def image_coordinates(infile, outfile, make_coordinate_maps, make_distance_map,
overwrite):
"""Make maps that can be used to create profiles.
The following images can be created:
* LON -- Longitude coordinate
* LAT -- Latitude coordinate
* DIST -- Distance to mask
* SOLID_ANGLE -- Solid angle
"""
from astropy.io import fits
from gammapy.utils.fits import get_hdu
from gammapy.image import SkyMap, ExclusionMask
log.info('Reading {0}'.format(infile))
hdu = get_hdu(infile)
out_hdus = fits.HDUList()
if make_coordinate_maps:
skymap = SkyMap.empty_like(hdu)
log.info('Computing LON and LAT maps')
lon, lat = skymap.coordinates()
out_hdus.append(fits.ImageHDU(lon, hdu.header, 'LON'))
out_hdus.append(fits.ImageHDU(lat, hdu.header, 'LAT'))
if make_distance_map:
excl = ExclusionMask.from_image_hdu(hdu)
log.info('Computing DIST map')
dist = excl.exclusion_distance
out_hdus.append(fits.ImageHDU(dist, hdu.header, 'DIST'))
log.info('Writing {0}'.format(outfile))
out_hdus.writeto(outfile, clobber=overwrite)
def look_up_image(infile,
x,
y,
# pix,
):
"""Look up values in a map at given positions."""
from gammapy.utils.fits import get_hdu
from gammapy.image import lookup
log.debug('Reading {0}'.format(infile))
hdu = get_hdu(infile)
value = lookup(hdu, x, y)
print('Map value at position ({0}, {1}) is {2}'.format(x, y, value))
def look_up_image(infile,
x,
y,
# pix,
):
"""Look up values in a map at given positions."""
import logging
logging.basicConfig(level=logging.DEBUG, format='%(levelname)s - %(message)s')
from gammapy.utils.fits import get_hdu
from gammapy.image import lookup
logging.debug('Reading {0}'.format(infile))
hdu = get_hdu(infile)
value = lookup(hdu, x, y)
print('Map value at position ({0}, {1}) is {2}'.format(x, y, value))
def look_up_image(
infile,
x,
y,
# pix,
):
"""Look up values in a map at given positions."""
import logging
logging.basicConfig(level=logging.DEBUG,
format='%(levelname)s - %(message)s')
from gammapy.utils.fits import get_hdu
from gammapy.image import lookup
logging.debug('Reading {0}'.format(infile))
hdu = get_hdu(infile)
value = lookup(hdu, x, y)
print('Map value at position ({0}, {1}) is {2}'.format(x, y, value))
def coordinate_images(infile,
outfile,
make_coordinate_maps,
make_distance_map,
overwrite):
"""Make maps that can be used to create profiles.
The following images can be created:
* LON -- Longitude coordinate
* LAT -- Latitude coordinate
* DIST -- Distance to mask
* SOLID_ANGLE -- Solid angle
"""
import logging
logging.basicConfig(level=logging.DEBUG, format='%(levelname)s - %(message)s')
from astropy.io import fits
from gammapy.utils.fits import get_hdu
logging.info('Reading {0}'.format(infile))
hdu = get_hdu(infile)
out_hdus = fits.HDUList()
if make_coordinate_maps:
from gammapy.image import coordinates
logging.info('Computing LON and LAT maps')
lon, lat = coordinates(hdu)
out_hdus.append(fits.ImageHDU(lon, hdu.header, 'LON'))
out_hdus.append(fits.ImageHDU(lat, hdu.header, 'LAT'))
if make_distance_map:
from gammapy.image import exclusion_distance
logging.info('Computing DIST map')
dist = exclusion_distance(hdu.data)
out_hdus.append(fits.ImageHDU(dist, hdu.header, 'DIST'))
logging.info('Writing {0}'.format(outfile))
out_hdus.writeto(outfile, clobber=overwrite)
def image_coordinates(infile,
outfile,
make_coordinate_maps,
make_distance_map,
overwrite):
"""Make maps that can be used to create profiles.
The following images can be created:
* LON -- Longitude coordinate
* LAT -- Latitude coordinate
* DIST -- Distance to mask
* SOLID_ANGLE -- Solid angle
"""
from astropy.io import fits
from gammapy.utils.fits import get_hdu
from gammapy.image import SkyMap, ExclusionMask
log.info('Reading {0}'.format(infile))
hdu = get_hdu(infile)
out_hdus = fits.HDUList()
if make_coordinate_maps:
skymap = SkyMap.empty_like(hdu)
log.info('Computing LON and LAT maps')
lon, lat = skymap.coordinates()
out_hdus.append(fits.ImageHDU(lon, hdu.header, 'LON'))
out_hdus.append(fits.ImageHDU(lat, hdu.header, 'LAT'))
if make_distance_map:
excl = ExclusionMask.read(hdu)
log.info('Computing DIST map')
dist = excl.exclusion_distance
out_hdus.append(fits.ImageHDU(dist, hdu.header, 'DIST'))
log.info('Writing {0}'.format(outfile))
out_hdus.writeto(outfile, clobber=overwrite)
from gammapy.utils.fits import get_hdu
from gammapy.background import Cube
import matplotlib.pyplot as plt
irf_path = 'perf_prod2/South_5h/irf_file.fits.gz'
table_hdu_bg = get_hdu(irf_path + '[BACKGROUND]')
# Need to fix that
table_hdu_bg.header['TTYPE7'] = 'Bgd'
table_hdu_bg.header['TUNIT7'] = '1 / (MeV s sr)'
#
cube_bg = Cube.from_fits_table(table_hdu_bg, scheme='bg_cube')
### Bkg integrated on the entire FOV
bkg_rate_diff = cube_bg.integral_images
delta_energy = cube_bg.energy_edges[1:] - cube_bg.energy_edges[:-1]
bkg_rate = bkg_rate_diff * delta_energy.to('MeV')
plt.figure('bkg rate')
plt.plot(cube_bg.energy_edges.log_centers.to('TeV'),
bkg_rate,
'o',
drawstyle='default')
plt.axis([1.e-2, 1.e3, 1.e-8, 1.e2])
plt.loglog()
plt.show(block=False)
from gammapy.utils.fits import get_hdu
from gammapy.background import Cube
import matplotlib.pyplot as plt
irf_path = 'perf_prod2/South_5h/irf_file.fits.gz'
table_hdu_bg = get_hdu(irf_path + '[BACKGROUND]')
# Need to fix that
table_hdu_bg.header['TTYPE7'] = 'Bgd'
table_hdu_bg.header['TUNIT7'] = '1 / (MeV s sr)'
#
cube_bg = Cube.from_fits_table(table_hdu_bg, scheme='bg_cube')
### Bkg integrated on the entire FOV
bkg_rate_diff = cube_bg.integral_images
delta_energy = cube_bg.energy_edges[1:] - cube_bg.energy_edges[:-1]
bkg_rate = bkg_rate_diff * delta_energy.to('MeV')
plt.figure('bkg rate')
plt.plot(cube_bg.energy_edges.log_centers.to('TeV'),
bkg_rate, 'o', drawstyle='default')
plt.axis([1.e-2, 1.e3, 1.e-8, 1.e2])
plt.loglog()
plt.show(block=False)
from astropy import units as u
from gammapy.utils.fits import get_hdu
from gammapy.irf import EnergyDispersion2D
import matplotlib.pyplot as plt
irf_path = 'perf_prod2/South_5h/irf_file.fits.gz'
table_hdu_disp = get_hdu(irf_path + '[ENERGY DISPERSION]')
e_disp_2d = EnergyDispersion2D.from_fits(table_hdu_disp)
# Theta values are weird, nedd to be investiguated:
# THETA_LO: 0., 4.5
# THETA_HI: 4.5, 9.0
e_disp = e_disp_2d.to_energy_dispersion(offset=4.5 * u.deg)
#plt.figure('edisp')
#e_disp.plot_matrix()
#plt.show()
from astropy.table import Table
from astropy import units as u
from gammapy.utils.fits import get_hdu
from gammapy.irf import EffectiveAreaTable2D
import matplotlib.pyplot as plt
irf_path = 'perf_prod2/South_5h/irf_file.fits.gz'
table_hdu_area = get_hdu(irf_path + '[EFFECTIVE AREA]')
table_area = Table(table_hdu_area.data)
# Needed fix
table_area['ENERG_LO'].unit = u.TeV
table_area['ENERG_HI'].unit = u.TeV
table_area['THETA_LO'].unit = u.deg
table_area['THETA_HI'].unit = u.deg
table_area['EFFAREA'].unit = u.m * u.m
table_area['EFFAREA_RECO'].unit = u.m * u.m
# End
eff_area_2d = EffectiveAreaTable2D.from_table(table_area)
eff_area = eff_area_2d.to_effective_area_table(offset=0.5 * u.deg)
plt.figure('AREA')
ax = eff_area.plot()
ax.set_yscale('log')
plt.show(block=False)
