Description:
This routine writes the value, variance and position of each data point to a ASCII file. It is
called as part of the EXTRACT_DATA task. The interface is the same as that used in the
REBIN task. The data and variance are in volts. The positions are in radians. The data are
written out as columns (RA DEC DATA VAR) and subsets can be extracted by using SCUBA
sections.
Invocation
CALL SURF_WRITE_DATA( FD, NPTS, IN_DATA, IN_VARIANCE, BOL_RA,
BOL_DEC, STATUS )
Arguments
FD = INTEGER (Given)
Output file descriptor
NPTS =
INTEGER (Given)
Number of points in input data
IN_DATA( NPTS ) = REAL (Given)
Data
value
IN_VARIANCE( NPTS ) = REAL (Given)
Variance on data
BOL_RA( NPTS ) =
DOUBLE (Given)
Bolometer position (radians offset from map centre)
BOL_DEC( NPTS ) =
DOUBLE (Given)
Bolometer position (radians offset from map centre)
STATUS = INTEGER
(Given and Returned)
The global status
Notes:
For each file name that is entered, values
for the parameters SELECT_INTS, WEIGHT, SHIFT_DX and SHIFT_DY are requested.
ASCII
input files
The REF and IN parameters accept ASCII text files as input. These text files may contain
comments (signified by a #), NDF names, values for the parameters WEIGHT, SHIFT_DX and
SHIFT_DY, and names of other ASCII files. There is one data file per line. An example file
is:
| file1{b5} | 1.0 | 0.5 | 0.0 | # Read bolometer 5 from file1.sdf |
| file2 | | | | # Read file 2 but you will still be |
| | | | | # prompted for WEIGHT, and shifts. |
| file3{i3}- | 1.0 | 0.0 | 0.0 | # Use everything except int 3 |
| test.bat | | | | # Read in another text file |
| |
Note that the parameters are position dependent and are not necessary. Missing parameters are
requested. This means it is not possible to specify SHIFT_DX (position 3) without specifying the
WEIGHT. Also note that SCUBA sections can be specified with any input NDF.
Related Applications
SURF: REBIN, BOLREBIN, INTREBIN, CHANGE_QUALITY
Copyright
Copyright
©1995,1996,1997,1998,1999 Particle Physics and Astronomy Research Council. All Rights Reserved.