Program sfpwsmooth3 | 3-D structural-oriented smoothing using plane-wave spray and weighted stacking. 
[SYNOPSIS]
sfpwsmooth3 < inp.rsf dip=dip.rsf > out.rsf verb=n eps=0.01 ns2= ns3= bilat=n gauss=n ax= bx= order=1
[PARAMETERS]
float   | ax | = |   | 	Gaussian weight for the range distance 
bool    | bilat | =n |  [y/n] | 	if y, bilateral smoothing 
float   | bx | = |   | 	exponential weight for the domain distance 
file    | dip | = |   | 	auxiliary input file name
float   | eps | =0.01 |   | 	regularization 
bool    | gauss | =n |  [y/n] | 	if y, gaussian weight; otherwise, triangle weight 
int     | ns2 | = |   | 	spray radius (inline) 
int     | ns3 | = |   | 	spray radius (crossline) 
int     | order | =1 |   | 	accuracy order 
bool    | verb | =n |  [y/n] | 	verbosity 
[DIRECTORY]
user/yliu
