 |
|||
|
|
|||
| ||||||||||
|
|  MIL-D-89009
h. Tile reference coverage. The TILEREF directory contains
an area feature layer with faces and edges that
identifies the tiles used to subdivide the library.
3.8.4
BROWSE library contents. The BROWSE library is a
directory containing three mandatory VPF files and eight coverage
directories (each representing a thematic layer), with an optional
data quality table. The library files required by VPF are the
library header table, geographic reference table, and coverage
attribute table. The thematic layer names and associated coverage
names for the BROWSE library are listed in TABLE 1.
a. BROWSE library header table (LHT). The library header
table contains the data set, source, and security
information for the library. The format and content of
the BROWSE library header table are presented in
TABLE 10.
b. Geographic reference table (GRT). The format and
content for the BROWSE library geographic reference
table (GRT) are presented in TABLE 11.
c. Coverage attribute table (CAT). The BROWSE library
coverage attribute table (TABLE 12) contains four
columns: the row identifier, coverage name, coverage
description, and topology level. The coverage
description is the equivalent of the thematic layer
name.
d. Data quality table (DQT). The data quality table
(TABLE 13) contains information on the completeness,
consistency, date status, attribute accuracy, and
positional accuracy of the data.
22
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals