program evolvopick

  use spitpgm
  use points3d 
  use fraktals

!-----------------------------------------------------

  implicit none

  double precision, dimension(4)    ::  KA, KB, KI
  integer                           ::  tick, nbsteps
  double precision                  ::  dptick
  type(t_point3d), dimension(:), allocatable ::  points
  integer                                    ::  nbpoints
  integer                                    ::  errcode
  character (len=200)                        ::  command

  KA(1) = 2.24     ;     KA(2) = 0.43
  KA(3) = -0.65    ;     KA(4) = -2.43
  KB(1) = 1.11     ;     KB(2) = 0.22
  KB(3) = 1.65     ;     KB(4) = -1.43

  nbsteps  = 1199
  nbpoints = 26000
  allocate(points(nbpoints), stat=errcode)
  if (0 .NE. errcode) then
    STOP " : EVOLVOPICK, NO ENOUGH MEMORY"
  endif

  do tick = 0, nbsteps

    dptick = DBLE(tick) / DBLE(nbsteps)
    ! print *, tick, "      ", dptick
    call interp4dp(KA, KB, KI, dptick)
    ! print *, KI(1), KI(2), KI(3), KI(4)
    write(0, '(1X, I8, 3X, 4F12.6)') tick, KI

    call compute_pickover(points, KI)
    call write_points3d(points, 7, 25990, 'WS/pick.dat')

    write(command, '(A, I6)') './tracepick.sh ', tick
    call execute_command_line (command, exitstat=errcode)
    if (0 .NE. errcode) then
      STOP ' : ERR RUN COMMAND !'
    endif

  enddo

!-----------------------------------------------------

  contains

  subroutine interp4dp (ina, inb, out, dpk)
    double precision, dimension(4), intent(in)   :: ina, inb
    double precision, dimension(4), intent(out)  :: out
    double precision, intent(in)                 :: dpk
    integer                                      :: foo

    do foo=1, 4
      out(foo) = (ina(foo) * (1.0-dpk)) + (inb(foo) * (dpk))
    enddo

  end subroutine



end program evolvopick