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use super::super::{Coordinates, HexConnectivity, NodeMap, Octree, face_direction};
pub fn apply(
cells_nodes: &[usize],
nodes_map: &NodeMap,
tree: &Octree,
nodal_coordinates: &Coordinates,
) -> HexConnectivity {
let mut element_node_connectivity = vec![];
tree.iter()
.filter_map(|cell| tree.cell_contains_leaves(cell))
.for_each(|(cell_subcells, cell_faces)| {
cell_faces
.iter()
.enumerate()
.for_each(|(face_index, face_cell)| {
if let Some(face_cell_index) = face_cell
&& let Some(face_subsubcells) =
tree.cell_subcells_contain_leaves(&tree[*face_cell_index], face_index)
{
template_inner(face_index).into_iter().for_each(
|[
adjacent_face,
cell_subcell_a,
cell_subcell_b,
adjacent_cell_subcell_a,
adjacent_cell_subcell_b,
face_subsubcell_a,
face_subsubcell_b,
face_subsubcell_c,
face_subsubcell_d,
adjacent_face_subsubcell_a,
adjacent_face_subsubcell_b,
adjacent_face_subsubcell_c,
adjacent_face_subsubcell_d,
]| {
if let Some(adjacent_cell) = cell_faces[adjacent_face]
&& let Some((adjacent_cell_subcells, adjacent_cell_faces)) =
tree.cell_contains_leaves(&tree[adjacent_cell])
&& let Some(adjacent_cell_face_cell) =
adjacent_cell_faces[face_index]
&& let Some(adjacent_face_subsubcells) = tree
.cell_subcells_contain_leaves(
&tree[adjacent_cell_face_cell],
face_index,
)
{
let lngth = *tree[face_subsubcells[face_subsubcell_a]]
.get_lngth()
as f64;
let coordinates_1 = &nodal_coordinates
[cells_nodes[face_subsubcells[face_subsubcell_a]]]
- face_direction(face_index) * lngth;
let node_1 = *nodes_map
.get(&[
(2.0 * coordinates_1[0]) as usize,
(2.0 * coordinates_1[1]) as usize,
(2.0 * coordinates_1[2]) as usize,
])
.expect("nonexistent entry");
let coordinates_2 = &nodal_coordinates
[cells_nodes[face_subsubcells[face_subsubcell_b]]]
- face_direction(face_index) * lngth;
let node_2 = *nodes_map
.get(&[
(2.0 * coordinates_2[0]) as usize,
(2.0 * coordinates_2[1]) as usize,
(2.0 * coordinates_2[2]) as usize,
])
.expect("nonexistent entry");
let coordinates_3 = &nodal_coordinates[cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_a]]]
- face_direction(face_index) * lngth;
let node_3 = *nodes_map
.get(&[
(2.0 * coordinates_3[0]) as usize,
(2.0 * coordinates_3[1]) as usize,
(2.0 * coordinates_3[2]) as usize,
])
.expect("nonexistent entry");
let coordinates_4 = &nodal_coordinates[cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_b]]]
- face_direction(face_index) * lngth;
let node_4 = *nodes_map
.get(&[
(2.0 * coordinates_4[0]) as usize,
(2.0 * coordinates_4[1]) as usize,
(2.0 * coordinates_4[2]) as usize,
])
.expect("nonexistent entry");
element_node_connectivity.push([
cells_nodes[cell_subcells[cell_subcell_a]],
cells_nodes[cell_subcells[cell_subcell_b]],
node_1,
node_2,
cells_nodes
[adjacent_cell_subcells[adjacent_cell_subcell_a]],
cells_nodes
[adjacent_cell_subcells[adjacent_cell_subcell_b]],
node_3,
node_4,
]);
element_node_connectivity.push([
cells_nodes[face_subsubcells[face_subsubcell_a]],
cells_nodes[face_subsubcells[face_subsubcell_b]],
node_2,
node_1,
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_a]],
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_b]],
node_4,
node_3,
]);
element_node_connectivity.push([
cells_nodes[face_subsubcells[face_subsubcell_b]],
node_2,
node_4,
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_b]],
cells_nodes[face_subsubcells[face_subsubcell_d]],
cells_nodes[cell_subcells[cell_subcell_a]],
cells_nodes
[adjacent_cell_subcells[adjacent_cell_subcell_a]],
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_d]],
]);
element_node_connectivity.push([
cells_nodes[face_subsubcells[face_subsubcell_a]],
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_a]],
node_3,
node_1,
cells_nodes[face_subsubcells[face_subsubcell_c]],
cells_nodes
[adjacent_face_subsubcells[adjacent_face_subsubcell_c]],
cells_nodes
[adjacent_cell_subcells[adjacent_cell_subcell_b]],
cells_nodes[cell_subcells[cell_subcell_b]],
]);
}
},
)
}
})
});
element_node_connectivity
}
fn template_inner(face_index: usize) -> [[usize; 13]; 2] {
match face_index {
0 => [
[1, 1, 5, 0, 4, 13, 7, 15, 5, 8, 2, 10, 0],
[4, 0, 1, 4, 5, 4, 1, 5, 0, 14, 11, 15, 10],
],
1 => [
[0, 5, 1, 7, 3, 2, 8, 0, 10, 7, 13, 5, 15],
[4, 1, 3, 5, 7, 4, 1, 5, 0, 14, 11, 15, 10],
],
2 => [
[1, 7, 3, 6, 2, 7, 13, 5, 15, 2, 8, 0, 10],
[5, 6, 7, 2, 3, 14, 11, 15, 10, 4, 1, 5, 0],
],
3 => [
[2, 6, 2, 4, 0, 7, 13, 5, 15, 2, 8, 0, 10],
[5, 4, 6, 0, 2, 14, 11, 15, 10, 4, 1, 5, 0],
],
4 => [
[1, 3, 1, 2, 0, 7, 13, 5, 15, 2, 8, 0, 10],
[2, 2, 3, 0, 1, 14, 11, 15, 10, 4, 1, 5, 0],
],
5 => [
[0, 4, 5, 6, 7, 4, 1, 5, 0, 14, 11, 15, 10],
[3, 6, 4, 7, 5, 2, 8, 0, 10, 7, 13, 5, 15],
],
_ => panic!(),
}
}