NAME

Vconvert - Convert from one type of velocity to another


DESCRIPTION

Convert one type of velocity function to another


INPUT PARAMETERS

n1out - int
       Output fast axis; only can change if outpar != inpar.
d1out - float
       Ignored if outpar = inpar.
o1out - float
       see above
label1 - char*
       see above
oversamp- int
       [1]oversampling rate (default is no oversampling)
lsinc - int
       [12]oversampling interpolator length
       oversampling used with inpar != outpar only.
alpha - float
       [0.01]  fraction of peak value at ends of gaussian taper
        on sinc interpolator for oversampling
invelopt- int
       [1] velocity
outvelopt- int
       [2] slowness
       3- slowness squared
       4- velocity squared
intype -int
       [1] interval
outtype -int
       [2] rms
inpar -int
       [1] function of time
outpar -int
       [2] function of depth


COMMENTS

  NOTE: Vrms(z) [type=2 and par=2] is not understood by this routine.
  NOTE: oversampling may improve v(z)<=>v(t) conversion if velocity
        field contains high wavenumber components.  It can introduce
        spurious high wavenumber jitter if the velocity field is smooth.
        Decreasing alpha may help.  Use with caution!


CATEGORY

seis/velan