test06.yaml

# smoothing kernel
psf : {type : Moffat , beta : 4 , fwhm : 2}

# Define the galaxy profile
gal :
    type : InclinedExponential
    half_light_radius : { type : Random , min : 0.05 , max : 25 }
    scale_h_over_r : { type : Random , min : 0.1 , max : 0.2 }
    flux :
        type : RandomDistribution
        function : x**-1.5 # power law random distribution
        x_min : 1.0e4
        x_max : 1.0e7
    inclination :
        type : Radians
        theta :
            type : RandomDistribution
            function : "0.5 * math.sin(x)" # note python language used here
            x_min : 0
            x_max : { type : Eval, str : "math.pi" } # more python here
    rotation : 
        type : Random # to ensure that the Inclined Exponential is rotated about a random axis.
    
# global image properties
image : 
    type : Scattered # scatter the galaxies across the image
    size : 512 # pixels # could also use xsize and ysize
    nobjects : 100
    image_pos :
        type : XY
        x : { type : Random , min : 1 , max : 512 }
        y : { type : Random , min : 1 , max : 512 }
    # noise : {sky_level : 1.0e2}  # ADU / arcsec^2
    random_seed : 8383721
    stamp_size : 512
    
---

# output setup
output :
    type : Fits
    dir : output
    file_name : test06_nonoise_stamplimit.fits
    nproc : -1 # use as many processors as available to construct the image
    truth : # also generate a 'truth' catalogue recording input parameters
        file_name : truth06.dat
            # type : NumberedFile
            # root : 'truth' # string appended at beginning of file name
            # ext : '.dat' # ascii file
        columns : # list all columns desired in output truth catalogue
            object_id : obj_num
            image_id : image_num
            file_id : file_num
            flux : gal.flux
            radius : gal.half_light_radius
            h_over_r : gal.scale_h_over_r
            inclination : gal.inclination # .rad will be appended to make explicit units in radians
            theta : gal.rotation # as above
            image_pos : image_pos

--- 

# global image properties
image : 
    noise : {sky_level : 1.0e2}  # ADU / arcsec^2

# output setup
output :
    type : Fits
    dir : output
    file_name : test06_noise_stamplimit.fits
    nproc : -1 # use as many processors as available to construct the image