normals.f File Reference

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Functions/Subroutines
subroutine	normals (inpc, textpart, iponor, xnor, ixfree, ipkon, kon, nk, nk_, ne, lakon, istep, istat, n, iline, ipol, inl, ipoinp, inp, ipoinpc)

Function/Subroutine Documentation

normals()

subroutine normals	(	character*1, dimension(*)	inpc,
		character*132, dimension(16)	textpart,
		integer, dimension(2,*)	iponor,
		real*8, dimension(*)	xnor,
		integer	ixfree,
		integer, dimension(*)	ipkon,
		integer, dimension(*)	kon,
		integer	nk,
		integer	nk_,
		integer	ne,
		character*8, dimension(*)	lakon,
		integer	istep,
		integer	istat,
		integer	n,
		integer	iline,
		integer	ipol,
		integer	inl,
		integer, dimension(2,*)	ipoinp,
		integer, dimension(3,*)	inp,
		integer, dimension(0:*)	ipoinpc
	)

!
!     reading the input deck: *NORMAL
!
      implicit none
!
      character*1 inpc(*)
      character*8 lakon(*)
      character*132 textpart(16)
!
      integer iponor(2,*),ixfree,ipkon(*),kon(*),nk,ipoinpc(0:*),
     &  nk_,ne,istep,istat,n,ielement,node,j,indexe,i,
     &  key,iline,ipol,inl,ipoinp(2,*),inp(3,*)
!
      real*8 xnor(*),x,y,z,dd
!
      if(istep.gt.0) then
         write(*,*) '*ERROR in normals: *NORMAL should be placed'
         write(*,*) '  before all step definitions'
         call exit(201)
      endif
!
      do i=2,n
         write(*,*) 
     &        '*WARNING in normals: parameter not recognized:'
         write(*,*) '         ',
     &        textpart(i)(1:index(textpart(i),' ')-1)
         call inputwarning(inpc,ipoinpc,iline,
     &"*NORMAL%")
      enddo
!
      loop:do
      call getnewline(inpc,textpart,istat,n,key,iline,ipol,inl,
     &     ipoinp,inp,ipoinpc)
         if((istat.lt.0).or.(key.eq.1)) exit
!
         read(textpart(1)(1:10),'(i10)',iostat=istat) ielement
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline,
     &"*NORMAL%")
         read(textpart(2)(1:10),'(i10)',iostat=istat) node
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline,
     &"*NORMAL%")
         read(textpart(3)(1:20),'(f20.0)',iostat=istat) x
         if(istat.gt.0) call inputerror(inpc,ipoinpc,iline,
     &"*NORMAL%")
         if(n.le.3) then
            y=0.d0
         else
            read(textpart(4)(1:20),'(f20.0)',iostat=istat) y
            if(istat.gt.0) call inputerror(inpc,ipoinpc,iline,
     &"*NORMAL%")
         endif
         if(n.le.4) then
            z=0.d0
         else
            read(textpart(5)(1:20),'(f20.0)',iostat=istat) z
            if(istat.gt.0) call inputerror(inpc,ipoinpc,iline,
     &"*NORMAL%")
         endif
!
!        normalizing the normal
!
         dd=dsqrt(x*x+y*y+z*z)
         x=x/dd
         y=y/dd
         z=z/dd
!
         if(ielement.gt.ne) then
            write(*,*) '*ERROR in normals: element number',ielement
            write(*,*) '       exceeds ne'
            call exit(201)
         endif
!
         indexe=ipkon(ielement)
         do j=1,8
            if(kon(indexe+j).eq.node) then
               iponor(1,indexe+j)=ixfree
               if(lakon(ielement)(1:1).eq.'B') then
                  xnor(ixfree+4)=x
                  xnor(ixfree+5)=y
                  xnor(ixfree+6)=z
                  ixfree=ixfree+6
               elseif(lakon(ielement)(1:2).ne.'C3') then
                  xnor(ixfree+1)=x
                  xnor(ixfree+2)=y
                  xnor(ixfree+3)=z
                  ixfree=ixfree+3
               else
                  write(*,*) '*WARNING in normals: specifying a normal'
                  write(*,*) '         3-D element does not make sense'
               endif
               cycle loop
            endif
         enddo
         write(*,*) '*WARNING: node ',node,' does not belong to'
         write(*,*) '          element ',ielement
         write(*,*) '          normal definition discarded'
!
      enddo loop
!
      return