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EF - Extract Fourier

(12/15/89)

PURPOSE

Extracts central section from 3-D Fourier under arbitrary angles.

USAGE

.OPERATION: EF

.INPUT FILE: VOL001
[Enter name of 3-D Fourier file.]

.OUTPUT FILE: FOU001
[Enter name of file where 2-D Fourier is to be put.]

.AZIMUTH (PHI): 45.
[Enter azimuth angle, in degrees, between KX axis and tilting axis.]

.INCLINATION (THETA): 60.
[Enter angle, in degrees, between KZ=0 plane and central section to be extracted.]

NOTES

  1. When PHI=0, THETA=0 is specified, the KZ=0 plane is extracted.

  2. A three-dimensional bi-linear interpolation is used in Fourier space. The result makes sense only if Fourier components are dependent within at least one Fourier unit radius.

  3. THIS ROUTINE IS NO LONGER SUPPORTED AND MAY NOT WORK AS DOCUMENTED!!!!!!!!!!!

SUBROUTINES

CSECT

CALLER

NONE

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