getlineinfo draws a line using the pointer, and displays the length and
angle of the segment in the figure. The angle is in degrees by default,
(zero angle for a horizontal line).
[LEN, ANGLE, DX, DY] = getlineinfo returns the results.
... = getlineinfo(OPT) specifies the angle property: OPT = 'rad',
'deg', 'slope' or 'invslope' (default is 'deg'). OPT = 'angle' shows
only the angle.
Note: The Image Processing Toolbox is required.
See Also
getslope, showslope.
Published output in the Help browser
showdemo getlineinfo