This GRASS module calculates the spectral resonse for raster images at a user specified point (by mouse). Requirement: gnuplot has to be in PATH. Example: Input: tm1 - tm7 ... will display the spectral response in a diagram for each band at the specified location. Written by Markus Neteler 18. August 1998 neteler@geog.uni-hannover.de bugfix: 25. Nov. 98 (coordinate system labels) update to 5.7: Okt 30 21:34:00 UTC 2003 MN