AP I - Alignment - Initalize Rings File ||

PURPOSE

Creates a "Circular Rings File" for use by 'AP MQ' or other 'AP' operations. (This is usefull for distributed parallel runs and is usually not necessary for using either 'AP' except for when there are a large number of reference images).
(See align_overview.html for comparison of 'AP' operations.)

SEE ALSO

AP MQ R	[Alignment - multi-reference, shift & rot., use rings file ||]
AP MD	[Alignment - Multi reference, rotation ||]

USAGE

.OPERATION: AP I

.ENTER TEMPLATE FOR REFERENCE IMAGES: REF***
[Give the template name of the existing file series of reference images.]

.ENTER FILE NUMBERS OR SELECTION DOC. FILE NAME: SELECTREF
[Enter numbers of reference image files. The file numbers can also be read from a selection document file where file numbers are contained in the first register (not the keys).]

.FIRST,LAST RING, & SKIP: 5,15,1
[Only rings with radii in the range 5-15 will be analyzed. If skip=0 or 1, then every ring between 5 and 15 will be taken; for skip=2, every second ring; etc.]

.REFERENCE RINGS (SCRATCH) FILE: refer_rings
[Give name for output file containing the Circular reference Rings. This file is used by 'AP MQ R' or 'AP MD', etc.]

NOTES

1. See 'AP MQ R' and 'AP MD' for further details

SUBROUTINES

APMASTER, APRINGS, NORMAS, NORMASC, ALRQ_M, ALRQ_MS, CROSRNG_MS, CROSRMG_DS, CROSRNG_DS, FRNG, FRNGS, APPLYWS, ALRQS, PARABLD, RINGWE

CALLER

UTIL4