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c In this program we (1) open an HDF-EOS file, (2) create the
c swath interface, and (3) define the swath field dimensions
c ===========================================================
program he5_sw_setupF_32
implicit none
include 'hdfeos5.inc'
integer status
integer he5_swopen
integer he5_swcreate
integer he5_swdefdim
integer he5_swdefmap
integer he5_swdefimap
integer he5_swdetach
integer he5_swclose
integer swfid, swid
integer*4 dtrack, extdata
integer*4 offset, incr
integer*4 indx(12)
data indx /0,1,3,6,7,8,11,12,14,24,32,39/
c Open the HDF-EOS file, "swath.he5" using "TRUNC" file access code
c -----------------------------------------------------------------
swfid = he5_swopen('swath.he5',HE5F_ACC_TRUNC)
write(*,*) 'File ID returned by he5_swopen(): ',swfid
c Create the swath, "Swath1", within the file
c -------------------------------------------
swid = he5_swcreate(swfid, "Swath1")
write(*,*) 'Swath ID returned by he5_swcreate(): ',swid
c Define Geolocation and Data dimensions
c --------------------------------------
c ----------------------------------------------------------------------
c Typically, many fields within a swath share the same dimension. The
c swath interface therefore provides a way of defining dimensions that
c will then be used to define swath fields. A dimension is defined with
c a name and a size and is connected to the particular swath through the
c swath id. In this example, we define the geo- location track and
c cross track dimensions with size 20 and 10 respectively and two
c dimensions corresponding to these but with twice the resolution.
c Also, we define "Bands" and "unlimited" dimensions.
c ----------------------------------------------------------------------
dtrack = 20
status = he5_swdefdim(swid, "GeoTrack", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 10
status = he5_swdefdim(swid, "GeoXtrack", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 40
status = he5_swdefdim(swid, "Res2tr", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 20
status = he5_swdefdim(swid, "Res2xtr", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 15
status = he5_swdefdim(swid, "Bands", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 12
status = he5_swdefdim(swid, "IndxTrack", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
dtrack = 4
status = he5_swdefdim(swid, "ProfDim", dtrack)
write(*,*) 'Status returned by he5_swdefdim(): ',status
c Define "External" dimension
c ---------------------------
extdata = 60
status = he5_swdefdim(swid, "ExtDim", extdata)
write(*,*) 'Status returned by he5_swdefdim(): ',status
c Define Unlimited (appendable) dimension
c ---------------------------------------
status = he5_swdefdim(swid, "Unlim", HE5S_UNLIMITED_F)
write(*,*) 'Status returned by he5_swdefdim(): ',status
c ----------------------------------------------------------------------
c Once the dimensions are defined, the relationship (mapping)between the
c geolocation dimensions, such as track and cross track, and the data
c dimensions, must be established. This is done through the SWdefdimmap
c routine. It takes as input the swath id, the names of the dimensions
c designating the geolocation and data dimensions, respectively, and the
c offset and increment defining the relation.
c
c In the first example we relate the "GeoTrack" and "Res2tr" dimensions
c with an offset of 0 and an increment of 2. Thus the ith element of
c "Geotrack" corresponds to the 2 * ith element of "Res2tr".
c
c In the second example, the ith element of "GeoXtrack" corresponds to
c the 2 * ith + 1 element of "Res2xtr".
c -----------------------------------------------------------------------
c Define dimension mappings
c -------------------------
offset = 0
incr = 2
status = he5_swdefmap(swid, "GeoTrack",
1 "Res2tr", offset, incr)
write(*,*) 'Status returned by he5_swdefmap(): ',status
offset = 1
status = he5_swdefmap(swid, "GeoXtrack",
1 "Res2xtr", offset, incr)
write(*,*) 'Status returned by he5_swdefmap(): ',status
c Define indexed dimension mapping
c --------------------------------
status = he5_swdefimap(swid, "IndxTrack",
1 "Res2tr", indx)
write(*,*) 'Status returned by he5_swdefimap(): ',status
c Detach from the swath
c ---------------------
status = he5_swdetach(swid)
write(*,*) 'Status returned by he5_swdetach(): ',status
c Close the swath file
c --------------------
status = he5_swclose(swfid)
write(*,*) 'Status returned by he5_swclose(): ',status
stop
end
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