tclDustGetval
ABSTRACT:
Routines to get falues from David Schlegel's dust maps.
Return the extinction in each filter at the specified galactic
coordinates. The results are returned as a TCL keyed list, with each
filter (i.e., u) as the key, and the extinction in that filter as
the value. This routine calls "atDustGetvalFast" at the specified
galactic coordinates, then uses hardwired Rv values to convert the
returned E(B-V) value to extinction values in each of the SDSS
filters.
TCL SYNTAX:
atExtinctionGet "<l>" "<b>"
TCL HELP STRING:
Return extinction in each filter at specified galactic coordinates
TCL ARGUMENTS:
:
"<l>" : Galactic longitude (degrees)
"<b>" : Galactic latitude (degrees)
C ROUTINE CALLED:
atDustGetval in atDustGetval.c
Additional information is in the README file.
Return the value of a dust map at the specified location
TCL SYNTAX:
atDustGetval "<gall>" "<galb>" "-mapName" "-interpolate" "-verbose"
TCL HELP STRING:
Return the value of a dust map at the specified location. The maps
are from Maps of Dust IR Emission for Use in Estimation of Reddening and
CMBR Foregrouns by Shclegel, Finkbeiner and Davie, ApJ 1998. The maps
are I100 (100-micron map in MJy/Sr); X (X-map, temperature-correction
factor; T (temperature map in degrees Kelvin for n=2 emissivity); Ebv
( E(B-V) in magnitudes) and mask, and 8-bit mask
TCL ARGUMENTS:
:
"<gall>" : galactic longitude in degrees
"<galb>" : galactic latitude in degrees
"-mapName" : I100, X, T, Ebv (default), mask
"-interpolate" : 1: linear interp. from 4 nearest pixels (default) or 0: nearest pixel
"-verbose" : 0: runs quietly (default) or 1: print pixel coordinates and map values
C ROUTINE CALLED:
atVDustGetval in atVDustGetval.c
Additional information is in the README file.
Return the value of a VDust map at the specified location
TCL SYNTAX:
atVDustGetval "<gall>" "<galb>" "<value>" "-mapName" "-interpolate" "-verbose"
TCL HELP STRING:
Return the value of a dust map at the specified location. The maps
are from Maps of Dust IR Emission for Use in Estimation of Reddening and
CMBR Foregrouns by Shclegel, Finkbeiner and Davie, ApJ 1998. The maps
are I100 (100-micron map in MJy/Sr); X (X-map, temperature-correction
factor; T (temperature map in degrees Kelvin for n=2 emissivity); Ebv
( E(B-V) in magnitudes) and mask, and 8-bit mask
TCL ARGUMENTS:
:
"<gall>" : galactic longitude in degrees
"<galb>" : galactic latitude in degrees
"<value>" : vector to store the returned values
"-mapName" : I100, X, T, Ebv (default), mask
"-interpolate" : 1: linear interp. from 4 nearest pixels (default) or 0: nearest pixel
"-verbose" : 0: runs quietly (default) or 1: print pixel coordinates and map values
C ROUTINE CALLED:
atDustGetvalFast in atDustGetval.c
Additional information is in the README file.
Return the value of a dust map at the specified location
TCL SYNTAX:
atDustGetvalFast "<gall>" "<galb>" "-mapName" "-interpolate" "-verbose"
TCL HELP STRING:
Return the value of a dust map at the specified location. The maps
are from Maps of Dust IR Emission for Use in Estimation of Reddening and
CMBR Foregrouns by Shclegel, Finkbeiner and Davie, ApJ 1998. The maps
are I100 (100-micron map in MJy/Sr); X (X-map, temperature-correction
factor; T (temperature map in degrees Kelvin for n=2 emissivity); Ebv
( E(B-V) in magnitudes) and mask, and 8-bit mask. The first time called
for a map, read in the FITS file to a REGION. Clean-up with
atDustGetvalFastClean.
TCL ARGUMENTS:
:
"<gall>" : galactic longitude in degrees
"<galb>" : galactic latitude in degrees
"-mapName" : I100, X, T, Ebv (default), mask
"-interpolate" : 1: linear interp. from 4 nearest pixels (default) or 0: nearest pixel
"-verbose" : 0: runs quietly (default) or 1: print pixel coordinates and map values
C ROUTINE CALLED:
atVDustGetvalFast in atVDustGetvalFast.c
Additional information is in the README file.
Return the value of a VDust map at the specified location
TCL SYNTAX:
atVDustGetvalFast "<gall>" "<galb>" "<value>" "-mapName" "-interpolate" "-verbose"
TCL HELP STRING:
Return the value of a dust map at the specified location. The maps
are from Maps of Dust IR Emission for Use in Estimation of Reddening and
CMBR Foregrouns by Shclegel, Finkbeiner and Davie, ApJ 1998. The maps
are I100 (100-micron map in MJy/Sr); X (X-map, temperature-correction
factor; T (temperature map in degrees Kelvin for n=2 emissivity); Ebv
( E(B-V) in magnitudes) and mask, and 8-bit mask
TCL ARGUMENTS:
:
"<gall>" : galactic longitude in degrees
"<galb>" : galactic latitude in degrees
"<value>" : vector to store the returned values
"-mapName" : I100, X, T, Ebv (default), mask
"-interpolate" : 1: linear interp. from 4 nearest pixels (default) or 0: nearest pixel
"-verbose" : 0: runs quietly (default) or 1: print pixel coordinates and map values
C ROUTINE CALLED:
atDustGetvalFastClean in atDustGetval.c
Additional information is in the README file.
Remove region from memory previously retrieved from a dust map.
TCL SYNTAX:
atDustGetvalFastClean "-mapName"
TCL HELP STRING:
Removes the regions previously read into memory by the task
atDustGetvalFastClean. This simply frees memory.
TCL ARGUMENTS:
:
"-mapName" : I100, X, T, Ebv (default), mask
C ROUTINE CALLED:
atDustMaskParse in atDustGetval.c
Additional information is in the README file.
Remove region from memory previously retrieved from a dust map.
TCL SYNTAX:
atDustMaskParse "<maskval>"
TCL HELP STRING:
Returns dust mask bit info for input mask value. Mask values are
determined from the atDustGetval set of commands.
TCL ARGUMENTS:
:
"<maskval>" : value of dust mask returned from atDustGetval