 |
|||
|
|
|||
| ||||||||||
|
|  MIL-D-89009
6.
NOTES
(This section contains information of a general or
explanatory nature that may be helpful, but is not mandatory.)
6.1
Intended use.
6.1.1
General usage. The DCW database is intended for use
as a small-scale general purpose basemap which can support GIS
applications. It can be used as a background display for other
geographic data. The DCW is intended for both use by military and
civilian government agencies.
6.1.2
Non-intended usage. The DCW database is not
appropriate for aeronautical navigation. The DCW product was not
designed to satisfy visual or radar in-flight navigation
requirements, and therefore is not intended for applications
involving detailed flight planning for medium-level flight or low-
altitude/high-speed operations.
6.1.3
Analysis limitation. Analytical use of DCW data at a
scale larger than 1:1,000,000 is not recommended.
6.2
Acquisition requirements. When this specification is
used in acquisition, the applicable issue of the DODISS must be
cited in the solicitation (see 2.1.1 and 2.2).
6.3
Supersession.
This section is not applicable to this
specification.
6.4
Definitions. These definitions are taken from the
Vector Product Format MIL-STD-600006, April 1992. Many of these
terms are used in this document.
Area feature. A geographic entity that encloses a region;
for example, a lake, administrative area, or state.
Area feature class. A collection of area features that
maintains a homogeneous set of attributes. Implies the use of
face primitives.
Area feature table. The implementation of an area feature
class in a VPF attribute table.
Attribute. A property of an entity; for example, the color
of a building, the width of a road, or the accuracy level of a
database. Defined subtypes of an attribute are the feature
attribute, coverage attribute, database attribute, and library
attribute.
65
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals