AIPS HELP file for OFMFILE in 31DEC22
As of Fri Mar 31 19:46:44 2023
HELP SECTION
OFMFILE
Type: Adverb (String*48)
Use: The color look-up tables applied to the images shown on the
TV may be saved in text files usually stored in an area
known by the logical name OFMFIL. These files are in ASCII
and have one record per input value in the form:
IIII : BBBBB GGGGG RRRRR
where IIII is the input intensity, BBBBB is the blue output
intensity, GGGGG is the green output intensity, and RRRRR is
the red output intensity. The range 0 to 10000 is scaled to
0.0 to 1.0 for loading to the TV. You must retain this
format exactly and have one record for each input value in
order of increasing input intensity. These files may be
edited by your favorite text editor. Their name is
.uuu, where is a 1-8 character name of your
choice (in upper case) and .uuu is your user number in
extended hexadecimal (base 36, with leading 0's as needed to
make 3 characters).
The standard AIPS OFMs are kept in an area with the
pre-defined logical name AIPSOFM. Use OFMDIR for a
list of these files.
You may also keep OFM files in any area of your choosing.
In that case, specify
OFMFILE = ':',
where is the logical name of your area (usually in
upper case) and the colon is required and implies this
usage. The full file name including any extension must be
given in this case. Note that the Unix-standard $ ahead of
the logical is omitted. Other forms are now acceptable as
well (except in OFMGET which requires a logical)
OFMFILE = 'MyOFM
will find the file in the logical directories AIPSOFM or
OFMFIL. A full path name may also be given
OFMFILE = '/home/primate2/egreisen/AIPS/Text.ofm
if it fits in 48 characters. Note that the trailing quote
mark is left off and this is the last command on the input
line so that the case is preserved.
All verbs which use this adverb are also capable of taking
an immediate argument which will override the adverb value.
For examples,
OFMZAP 'MYAREA:LOUSY.OFM'
OFMGET 'COLWED8'
Note that the apostrophies are required.
Verbs:
OFMGET......Load the specified OFM file to the TV OFM.
OFMSAVE.....Create a new OFM file of the specified name and
fill it with the current OFM.
OFMZAP......Delete the specified OFM file.
Tasks:
GREYS.......Make a grey-scale plot scaled with the OFM. Contours
may also be drawn.
KNTR........Make a grey-scale plot scaled with the OFM. Contours
and polarization vectors can also be drawn.
LWPLA.......Convert a plot file to PostScript for saving and/or
printing. The OFM is used to convert grey scales.
PCNTR.......Make a grey-scale plot scaled with the OFM. Contours
and polarization vectors are also drawn.
PLAYR.......Task to load one or two images and play with them on the
TV. OFMFILE is the name of a file to be fetched, saved,
and/or deleted. Can be changed interactively.
EXPLAIN SECTION
The AIPSOFM files provided are
Black & white ones:
BLACK Just as it says - all 0 or black
EYEBW The eye perceives this as linear
FOTOBW Actually linear
GREY01W 1 step wedge
GREY02W 2 step wedges
GREY04A 4 discreet levels.
GREY04B 8 discreet levels, alternating brighter and darker.
GREY04C 16 discreet levels in sets of 4, increasing between sets,
decreasing within each set
GREY04D 32 discreet levels in sets of 8, increasing between sets,
decreasing within each set
GREY04W 4 step wedges.
GREY08A 8 discreet levels.
GREY08B 16 discreet levels, alternating brighter and darker.
GREY08C 32 discreet levels in sets of 4, increasing between sets,
decreasing within each set
GREY08W 8 step wedges.
GREY16A 16 discreet levels.
GREY16B 32 discreet levels, alternating brighter and darker.
GREY16W 16 step wedges.
GREY32A 32 discreet levels
GREY32W 32 step wedges.
GREY64W 64 step wedges.
GREY128W Many discreet levels alternating brighter and darker, both
getting brighter as the level increases
GREY256 Continuous single wedge.
GREYLOGA 4 discreet steps increasing logarithmicly
GREYLOGB 4 discreet steps increasing logarithmicly
GREYLOGC 4 discreet steps increasing logarithmicly
GREYLOGD 4 discreet steps increasing logarithmicly
WHITE All white
ZERO See BLACK
Color ones
COLOUR16 16 blended steps of color also getting brighter
COLOUR8 8 blended steps of color all fairly bright
COLWED16 16 step wedges in different colors
COLWED8 8 step wedges in different colors
DEMO3 Similar to the previous in fewer steps
COMB2152 Blue, greens, purple, reds, yellow, white in blended steps
ROB1 Like COMB2152 with varying levels at which steps come in.
ROB2 Like COMB2152 with varying levels at which steps come in.
ROB3 Like COMB2152 with varying levels at which steps come in.
ROB4 Like COMB2152 with varying levels at which steps come in.
RAINBOW Smooth rainbow of colors from blue to red
STEP8 8 steps of color - basic AIPS TVFIDDLE set
STEPS8 8 steps of color - TVPSEUDO button C 3 times
STEP10 10 steps of color - TVPSEUDO button C 2 times
STEP64 64 steps of color in a rainbow - TVPSEUDO button C 4 times
RYPHLAME Red -> yellow -> white flame 1st color of TVPHLAME
GCPHLAME Green -> cyan -> white flame 2nd color of TVPHLAME
BPPHLAME Blue -> purple -> white flame 3rd color of TVPHLAME
BPHLAME Dark -> light blue -> white flame 4th color of TVPHLAME
GYPHLAME Green -> yellow -> white flame 5th color of TVPHLAME
RPPHLAME Red -> purple -> white flame 6th color of TVPHLAME