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LayoutSpatialIndex

cvkg_layout::spatial

Struct LayoutSpatialIndex 

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pub struct LayoutSpatialIndex { /* private fields */ }
Expand description

Axis-aligned 2-D quadtree that indexes laid-out view bounding boxes.

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impl LayoutSpatialIndex

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pub fn new() -> Self

Construct an empty index.

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pub fn rebuild( &mut self, root_bounds: Rect, entries: impl IntoIterator<Item = LayoutSpatialEntry>, )

Rebuild the index from a flat list of (hash, rect) pairs produced after a layout pass.

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pub fn hit_test(&self, x: f32, y: f32) -> Vec<LayoutSpatialEntry>

Return all entries whose bounding rect contains (x, y), ordered front-to-back.

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pub fn query_region(&self, region: &Rect) -> Vec<LayoutSpatialEntry>

Return all entries whose bounding rect overlaps region.

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impl Default for LayoutSpatialIndex

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fn default() -> Self

Returns the “default value” for a type. Read more

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