Digital Nautical Chart (DNC) - NGA

MIL-PRF-89023
TABLE 57. Schema for edge and face bounding rectangle table
Column name Column name description Column
definition
ID Row identifier and
primary key
I,1,P
XMIN Minimum X coordinate F,1,N
YMIN Minimum Y coordinate F,1,N
XMAX Maximum X coordinate F,1,N
YMAX Maximum Y coordinate F,1,N
TABLE 58. Example of edge or face bounding rectangle table
ID XMIN YMIN XMAX YMAX
2 10.98 13.55 14.90 20.99
3 1.95 10.00 3.32 28.66
4 34.88 2.47 63.85 12.67
g. Text primitive table. The text primitive table is composed of
three columns: row identifier, text string and shape line (TABLE 59). The
string column contains the actual text to be displayed. The shape line column
contains the coordinate string which defines how the text shall be placed. An
example of a text primitive table is presented in TABLE 60.
TABLE 59. Schema for text primitive table
Column name Column name Column
description definition
ID Text primary key I,1,P
STRING Text string T,*,N
SHAPE_LINE The shape line C,*,N
TABLE 60. Example of text primitive table (TXT)
ID STRING SHAPE_LINE
1 Gulfport -5.811609,43.562006
2 Long Beach -8.574136,43.435287
- - -
18 Pass Christian -6.835582,40.736553,
-6.825007,40.846355
n n n
3.8.10 Non-BROWSE primitive tables. The area, line, point, and text
primitive tables implemented in the non-BROWSE library coverages are indicated
in TABLES 61-64, along with the valid feature tables.
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