Struct ChartCache 

pub struct ChartCache { /* private fields */ }

Chart coordinate and geometry cache.

This cache stores pre-computed pixel coordinates and spatial index for fast rendering and hit testing.

Implementations

impl ChartCache

pub fn new() -> Self

Create a new empty cache.

pub fn dirty_flags(&self) -> ChartDirtyFlags

Get the dirty flags.

pub fn invalidate(&mut self)

Mark the cache as needing a full rebuild.

pub fn mark_data_changed(&mut self)

Mark data as changed.

pub fn mark_data_appended(&mut self, series_idx: usize, new_count: usize)

Mark data as appended (partial update possible).

pub fn mark_view_changed(&mut self)

Mark view as changed (pan/zoom).

pub fn mark_style_changed(&mut self)

Mark style as changed.

pub fn mark_axes_changed(&mut self)

Mark axes as changed.

pub fn mark_bounds_changed(&mut self)

Mark bounds as changed.

pub fn clear_dirty(&mut self)

Clear dirty flags after processing.

pub fn needs_rebuild(&self) -> bool

Check if cache needs to be rebuilt.

pub fn rebuild(&mut self, chart: &Chart, bounds: &Rect)

Rebuild the cache for a chart.

pub fn series_positions(&self, series_idx: usize) -> Option<&[Vec2]>

Get cached pixel positions for a series.

pub fn spatial_index(&self) -> Option<&SpatialIndex>

Get the spatial index for hit testing.

pub fn hit_test( &self, chart: &Chart, pixel: Vec2, max_distance: f32, ) -> Option<CacheHitResult>

Perform a fast hit test using the spatial index.

Trait Implementations

impl Clone for ChartCache

fn clone(&self) -> ChartCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChartCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ChartCache

fn default() -> Self

Returns the “default value” for a type.