Pitney Bowes MapInfo Vertical Mapper - Manual (Page 98)

Using the Grid Info Tool
96
Vertical Mapper 3.7
Using the Grid Info Tool
The Grid Info tool enables you to query and return grid values from selected locations in the grid file
and view the results in a Grid Info dialog box. If more than one grid is open and active, values will be
returned from each one.
Only grid information from those grids that are active in the Grid Manager and are in the same
geographic location as the point being inspected are displayed. The grid files being inspected do not
have to be layers in the current Map window. The Grid Info tool simply examines the x- and y-
coordinates of the location being inspected and returns the information from those active grids in the
Grid Manager that are geographically coincident. If you need to inspect a large number of predefined
points, you can use the Point Inspection function. For more information, see
The Point Inspection
Function on page 130 .
1. On the Vertical Mapper toolbar, click the Grid Info button.
2. Click in the Map window.
Note You can choose whether or not values are interpolated within cells by enabling or clearing the
Use Closest Node Value check box on the z-units tab in the Grid Manager. For more
information, see
Working with the Grid Manager on page 91 .
Exploring the Grid Info Dialog Box
The Grid Info dialog box displays the cursor location as well as information about all open and active
grids at that location, including the grid file name, grid cell value, the data unit (if available), and the
data description (if available). You can sort the information either alphabetically or numerically, in
ascending or descending order, by clicking the button with the column name Grid, Value, Unit, or
Data Description. When sorting, an arrow appears that indicates the direction of the sort. When the
arrow is not visible, the grids will be placed in the same order as they appear in the Grid Manager.
You can resize a column to the length of the longest item in that column by double-clicking on the
divider to the right of the column.
The Capture Data check box enables you to create a new MapInfo table called vmCapture to
automatically store the results of all inspections. vmCapture is automatically opened in a Browser
window when you choose this option.