<quadtree> ( bounds -- quadtree )
Quadtrees

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in-rect ( tree rect -- values )

Vocabulary
quadtrees

Inputs

bounds

a rect

Outputs

quadtree

a quadtree

Word description
Constructs an empty quadtree covering the axis-aligned rectangle indicated by bounds. All the keys of quadtree must be two-dimensional vectors lying inside bounds.

Definition

USING: accessors kernel ;

IN: quadtrees

: <quadtree> ( bounds -- quadtree )
    quadtree new swap >>bounds t >>leaf? ;