Line Profile Tool 
The Line Profile Tool generates a profile of the lines in a selected area.
Select the line profile tool and drag 'n' drop it onto the image viewer.
The line profile will appear. The line profile will be updated as you drag one
of the eight smaller boxes located on the rectangle. You
can change the shape and size of the area being profiled, as well
as rotate it by grabbing the small box in the middle and turning.

Right-click
on the line profile area to bring up the IPLineProfileEntity edit box, as
seen below. Selecting
the Entity
tab allows you to adjust the colors, thickness and
visibility of the line profile marker. You can also select a
Coordinate System. Make the necessary adjustments, click Apply
then Close. The values will be updated according to
your selections.

Selecting the Rectangle
tab allows you to enter specific
values for the line entity rectangle used, including center X, Y,
width, height, angle and aspect of width/height. After entering your
values, click Apply then Close. The line profile will be adjusted
according to the selections.
