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|  MIL-D-89009
3.8.8
Primitive-level record layouts Contained within each
coverage directory are tile subdirectories that contain primitive
tables. The DCW primitive tables contain three geometric
primitive types and one cartographic primitive type. The
geometric primitive tables are entity node, edge, and face. The
cartographic primitive table is text. The primitive tables
implemented in the DCW library coverages are indicated in TABLE 50
according to their associated coverages. The primitive tables in
the BROWSE library coverages are indicated in TABLE 51 according
to their associated coverage.
DCW primitive tables by coverage.
TABLE 50.
DCW libraries
Coverage
Primitive tables
thematic layers
name
Face
Edge
Node
Text
Aeronautical
AE
END
Culture Landmarks
CL
FAC,RNG
EDG
END
TXT
Data Quality
DQ
FAC,RNG
EDG
TXT
Drainage
DN
FAC,RNG
EDG
END
TXT
Drainage-Supplemental
DS
END
Hypsography
HY
FAC,RNG
EDG
END
Hypsography-Supplemental
HS
EDG
END
Land Cover
LC
FAC,RNG
EDG
END
TXT
Ocean Features
OF
EDG
END
TXT
Physiography
PH
EDG
TXT
Political/Oceans
PO
FAC,RNG
EDG
END
TXT
Populated Places
PP
FAC,RNG
EDG
END
TXT
Railroads
RR
EDG
TXT
Roads
RD
EDG
TXT
Transportation Structure
TS
EDG
END
TXT
Utilities
UT
EDG
TXT
Vegetation
VG
FAC,RNG
EDG
Other DCW library layers
Coverage
Primitive tables
name
Face
Edge
Node
Text
Gazetteer
GAZETTE
END
Library Reference
LIBREF
EDG
Tile Reference
TILEREF
FAC,RNG
EDG
BROWSE primitive tables by coverage.
TABLE 51.
BROWSE library
Coverage
Primitive tables
thematic layers
name
Face
Edge
Node
Text
ONC Compilation Date
CO
FAC,RNG
EDG
Data Volume
DV
FAC,RNG
EDG
Drainage
DN
FAC,RNG
EDG
Geographic Regions
GR
FAC,RNG
EDG
TXT
Hypsographic Data
DA
FAC,RNG
EDG
Availability
ONC Index
IN
FAC,RNG
EDG
TXT
Political/Oceans
PO
FAC,RNG
EDG
TXT
Populated Places
PP
END
TXT
47
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