#  rand bak model
#   rivierrand :
    OPEN   5= LINE(P111, P112, 'Open rand nummer   5')
    OPEN   6= LINE(P113, P114, 'Open rand nummer   6')
    OPEN   7= LINE(P115, P116, 'Open rand nummer   7')
    OPEN   8= LINE(P117, P118, 'Open rand nummer   8')
#   zeeranden
    OPEN   1= LINE(P101, P102, 'Open rand nummer   1')
    OPEN   2= LINE(P103, P104, 'Open rand nummer   2')
    OPEN   3= LINE(P105, P106, 'Open rand nummer   3')
    OPEN   4= LINE(P107, P108, 'Open rand nummer   4')