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FOFReader.cpp
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/* ************************** FOFReaderLib ********************************** */
/*////////////////////////////////////////////////////////////////////////////*/
// PROJECT : FOFReaderLib
// TITLE : FOFReaderLib
// DESCRIPTION : Main FOFReaderLib example, try to read all formats
// AUTHOR(S) : Jean Pasdeloup ([email protected])
// CONTRIBUTIONS : [Jean Pasdeloup (2013)]
// LICENSE : CECILL-B License
/*////////////////////////////////////////////////////////////////////////////*/
/// \file FOFReaderLib.h
/// \brief Main FOFReaderLib example, try to read all formats
/// \author Jean Pasdeloup ([email protected])
/// \date 2013
/// \copyright CECILL-B License
/*////////////////////////////////////////////////////////////////////////////*/
#include "FOFReaderLib/FOFReaderLib.h"
using namespace std;
/*
* Usage sample
*/
int main(int argc, char** argv)
{
if (argc == 3) { // If correct number of args
switch (atoi(argv[2])) {
/*
* MULTI CUBE USAGE
*/
case 0:
{
cout << "Reading multicube " << argv[1] << endl;
int maxParticleToDisplay = 5;
int maxDetailCubeToDisplay = 2;
FOFMultiCube multi(argv[1], FOFParticles::DONT_READ_PARTICLES); // don't use default, don't read particles just header
//multi.divideNpart(8); // Reduce nb part by 8
//multi.npart(10000); // Force npart to 1000
for(int i=0; i<multi.nCubes(); i++) {
cout << "Cube " << i << ": "
<< multi.cubes(i)->npart() << " particles, "
<< "area: (" << multi.cubes(i)->minX() << "," << multi.cubes(i)->minY() << "," << multi.cubes(i)->minZ() << ") "
<< "to (" << multi.cubes(i)->maxX() << "," << multi.cubes(i)->maxY() << "," << multi.cubes(i)->maxZ() << ")"
<< endl;
if(i < maxDetailCubeToDisplay) {
multi.cubes(i)->readParticles(FOFParticles::READ_ALL); // Need to read particles
for(int j=0; j< min(maxParticleToDisplay,multi.cubes(i)->npart()); j++) {
cout << " Particle " << j << ": "
<< "id: " << multi.cubes(i)->id(j) << " "
<< "position: (" << multi.cubes(i)->posX(j) << "," << multi.cubes(i)->posY(j) << "," << multi.cubes(i)->posZ(j) << ") "
<< "velocity (" << multi.cubes(i)->velX(j) << "," << multi.cubes(i)->velY(j) << "," << multi.cubes(i)->velZ(j) << ")"
<< endl;
}
if(multi.cubes(i)->npart() > maxParticleToDisplay ) {
cout << " (...) " << endl;
}
multi.cubes(i)->releaseParticles(); // Now we can release to free memory
}
}
cout << "TOTAL " << multi.npart() << " particles, "
<< "area: (" << multi.minX() << "," << multi.minY() << "," << multi.minZ() << ") "
<< "to (" << multi.maxX() << "," << multi.maxY() << "," << multi.maxZ() << ")"
<< endl;
break;
}
/*
* STRUCT USAGE
*/
case 1:
{
cout << "Reading strct " << argv[1] << endl;
FOFStrct strct(argv[1], FOFParticles::DONT_READ_PARTICLES);
int maxHaloToDisplay = 5;
for(int i=0; i<min(maxHaloToDisplay,strct.nHalos()); i++) {
cout << "HALO " << i << ": "
<< strct.halos(i)->npart() << " particles"
<< endl;
if(i==0) {
strct.halos(i)->readParticles(FOFParticles::READ_ALL);
cout << "1st part of 1st halo: ID=" << strct.halos(i)->id(0)
<< " position: (" << strct.halos(i)->posX(0) << "," << strct.halos(i)->posY(0) << "," << strct.halos(i)->posZ(0) << ") "
<< endl;
}
}
cout << "TOTAL " << strct.nHalos() << " halos" << endl;
break;
}
/*
* MASST USAGE
*/
case 2:
{
cout << "Reading masst " << argv[1] << endl;
FOFMasst masst(argv[1]);
cout << "OK" << endl;
cout << "Read " << masst.nHalos() << endl;
int maxHaloToDisplay = 5;
for(int i=0; i<min(maxHaloToDisplay,masst.nHalos()); i++) {
cout << "HALO " << i << ": "
<< "id:" << masst.halos(i)->id() << " "
<< masst.halos(i)->mass() << " particles"
<< " center: (" << masst.halos(i)->x() << "," << masst.halos(i)->y() << "," << masst.halos(i)->z() << ") "
<< endl;
}
cout << "TOTAL " << masst.nHalos() << " halos" << endl;
break;
}
/*
* DEUS HALOS USAGE (masst + strct)
*/
case 3:
{
cout << "Reading Halo dir " << argv[1] << endl;
DEUSHalos simulation(argv[1]);
long long int maxHaloToDisplay = 5;
int randomHalo = 1; //1651288; //1651288;
for(int i=0; i<min(maxHaloToDisplay,simulation.nHalos()); i++) {
cout << " HALO " << i << ": "
<< simulation.halos(i)->mass() << " particles"
<< " center: ("
<< simulation.halos(i)->x() << ","
<< simulation.halos(i)->y() << ","
<< simulation.halos(i)->z() << ") "
<< endl;
}
cout << "TOTAL SIMULATION " << simulation.nFiles() << " files, " << simulation.nHalos() << " halos" << endl;
if(simulation.nHalos() >= randomHalo) {
cout << "SELECTED HALO : " << randomHalo << endl;
simulation.loadParticles(randomHalo, FOFParticles::READ_ALL);
FOFParticles *haloParticles = simulation.halos(randomHalo)->particles();
for(int j=0; j<haloParticles->npart(); j++) {
cout << " Particle " << j << ": "
<< "id: (" << haloParticles->id(j) << ") "
<< "position: (" << haloParticles->posX(j) << "," << haloParticles->posY(j) << "," << haloParticles->posZ(j) << ") "
<< "velocity (" << haloParticles->velX(j) << "," << haloParticles->velY(j) << "," << haloParticles->velZ(j) << ")"
<< endl;
}
float *haloVelocity = new float[3];
simulation.halos(randomHalo)->calculateAvgVelocity(haloVelocity);
cout << " Halo Velocity "
<< " (" << haloVelocity[0] << "," << haloVelocity[1] << "," << haloVelocity[2] << ")"
<< endl;
}
break;
}
/*
* CUBE GRAV USAGE
*/
case 4:
{
cout << "Reading cube grav " << argv[1] << endl;
FOFCubeGrav grav(argv[1]);
int levels = grav.availableLevels();
cout << "Cube Grav: "
<< levels << " levels, "
<< "area: (" << grav.minX() << "," << grav.minY() << "," << grav.minZ() << ") "
<< "to (" << grav.maxX() << "," << grav.maxY() << "," << grav.maxZ() << ")"
<< endl;
grav.readLevels(false);
for(int i=0; i<levels; i++) {
cout << " level " << i << ": "
<< grav.level(i)->nCells() << " cells"
<< endl;
int shown=0;
for(int j=0; j<grav.level(i)->nCells(); j++) {
if(1) { //grav.level(i)->son(j) > 0) {
cout << " " << j << "th cell of 1st level: " << endl
<< " position: (" << grav.level(i)->posX(j) << "," << grav.level(i)->posY(j) << "," << grav.level(i)->posZ(j) << ") " << endl
<< " force: (" << grav.level(i)->fX(j) << "," << grav.level(i)->fY(j) << "," << grav.level(i)->fZ(j) << ")" << endl
<< " rho: " << grav.level(i)->rho(j) << ", phi: " << grav.level(i)->phi(j) << ", redshift: " << grav.level(i)->redshift(j)
<< ", son: " << grav.level(i)->son(j)
<< endl;
shown++;
if(shown>5) {
break;
}
}
}
}
grav.releaseLevels();
break;
}
/*
* EXTREMA USAGE
*/
case 5:
{
cout << "Reading extrema " << argv[1] << endl;
FOFExtrema extrema(argv[1]);
cout << "OK" << endl;
cout << "Read " << extrema.nExtrema() << endl;
int maxExtremaToDisplay = 5;
//for(int i=52; i<54; i++) {
for(int i=0; i<min(maxExtremaToDisplay,extrema.nExtrema()); i++) {
cout << "EXTREMUM " << i << ": "
<< "density:" << extrema.extremum(i)->density() << " "
<< "seuil min:" << extrema.extremum(i)->minSeuil() << " avg: " << extrema.extremum(i)->avgSeuil()
<< " center: (" << extrema.extremum(i)->x() << "," << extrema.extremum(i)->y() << "," << extrema.extremum(i)->z() << ") "
<< endl;
}
cout << "TOTAL " << extrema.nExtrema() << " extrema" << endl;
break;
}
/*
* UNKNOWN FORMAT
*/
default:
cout << "Unknown format " << argv[2] << endl;
}
return 0;
}
/*
* USAGE
*/
else {
cout << "Usage : FOFReader <file> <format> \r\n"
" Formats: \r\n"
" 0: FOF Cube/Multicube\r\n"
" 1: FOF Struct\r\n"
" 2: FOF Masst\r\n"
" 3: DEUS Halo directory (= masst + strct)\r\n"
" 4: FOF Grav cube \r\n"
" 5: FOF Extrema \r\n"
<< argc << endl;
return 0;
}
return 0;
}