CDLANDB

Description

CDLANDB reads LANDSAT TM imagery from a Brazilian CEOS format CD when satellite orthorectification is required. CDLANDB automatically creates a PCIDSK file, reads all the requested imagery channels from CD, and saves the satellite path information in a segment. The output file from CDLANDB is used as input to SATMODEL and ORTHO.

Parameters

Name	Type	Caption	Length	Value range
CDDIR*	String	CD Directory	1 - 192
FILE*	String	Output file name	1 - 192
CDIC*	Integer	CD Input channel(s)	1 - 16
TEX1	String	Descriptive text	0 - 64
REPORT	String	Report mode	0 - 192	Quick links

* Required parameter

Parameter descriptions

CDDIR

Specifies the name of the CD directory that contains all input files.

FILE

Specifies the name of the PCIDSK file that will receive the processed data. This file is automatically created and must not already exist.

CDIC

Specifies the list of channels or layers to read from the CD. Up to 16 channels may be specified.

For each channel, a corresponding channel is created in the output PCIDSK file. Duplicate channels are not allowed.

If this parameter is not specified, all channels will be read from the file.

Ranges of channels or segments can be specified with negative values. For example, {1,-4,10} is internally expanded to {1,2,3,4,10}. When you are not specifying a range in this way, only 48 numbers can be specified explicitly.

TEX1

Optionally specifies a line of text that describes the file. Typically, this contains information that identifies the location of the data and the CD reference number.

If TEX1 (File Description) is not specified, the File Header fields in the generated output PCIDSK image database hold the following information:

• FH5 receives the tape ID, satellite sensor, and satellite track
• FH7.1 receives the acquisition date and scene center (longitude and latitude, in decimal degrees)
• FH7.2 is empty

REPORT

Specifies where to direct the generated report.

Available options are:

• TERM: generates a report on the terminal (default)
• DISK: generates a report on file "IMPRPT.LST"
• OFF: turns off report generation
• <filename>: appends a report to the specified file

Details

CDLANDB is part of the satellite orthorectification component. It reads a Brazilian LANDSAT TM CEOS format CD when satellite orthorectification is required. CDLANDB automatically creates a PCIDSK file, reads all the requested imagery channels from the CD, and saves the satellite path information to a segment. Output from CDLANDB is used with SATMODEL and ORTHO.

The FILE parameter specifies the name of the PCIDSK file that holds the imagery and orbital information obtained from the CD. This file is automatically created with the dimensions required to hold all of the requested data. Sufficient disk space is required before running CDLANDB.

Example

EASI>CDDIR="/cdrom/221_081/"     ! for UNIX machine
EASI>CDDIR="D:\221_081\          ! for PC 
EASI>CDDIR="[ABC.221_081]"       ! for VMS machine
EASI>FILE="tm.pix"
EASI>CDIC=3,4,5
EASI>TEX1="Brazil"
EASI>REPORT="tm.txt"
EASI>MONITOR=                            ! defaults to ON

EASI>R CDLANDB

References

Toutin, Th. "Analyse math\u00c3\u00a9matique des possibilit\u00c3\u00a9s cartographiques du syst\u00c3\u00a8me SPOT". Th\u00c3\u00a8se de Docteur-Ing\u00c3\u00a9nieur en Sciences G\u00c3\u00a9od\u00c3\u00a9siques, ENSG, Paris, France, 1985. pp1 -163.

Toutin, Th. and Carbonneau Y. "La multi-st\u00c3\u00a9r\u00c3\u00a9oscopie pour les corrections d'images SPOT-HRV", Canadian Journal of Remote Sensing, Vol. 15, No. 2 (September 1989) p110. (Also available in English from the Canada Centre for Remote Sensing.)