Pitney Bowes MapInfo Professional - Manual (Page 177)

to MapInfo Professional From Oracle: GTYPES
Region 7 MULTIPOLYGON Geometry has multiple
polygons (more than one exterior boundary).
Geometry Conversions from Oracle Spatial to MapInfo Professional
The following lists Oracle Spatial geometry types and what they convert to in MapInfo Professional.
Comments Converted
to
MapInfo
Type Geometry Type
Circular Arcs are made up of three coordinates, starting
point, any point on the arc, and ending point. MapInfo Polyline Circular Arc
Professional will use these three points to form a polyline
representing the arc.
Circles are made up of three coordinates on the
circumference of the circle. MapInfo Professional will use
these three points to form a circular region. Region Circle
Region Rectangle
Multipoint MULTIPOINT
Collection
{Multipoint, COLLECTION {Point (cluster),
Line String, Multiple Line String,
Polygon, Multiple Polygon}
Polyline,
Region}
Oracle currently does not have a mechanism to check
the validity of objects. MapInfo Professional will perform Unknown or invalid geometries
or user defined.
some geometry checks. If MapInfo Professional detects
an invalid or an unknown geometry, it will return a null
object to prevent errors. No error message will display
to notify users of the null geometries.
MapInfo Professional can download some or all of an Oracle Spatial table through either a spatial query
or attribute query.
To select a Multipoint object within a region (for example, Select Object within Selection), the
first point of the Multipoint object must be within the region. Otherwise, the Select statement fails. Note:
The same rule applies to Collections containing Multipoint objects. Lines and Polygons in
Collections should work correctly.
Creating a Map Catalog in the DBMS to Work with
Data
MapInfo Professional stores information about spatial tables and views in the database. It stores this
information in a file called MAPINFO.MAPINFO_MAPCATALOG (the Map Catalog) as a special table
on the DBMS you are accessing.
177 MapInfo Professional User Guide
Chapter 7: Working with Data in a DBMS