NAME¶
wcsware - Extract WCS keywords for an image
SYNOPSIS¶
wcsware [
-a<alt>] [
-f] [
-h<hdu>]
[
-p] [
-x] [
<fitsfile>]
DESCRIPTION¶
wcsware extracts the WCS keywords for an image from the specified FITS file,
constructs wcsprm structs for each coordinate representation found and
performs a variety of operations using them.
The FITS file may be specified according to the syntax understood by cfitsio,
for example "file.fits.gz+1" refers to the first extension of a
gzip'd FITS file. Use "-" or omit the file name for input from
stdin.
OPTIONS¶
- -a<alt>
- Specify an alternate coordinate representation to be used (ignored if
there is only one).
- -f
- Apply wcsfix() to the header.
- -h<hdu>
- Move to HDU number (1-relative) which is expected to contain an image
array. (Useful for input from stdin.)
- -p
- Print the struct(s) using wcsprt() (default operation).
- -P
- Same as -p but don't print a default struct.
- -x
- Convert pixel coordinates, obtained from stdin, to world coordinates using
wcsp2s().
- -w
- Convert world coordinates, obtained from stdin, to pixel coordinates using
wcss2p().