# Packages
Package hprtree a hprtree is a spatial index structure .
Package intervalrtree a tree is an R-tree index for one-dimensional intervals.
Package kdtree A tree is a k-D tree index over 2-D point data.
Package quadtree A Quadtree is a spatial index structure for efficient range querying of items bounded by 2D rectangles.
# Variables
ErrHPRInsert ...
ErrHPRNotIsIntersects ...
ErrNotMatchType ...
ErrRTreeQueried ...
ErrTreeIsNil ...
# Structs
ArrayVisitor Builds an array of all visited items.
LineSegmentVisitor ItemVisitor subclass to reduce volume of query results.
# Interfaces
ItemVisitor A visitor for items in a SpatialIndex.
SpatialIndex The basic operations supported implementing spatial index algorithms.