Pitney Bowes MapInfo Professional - Manual (Page 513)

Definition Term
The U.S. Military Grid Reference System (MGRS)
is a grid reference system that MapInfo Military Grid Reference System
Professional supports when displaying maps in a
Map window. It is the military version of the
civilian-use Universal Transverse Mercator (UTM)
grid system. Military grid references are very similar
to the mathematical Cartesian x,y system in which
coordinates are giving in terms of x (easting) and
y (northing). In this system, the world is generally
divided into 6° by 8° geographic areas, each of
which is given a unique identification, called the
Grid Zone Designation. These areas are covered
by a pattern of 100,000-meter squares. Each
square is identified by two letters called the
100,000-meter square identifications. A reference
keyed to a gridded map of any scale is made by
giving the 100,000- meter square identification
together with the numerical location. Numerical
references within the 100,000-meter square are
given to the desired accuracy in terms of the
easting (E) and northing (N) grid coordinates for
the point. The Grid Zone Designation usually is
prefixed to the identification when references are
made in more than one grid zone designation area.
For any given map object, the smallest rectangle
that completely encompasses the object. Minimum Bounding Rectangle (MBR)
The projection in which a map's coordinate points
are stored. MapInfo Professional allows you to native projection
display maps in other projections, but not as fast
as displaying maps in their native projection.
An end-point of a line object, or an end-point of a
line segment which is part of a polyline or region
object. node
A map in which objects are not explicitly referenced
to locations on the earth's surface. Floor plans are
typical examples. Non-Earth map
An ODBC driver is a dynamic-link library (.DLL) file
that MapInfo Professional uses to connect to an ODBC drivers
SQL database. Each type of SQL database
requires a different ODBC driver.
An ODBC table is a table residing in a remote SQL
database. ODBC table
Many of our international customers want to display
MasterMap GML files developed by the Ordnance OSGB MasterMap GML Files
Survey of Great Britain (OSGB). We provide
support for some of the Topography features
(OSGB version 2.0), Topographic Area, Lines and
Points, Cartographic Symbols and Boundary Lines.
513 MapInfo Professional User Guide
Appendix E: Glossary of Terms