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UTI/PRE/mame2bloc [ Modules ]

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NOM

 mame2bloc(xmin,xmax,ymin,ymax,zmin,zmax,nx,ny,nz,lst_bloc,ndim)

DESCRIPTION

 Maillage regulier de blocs d un cube 3d en hexaedres (xmin,ymin,xmax,ymax,zmin,zmax)
 nx, ny, nz sont les nombres de blocs suivant x, y, z

 Regular mesh of blocks of a 3d cube in hexaedres (xmin,ymin,xmax,ymax,zmin,zmax)
 nx, ny, nz are the number of blocks following x, y, z

SOURCE

! Ce logiciel est regi par la licence [CeCILL-B]
! This software is governed by the [CeCILL-B] license
!=========================== DEBUT DES DECLARATIONS ====================
!.1-----  Implicit, Use
 use num
 use zorder
 implicit none
!.2-----  Declaration
 real(kind=kind(0.d0)), intent(inout)             :: xmin,xmax,ymin,ymax,zmin,zmax !! Definition du domaine a mailler / Definition of the area to be meshed 
 integer, intent(in)                              :: nx,ny,nz !! Discretisation suivant x,y,z / Discretisation according to x,y,z
 integer, intent(in)                              :: ndim !! Dimension du probleme / Problem dimensionb
 type(bloc), pointer, dimension(:), intent(inout) :: lst_bloc !! Liste des blocs / Block list

 real(kind=kind(0.d0)) :: x,y,z,hx,hy,hz
 integer               :: i,j,k,ia,mortonx,mortony,mortonz

 integer(kind=16)      :: nmorton
 integer(kind=16) ,allocatable,dimension(:)     :: lm
!=========================== DEBUT DU CODE EXECUTABLE ==================
!-------  Initialisations
! Dimensions caracteristiques de morton
hx=(xmax-xmin)/(nx)
hy=(ymax-ymin)/(ny)
hz=(zmax-zmin)/(nz)
petit_morton=min(hx,hy,hz)*0.1d0
x_min_morton=xmin
y_min_morton=ymin
z_min_morton=zmin
allocate (lm(nx*ny*nz))

! Creation des blocs
do i=1,nx
    do j=1,ny
        do k=1,nz
            ia=i+(j-1)*nx+nx*ny*(k-1)
            lst_bloc(ia)%numbl     = ia
            lst_bloc(ia)%idom      = 1
            lst_bloc(ia)%nrb       = 0
            lst_bloc(ia)%nx        = 1
            lst_bloc(ia)%ny        = 1
            lst_bloc(ia)%nz        = 1
            lst_bloc(ia)%s(:)%x    = 0.d0
            lst_bloc(ia)%s(:)%y    = 0.d0
            lst_bloc(ia)%s(:)%z    = 0.d0
            lst_bloc(ia)%s(1)%x    = xmin+(i-1)*hx ; lst_bloc(ia)%s(1)%y    = ymin+(j-1)*hy ; lst_bloc(ia)%s(1)%z    = zmin+(k-1)*hz  
            lst_bloc(ia)%s(2)%x    = xmin+(i-0)*hx ; lst_bloc(ia)%s(2)%y    = ymin+(j-1)*hy ; lst_bloc(ia)%s(2)%z    = zmin+(k-1)*hz  
            lst_bloc(ia)%s(3)%x    = xmin+(i-0)*hx ; lst_bloc(ia)%s(3)%y    = ymin+(j-0)*hy ; lst_bloc(ia)%s(3)%z    = zmin+(k-1)*hz  
            lst_bloc(ia)%s(4)%x    = xmin+(i-1)*hx ; lst_bloc(ia)%s(4)%y    = ymin+(j-0)*hy ; lst_bloc(ia)%s(4)%z    = zmin+(k-1)*hz  
            lst_bloc(ia)%s(5)%x    = xmin+(i-1)*hx ; lst_bloc(ia)%s(5)%y    = ymin+(j-1)*hy ; lst_bloc(ia)%s(5)%z    = zmin+(k-0)*hz  
            lst_bloc(ia)%s(6)%x    = xmin+(i-0)*hx ; lst_bloc(ia)%s(6)%y    = ymin+(j-1)*hy ; lst_bloc(ia)%s(6)%z    = zmin+(k-0)*hz  
            lst_bloc(ia)%s(7)%x    = xmin+(i-0)*hx ; lst_bloc(ia)%s(7)%y    = ymin+(j-0)*hy ; lst_bloc(ia)%s(7)%z    = zmin+(k-0)*hz  
            lst_bloc(ia)%s(8)%x    = xmin+(i-1)*hx ; lst_bloc(ia)%s(8)%y    = ymin+(j-0)*hy ; lst_bloc(ia)%s(8)%z    = zmin+(k-0)*hz  
            lst_bloc(ia)%cl(:)     = 0
            lst_bloc(ia)%cl(1)     = i-1+(j-1)*nx+nx*ny*(k-1)
            lst_bloc(ia)%cl(2)     = i+1+(j-1)*nx+nx*ny*(k-1)
            lst_bloc(ia)%cl(3)     = i+0+(j-2)*nx+nx*ny*(k-1)
            lst_bloc(ia)%cl(4)     = i+0+(j-0)*nx+nx*ny*(k-1)
            lst_bloc(ia)%cl(5)     = i+0+(j-1)*nx+nx*ny*(k-2)
            lst_bloc(ia)%cl(6)     = i+0+(j-1)*nx+nx*ny*(k-0)
              lst_bloc(ia)%dom(:)= 1
            if (i==1 )then
              lst_bloc(ia)%cl(1) = -111
            endif
            if (j==1 )then
              lst_bloc(ia)%cl(3) = -333
              if(ndim.eq.1)lst_bloc(ia)%cl(3) = -999
            endif
            if (k==1 )then
              lst_bloc(ia)%cl(5) = -555
              if(ndim.le.2)lst_bloc(ia)%cl(5) = -999
            endif
            if (i==nx)then
              lst_bloc(ia)%cl(2) = -222
            endif
            if (j==ny)then
              lst_bloc(ia)%cl(4) = -444
              if(ndim.eq.1)lst_bloc(ia)%cl(4) = -999
            endif
            if (k==nz)then
              lst_bloc(ia)%cl(6) = -666
              if(ndim.le.2)lst_bloc(ia)%cl(6) = -999
            endif
            lst_bloc(ia)%nrf(:)      = 0
            lst_bloc(ia)%first_cell  = 0
            lst_bloc(ia)%nb_cell     = 0
            lst_bloc(ia)%first_face  = 0
            lst_bloc(ia)%nb_face     = 0
            lst_bloc(ia)%first_vertex= 0
            lst_bloc(ia)%nb_vertex   = 0
            lst_bloc(ia)%volc        = volbloc(lst_bloc(ia))
             x=xmin+(2*i-1)*hx*.5d0
             y=ymin+(2*j-1)*hy*.5d0
             z=zmin+(2*k-1)*hz*.5d0
             mortonx=coord_real2int(x,x_min_morton,petit_morton)
             mortony=coord_real2int(y,y_min_morton,petit_morton)
             mortonz=coord_real2int(z,z_min_morton,petit_morton)
             call zordercurve3d(mortonx,mortony,mortonz,nmorton)
             !lst_bloc(ia)%morton    = nmorton
             lm(ia)    = nmorton
        enddo
    enddo
enddo

! on ordonne les numeros (locaux) des blocs selon le code de morton (lm)
k=0
do ia=1,nx*ny*nz
    j=int(minloc(lm,1,mask=lm.ne.0))
    k=k+1
    lst_bloc(ia)%morton    = k
    lm(j)=0
enddo
deallocate(lm)
return
!===========================   FIN DE LA ROUTINE    ====================

END SUBROUTINE mame2bloc