RT B - RoTate - image or volume, supply Background, bilinear interpolation

(3/11/96)

PURPOSE

Rotates an image or slices from a volume counter-clockwise around the center (NX/2 + 1, NY/2 + 1), Negative angles are rotated clockwise. The background rotated into the image field is specified.
OBSOLETE! USE 'ROT' INSTEAD!   Example.

SEE ALSO

ROT [ROTate image/volume around center by specified angle(s)]
RT 90 [RoTate - image or volume, by 90, 180, or 270 degrees]
RT SQ [Rotate and Shift - image, Quadratic interpolation ||]
RT SF [Rotate and Shift - image, Fourier based spline interpolation ||]

USAGE

.OPERATION: RT B

.INPUT FILE: PIC001
[Enter the name of the file to be rotated.]

.OUTPUT FILE: IMG045
[Enter the name of the file where the rotated image is to be kept.]

.ROTATION ANGLE: 90.0
[Enter the rotation angle in degrees.]

[PIC001 will then be rotated 90 degrees, and the rotated image put in IMG045.]

.BACKGROUND VALUE: 1.2
[Enter the desired background constant to be used.]

NOTES

  1. The input file may be three-dimensional. In this case, each of the slices is separately rotated around the z-axis, and stored in the output file which will be created with the same dimensions.

SUBROUTINES

ROT32

CALLER

UTIL3

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