Information Technology Reference
In-Depth Information
NAME LATITUDE_MODEL
ALIAS ('LAT', 'Used by the historical projects
EARTH_PLANET')
CLASS MODEL
DEFINITION 'Latitudes north of the equator shall be
designated by the use of the plus (+) sign,
while latitudes south of the equator shall
be designated by the use of the minus sign
(-). The equator shall be designated by the
use of the plus sign (+).'
SHORT_DEFINITION 'Latitude'
UNITS Deg
SPECIFIC_INSTANCE (+00.000, 'Equator')
DATA_TYPE
REAL
RANGE
(-90.00, +90.00)
NAME
DATA_2
CLASS
DATA_FIELD
DEFINITION
'It represents an image taken from spacecraft W2'
SHORT_DEFINITION
'Spacecraft W2 Image'
COMMENT
'The image is an array of W_IMAGE_SIZE items called
DATA_2_PIXEL'
COMPONENT
DATA_2_PIXEL (1 .. W_IMAGE_SIZE)
KEYWORD
'IMAGE'
DATA_TYPE
COMPOSITE
This can be supplemented by the following, which defines the pixels within the
image.
NAME
DATA_2_PIXEL
CLASS
DATA_FIELD
DEFINITION
'It represents a pixel belonging to the image taken from
spacecraft W2'
SHORT_DEFINITION
'Spacecraft W2 Image pixel'
DATA_TYPE
INTEGER
RANGE
(0 , 255)
The DEDSL approach allows one to inherit definitions from a “community
dictionary” and override or add additional entities.
The mandatory attributes are indicated in bold characters below, while the
optional and conditional attributes are in italic characters:
