mAddExec - Online in the Cloud

PROGRAM:

NAME

mAddExec - Create a mosaic from images already in the same projection

SYNOPSIS

mAddExec [-p imgdir] [-n(o-areas)] [-a mean|median] [-e(xact-size)] [-d level] [-s
statusfile] [-x TilesSizeAxis0] [-y TileSizeAxis1] [-o OverlapAxis0] [-q OverlapAxis1]
images.tbl template.hdr tiledir out.fits

DESCRIPTION

Builds a series of outputs (which together make up a tiled output) through multiple
executions of the mAdd modules.

OPTIONS

-p imgdir
Specifies path to directory containing reprojected images. If the -p switch is not
included, mAdd will look for the input images in the current working directory.

-n Co-addition ignores weighting by pixel areas and performs coaddition based only on
pixel postions. Will not output an area image for the output image.

-a type
Select type of averaging to be done on accumulated pixel values (either mean or
median).

-e Enables exact size mode. The output image will match the header template exactly,
instead of shrinking the output to fit the data.

-d level
Turns on debugging to the specified level (1-3).

-s statusfile
mAdd output and errors will be written to statusfile instead of stdout.

ARGUMENTS

images.tbl
ASCII table (generated by mImgtbl) containing metadata for all images to be
coadded.

template.hdr
FITS header template to be used in generation of output FITS

tiledir
Directory to contain output tile images and header templates

out.fits
Prefix for output tile images

RESULT

If successful, mAddExec creates a set of FITS tiles covering the area described in
template.hdr, as well as matching "tiled" header files for each output tile.

MESSAGES

OK [struct stat = "OK", time=time]

ERROR MPI initialization failed

ERROR Invalid argument for -x flag

ERROR Invalid argument for -y flag

ERROR Invalid argument for -o flag

ERROR Invalid argument for -q flag

ERROR Invalid argument for -a flag

ERROR Cannot open status file: statusfile

ERROR command line option was not integer

ERROR option cannot be negative

ERROR Invalid image metadata file: filename

ERROR Need columns: cntr,fname, crpix1, crpix2, cdelt1, cdelt2, naxis1, naxis2, crval1,
crval2 in image list

ERROR Memory allocation failed

ERROR Too many open files

ERROR Input wcsinit() failed.

ERROR Failed to allocate enough memory for output arrays

ERROR Bad WCS in header template.

ERROR Template file not found.

ERROR FITS library error

ERROR general error message

EXAMPLES

The following example runs mAddExec on this set of images, generating a set of tiles
conforming to the size and overlap specified on the command line:

$ mAddExec -p proj -x 1000 -y 1000 images.tbl template.hdr tiles tile.fits
[struct stat="OK", mTileHdr_count=4, mTileHdr_failed=0, mTileHdr_warning=0,
mAdd_count=4, mAdd_failed=0, mAdd_warning=0, time=8]

$ ls tiles
tile_0_0.hdr

tile_0_0.fits

tile_0_0_area.fits

tile_0_1.hdr

tile_0_1.fits

tile_0_1_area.fits

tile_1_0.hdr

tile_1_0.fits

tile_1_0_area.fits

tile_1_1.hdr

tile_1_1.fits

tile_1_1_area.fits

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