Help for TRANSECT

PURPOSE:
     TRANSECT is a program for plotting the values along a line within an
image. The user specifies the line and sample coordinates for the end points
of the line, and the DN's are plotted as a function of distance (in pixels)
from the starting point. The user may also designate the band (if multichannel
data), the limits of the y axis, and a title to be placed on the printed plot,
if generated.
     TRANSECT does no interpolation to arrive at the values it plots. If
the transect is mostly horizontal in the image, a value is taken at each
sample, using the nearest line. For the more vertical transects, a value is
taken at each line, using the nearest sample.