Pitney Bowes MapInfo Professional - Manual (Page 81)

The structure of each seamless layer includes the path name of each base table plus a description that
defaults to the table name (alias). To view the table structure, turn the seamless layer off and display
the seamless table in a Browser. Refer to
Turning Seamless Layers On and Off .
Characteristics of a Seamless Layer
Since a seamless layer is actually made up of several base tables, MapInfo Professional does treat it a
little differently than a regular MapInfo Professional table. You can use the following MapInfo Professional
features with a seamless map layer:
• Layer Control. Use any of the functions except Thematic Mapping from the Layer Control window on
your seamless layer. Add, remove, or reorder layers or set display, zoom layering or label options for
the seamless layer (all base tables) at one time. However, you cannot make a seamless layer editable.
• Info Tool. Retrieve information about a particular object in a base table.
• Select Tools. Select objects from the seamless layer. You can only select a group of objects if they
reside in the same base table. Press the Shift key while clicking the Select button to do so. If you
attempt to select several objects that reside in different base tables, MapInfo Professional will only
select objects in one base table. If you use the Marquee or Radius select buttons and the selected
area spreads across two different base tables, MapInfo Professional selects the objects in the center
of the circle or polygon.
• Browser Table. Display a Browser window of a particular seamless table. You will be prompted to
select a base table.
• For more information, see Creating/Compiling a Seamless Layer in the Help System.
• For more about Seamless Layers in general, see the MapInfo Professional Help System.
The Help System contains these related topics:
• SExperimenting with a Seamless Layer
• SSpecifying Search Paths for Component Tables of a Seamless Layer
• STurning Seamless Layers On and Off
Experimenting with a Seamless Layer
Open a seamless layer, click Layer Control to display the Layer Control window.
81 MapInfo Professional User Guide
Chapter 3: The Basics of MapInfo Professional