SpatialIndex class abstract
The basic operations supported by classes implementing spatial index algorithms.
A spatial index typically provides a primary filter for range rectangle queries. A secondary filter is required to test for exact intersection. The secondary filter may consist of other kinds of tests, such as testing other spatial relationships.
@version 1.7
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
insert(
Envelope itemEnv, Object item) → void - Adds a spatial item with an extent specified by the given {@link Envelope} to the index
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
query(
Envelope searchEnv) → List - Queries the index for all items whose extents intersect the given search {@link Envelope} Note that some kinds of indexes may also return objects which do not in fact intersect the query envelope.
-
queryWithVisitor(
Envelope searchEnv, ItemVisitor visitor) → void - Queries the index for all items whose extents intersect the given search {@link Envelope}, and applies an {@link ItemVisitor} to them. Note that some kinds of indexes may also return objects which do not in fact intersect the query envelope.
-
remove(
Envelope itemEnv, Object item) → bool - Removes a single item from the tree.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited