 1]) / (bin <<
381 p = sig * (secDerivative[i <<
382 secDerivative[i] = (sig - 1.0) / p; <<
383 u[i] = <<
384 (dataVector[i + 1] - dataVector[i]) / (b <<
385 (dataVector[i] - dataVector[i - 1]) / (b <<
386 u[i] = <<
387 6.0 * u[i] / (binVector[i + 1] - binVect <<
388 } <<
389 <<
390 sig = <<
391 (binVector[n - 1] - binVector[n - 2]) / (b <<
392 p = sig * secDerivative[n - 2] + 2.0; <<
393 un = (6.0 / (binVector[n] - binVector[n - 1] <<
394 (endPointDerivative - (dataVector[n] <<
395 (binVector[n] <<
396 u[n - 1] / p; <<
397 secDerivative[n] = un / (secDerivative[n - 1 <<
398 <<
399 // The back-substitution loop for the triago <<
400 // a linear system of equations. <<
401 <<
402 for (std::size_t k = n - 1; k > 0; --k) <<
403 { <<
404 secDerivative[k] *= <<
405 (secDerivative[k + 1] - u[k] * (binVecto <<
406 (binVector[k + <<
407 } <<
408 secDerivative[0] = 0.5 * (u[0] - secDerivati <<
409 <<
410 delete[] u; <<
411 } <<
412 273
413 // ------------------------------------------- <<
414 std::ostream& operator<<(std::ostream& out, co 274 std::ostream& operator<<(std::ostream& out, const G4PhysicsVector& pv)
415 { 275 {
416 // binning 276 // binning
417 G4long prec = out.precision(); << 277 out << std::setprecision(12) << pv.edgeMin;
418 out << std::setprecision(12) << pv.edgeMin < << 278 out <<" " << pv.edgeMax <<" " << pv.numberOfBin << G4endl;
419 << pv.numberOfNodes << G4endl; <<
420 279
421 // contents 280 // contents
422 out << pv.dataVector.size() << G4endl; << 281 out << pv.dataVector.size() << G4endl;
423 for (std::size_t i = 0; i < pv.dataVector.si << 282 for(size_t i = 0; i < pv.dataVector.size(); i++)
424 { 283 {
425 out << pv.binVector[i] << " " << pv.dataV << 284 out << std::setprecision(12) << pv.binVector[i] << " "
>> 285 << pv.dataVector[i] << G4endl;
426 } 286 }
427 out.precision(prec); <<
428 <<
429 return out; 287 return out;
430 } 288 }
431 <<
432 //-------------------------------------------- <<
433 G4double G4PhysicsVector::GetEnergy(const G4do <<
434 { <<
435 if (0 == numberOfNodes) <<
436 { <<
437 return 0.0; <<
438 } <<
439 if (1 == numberOfNodes || val <= dataVector[ <<
440 { <<
441 return edgeMin; <<
442 } <<
443 if (val >= dataVector[numberOfNodes - 1]) <<
444 { <<
445 return edgeMax; <<
446 } <<
447 std::size_t bin = std::lower_bound(dataVecto <<
448 - dataVector.cbegin() - 1; <<
449 if (bin > idxmax) { bin = idxmax; } <<
450 G4double res = binVector[bin]; <<
451 G4double del = dataVector[bin + 1] - dataVec <<
452 if (del > 0.0) <<
453 { <<
454 res += (val - dataVector[bin]) * (binVecto <<
455 } <<
456 return res; <<
457 } <<
458 <<
459 //-------------------------------------------- <<
460 void G4PhysicsVector::PrintPutValueError(std:: <<
461 G4dou <<
462 const <<
463 { <<
464 G4ExceptionDescription ed; <<
465 ed << "Vector type: " << type << " length= " <<
466 << "; an attempt to put data at index= " <<
467 << " value= " << val << " in " << text; <<
468 G4Exception("G4PhysicsVector:", "gl0005", <<
469 FatalException, ed, "Wrong opera <<
470 } <<
471 <<
472 //-------------------------------------------- <<
473 289