NAME

createhelix - create a helix filter


SYNOPSIS

aa=createhelix(nd,center,gap,na)


INPUT PARAMETERS

nd - integer(:)
      size of data
center - integer(:)
      location of the 1 of the filter within na box
gap - integer(:)
      distance along each axis before filter coef
na - integer(:)
      size of box around filter


RETURN VALUE

aa - type(filter)
      Helix filter


DESCRIPTION

Create helix filter


SEE ALSO

the createnhelix manpage,the helix manpage,the createmshelix manpage


LIBRARY

geef90