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MakePencilBoxes.cpp
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MakePencilBoxes.cpp
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#include <Box.H>
#include <Geometry.H>
BoxList MakePencilBoxes(const Geometry& geom, const int dir) {
const Box& problem_domain = geom.Domain();
const int grid_nx = problem_domain.length(0);
const int grid_ny = problem_domain.length(1);
const int grid_nz = problem_domain.length(2);
BoxList box_list;
// pencils point in x-direction
if (dir == 0) {
for (int k = 0; k < grid_nz; ++k) {
for (int j = 0; j < grid_ny; ++j) {
Box pencil;
pencil.setSmall(0, 0);
pencil.setBig(0, grid_nx-1);
pencil.setSmall(1, j);
pencil.setBig(1, j);
pencil.setSmall(2, k);
pencil.setBig(2, k);
box_list.push_back(pencil);
}
}
// pencils point in y-direction
} else if (dir == 1) {
for (int k = 0; k < grid_nz; ++k) {
for (int i = 0; i < grid_nx; ++i) {
Box pencil;
pencil.setSmall(0, i);
pencil.setBig(0, i);
pencil.setSmall(1, 0);
pencil.setBig(1, grid_ny-1);
pencil.setSmall(2, k);
pencil.setBig(2, k);
box_list.push_back(pencil);
}
}
// pencils point in z-direction
} else if (dir == 2) {
for (int j = 0; j < grid_ny; ++j) {
for (int i = 0; i < grid_nx; ++i) {
Box pencil;
pencil.setSmall(0, i);
pencil.setBig(0, i);
pencil.setSmall(1, j);
pencil.setBig(1, j);
pencil.setSmall(2, 0);
pencil.setBig(2, grid_nz-1);
box_list.push_back(pencil);
}
}
}
return box_list;
}