trimang Documentation

trimang - Trim input image by an angular amount
Programmer:  Tammy Becker, U.S.G.S., Flagstaff
This procedure executes both photompr and photom to trim an input image
by an angular amount.  The user can trim the image some angular amount,
with the parameter TRIMANG, from a given central point, parameters CLAT
and CLON.   The image can be trimmed relative to emission angle or
incidence angle with parameters EMA or INC, and leaving TRIMANG at the
default of 180 degrees.

Input file name

NONE

Output file name

NONE

Incidence angle boundary

89.0

Emission angle boundary

89.0

Amount to trim (degrees)

Latitude of center of trim

0.0

Longitude of center of trim

0.0

ADDITIONAL NOTES:

Parm	Description
FROM	Filename of input cube. The input cube can be in any map projection. Acceptable bit type: type=1 (8bit) or type=2 (16bit).
TO	Filename of the output cube. Will remain the same bittype as input cube.
INC	INC is used as an incidence angle boundary. For any pixel point of the input cube that is greater than INC, it is set to zero, "cut-off". This effects the terminator of the planet in the cube. The value should not be set above 90 degrees.
EMA	EMA is used as an incidence angle boundary. For any pixel point of the input cube that is greater than EMA, it is set to zero, "cut-off". This effects the limb of the planet in the cube. The value should not be set above 90 degrees.
TRIMANG	The user specified angular amount to trim the input image.
CLAT	Center latitude point from which to trim.
CLON	Center longitude point from which to trim.