NAME

OFF2ANG - Conversion from offset to angle and back


SYNOPSIS

OFF2ANG par=parfile.P < input.H > output.H


INPUT PARAMETERS

inverse=.false. (logical)
      Whether to do forward (offset to  angle) 
                 or inverse ( angle to offset) transformation
maxmem=100. (real)
      Maximum in-core memory (in Mbytes)
eps=1.0 (real)
      Epsilon parameter used by the radial trace transform
push=.false. (logical)
      push=.false. means pull transformation
verb=.false. (verb)
      Verbose execution
nzpad=n1 (int)
      Pading on the depth axis


DESCRIPTION

 Conversion from angle to offset and back.
 Uses radial trace transforms in the Fourier domain.
 Theory in Sava & Fomel(2000) - SEP103
 real input/output
  forward transformation
  input  is z-hx-hy-mx-my(-ro)
  output is z-ax-ay-mx-my(-ro)
  inverse transformation
  input  is z-ax-ay-mx-my(-ro)
  output is z-hx-hy-mx-my(-ro)


KEYWORDS

  angle-domain, wave-equation


CATEGORY

seis/image