Struct HierarchyCache 

pub struct HierarchyCache { /* private fields */ }

Incrementally-loaded hierarchy cache.

Implementations

impl HierarchyCache

pub fn new() -> Self

Create an empty hierarchy cache.

pub async fn load_root( &mut self, source: &impl ByteSource, info: &CopcInfo, ) -> Result<(), CopcError>

Load the root hierarchy page.

pub async fn load_pending_pages( &mut self, source: &impl ByteSource, ) -> Result<(), CopcError>

Load the next batch of pending hierarchy pages.

pub async fn load_all( &mut self, source: &impl ByteSource, info: &CopcInfo, ) -> Result<(), CopcError>

Load all pending pages (breadth-first).

pub async fn load_pages_for_bounds( &mut self, source: &impl ByteSource, bounds: &Aabb, root_bounds: &Aabb, ) -> Result<(), CopcError>

Load only pending pages whose subtree intersects bounds.

Pages whose voxel key falls outside the query region are left pending for future calls. New child pages discovered during loading are evaluated in subsequent iterations, so the full relevant subtree is loaded by the time this returns.

pub fn has_pending_pages(&self) -> bool

Whether there are unloaded hierarchy pages.

pub fn get(&self, key: &VoxelKey) -> Option<&HierarchyEntry>

Look up a hierarchy entry by key.

pub fn iter(&self) -> impl Iterator<Item = (&VoxelKey, &HierarchyEntry)>

Iterate all loaded entries.

pub fn len(&self) -> usize

Number of loaded entries.

pub fn is_empty(&self) -> bool

Whether no entries have been loaded.

Trait Implementations

impl Default for HierarchyCache

fn default() -> Self

Returns the “default value” for a type.