source: Sophya/trunk/Cosmo/SimLSS/genefluct3d.h@ 3191

Last change on this file since 3191 was 3157, checked in by cmv, 19 years ago

intro du facteur de croissance dans la simul cmv 25/01/2007
File size: 4.2 KB
Line 
1#ifndef GENEFLUCT3D_SEEN
2#define GENEFLUCT3D_SEEN
3
4#include "machdefs.h"
5#include "genericfunc.h"
6#include "tarray.h"
7#include "histerr.h"
8#include "hist2err.h"
9#include "perandom.h"
10
11#include "FFTW/fftw3.h"
12#include "FitsIO/fitsio.h"
13
14#include <vector>
15
16#include "cosmocalc.h"
17#include "pkspectrum.h"
18
19
20namespace SOPHYA {
21
22//-----------------------------------------------------------------------------------
23class GeneFluct3D {
24public:
25 GeneFluct3D(TArray< complex<r_8 > >& T);
26 virtual ~GeneFluct3D(void);
27
28 void SetNThread(unsigned short nthread=0) {nthread_ = nthread;}
29 void SetSize(long nx,long ny,long nz,double dx,double dy,double dz); // Mpc
30 void SetObservator(double redshref=0.,double kredshref=0.);
31 void SetCosmology(CosmoCalc& cosmo);
32 void SetGrowthFactor(GrowthFactor& growth);
33 long LosComRedshift(double zinc=0.001);
34
35 TArray< complex<r_8> >& GetComplexArray(void) {return T_;}
36 fftw_complex* GetComplexPointer(void) {return fdata_;}
37 TArray<r_8>& GetRealArray(void) {return R_;}
38 r_8* GetRealPointer(void) {return data_;}
39
40 // Pour adressage data_[ip]
41 inline int_8 IndexR(long i,long j,long k) {return (int_8)(k+NTz_*(j+Ny_*i));}
42 // Pour adressage fdata_[ip][0-1]
43 inline int_8 IndexC(long i,long j,long k) {return (int_8)(k+NCz_*(j+Ny_*i));}
44 // - On peut aussi adresser:
45 // TArray< complex<r_8> >& pk = gf3d.GetComplexArray(); pk(i,j,k) = ...;
46 // TArray<r_8>& rgen = gf3d.GetRealArray(); rgen(i,j,k) = ...;
47
48 vector<long> GetNpix(void) {return N_;}
49 int_8 NPix(void) {return NRtot_;}
50
51 vector<r_8> GetDinc(void) {return D_;}
52 double GetDVol(void) {return dVol_;}
53 double GetVol(void) {return Vol_;}
54
55 vector<r_8> GetKinc(void) {return Dk_;}
56 vector<r_8> GetKnyq(void) {return Knyq_;}
57 double GetKmax(void) {return sqrt(Knyqx_*Knyqx_+Knyqy_*Knyqy_+Knyqz_*Knyqz_);}
58 double GetKTmax(void) {return sqrt(Knyqx_*Knyqx_+Knyqy_*Knyqy_);}
59 double GetKincMin(void)
60 {vector<r_8>::const_iterator it = min_element(Dk_.begin(), Dk_.end()); return *it;}
61 double GetKTincMin(void) {return min(Dk_[0],Dk_[1]);}
62
63 void ComputeFourier0(GenericFunc& pk_at_z);
64 void ComputeFourier(GenericFunc& pk_at_z);
65 void FilterByPixel(void);
66
67 void ComputeReal(void);
68
69 void ReComputeFourier(void);
70
71 int ComputeSpectrum(HistoErr& herr);
72 int ComputeSpectrum2D(Histo2DErr& herr);
73 void ApplyGrowthFactor(long npoints=-1);
74
75 int_8 VarianceFrReal(double R,double& var);
76 int_8 MeanSigma2(double& rm,double& rs2,double vmin=-1.e+150,double vmax=1.e+150);
77 int_8 NumberOfBad(double vmin=-1.e+150,double vmax=1.e+150);
78 int_8 SetToVal(double vmin, double vmax,double val0=0.);
79
80 void TurnFluct2Mass(void);
81 double TurnMass2MeanNumber(double n_by_mpc3);
82 double ApplyPoisson(void);
83 double TurnNGal2Mass(FunRan& massdist,bool axeslog=false);
84 double TurnMass2Flux(void);
85 void AddNoise2Real(double snoise);
86
87 void WriteFits(string cfname,int bitpix=FLOAT_IMG);
88 void ReadFits(string cfname);
89
90 void WritePPF(string cfname,bool write_real=true);
91 void ReadPPF(string cfname);
92
93 void SetPrtLevel(int lp=0) {lp_ = lp;}
94 void Print(void);
95
96protected:
97 void setsize(long nx,long ny,long nz,double dx,double dy,double dz);
98 void setalloc(void);
99 void setpointers(bool from_real);
100 void init_fftw(void);
101 long manage_coefficients(void);
102 double compute_power_carte(void);
103 void check_array_alloc(void);
104 inline double pixelfilter(double x)
105 {return (x<0.025) ? 1.-x*x/6.*(1.-x*x/20.): sin(x)/x;}
106
107 // valeurs dans l'espace reel
108 long Nx_,Ny_,Nz_; vector<long> N_;
109 long NCz_,NTz_;
110 int_8 NRtot_;
111
112 double Dx_,Dy_,Dz_; vector<double> D_;
113
114 // valeurs dans l'espace des K
115 double Dkx_,Dky_,Dkz_; vector<double> Dk_;
116 double Knyqx_,Knyqy_,Knyqz_; vector<double> Knyq_;
117 double Dk3_;
118 double dVol_, Vol_;
119
120 // la gestion de la FFT
121 fftw_plan pf_,pb_;
122 unsigned short nthread_;
123 int lp_;
124
125 // le stockage du Cube de donnees et les pointeurs
126 bool array_allocated_; // true if array has been allocated
127 TArray< complex<r_8> >& T_;
128 fftw_complex *fdata_;
129 TArray<r_8> R_;
130 double *data_;
131
132 // l'observateur
133 double redshref_,kredshref_;
134 CosmoCalc *cosmo_;
135 GrowthFactor *growth_;
136 double xobs_[3];
137 double loscom_ref_, loscom_min_, loscom_max_;
138 vector<double> zred_, loscom_;
139};
140
141} // Fin du namespace
142
143#endif
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