I'm trying to apply sumigfd on simple.su data which is used in the John Stockwell course in geophysical image processing - in the Migration chapter on page 85. I have not had any success because the vfile was not set up well. Even when I created a new vfile the problem persisits.

surange < simple.su

80 traces:

tracl    1 80 (1 - 80)
cdp      1 80 (1 - 80)
trid     1
ns       501
dt       4000

After this information I created a vfile using the instructions,

 makevel nx=80 nz=501 > cr
 transp < cr n1=80 > ce

closed as unclear what you're asking by Way of the Geophysicist, Gimelist, Fred, Christoph, gansub Apr 22 '16 at 9:38

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