USGS

Isis 2 Documentation


lev1pt Documentation

lev1pt - Generate geometric information for a point in a cube
This program generates geometric information for a single sample/line
or lat/lon position in a cube or list of cube files.  The information
listed includes the following geometric parameters:

        Sample
        Line
	Latitude
	Longitude
	Sample Resolution (KM)
	Line Resolution (KM)
        Aspect Ratio
	Phase Angle
	Incidence Angle
	Emission Angle
	North Azimuth Angle

The North Azimuth Angle is the clock-wise angle from an imaginary
three o'clock axis with the origin at the center of the pixel.

The program can operate on a single cube using the FROM parameter, in
which case the information is output to the log file (i.e., print.prt)
and the terminal screen.

Or, a FROMLIST can be specified, in which case a list of cubes is
expected to be in the file and the information will be output in ascii
to the file specified by the TO parameter.

The format for TO file is one line for each cube which ran successfully,
where each line contains the following values separated by spaces:

        sample
        line
	latitude
	longitude
	sample resolution
	line resolution
        aspect ratio
	phase angle
	incidence angle
	emission angle
	north azimuth
	filename

In addition, a TOERR file can be generated which will contain a list of
cubes that failed.

Programmer: Debbie A. Cook, U.S.G.S., Flagstaff, AZ


ParmDescriptionDefault
FROM
Input cube file name
  (default extension is .cub)

OR

--
FROMLIST
File containing a list of cubes
--
TO
ASCII file to write information
--
TOERR
List of unsuccessful cubes
--
SAMP
Sample position in cube(s)
--
LINE
Line position in cube(s)

OR

--
LAT
Latitude of position in cube(s)
--
LON
Longitude of position in cube(s)
--

ADDITIONAL NOTES:

ParmDescription
FROM
Input cube file name.  If the file extension is omitted,
then ".cub" will be assumed.  You can't use FROMLIST
if you use this parameter.
FROMLIST
A file containing a list of cubes which will all
be processed.  You can't use FROM if you use this
parameter and you must specify TO.
TO
A file which will contain the output information for
the cube(s).  This parameter must be specified when
a FROMLIST is entered.  Type help * to find out about
the format of the TO file.
TOERR
A file which will contain the cubes in FROMLIST which
failed.
SAMP
The sample position in the file(s) to describe.  If
SAMP, LINE, LAT, and LON are defaulted, the center
of the image will be described.
LINE
The line position in the file(s) to describe.  See
SAMP for the default.
LAT
The latitude position to describe.  See SAMP for the
default.
LON
The longitude position to describe.  See LINE for the
default.

Last updated: Jan 31 2005
File: pdfs2.html

Contact us online at the Isis Support Center: http://isisdist.wr.usgs.gov

ISIS Documentation Home Page