Data.Geometry.Geos.Raw.STRTree

Documentation

class STRTreeLike t where

Minimal complete definition

withSTRTree

Methods

withSTRTree :: t a -> (Ptr GEOSSTRTree -> IO b) -> IO b

Instances

STRTreeLike STRTreeBuilder

Methods

withSTRTree :: STRTreeBuilder a -> (Ptr GEOSSTRTree -> IO b) -> IO b

STRTreeLike STRTree

Methods

withSTRTree :: STRTree a -> (Ptr GEOSSTRTree -> IO b) -> IO b

newtype STRTree a

A query-only data structure

Constructors

STRTree (ForeignPtr GEOSSTRTree)

Instances

STRTreeLike STRTree

Methods

withSTRTree :: STRTree a -> (Ptr GEOSSTRTree -> IO b) -> IO b

Eq (STRTree a)

Methods

(==) :: STRTree a -> STRTree a -> Bool

(/=) :: STRTree a -> STRTree a -> Bool

Show (STRTree a)

Methods

showsPrec :: Int -> STRTree a -> ShowS

show :: STRTree a -> String

showList :: [STRTree a] -> ShowS

newtype STRTreeBuilder a

A mutable data structure. Must build into an STRTree before querying.

Constructors

STRTreeBuilder (ForeignPtr GEOSSTRTree)

Instances

STRTreeLike STRTreeBuilder

Methods

withSTRTree :: STRTreeBuilder a -> (Ptr GEOSSTRTree -> IO b) -> IO b

Eq (STRTreeBuilder a)

Methods

(==) :: STRTreeBuilder a -> STRTreeBuilder a -> Bool

(/=) :: STRTreeBuilder a -> STRTreeBuilder a -> Bool

Show (STRTreeBuilder a)

Methods

showsPrec :: Int -> STRTreeBuilder a -> ShowS

show :: STRTreeBuilder a -> String

showList :: [STRTreeBuilder a] -> ShowS

type Finalizer a b = Ptr a -> Ptr b -> IO ()

wrap2 :: (Ptr a -> Ptr () -> IO ()) -> IO (GEOSQueryCallback a)

unwrap :: FunPtr (Finalizer a b) -> Finalizer a b

createSTRTreeBuilder :: Int -> Geos (STRTreeBuilder a)

Create a new R-tree using the Sort-Tile-Recursive algorithm (STRtree) for two-dimensional spatial data.

@param nodeCapacity the maximum number of child nodes that a node may have. The minimum recommended capacity value is 4. If unsure, use a default node capacity of 10.

build :: STRTreeBuilder a -> Geos (STRTree a)

Builds the STRTree by performing a trivial query on it.

insert :: (Storable b, Geometry a) => STRTreeBuilder b -> a -> b -> Geos ()

Insert an item into an STRtree

param tree the STRtree in which the item should be inserted param geometry a Geometry whose envelope corresponds to the extent of item @param item the item to insert into the tree

foldr :: (STRTreeLike t, Storable a) => (a -> b -> b) -> b -> t a -> Geos b

query :: (Storable b, Geometry a) => STRTree b -> a -> Geos (Vector b)