USGS

Isis 2 Documentation


genapdat Documentation

genapdat - Generates a priori data for a randlsq solution.
This perl script generates a complete RAND point, pole, and picture
file from a target definition file ($ISISDATA/targets), a matchpoint
file, and a list of images. The point, pole, and picture file contains
data based on the camera angles in the images, including lev1torand
results. A randlsq solution will read these in and optimize them.

PROGRAMMER: Ben Atkin

ParmDescriptionDefault
MATFROM
qmatch pixel measurement file
NONE
FROMLIST
List of image filenames
NONE
OUTFILE
Output file (a priori data)
NONE
TARGDEF
Target Definition File
NONE
USEPLAN
Use planet angles?
NO
LONGDIR
Longitude Direction
--
DTMFILE
DTM Cube file
--

ADDITIONAL NOTES:

ParmDescription
MATFROM
Pixel measurement data. Coordinates will be used to
estimate lat/lon points.
FROMLIST
List of image filenames. May have paths relative to the
current directory, or absolute paths.
RANDTO
Output file. After program is run, this will contain a
priori data to be used as input to randlsq.
TARGDEF
The target definition file (e. g.
$ISISDATA/targets/mars.def.4). Files for many target
bodies can be found in $ISISDATA/targets.
USEPLAN
If this option is set to "NO" (the default), the fourth
line of the image data (lev1torand output) will be
dropped. The fourth line contains planet angles and is
usually only used when working with images of the moon
(due to the moon's unusual rotation caused by the shape
of the Earth).
LONGDIR
The positive longitude direction. EAST and WEST are
the options, and LONGDIR can also be null. If null,
lev1matcherr will use the positive longitude direction
in the image labels.
DTMFILE
An optional ISIS level 2 cube file, where each DN value
represents the local radius for the point at that location.
This file is used to compute the radius of the planet/body
at the corresponding match point location.

Last updated: Sep 12 2005
File: pdfs2.html

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