Pitney Bowes MapInfo Vertical Mapper - Manual (Page 125)

Chapter 7: Using Grids for Spatial Analysis
User Guide
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Creating and Editing Conditional Queries
The first step in creating a conditional query involves building a query expression from a selection of
open grid files as a series of individual conditional clauses. The second step involves the
assignment of values to the new grid, cell by cell, according to whether the query conditions are met
(true) or not met (false) for each set of overlying cells.
• In the Grid Manager, click the Analysis button and choose the Grid Query command.
Exploring the Enter Query Conditions Dialog Box
The Enter Query Conditions dialog box enables you to build conditional queries from one or more
input grids.
The upper window of the Enter Query Conditions dialog box lists all of the currently open grid files in
the Grid Manager. In order to create a new query, you must choose the grid entry.
The New button enables you to build a specific conditional query. You can also access this
command by highlighting the appropriate grid in the list, right-clicking, and choosing the New Clause
command from the shortcut menu. The New button opens the Select Conditions dialog box.
The Grid list enables you to select the appropriate grid file to be queried if such selection is not
made in the Grid Manager.