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.