avirisl.sml

########################################################
# avirisl.sml
#
# Within a rvc file, change descriptions of bands of 
# aviris data so each has the phrase "wavelength xxxx"
# where xxxx
# is the wavelength of that specific band.
# 
#
# NOTE: use only on a single rvc containing just the
# 224 aviris bands from band 001 to 224.  Filename and 
# object names are hard coded, so change the script for
# different files and objects.
#
# an example would be that you have imported the aviris image
# file with USER DEFINED format, then need to name the wavelengths
# for use in the hyperspectral application
#
# AUTHOR: 	      Ray L. Harris, Jr.
# 
# REQUESTED BY:
# CREATION DATE: 	March 31, 1998
# REVISION LIST: 
########################################################
clear();
string filename$ = "e:/avirisHL.rvc";

# AVIRIS has 4 detectors, so need 4 rows 5 columns
# of beginning band, ending band, beginning wavelength, ending
# wavelength, wavelength increment
# Values extracted from "A system overview of the Airborne Visible/
# Ifrared Imaging Spectrometer (AVIRIS)" 9.0 Appendix: AVIRIS 
# INSTRUMENT PARAMETERS
class MATRIX detectorMat;
raster A;

detectorMat = CreateMatrix(4,5);

#Detector 1, units in um
SetMatrixItem(detectorMat,0,0,1);
SetMatrixItem(detectorMat,0,1,31);
SetMatrixItem(detectorMat,0,2,0.41);
SetMatrixItem(detectorMat,0,3,0.70);
SetMatrixItem(detectorMat,0,4,0.0097);

#Detector 2
SetMatrixItem(detectorMat,1,0,32);
SetMatrixItem(detectorMat,1,1,95);
SetMatrixItem(detectorMat,1,2,0.68);
SetMatrixItem(detectorMat,1,3,1.27);
SetMatrixItem(detectorMat,1,4,0.0095);

#Detector 3
SetMatrixItem(detectorMat,2,0,96);
SetMatrixItem(detectorMat,2,1,160);
SetMatrixItem(detectorMat,2,2,1.25);
SetMatrixItem(detectorMat,2,3,1.86);
SetMatrixItem(detectorMat,2,4,0.0098);

#Detector 4
SetMatrixItem(detectorMat,3,0,161);
SetMatrixItem(detectorMat,3,1,224);
SetMatrixItem(detectorMat,3,2,1.84);
SetMatrixItem(detectorMat,3,3,2.45);
SetMatrixItem(detectorMat,3,4,0.0098);

#outside loop for each of the detectors
numeric r;
numeric bb, eb, firstw, ew, incrementw, wavelength;
numeric objnum, t;
string objname$, string$;
for r = 0 to 3 {
	bb = GetMatrixItem(detectorMat,r,0);
	eb =GetMatrixItem(detectorMat,r,1);
	firstw =GetMatrixItem(detectorMat,r,2);
	ew =GetMatrixItem(detectorMat,r,3);
	incrementw = GetMatrixItem(detectorMat,r,4);

	wavelength = firstw;

	#inside loop for each detectors wavelengths
	for t = bb to eb  {
		objname$ = sprintf("PG02106_1_%03i",t);

		OpenRaster(A, filename$, objname$);
		objnum = GetObjectNumber(A);
		string$ = "wavelength " + sprintf("%1.3f", wavelength); 
		print (objname$);
		print (string$);
		SetObjectDescription(filename$, objnum, string$);
		CloseRaster(A);
		wavelength = wavelength + incrementw;
		}
	}