Pitney Bowes MapInfo Vertical Mapper - Manual (Page 131)

Chapter 7: Using Grids for Spatial Analysis
User Guide
129
Creating a Cross Section
You can create a query of grid values along a line or polyline constructed in a Map window using the
Cross Section command. The values are displayed as an x, y line plot in a graph window.
1. On the Vertical Mapper toolbar, click the Cross Section button.
2. Draw the line of the cross section directly on the grid image, then double-click to end the line.
Note You can also create a line of cross section on a selected line or polyline by clicking the
Analysis button in the Grid Manager, and then choosing the Cross Section command.
Exploring the Cross Section Dialog Box
The Graph window in the Cross Section dialog box contains a number of settings that control display
and handling of the graph and legend. The Graph window shows separate plots for all spatially
coincident active grids opened in the Grid Manager when grids of different units are encountered.
The Graph window has a limitation of six different graphs; however, there is no limit to the number of
grids that can be plotted in the same graph.
The distance chart located at the bottom of the Graph window displays three categories of
information: the sample number, the horizontal distance, and the true horizontal distance.
The Sample No. identifies each sample taken from the grids along the transect line that was chosen
or drawn with the Cross Section tool. The number of samples is defined by the Cross Section
Samples setting in the Preferences dialog box.