ISIS 3 Application Documentation
Converts NAIF DSK plate model to ISIS format
Description
This application will convert a NAIF DSK plate model to an ISIS cube.
Users must provide a valid map file to use for allocation of the ISIS
cube. The scale and type of projection determine the size of the output
cube.
Categories
History
| Kris Becker | 2014-02-19 |
Original Version
|
| Jeannie Backer | 2015-03-08 |
Wrote tests. Added application to ISIS trunk. References #2035
|
| Kris Becker | 2015-03-11 |
Process data tiles instead of a pixel at a time; Test for
valid output map coordinate at every map pixel. References #2035
|
|
Parameter Groups
Files
|
Name
|
Description
|
| FROM | Name of NAIF DSK DEM file |
| MAP | Name of file containing map description |
| TO |
Output cube
|
| METHOD |
DEM intersection method used
|
|
Files:
FROM
Description
This parameter provides the name of the NAIF DSK file to convert to
ISIS format. It is assumed to be in body fixed coordinates from which
intersections for each output map grid point will be computed using
NAIF's DSK toolkit.
|
Type
| filename |
|
File Mode
| input |
|
Filter
|
*.bds
|
Files:
MAP
Description
This paramter provides the name of a file containing a valid map
projection defintion. One can use the ISIS maptemplate application
to create a map template.
|
Type
| filename |
|
File Mode
| input |
|
Filter
|
*.map
|
Files:
TO
Description
Name of the output ISIS file created by this application containing
the rendering of the DSK DEM into and ISIS compatible DEM for use in
the ISIS system.
|
Type
| cube |
|
File Mode
| output |
|
Pixel Type
| real |
Files:
METHOD
Description
This parameter provides two different methods to compute the
output radius value for a given latitude, longitude map grid
point.
|
Type
| string |
|
Default
| RAY |
|
Option List:
|
|
Option |
Brief |
Description |
| RAY |
Ray intersection from image pixel location to DEM
|
Calculates an intercept location on the (irregularly
shaped) body from the observer point (i.e., image pixel
location) and look (or ray) direction
|
| GRID |
Calculate using surface point latitude, longitude grid
point
|
The radius value of the DEM is determined at the
intercept point of the triaxial ellipsoid from the
center of the body. This method extends the surface (x,
y, z) body fixed coordinate of the ellisoid by
extending the vector by a factor of 1.5. This creates
the obsever point. The direction vector is then the
negation of the observer point. From this, a DEM
surface intercept point is determined.
|
|