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Dealing with GDF files (any kind)
No access the Gildas derived type elements should be done before calling
the subroutine GILDAS_NULL, as some elements are dangling
pointers.
call gildas_null(hx,type)
where hx is the Gildas header to be initialized, and type
an optional character string indicating the desired type of Gildas data
structure. Recognized values are 'IMAGE', 'TABLE', 'UVT', 'TUV' and 'VOTABLE', in link to the types described
in Table 2. The default is set to 'IMAGE'.
Others changes include:
- The 4 triplets (refj,valj,incj) (with
)
have been removed. For a more generic approach with 7 dimensions, these
scalars have been replaced by 3 vectors ref(:), val(:),
inc(:) (as described in section 3.2.3).
- Similarly, the 4 pairs (minj,maxj) (with
)
have been removed. These
scalars have been replaced by 2
vectors minloc(:) and maxloc(:).
- Each section length variable has been renamed as detailed in
Table 3 (usually by adding the suffix _words to the
GDFV1 name). The general section has been split into the 2
sections dimension and coordinate. As described in
section 3.1.1, any non-zero value is now valid to indicate
that a section is enabled for reading or writing.
Table 3:
Renaming of section length variables between the GDFV1 and
GDFV2. Absent name indicate a section that has appeared or
disappeared.
Section |
GDFV1 |
GDFV2 |
General |
gene |
- |
Dimension |
- |
dim_words |
Blanking |
blan |
blan_words |
Extrema |
extr |
extr_words |
Coordinate |
- |
coor_words |
Description |
desc |
desc_words |
Position |
posi |
posi_words |
Projection |
proj |
proj_words |
Spectroscopy |
spec |
spec_words |
Resolution |
reso |
reso_words |
Noise |
sigm |
nois_words |
Astrometry |
prop |
astr_words |
UV Data |
- |
uvda_words |
Next: UV data format usage
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Gildas manager
2015-03-19