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Added a skymapper

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This commit is contained in:
Guilhem Lavaux 2014-06-06 09:42:44 +02:00
parent c1931db2a8
commit fb54034762
2 changed files with 21 additions and 2 deletions
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19
python_sample/build_nbody_skymap.py Normal file
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import cosmotool as ct
import h5py as h5
L=600.
Nside=128
with h5.File("fields.h5", mode="r") as f:
density = f["density"][:]
N = density.shape[0]
ix = (np.arange(N)-0.5)*L/N - 0.5 * L
dist2 = (ix[:,None,None]**2 + ix[None,:,None]**2 + ix[None,None,:]**2)
flux = density / dist2
projsky1 = ct.spherical_projection(Nside, flux, 0, 52, integrator_id=1)
projsky0 = ct.spherical_projection(Nside, flux, 0, 52, integrator_id=0)