Function vertex_keep_table

splashsurf_lib/src/mesh.rs:375–390

Returns the list of vertices that should remain in the given mesh after keeping only the given cells

(mesh: &MeshT, cell_indices: &[usize])

/// Returns the list of vertices that should remain in the given mesh after keeping only the given cells
fn vertex_keep_table<R: Real, MeshT: Mesh3d<R>>(mesh: &MeshT, cell_indices: &[usize]) -> Vec<bool> {
    let vertices = mesh.vertices();
    let cells = mesh.cells();

    // Each entry is true if this vertex should be kept, false otherwise

    {
        let mut table = vec![false; vertices.len()];
        for cell in cell_indices.iter().copied().map(|c_i| &cells[c_i]) {
            for &vertex_index in cell.vertices() {
                table[vertex_index] = true;
            }
        }
        table
    }
}

/// Returns a new mesh keeping only the given cells and vertices in the mesh
fn keep_cells_impl<R: Real, MeshT: Mesh3d<R>>(