This function allows the user to measure section line length. After selecting the function, the program will pop up the dialog box as shown in Figure 5.1.15.
Figure 5.1.15 Select section dialog window
CURSOR LOCATION
Select two points of the section line by cursor, and then the length of
line segment will be displayed in the message prompt area.
LINE
Select a section line by cursor, and then the length of section line
will be displayed in the message prompt area.
REJECT LAST
If selecting the point through Cursor Location function, the first
selected point can be canceled by clicking this option.