subroutine map
      implicit real*8 (a-h,o-z)
      include 'DIMENSIONS'
      include 'COMMON.MAP'
      include 'COMMON.VAR'
      include 'COMMON.GEO'
      include 'COMMON.DERIV'
      include 'COMMON.IOUNITS'
      include 'COMMON.NAMES'
      include 'COMMON.CONTROL'
      include 'COMMON.TORCNSTR'
      double precision energia(0:n_ene)
      character*5 angid(4) /'PHI','THETA','ALPHA','OMEGA'/
      double precision ang_list(10)
      double precision g(maxvar),x(maxvar)
      integer nn(10)
      write (iout,'(a,i3,a)')'Energy map constructed in the following ',
     &       nmap,' groups of variables:'
      do i=1,nmap
        write (iout,'(2a,i3,a,i3)') angid(kang(i)),' of residues ',
     &   res1(i),' to ',res2(i)
      enddo
      nmax=nstep(1)
      do i=2,nmap
        if (nmax.lt.nstep(i)) nmax=nstep(i)
      enddo
      ntot=nmax**nmap
      iii=0
      write (istat,'(1h#,a14,29a15)') (" ",k=1,nmap),
     &    (ename(print_order(k)),k=1,nprint_ene),"ETOT","GNORM"
      do i=0,ntot-1
        ii=i
        do j=1,nmap
          nn(j)=mod(ii,nmax)+1
          ii=ii/nmax
        enddo
        do j=1,nmap
          if (nn(j).gt.nstep(j)) goto 10
        enddo
        iii=iii+1
Cd      write (iout,*) i,iii,(nn(j),j=1,nmap)
        do j=1,nmap
          ang_list(j)=ang_from(j)
     &       +(nn(j)-1)*(ang_to(j)-ang_from(j))/nstep(j)
          do k=res1(j),res2(j)
            goto (1,2,3,4), kang(j)
    1       phi(k)=deg2rad*ang_list(j)
            if (minim) phi0(k-res1(j)+1)=deg2rad*ang_list(j)
            goto 5
    2       theta(k)=deg2rad*ang_list(j)
            goto 5
    3       alph(k)=deg2rad*ang_list(j)
            goto 5
    4       omeg(k)=deg2rad*ang_list(j)
    5       continue
          enddo ! k
        enddo ! j
        call chainbuild
        if (minim) then 
         call geom_to_var(nvar,x)
         call minimize(etot,x,iretcode,nfun)
         print *,'SUMSL return code is',iretcode,' eval ',nfun
c         call intout
        else
         call zerograd
         call geom_to_var(nvar,x)
        endif
         call etotal(energia(0))
         etot = energia(0)
         nf=1
         nfl=3
         call gradient(nvar,x,nf,g,uiparm,urparm,fdum)
         gnorm=0.0d0
         do k=1,nvar
           gnorm=gnorm+g(k)**2
         enddo
        etot=energia(0)

        gnorm=dsqrt(gnorm)
c        write (iout,'(6(1pe15.5))') (ang_list(k),k=1,nmap),etot,gnorm
        write (istat,'(30e15.5)') (ang_list(k),k=1,nmap),
     &   (energia(print_order(ii)),ii=1,nprint_ene),etot,gnorm
c        write (iout,*) 'POINT',I,' ANGLES:',(ang_list(k),k=1,nmap)
c        call intout
c        call enerprint(energia)
   10   continue
      enddo ! i
      return
      end