Use this procedure to read AIRSAR and TOPSAR header information used by other AIRSAR procedures. The procedure returns a value of 1 if the specified file is an AIRSAR file. Otherwise, it returns a value of 0. You can view more AIRSAR information by setting optional keywords.
Syntax
ENVI_DOIT, 'AIRSAR_HEADER_DOIT' [, BAND={0 | 1 | 2}], FILENAME=string [, GENFAC=variable], NAME=string [, NL=variable] [, NS=variable] [, OFFSET=variable]
Keywords
BAND (optional)
Use this keyword to specify a named variable that contains the band number for the file specified by FILENAME. Set BAND to 0, 1, or 2 to specify C, L, or P, respectively.
FILENAME
Use this keyword to specify the filename of the AIRSAR file.
GENFAC (optional)
Use this keyword to specify a named variable that contains the COMP SCALE FACTOR for the band.
NAME
Use this keyword to specify an AIRSAR filename.
NL (optional)
Use this keyword to specify a named variable that contains the number of lines in the AIRSAR image.
NS (optional)
Use this keyword to specify a named variable that contains the number of samples per line in the AIRSAR image.
OFFSET (optional)
Use this keyword to specify a named variable that contains the offset for the file specified by FILENAME.
API Version
4.2