Struct DensityGrid 

pub struct DensityGrid {
    pub cell_size: u32,
    pub cols: u32,
    pub rows: u32,
    pub cells: Vec<u16>,
}

Downsampled persistence of the per-page bbox-stacking heatmap. Cell value is the SUM of full-resolution cell counts in the corresponding cell_size × cell_size region. Sum (not mean, not max) is what the consumer needs: weighted-overlap scores like sum_over_cells(page_covers_cell × cell_density) compose directly. Mean discards the cell-area normalization; max discards multi-page consistency.

u16 fits: max value = cell_size² × page_analysis_count (at default 8 × 8 × 10 = 640, well below 65535). Implementations clip to u16::MAX defensively in case overlapping bboxes push a cell past the steady-state upper bound.

Fields

cell_size: u32

Page-coordinate pt per cell. From config.heatmap_cell_size.

cols: u32

ceil(page_dimensions.width / cell_size).

rows: u32

ceil(page_dimensions.height / cell_size).

cells: Vec<u16>

Row-major: cells[row * cols + col].

Trait Implementations

impl Clone for DensityGrid

fn clone(&self) -> DensityGrid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DensityGrid

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

Formats the value using the given formatter.

impl Default for DensityGrid

fn default() -> DensityGrid

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DensityGrid

fn deserialize<__D>( __deserializer: __D, ) -> Result<DensityGrid, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DensityGrid

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.