Class PackedCoordinateSequence

A CoordinateSequence implementation based on a packed arrays.

Inheritance
Object
CoordinateSequence
PackedCoordinateSequence
PackedDoubleCoordinateSequence
PackedFloatCoordinateSequence
Inherited Members
Namespace: NetTopologySuite.Geometries.Implementation
Assembly: NetTopologySuite.dll
Syntax
[Serializable]
public abstract class PackedCoordinateSequence : CoordinateSequence

Constructors

| Improve this Doc View Source

PackedCoordinateSequence(Int32, Int32, Int32)

Creates an instance of this class

Declaration
protected PackedCoordinateSequence(int count, int dimension, int measures)
Parameters
Type Name Description
Int32 count

The number of Coordinates in the sequence.
Int32 dimension

The total number of ordinates that make up a Coordinate in this sequence.
Int32 measures

the number of measure-ordinates each {Coordinate in this sequence has.

Fields

| Improve this Doc View Source

CoordRef

A soft reference to the Coordinate[] representation of this sequence. Makes repeated coordinate array accesses more efficient.

Declaration
[NonSerialized]
protected WeakReference CoordRef
Field Value
Type Description
WeakReference

Methods

| Improve this Doc View Source

GetCoordinate(Int32)

Returns (possibly a copy of) the ith Coordinate in this collection. Whether or not the Coordinate returned is the actual underlying Coordinate or merely a copy depends on the implementation. Note that in the future the semantics of this method may change to guarantee that the Coordinate returned is always a copy. Callers are advised not to assume that they can modify a CoordinateSequence by modifying the Coordinate returned by this method.

Declaration
public sealed override Coordinate GetCoordinate(int i)
Parameters
Type Name Description
Int32 i
Returns
Type Description
Coordinate
Overrides
| Improve this Doc View Source

GetCoordinateInternal(Int32)

Returns a Coordinate representation of the specified coordinate, by always building a new Coordinate object.

Declaration
[Obsolete("Unused.  This will be removed in a future release.")]
protected virtual Coordinate GetCoordinateInternal(int index)
Parameters
Type Name Description
Int32 index

The coordinate index
Returns
Type Description
Coordinate

The Coordinate at the given index
| Improve this Doc View Source

ReleaseCoordinateArray()

Releases the weak reference to the coordinate array.

Declaration
public void ReleaseCoordinateArray()
Remarks

This is necessary if you directly modify the array from GetRawCoordinates.

| Improve this Doc View Source

ToCoordinateArray()

Returns (possibly copies of) the Coordinates in this collection. Whether or not the Coordinates returned are the actual underlying Coordinates or merely copies depends on the implementation. Note that if this implementation does not store its data as an array of Coordinates, this method will incur a performance penalty because the array needs to be built from scratch.

Declaration
public sealed override Coordinate[] ToCoordinateArray()
Returns
Type Description
Coordinate[]
Overrides
| Improve this Doc View Source

ToString()

Declaration
public override string ToString()
Returns
Type Description
String
Overrides

Extension Methods