cosmotool/sample/gadgetToArray.cpp
2014-05-20 16:53:51 +02:00

58 lines
1.2 KiB
C++

#include <cmath>
#include <iostream>
#include <cstdlib>
#include "cic.hpp"
#include "loadGadget.hpp"
#include "miniargs.hpp"
#include <H5Cpp.h>
#include "hdf5_array.hpp"
using namespace CosmoTool;
using namespace std;
int main(int argc, char **argv)
{
typedef boost::multi_array<float, 2> array_type;
uint32_t res;
char *fname;
int id;
MiniArgDesc desc[] = {
{ "SNAPSHOT", &fname, MINIARG_STRING },
{ 0, 0, MINIARG_NULL }
};
if (!parseMiniArgs(argc, argv, desc))
return 1;
H5::H5File f("density.h5", H5F_ACC_TRUNC);
SimuData *p = loadGadgetMulti(fname, 0, 0);
double L0 = p->BoxSize/1000;
array_type parts(boost::extents[p->TotalNumPart][6]);
uint64_t q = 0;
try {
for (int cpuid=0;;cpuid++) {
p = loadGadgetMulti(fname, cpuid, NEED_POSITION|NEED_VELOCITY);
for (uint32_t i = 0; i < p->NumPart; i++)
{
parts[q][0] = p->Pos[0][i]/1000;
parts[q][1] = p->Pos[1][i]/1000;
parts[q][2] = p->Pos[2][i]/1000;
parts[q][3] = p->Vel[0][i];
parts[q][4] = p->Vel[1][i];
parts[q][5] = p->Vel[2][i];
q++;
}
delete p;
}
} catch (const NoSuchFileException& e) {}
hdf5_write_array(f, "particles", parts);
return 0;
}