Warp - warp (transform) input dataset
astwarp [OPTION...] ASTRdata
Warp is part of GNU Astronomy Utilities 0.14. Warp will
warp/transform the input image using an input coordinate matrix. Currently
it accepts any general projective mapping (which includes affine mappings as
a subset).
For more information, please run any of the following commands. In
particular the second contains a very comprehensive explanation of Warp's
invocation: expected input(s), output(s), and a full description of all the
options.
- All options and their
values:
- $ astwarp -P
- Inputs/Outputs
and options:
- $ info astwarp
- Full section in
manual/book:
- $ info Warp
- Full Gnuastro
manual/book:
- $ info gnuastro
If you couldn't find your answer in the manual, you can get direct
help from experienced Gnuastro users and developers. For more information,
please run:
- $ info help-gnuastro
Warp options:
- Input:
- --hendwcs=INT
- Header keyword number to end reading WCS.
- --hstartwcs=INT
- Header keyword number to start reading WCS.
- -h,
--hdu=STR/INT
- Extension name or number of input data.
- -I,
--ignorecase
- Ignore case in matching/searching columns.
- Output:
- -C,
--coveredfrac=FLT
- Acceptable fraction of output pixel covered.
- -D,
--dontdelete
- Don't delete output if it exists.
- -k, --keepwcs
- Do not apply warp to input's WCS
- -K,
--keepinputdir
- Keep input directory for automatic output.
- -o,
--output=STR
- Output file name.
- -T,
--type=STR
- Type of output: e.g., int16, float32, etc...
- Warps:
- -a, --align
- Align the image and celestial axes.
- -c,
--centeroncorner
- Center of coordinates on first pixel corner.
- -e,
--shear=FLT[,FLT]
- Shear along the given axis(es).
- -f,
--flip=INT[,INT]
- Flip along the given axis(es).
- -m,
--matrix=STR
- Raw transformation matrix, highest priority.
- -p,
--project=FLT[,FLT]
- Project along the given axis(es).
- -r,
--rotate=FLT
- Rotate by the given angle in degrees.
- -s,
--scale=FLT[,FLT]
- Scale along the given axis(es).
- -t,
--translate=FLT[,FLT]
- Translate along the given axis(es).
- Operating modes:
- -?, --help
- give this help list
- --checkconfig
- List all config files and variables read.
- --cite
- BibTeX citation for this program.
- --config=STR
- Read configuration file STR immediately.
- --lastconfig
- Do not parse any more configuration files.
- --log
- Information about output(s) in a log file.
- --minmapsize=INT
- Minimum bytes in array to not use ram RAM.
- -N,
--numthreads=INT
- Number of CPU threads to use.
- --onlyversion=STR
- Only run if the program version is STR.
- -P,
--printparams
- Print parameter values to be used and abort.
- --quietmmap
- Don't print mmap'd file's name and size.
- -q, --quiet
- Only report errors, remain quiet about steps.
- -S,
--setdirconf
- Set default values for this directory and abort.
- --usage
- give a short usage message
- -U,
--setusrconf
- Set default values for this user and abort.
- -V, --version
- print program version
Mandatory or optional arguments to long options are also mandatory
or optional for any corresponding short options.
GNU Astronomy Utilities home page:
http://www.gnu.org/software/gnuastro/
Report bugs to bug-gnuastro@gnu.org.
Copyright © 2015-2021, Free Software Foundation, Inc.
License GPLv3+: GNU General public license version 3 or later.
This is free software: you are free to change and redistribute it. There is NO
WARRANTY, to the extent permitted by law.
Written/developed by Mohammad Akhlaghi
The full documentation for Warp is maintained as a Texinfo
manual. If the info and Warp programs are properly installed
at your site, the command
- info Warp
should give you access to the complete manual.