It will be useful to have a list of the images stored on the disk. The command:
CREATE/ICAT mycat *.bdf
creates a catalog stored on the disk as the file mycat.cat which contains the list of all images present on the disk. It is better to enable this catalog for automatic use by all other commands using:
SET/ICAT mycat
which allows in any command to refer to a catalog image by the simplified syntax #n where n is the entry number of the image in the catalog.
The following commands are also useful:
READ/ICAT mycat
lists the contents of an image catalog.
PRINT/ICAT mycat
prints the contents of an image catalog on the default printer. See command ASSIGN/PRINT to change the default.
COMPUTE/IMAGE out = expression
performs arithmetic on images, for example:
COMPUTE/IMAGE out = img1 - img2
computes the difference of images img1.bdf and img2.bdf and stores the result in out.bdf.
STATIST/IMA frame
performs statistic on an image. It is possible to select a sub-window in interactive mode or direct mode.
STATIST/IMA frame CURSOR
STATIST/IMA frame area_spec
The following commands are related to graphic facilities:
PLOT/IMAGE, OVERPLOT/IMAGE
PLOT/TABLE, OVERPLOT/TABLE
GET/GCURSOR
SEND/PLOT, ASSIGN/PLOT
It is also useful to handle tables, using commands:
READ/TABLE table [column]
SELECT/TABLE table conditional_expression
STATIST/TABLE table column
COMPUTE/TABLE table out_column = expression