Program s2_sky2map

program s2_sky2map

        ! Uses
    use s2_types_mod
    use s2_sky_mod

        ! Calls
    call parse_options
    call s2_sky_compute_map
    call s2_sky_dilate
    call s2_sky_free
    call s2_sky_rotate
    call s2_sky_write_map_file

        ! Variables
    character (len=S2_STRING_LEN) :: filename_sky
    character (len=S2_STRING_LEN) :: filename_map
    type (s2_sky) :: sky
    integer :: nside
    logical :: new_nside = .false.
    logical :: beta_center = .false.
    logical :: norm_pres = .false.
    logical :: dil1_status = .false.
    logical :: dil2_status = .false.
    real (kind=s2_sp) :: dil1
    real (kind=s2_sp) :: dil2

        ! Subroutines and functions
    subroutine parse_options ()

end program s2_sky2map

Read a full s2_sky file and write the map to a HEALPix fits file.

Notes:

If the sky is stored only as alms then the map is computed at the nside specified in the sky file. If no nside is specified in the sky file then one may be specified as an input argument to this program or else an error will occur.

Usage:

[-help]: Display usage information.
[-sky filename_sky]: Name of full s2_sky fits file.
[-map filename_map]: Name of map HEAPix fits file to write.
[-nside nside]: Optional nside of output map fits file (see note above).
[-beta beta]: Optional beta rotation to rotate north pole to center of map for optimal viewing.

Author: J. D. McEwen (mcewen@mrao.cam.ac.uk)

Version: 0.1 - April 2005

Description of Variables

filename_sky

character (len=S2_STRING_LEN) :: filename_sky

filename_map

character (len=S2_STRING_LEN) :: filename_map

sky

type (s2_sky) :: sky

nside

integer :: nside

new_nside

logical :: new_nside = .false.

beta_center

logical :: beta_center = .false.

norm_pres

logical :: norm_pres = .false.

dil1_status

logical :: dil1_status = .false.

dil2_status

logical :: dil2_status = .false.

dil1

real (kind=s2_sp) :: dil1

dil2

real (kind=s2_sp) :: dil2

Description of Subroutines and Functions

parse_options

subroutine parse_options ()
    ! Calls: getArgument
end subroutine parse_options

Parse the options passed when program called.

Author: J. D. McEwen (mcewen@mrao.cam.ac.uk)

Version: 0.1 - November 2004