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functions in std.i - z

 
 
 
zncen


             zncen(ptcen)  
          or zncen(ptcen, ireg)  
 
     returns zone centered version of the 2-D point centered array PTCEN.  
     The result is (imax-1)-by-(jmax-1) if PTCEN is imax-by-jmax.  
     If the region number array IREG is specified, zones with region  
     number 0 are not included in the point centering operation.  
     Note that IREG should have dimensions imax-by-jmax, like  
     the input PTCEN array; the first row and column of IREG are ignored.  
     Without IREG, zncen(ptcen) is equivalent to ptcen(zcen,zcen).  
interpreted function, defined at i0/std.i   line 2879  
SEE ALSO: ptcen,   uncen