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Optionally allow to use a previously generated set of parameters for extracting particles. This allow enabling or disabling redshift distortion a posteriori.

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This commit is contained in:
Guilhem Lavaux 2011-12-08 20:03:14 -05:00
parent 7e8371c82e
commit ec148cf474
2 changed files with 66 additions and 1 deletions
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65
mytools/generateMock.cpp
View file

@ -295,6 +295,65 @@ void generateOutput(SimuData *data, int axis,
f.endCheckpoint(); f.endCheckpoint();
} }
void makeBoxFromParameter(SimuData *simu, double *efac, SimuData* &boxed, generateMock_info& args_info)
{
NcFile f(args_info.inputParameter_arg);
NcVar *v;
int *particle_id;
double *expansion_fac;
boxed = new SimuData;
boxed->Hubble = simu->Hubble;
boxed->Omega_M = simu->Omega_M;
boxed->Omega_Lambda = simu->Omega_Lambda;
boxed->time = simu->time;
boxed->BoxSize = simu->BoxSize;
NcVar *v_id = f.get_var("particle_ids");
long *edges1;
double ranges[3][2];
double mul[3];
edges1 = v_id->edges();
assert(v_id->num_dims()==1);
boxed->NumPart = edges1[0];
delete[] edges1;
particle_id = new int[boxed->NumPart];
v_id->get(particle_id, boxed->NumPart);
ranges[0][0] = f.get_att("range_x_min")->as_double(0);
ranges[0][1] = f.get_att("range_x_max")->as_double(0);
ranges[1][0] = f.get_att("range_y_min")->as_double(0);
ranges[1][1] = f.get_att("range_y_max")->as_double(0);
ranges[2][0] = f.get_att("range_z_min")->as_double(0);
ranges[2][1] = f.get_att("range_z_max")->as_double(0);
for (int j = 0; j < 3; j++)
{
boxed->Pos[j] = new float[boxed->NumPart];
boxed->Vel[j] = 0;
mul[j] = 1.0/(ranges[j][1] - ranges[j][0]);
}
uint32_t k = 0;
for (uint32_t i = 0; i < boxed->NumPart; i++)
{
int id = particle_id[i];
for (int j = 0; j < 3; j++)
{
boxed->Pos[j][i] = (simu->Pos[j][id]-ranges[j][0])*mul[j];
assert(boxed->Pos[j][k] > 0);
assert(boxed->Pos[j][k] < 1);
}
}
delete[] particle_id;
}
void makeBox(SimuData *simu, double *efac, SimuData *&boxed, generateMock_info& args_info) void makeBox(SimuData *simu, double *efac, SimuData *&boxed, generateMock_info& args_info)
{ {
float subsample = args_info.subsample_given ? args_info.subsample_arg : 1.0; float subsample = args_info.subsample_given ? args_info.subsample_arg : 1.0;
@ -480,7 +539,11 @@ int main(int argc, char **argv)
for (int j = 0; j < simu->NumPart; j++) expfact[j] = 1.0; for (int j = 0; j < simu->NumPart; j++) expfact[j] = 1.0;
} }
makeBox(simu, expfact, simuOut, args_info); if (args_info.inputParameter_given)
makeBoxFromParameter(simu, expfact, simuOut, args_info);
else
makeBox(simu, expfact, simuOut, args_info);
delete simu; delete simu;
generateOutput(simuOut, args_info.axis_arg, args_info.output_arg); generateOutput(simuOut, args_info.axis_arg, args_info.output_arg);

2
mytools/generateMock.ggo
View file

@ -28,3 +28,5 @@ option "peculiarVelocities" - "Added peculiar velocities distortion" flag off
option "cosmo" - "Apply cosmological redshift" flag on option "cosmo" - "Apply cosmological redshift" flag on
option "subsample" - "Subsample the input simulation by the specified amount" double optional option "subsample" - "Subsample the input simulation by the specified amount" double optional
option "inputParameter" - "Input geometry (optional, warning!)" string optional