ISIS Application Documentation
This program will apply a chosen function to the input cube
Overview
Parameters
Example 1
Description
This program will apply the chosen function to the input cube.
The following functions with their corresponding restrictions are available:
NOTE: Trig functions requiring angles as the input must be in radians.
FUNCTION RESTRICTIONS
cos (x)
sin (x)
tan (x) x cannot equal: 90, 270, -90, -270,
pi/2, 3pi/2, -pi/2, -3pi/2
arccos(x) -1.0 < x < 1.0
arcsin(x) -1.0 < x < 1.0
arctan(x)
1.0 / x x cannot equal 0.
sqrt (x) x must be greater than or equal to 0.
10 ^ x
e ^ x
x ^ y x is the input cube, y is an input constant
log (x) x > 0
ln (x) x > 0
abs(x)
Categories
Applications
History
Tracie Sucharski 2002-10-18
Original version
Tracie Sucharski 2002-10-29
If input pixel is a special pixel, output the input value instead
of the NULL value.
K Teal Thompson 2002-11-22
Add example.
Tracie Sucharski 2003-01-28
Removed from Utility category.
K Teal Thompson 2003-02-03
Make images smaller. Move "constants" group below "functions" group.
Tracie Sucharski 2003-04-03
Added to liens:
1. Add degree and radian radio buttons.
2. Move constants group below functions goup.
Stuart Sides 2003-04-04
Fixed problem with isiscvs not checking in the thumb and image directories.
Stuart Sides 2003-05-16
Modified schema location from astogeology... to isis.astrogeology..."
Stuart Sides 2003-07-29
Modified filename parameters to be cube parameters where necessary
Tracie Sucharski 2004-07-16
Add error checking for cos/sin function. Print number invalid input pixels.
Brendan George 2006-09-28
Documentation fixes
Brendan George 2007-01-09
Fixed appTest
Steven Lambright 2007-08-21
Fixed output to contain valid pvl
Parameter Groups
Files
Name
Description
FROM
Input file (X value)
TO
Output file
Functions
Name
Description
FUNCTION Function to apply to input cube
Constants
Name
Description
Y y value for XTOY function
Files :
FROM
Description
Cube that is used as input to chosen function (x value).
NOTE: For trig functions requiring angles, input must be in radians.
Type
cube
File Mode
input
Filter
*.cub
Files :
TO
Description
Cube containing the result of the function.
Type
cube
File Mode
output
Pixel Type
real
Filter
*.cub
Functions :
FUNCTION
Description
This indicates the function to apply to the input cube.
Type
string
Default
COS
Option List:
Option
Brief
Description
COS cosine
Apply the cosine function to the input pixel (x).
X must be in radians.
Exclusions
SIN sine
Apply the sine function to the input pixel (x).
x must be in radians.
Exclusions
TAN tangent
Apply the tangent function to the input pixel (x).
x cannot equal: pi/2, 3pi/2, -pi/2, -3p/2, and must be
in radians.
Exclusions
ACOS arc cosine
Apply the arc cosine function to the input pixel (x).
x must be in radians and between -1.0 and 1.0.
Exclusions
ASIN arc sine
Apply the arc sine function to the input pixel (x).
x must be in radians and between -1.0 and 1.0.
Exclusions
ATAN arc tan
Apply the arc tangent function to the input pixel.
Exclusions
INV inverse
Apply the inverse function, 1/x, to the input cube.
(x > 0.)
Exclusions
SQRT square root
Take the square root of the input pixel (x).
(x > 0.)
Exclusions
POW10 Power of 10
Take 10 to the power of x (x=input pixel)
Exclusions
EXP exponent
Take e to the x (x=input pixel)
e = 2.7182818284590452353602874713526
Exclusions
XTOY x ^ y
Calculate x (FROM) to the power of y.
Inclusions
LOG10 Log base 10(x)
Calculate the log 10 of the input pixel (x).
(x > 0.)
Exclusions
LN Natural log(x)
Calculate the natural log of the input pixel (x).
(x > 0.)
Exclusions
ABS Absolute value(x)
Calculate the absolute value of the input pixel (x).
Exclusions
Constants :
Y
Description
y value which is only used when FUNCTION=XTOY.
Example 1
X to Y
Description
This example shows the use of the "x to y" function.
Command Line
cubefunc fr=../IN/9700r.cub t=OUT/cubefunc fu=xtoy y=3
You have to use "fr" for the FROM parameter because the parameter FUNCTION starts with an "f", also.
GUI Screenshot
Cubefunc Gui
Example Gui
Screenshot of GUI with parameters filled in to perform
a cubefunc operation on the input image.
Input Image
Input Io image
Input image for cubefunc
Parameter Name:
FROM
This is the input image for the cubefunc example.
Output Image
Output image showing results of cubefunc using the X to Y function.
Output image for cubefunc
Parameter Name:
TO
This is the "X to Y" output image that results.
