syn_alm_cxx_module.cc
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00032 #include "xcomplex.h"
00033 #include "paramfile.h"
00034 #include "planck_rng.h"
00035 #include "alm.h"
00036 #include "alm_fitsio.h"
00037 #include "powspec.h"
00038 #include "powspec_fitsio.h"
00039 #include "alm_powspec_tools.h"
00040 #include "fitshandle.h"
00041 #include "levels_facilities.h"
00042 #include "lsconstants.h"
00043 #include "announce.h"
00044
00045 using namespace std;
00046
00047 namespace {
00048
00049 template<typename T> void syn_alm_cxx (paramfile ¶ms)
00050 {
00051 int nlmax = params.template find<int>("nlmax");
00052 int nmmax = params.template find<int>("nmmax",nlmax);
00053 planck_assert(nmmax<=nlmax,"nmmax must not be larger than nlmax");
00054 string infile = params.template find<string>("infile");
00055 string outfile = params.template find<string>("outfile");
00056 int rand_seed = params.template find<int>("rand_seed");
00057 double fwhm = arcmin2rad*params.template find<double>("fwhm_arcmin",0.);
00058 bool polarisation = params.template find<bool>("polarisation");
00059
00060 PowSpec powspec;
00061 int nspecs = polarisation ? 4 : 1;
00062 read_powspec_from_fits (infile, powspec, nspecs, nlmax);
00063 powspec.smoothWithGauss(fwhm);
00064
00065 planck_rng rng(rand_seed);
00066
00067 if (polarisation)
00068 {
00069 Alm<xcomplex<T> >
00070 almT(nlmax,nmmax), almG(nlmax,nmmax), almC(nlmax,nmmax);
00071 create_alm_pol (powspec, almT, almG, almC, rng);
00072 write_Alm_to_fits(outfile,almT,almG,almC,nlmax,nmmax,planckType<T>());
00073 }
00074 else
00075 {
00076 Alm<xcomplex<T> > almT(nlmax,nmmax);
00077 create_alm (powspec, almT, rng);
00078 write_Alm_to_fits(outfile,almT,nlmax,nmmax,planckType<T>());
00079 }
00080 }
00081
00082 }
00083
00084 int syn_alm_cxx_module (int argc, const char **argv)
00085 {
00086 module_startup ("syn_alm_cxx", argc, argv);
00087 paramfile params (getParamsFromCmdline(argc,argv));
00088
00089 bool dp = params.find<bool> ("double_precision",false);
00090 dp ? syn_alm_cxx<double>(params) : syn_alm_cxx<float>(params);
00091 return 0;
00092 }