Class Key

A Key is a unique identifier for a node in a quadtree. It contains a lower-left point and a level number. The level number is the power of two for the size of the node envelope.

Inheritance
object
Key
Inherited Members
Namespace: NetTopologySuite.Index.Quadtree
Assembly: NetTopologySuite.dll
Syntax
public class Key

Constructors

| Edit this page View Source

Key(Envelope)

Declaration
public Key(Envelope itemEnv)
Parameters
Type Name Description
Envelope itemEnv

Properties

| Edit this page View Source

Centre

Declaration
public Coordinate Centre { get; }
Property Value
Type Description
Coordinate
| Edit this page View Source

Envelope

Declaration
public Envelope Envelope { get; }
Property Value
Type Description
Envelope
| Edit this page View Source

Level

Declaration
public int Level { get; }
Property Value
Type Description
int
| Edit this page View Source

Point

Declaration
public Coordinate Point { get; }
Property Value
Type Description
Coordinate

Methods

| Edit this page View Source

ComputeKey(Envelope)

Return a square envelope containing the argument envelope, whose extent is a power of two and which is based at a power of 2.

Declaration
public void ComputeKey(Envelope itemEnv)
Parameters
Type Name Description
Envelope itemEnv
| Edit this page View Source

ComputeQuadLevel(Envelope)

Declaration
public static int ComputeQuadLevel(Envelope env)
Parameters
Type Name Description
Envelope env
Returns
Type Description
int