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module mode_create
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!This mode is intended for creating element/atom regions and writing them to specific files.
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use parameters
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use atoms
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use io
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use subroutines
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use elements
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use box
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implicit none
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character(len=100) :: name, element_type
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real(kind = dp) :: lattice_parameter, orient(3,3), cell_mat(3,8), box_len(3), basis(3,3), origin(3), maxlen(3), &
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orient_inv(3,3), box_vert(3,8), maxbd(3), lattice_space(3), duplicate(3)
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integer :: esize, ix, iy, iz, box_lat_vert(3,8), lat_ele_num, lat_atom_num, bd_in_lat(6), &
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basis_pos(3,10)
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logical :: dup_flag, dim_flag
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real(kind=dp), allocatable :: r_lat(:,:,:), r_atom_lat(:,:)
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public
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contains
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subroutine create(arg_pos)
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! Main subroutine which controls execution
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integer, intent(out) :: arg_pos
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integer :: i, ibasis, inod
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real(kind=dp), allocatable :: r_node_temp(:,:,:)
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print *, '-----------------------Mode Create---------------------------'
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!Initialize default parameters
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orient = reshape((/ 1.0_dp, 0.0_dp, 0.0_dp, 0.0_dp, 1.0_dp, 0.0_dp, 0.0_dp, 0.0_dp, 1.0_dp /), shape(orient))
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cell_mat(:,:)=0.0_dp
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name =''
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element_type = ''
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esize=0
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lattice_parameter=0.0_dp
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duplicate(:) = 0
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box_len(:) = 0.0_dp
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dup_flag = .false.
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dim_flag = .false.
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basisnum = 0
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lat_ele_num = 0
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lat_atom_num = 0
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!First we parse the command
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call parse_command(arg_pos)
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!Now we setup the unit element and call other init subroutines
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call def_ng_node(1, element_type)
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allocate(r_node_temp(3,max_basisnum,max_ng_node))
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!Get the inverse orientation matrix we will need later
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call matrix_inverse(orient,3,orient_inv)
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if(dup_flag) then
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!Define box vertices
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do i = 1, 8
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box_vert(:,i) = duplicate(:)*esize*lattice_space(:)*cubic_cell(:,i) + (origin(:)/lattice_parameter)
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end do
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!Now get the rotated box vertex positions in lattice space. Should be integer units
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box_lat_vert = int(matmul(fcc_inv, matmul(orient_inv, box_vert)))+1
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!Find the new maxlen
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maxbd = maxval(matmul(orient,matmul(fcc_mat,box_lat_vert)),2)
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do i = 1, 3
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box_bd(2*i) = maxval(box_vert(i,:)) - 0.25_dp*lattice_space(i)
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box_bd(2*i-1) = origin(i)-0.25_dp*lattice_space(i)
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end do
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else if(dim_flag) then
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!As a note everything is defined so that the lattice parameter is multiplied in at the end
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!so we have to divide all the real Angstroms units by the lattice parameter
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!Define box_vertices
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do i = 1, 8
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box_vert(:,i) = (cubic_cell(:,i)*box_len(:) + origin(:))/lattice_parameter
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end do
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!Now get the rotated box vertex positions in lattice space. Should be integer units
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box_lat_vert = int(matmul(fcc_inv, matmul(orient_inv, box_vert)))+1
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!Now get the box_bd in lattice units
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do i = 1, 3
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box_bd(2*i) = (box_len(i)+origin(i))/lattice_parameter
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box_bd(2*i-1) = origin(i)/lattice_parameter
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end do
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else
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print *, "Creating 1 element"
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call cell_init(lattice_parameter, esize, element_type, orient, cell_mat)
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!If the user doesn't pass any build instructions than we just put the cell mat into the element_array
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call alloc_ele_arrays(1,0)
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!Add the basis atoms to the unit cell
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do inod = 1, max_ng_node
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do ibasis = 1, basisnum(1)
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r_node_temp(:,ibasis,inod) = cell_mat(:,inod) + basis_pos(:,ibasis) + origin(:)
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end do
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end do
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do i = 1,3
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box_bd(2*i) = maxval(r_node_temp(i,:,:))
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box_bd(2*i-1) = origin(i)
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end do
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call add_element(element_type, esize, 1, 1, r_node_temp)
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end if
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!If we passed the dup_flag or dim_flag then we have to convert the lattice points and add them to the atom/element arrays
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if(dup_flag.or.dim_flag) then
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!Call the build function with the correct transformation matrix
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select case(trim(adjustl(element_type)))
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case('fcc')
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call build_with_rhomb(box_lat_vert, fcc_mat)
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case default
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print *, "Element type ", trim(adjustl(element_type)), " not accepted in mode create, please specify a supported ", &
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"element type"
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stop 3
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end select
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!Now that it is built multiply by the lattice parameter
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box_bd = box_bd*lattice_parameter
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print *, "Using mode create, ", lat_ele_num, " elements are created and ", lat_atom_num*basisnum(1), &
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" atoms are created."
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!Allocate variables
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call alloc_ele_arrays(lat_ele_num, lat_atom_num*basisnum(1))
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if(lat_atom_num > 0) then
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do i = 1, lat_atom_num
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do ibasis = 1, basisnum(1)
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call add_atom(basis_type(ibasis, 1), 1, (r_atom_lat(:,i)*lattice_parameter)+basis_pos(:,ibasis))
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end do
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end do
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deallocate(r_atom_lat)
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end if
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if(lat_ele_num > 0) then
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do i = 1, lat_ele_num
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do inod= 1, ng_node(1)
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do ibasis = 1, basisnum(1)
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r_node_temp(:,ibasis,inod) = (r_lat(:,inod,i)*lattice_parameter)+basis_pos(:,ibasis)
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end do
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end do
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call add_element(element_type, esize, 1, 1, r_node_temp)
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end do
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end if
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end if
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!The last thing we do is setup the sub_box_boundaries
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call alloc_sub_box(1)
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sub_box_num = 1
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sub_box_ori(:,:,1) = orient
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sub_box_bd(:,1) = box_bd
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sub_box_array_bd(1,:,1) = 1
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sub_box_array_bd(2,1,1) = atom_num
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sub_box_array_bd(2,2,1) = ele_num
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end subroutine create
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!This subroutine parses the command and pulls out information needed for mode_create
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subroutine parse_command(arg_pos)
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integer, intent(out) :: arg_pos
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integer :: ori_pos, i, j, arglen, stat
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character(len=100) :: textholder
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character(len=8) :: orient_string
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logical :: isortho, isrighthanded
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!Pull out all required positional arguments
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call get_command_argument(2, name, arglen)
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if(arglen==0) STOP "Name is missing in mode create"
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call get_command_argument(3,element_type, arglen)
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if(arglen==0) STOP "Element_type is missing in mode create"
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call get_command_argument(4,textholder, arglen)
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if(arglen==0) STOP "Lattice Parameter is missing in mode create"
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read(textholder, *, iostat=stat) lattice_parameter
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if(stat > 0) STOP "Error reading lattice parameter"
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call get_command_argument(5, textholder, arglen)
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if(arglen==0) STOP "Esize missing in mode create"
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read(textholder, *, iostat=stat) esize
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if(stat > 0) STOP "Error reading esize"
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arg_pos = 6
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!Check for optional keywords
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do while(.true.)
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if(arg_pos > command_argument_count()) exit
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!Pull out the next argument which should either be a keyword or an option
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call get_command_argument(arg_pos, textholder)
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textholder=adjustl(textholder)
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arg_pos=arg_pos+1
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!Choose what to based on what the option string is
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select case(trim(textholder))
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!If orient command is passed extract the orientation to numeric array format
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case('orient')
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do i = 1, 3
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call get_command_argument(arg_pos, orient_string, arglen)
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if (arglen==0) STOP "Missing orientation in orient command of mode create"
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call parse_ori_vec(orient_string, orient(i,:))
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arg_pos = arg_pos+1
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! ori_pos=2
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! do j = 1,3
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! if (orient_string(ori_pos:ori_pos) == '-') then
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! ori_pos = ori_pos + 1
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! read(orient_string(ori_pos:ori_pos), *, iostat=stat) orient(i,j)
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! if (stat>0) STOP "Error reading orient value"
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! orient(i,j) = -orient(i,j)
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! ori_pos = ori_pos + 1
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! else
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! read(orient_string(ori_pos:ori_pos), *, iostat=stat) orient(i,j)
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! if(stat>0) STOP "Error reading orient value"
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! ori_pos=ori_pos + 1
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! end if
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! end do
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end do
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!If the duplicate command is passed then we extract the information on the new bounds.
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case('duplicate')
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if(dim_flag) STOP "Both duplicate and dim options cannot be used in mode_create"
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dup_flag = .true.
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do i = 1, 3
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call get_command_argument(arg_pos, textholder)
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read(textholder, *) duplicate(i)
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arg_pos = arg_pos + 1
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end do
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case('dim')
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if(dup_flag) STOP "Both duplicate and dim options cannot be used in mode_create"
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dim_flag = .true.
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do i = 1, 3
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call get_command_argument(arg_pos, textholder)
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read(textholder, *) box_len(i)
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arg_pos = arg_pos + 1
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end do
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case('origin')
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do i = 1, 3
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call get_command_argument(arg_pos, textholder)
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read(textholder, *) origin(i)
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arg_pos = arg_pos + 1
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end do
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case default
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!If it isn't an option then you have to exit
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arg_pos = arg_pos -1
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exit
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end select
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end do
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!Calculate the lattice periodicity length in lattice units
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do i = 1, 3
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lattice_space(i) = norm2(orient(i,:))
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end do
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!Check special periodicity relations
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select case(trim(adjustl(element_type)))
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case('fcc')
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do i = 1,3
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!Check if one of the directions is 110
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if ((is_equal(abs(orient(i,1)), abs(orient(i,2))).and.(is_equal(orient(i,3),0.0_dp))).or.&
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(is_equal(abs(orient(i,2)), abs(orient(i,3))).and.(is_equal(orient(i,1),0.0_dp))).or.&
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(is_equal(abs(orient(i,3)), abs(orient(i,1))).and.(is_equal(orient(i,2),0.0_dp)))) then
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lattice_space(i) = 0.5_dp * lattice_space(i)
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!Check if one direction is 112
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else if ((is_equal(abs(orient(i,1)), abs(orient(i,2))).and.(is_equal(abs(orient(i,3)),2.0_dp*abs(orient(i,1))))).or.&
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(is_equal(abs(orient(i,2)), abs(orient(i,3))).and.(is_equal(abs(orient(i,1)),2.0_dp*abs(orient(i,2))))).or.&
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(is_equal(abs(orient(i,3)), abs(orient(i,1))).and.(is_equal(abs(orient(i,2)),2.0_dp*abs(orient(i,3))))))&
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then
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lattice_space(i) = 0.5_dp * lattice_space(i)
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end if
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end do
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end select
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!Now normalize the orientation matrix
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orient = matrix_normal(orient,3)
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!Now check these to make sure they are right handed and orthogonal
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call check_right_ortho(orient, isortho, isrighthanded)
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if (.not.isortho) then
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stop "Directions in orient are not orthogonal"
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else if (.not.isrighthanded) then
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stop "Directions in orient are not righthanded"
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end if
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!Set lattice_num to 1 and add the lattice_parameter to the elements module lattice paramter variable
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lattice_types = 1
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lapa(1) = lattice_parameter
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!If we haven't defined a basis then define the basis and add the default basis atom type and position
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if (basisnum(1) == 0) then
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max_basisnum = 1
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basisnum(1) = 1
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call add_atom_type(name, basis_type(1,1)) !If basis command not defined then we use name as the atom_name
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basis_pos(:,1) = 0.0_dp
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end if
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!
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end subroutine
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subroutine build_with_rhomb(box_in_lat, transform_matrix)
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!This subroutine returns all the lattice points in the box in r_lat
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!Inputs
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integer, dimension(3,8), intent(in) :: box_in_lat !The box vertices transformed to lattice space
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real(kind=dp), dimension(3,3), intent(in) :: transform_matrix !The transformation matrix from lattice_space to real space
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!Internal variables
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integer :: i, inod, bd_in_lat(6), bd_in_array(6), ix, iy, iz, numlatpoints, ele(3,8), rzero(3), &
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vlat(3), temp_lat(3,8), m, n, o
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real(kind=dp) :: v(3), temp_nodes(3,1,8)
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logical, allocatable :: lat_points(:,:,:)
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logical :: node_in_bd(8)
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!Do some value initialization
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max_esize = esize
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!First find the bounding lattice points (min and max points for the box in each dimension)
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numlatpoints = 1
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do i = 1, 3
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bd_in_lat(2*i-1) = minval(box_in_lat(i,:))
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bd_in_lat(2*i) = maxval(box_in_lat(i,:))
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numlatpoints = numlatpoints*(bd_in_lat(2*i)-bd_in_lat(2*i-1))
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end do
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!Allocate the correct lat variable
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select case(esize)
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!Atomistics
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case(2)
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allocate(r_atom_lat(3,numlatpoints))
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case default
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continue
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end select
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!Loop over all of lattice points within the boundary, we choose between two loops. One for the atomistic case
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!and one for the regular case
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if (esize==2) then
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!atomistics
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do iz = bd_in_lat(5)-5, bd_in_lat(6)+5
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do iy = bd_in_lat(3)-5, bd_in_lat(4)+5
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do ix = bd_in_lat(1)-5, bd_in_lat(2)+5
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v= (/ real(ix,dp), real(iy, dp), real(iz,dp) /)
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!Transform point back to real space for easier checking
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v = matmul(orient, matmul(transform_matrix,v))
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!If within the boundaries
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if(in_block_bd(v, box_bd)) then
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lat_atom_num = lat_atom_num + 1
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r_atom_lat(:,lat_atom_num) = v
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end if
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end do
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end do
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end do
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else
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!If we are working with elements we have to use more complex code
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!Initialize finite element
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ele(:,:) = (esize-1) * cubic_cell(:,:)
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!Make a 3 dimensional array of lattice points. This array is indexed by the integer lattice position.
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!A value of true means that the coordinate is a lattice point which is within the box_bd
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allocate(lat_points(bd_in_lat(2)-bd_in_lat(1)+10,bd_in_lat(4)-bd_in_lat(3)+10,bd_in_lat(6)-bd_in_lat(5)+10))
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lat_points(:,:,:) = .false.
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do iz = bd_in_lat(5)-5, bd_in_lat(6)+5
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do iy = bd_in_lat(3)-5, bd_in_lat(4)+5
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do ix = bd_in_lat(1)-5, bd_in_lat(2)+5
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v= (/ real(ix,dp), real(iy, dp), real(iz,dp) /)
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!Transform point back to real space for easier checking
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v = matmul(orient, matmul(transform_matrix,v))
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!If within the boundaries
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if(in_block_bd(v, box_bd)) then
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lat_points(ix-bd_in_lat(1)+5,iy-bd_in_lat(3)+5,iz-bd_in_lat(5) + 5) = .true.
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end if
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end do
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end do
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end do
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!Now we redefine bd_in_lat The first 3 indices contains limits for the lat_points array
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bd_in_array(1) = bd_in_lat(2) - bd_in_lat(1) + 10
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bd_in_array(2) = bd_in_lat(4) - bd_in_lat(3) + 10
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bd_in_array(3) = bd_in_lat(6) - bd_in_lat(5) + 10
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!Figure out where the starting point is. This is the first piont which fully contains the finite element
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outerloop: do iz = 1, bd_in_array(3)
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do iy = 1, bd_in_array(2)
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do ix = 1, bd_in_array(1)
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node_in_bd(8) = .false.
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do inod = 1, 8
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vlat = ele(:,inod) + (/ ix, iy, iz /)
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!Check to see if the node resides at a position containing a lattice point within the box
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if(any(vlat > shape(lat_points))) then
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continue
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else if(lat_points(vlat(1),vlat(2),vlat(3))) then
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node_in_bd(inod) = .true.
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end if
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end do
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if(all(node_in_bd)) then
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rzero = (/ ix, iy, iz /)
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exit outerloop
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end if
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end do
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end do
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end do outerloop
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!Now build the finite element region
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|
|
lat_ele_num = 0
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lat_atom_num = 0
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allocate(r_lat(3,8,numlatpoints/esize))
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!Redefined the second 3 indices as the number of elements that fit in the bounds
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do i = 1, 3
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bd_in_array(3+i) = bd_in_array(i)/esize
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end do
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|
!Now start the element at rzero
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|
|
do inod=1, 8
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|
|
ele(:,inod) = ele(:,inod) + rzero
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|
|
end do
|
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|
|
do iz = -bd_in_array(6), bd_in_array(6)
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do iy = -bd_in_array(5), bd_in_array(5)
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|
do ix = -bd_in_array(4), bd_in_array(4)
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|
node_in_bd(:) = .false.
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|
|
temp_nodes(:,:,:) = 0.0_dp
|
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|
|
temp_lat(:,:) = 0
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|
|
do inod = 1, 8
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|
|
vlat= ele(:,inod) + (/ ix*(esize), iy*(esize), iz*(esize) /)
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|
|
!Transform point back to real space for easier checking
|
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|
|
! v = matmul(orient, matmul(transform_matrix,v))
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|
|
do i = 1,3
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|
|
v(i) = real(vlat(i) + bd_in_lat(2*i-1) - 5)
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|
|
end do
|
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|
|
temp_nodes(:,1, inod) = matmul(orient, matmul(transform_matrix, v))
|
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|
|
temp_lat(:,inod) = vlat
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|
|
|
|
|
|
|
|
!Check to see if the lattice point values are greater then the array limits
|
|
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|
|
if(any(vlat > shape(lat_points)).or.any(vlat < 1)) then
|
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|
|
continue
|
|
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|
|
!If within array boundaries check to see if it is a lattice point
|
|
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|
|
else if(lat_points(vlat(1),vlat(2),vlat(3))) then
|
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|
|
node_in_bd(inod) = .true.
|
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|
|
end if
|
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|
|
end do
|
|
|
|
|
|
|
|
|
|
if(all(node_in_bd)) then
|
|
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|
|
lat_ele_num = lat_ele_num+1
|
|
|
|
|
r_lat(:,:,lat_ele_num) = temp_nodes(:,1,:)
|
|
|
|
|
|
|
|
|
|
!Now set all the lattice points contained within an element to false
|
|
|
|
|
do o = minval(temp_lat(3,:)), maxval(temp_lat(3,:))
|
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|
|
do n = minval(temp_lat(2,:)), maxval(temp_lat(2,:))
|
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|
|
do m = minval(temp_lat(1,:)), maxval(temp_lat(1,:))
|
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|
|
lat_points(m,n,o) = .false.
|
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|
|
end do
|
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|
|
end do
|
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|
|
end do
|
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|
|
|
|
|
|
|
|
end if
|
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|
|
end do
|
|
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|
|
end do
|
|
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|
|
end do
|
|
|
|
|
|
|
|
|
|
!Now figure out how many lattice points could not be contained in elements
|
|
|
|
|
allocate(r_atom_lat(3,count(lat_points)))
|
|
|
|
|
lat_atom_num = 0
|
|
|
|
|
do iz = 1, bd_in_array(3)
|
|
|
|
|
do iy = 1, bd_in_array(2)
|
|
|
|
|
do ix = 1, bd_in_array(1)
|
|
|
|
|
!If this point is a lattice point then save the lattice point as an atom
|
|
|
|
|
if (lat_points(ix,iy,iz)) then
|
|
|
|
|
v= (/ real(ix,dp), real(iy, dp), real(iz,dp) /)
|
|
|
|
|
do i = 1,3
|
|
|
|
|
v(i) = v(i) + real(bd_in_lat(2*i-1) - 5)
|
|
|
|
|
end do
|
|
|
|
|
!Transform point back to real space
|
|
|
|
|
v = matmul(orient, matmul(transform_matrix,v))
|
|
|
|
|
lat_atom_num = lat_atom_num + 1
|
|
|
|
|
r_atom_lat(:,lat_atom_num) = v
|
|
|
|
|
end if
|
|
|
|
|
end do
|
|
|
|
|
end do
|
|
|
|
|
end do
|
|
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|
|
|
|
|
|
|
end if
|
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|
|
|
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|
|
end subroutine build_with_rhomb
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
subroutine error_message(errorid)
|
|
|
|
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|
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|
|
integer, intent(in) :: errorid
|
|
|
|
|
|
|
|
|
|
select case(errorid)
|
|
|
|
|
case(1)
|
|
|
|
|
STOP "Name is missing."
|
|
|
|
|
case(2)
|
|
|
|
|
print *, "Element_type is missing"
|
|
|
|
|
case(3)
|
|
|
|
|
print *, "Lattice_parameter is missing"
|
|
|
|
|
case(4)
|
|
|
|
|
print *, "Lattice parameter is not in float form"
|
|
|
|
|
case(5)
|
|
|
|
|
print *, "Esize is missing"
|
|
|
|
|
case(6)
|
|
|
|
|
print *, "Esize is not in integer form"
|
|
|
|
|
case(7)
|
|
|
|
|
print *, "Cx(1) should equal Cx(2) in plane centroid finding algorithm. Please double check implementation"
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
STOP 3
|
|
|
|
|
end subroutine error_message
|
|
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|
|
end module mode_create
|
