Pitney Bowes MapInfo Vertical Mapper - Manual (Page 128)

Understanding Grid Queries
126
Vertical Mapper 3.7
The Output Format section enables you to choose the format of the output grid. You can choose a
numeric grid file where each cell in the grid is assigned a numeric value or a classified grid file where
each cell in the grid is assigned a character-based value.
The When True section contains the following options:
• The Use Value option assigns a specific value to each TRUE cell in the new grid that is user-
defined and entered into the edit box.
• The Get Value From option assigns a value/class to all TRUE cells in the new grid. The
value/class given to each TRUE cell in the new grid corresponds to the same cell value/class
in the specified grid. This option applies to a specified grid chosen from a list of all currently
open files.
• The Use Null option assigns null values to all TRUE cells in the new grid.
Note A cell returns a “TRUE” value when it meets all WHERE conditions.
The When False section contains the following options:
• The Use Value option assigns a specific value to each FALSE cell that is user-defined and
entered into the edit box.
• The Get Value From option assigns a value/class to all FALSE cells in the new grid. The
value/class given to each FALSE cell in the new grid corresponds to the same cell
value/class in the specified grid. The Use Null option assigns null values to all FALSE cells in
the new grid.
Note A cell returns a “FALSE” value when it does not meet all WHERE conditions
The File name box enables you to enter a file name for the new grid.
The Back button enables you to return to the previous dialog box and make modifications.
The Finish button enables you to complete the grid creating process. Once the grid file is created, it
opens in a Map window with a default colour palette applied.