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input_map*
This routine reads a HEALPix map from a FITS file. This can deal with full sky
as well as cut sky maps
Location in HEALPix directory tree:
src/f90/mod/fitstools.f90
FORMAT call input_map*(
filename, map, npixtot, nmaps [, fmissval, header, units, extno]
)
ARGUMENTS
| name & dimensionality |
kind |
in/out |
description |
|---|
| |
|
|
|
|
filename(len=filenamelen) |
CHR |
IN |
FITS file to be read from,
containing a full sky or cut sky map |
| map(0:npixtot-1,1:nmaps) |
SP/ DP |
OUT |
full sky map(s) constructed
from the data present in the file, missing pixels are filled
with fmissval |
| npixtot |
I4B |
IN |
number of pixels in the full sky map |
| nmaps |
I4B |
IN |
number of maps in the file |
| |
|
|
|
|
fmissval (OPTIONAL) |
SP/ DP |
IN |
value to be given to missing pixels, its default
value is 0 |
| header(LEN=80)(1:) (OPTIONAL) |
CHR |
OUT |
FITS extension header |
| units(LEN=20)(1:nmaps) (OPTIONAL) |
CHR |
OUT |
maps units |
| extno (OPTIONAL) |
I4B |
IN |
extension number to read the data from
(0 based).default:0 (the first extension is read) |
EXAMPLE:
use pix_tools, only: nside2npix
use fitstools, only: getsize_fits, input_map
...
npixtot = getsize_fits('map.fits',nmaps=nmaps, nside=nside)
npix = nside2npix(nside)
allocate(map(0:npix-1,1:nmaps))
call input_map('map.fits', map, npix, nmaps)
Reads into map the content of the FITS file 'map.fits'
MODULES & ROUTINESThis section lists the modules and routines used by input_map*.
-
fitstools
- module, containing:
-
printerror
- routine for printing FITS error messages.
-
read_bintab
- routine to read a binary table
from a FITS file
-
read_fits_cut4
- routine to read cut sky
map from a FITS file
-
cfitsio
- library for FITS file handling.
RELATED ROUTINESThis section lists the routines related to input_map*
-
anafast
- executable that reads a HEALPix map and analyses it.
-
synfast
- executable that generate full sky HEALPix maps
-
getsize_fits
- subroutine to know the size of a FITS file.
-
output_map
- subroutine to write a FITS file
from a HEALPix map
-
write_bintabh
- subroutine to write a large
array into a FITS file piece by piece
-
input_tod*
- subroutine to read an arbitrary subsection of
a large binary table
Eric Hivon
2010-06-18
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