Package com.luciad.shape.shape2D

Class TLcdLonLatFloatPolygonCache

java.lang.Object

com.luciad.shape.ALcdShape

com.luciad.shape.shape2D.ALcd2DEditableShape

com.luciad.shape.shape2D.ALcd2DEditableFloatPolypoint

com.luciad.shape.shape2D.TLcdLonLatFloatPolygon

com.luciad.shape.shape2D.TLcdLonLatFloatPolygonCache

All Implemented Interfaces:

ILcdBounded, ILcdCurve, ILcdPointList, ILcdPolygon, ILcdPolypoint, ILcdRing, ILcdShape, ILcd2DEditablePointList, ILcd2DEditablePolygon, ILcd2DEditablePolypoint, ILcd2DEditableShape, ILcdCache, ILcdCloneable, Serializable, Cloneable

public class TLcdLonLatFloatPolygonCache
extends TLcdLonLatFloatPolygon
implements ILcdCache

This class provides an implementation of ILcd2DEditablePolygon in the geodetic space. Calculations are based on a spherical approximation.

It uses an array of floats instead of a TLcd2DEditablePointList of ILcd2DEditablePoint objects. A single array of floats stores the 2D coordinates. The points are stored as (x,y) pairs.

The boolean indicates whether the last 4 places in the array can be used to store the bounds of the ILcd2DEditablePolygon.

This class is thread-hostile, even for read-only access, since point instances are being reused from an internal pool.

See Also:

• Serialized Form

Field Summary

Fields inherited from interface com.luciad.shape.ILcdCurve

INTERPOLATION_CIRCLE_BY_3POINTS, INTERPOLATION_CIRCLE_BY_CENTERPOINT, INTERPOLATION_CIRCULARARC_BY_3POINTS, INTERPOLATION_CIRCULARARC_BY_BULGE, INTERPOLATION_CIRCULARARC_BY_CENTERPOINT, INTERPOLATION_ELLIPTICAL, INTERPOLATION_GEODESIC, INTERPOLATION_LINEAR, INTERPOLATION_MIXED, INTERPOLATION_RHUMB

Fields inherited from interface com.luciad.shape.ILcdPolygon

CLOCKWISE, COUNTERCLOCKWISE, INVALID_ORIENTATION

Constructor Summary

Constructors

Constructor	Description
TLcdLonLatFloatPolygonCache()
TLcdLonLatFloatPolygonCache(float[] aPoints, boolean aHasBounds, boolean aBoundsInitialized, boolean aClone)
TLcdLonLatFloatPolygonCache(TLcdLonLatFloatPolygonCache aLonLatFloatPolygonCache)

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clears the cache.
Object	clone()	Creates and returns a copy of this object, by delegating to Object.clone().
Object	getCachedObject(Object aKey)	Looks up and returns the cached Object corresponding to the given key.
void	insertIntoCache(Object aKey, Object aObject)	Inserts a cache Object corresponding to the given key Object.
protected void	invalidate()
Object	removeCachedObject(Object aKey)	Looks up and removes the cached Object corresponding to the given key.

Methods inherited from class com.luciad.shape.shape2D.TLcdLonLatFloatPolygon

calculateBounds, computePointSFCT, contains2D, contains2D, createBounds, createPoint, getEndPoint, getEndTangent2D, getInterpolation, getLength2D, getLineSegmentIntersectionCount, getOrientation, getStartPoint, getStartTangent2D, getTangent2D, setOrientation

Methods inherited from class com.luciad.shape.shape2D.ALcd2DEditableFloatPolypoint

calculateFocusPoint, equals, getBounds, getFocusPoint, getPoint, getPointCount, hashCode, insert2DPoint, move2D, move2DPoint, removePointAt, translate2D, translate2DPoint

Methods inherited from class com.luciad.shape.shape2D.ALcd2DEditableShape

contains3D, move2D

Methods inherited from class com.luciad.shape.ALcdShape

contains3D, fromDomainObject

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.luciad.shape.shape2D.ILcd2DEditablePointList

append2DPoint, insert2DPoint, move2DPoint, removePointAt, translate2D, translate2DPoint

Methods inherited from interface com.luciad.shape.shape2D.ILcd2DEditableShape

move2D, move2D, translate2D

Methods inherited from interface com.luciad.shape.ILcdBounded

getBounds

Methods inherited from interface com.luciad.shape.ILcdPointList

getPoint, getPointCount, getPointSFCT, getX, getY, getZ

Methods inherited from interface com.luciad.shape.ILcdShape

contains3D, contains3D, getFocusPoint

Constructor Details

TLcdLonLatFloatPolygonCache

public TLcdLonLatFloatPolygonCache()

TLcdLonLatFloatPolygonCache

public TLcdLonLatFloatPolygonCache(float[] aPoints,
 boolean aHasBounds,
 boolean aBoundsInitialized,
 boolean aClone)

TLcdLonLatFloatPolygonCache

public TLcdLonLatFloatPolygonCache(TLcdLonLatFloatPolygonCache aLonLatFloatPolygonCache)

Method Details

invalidate

protected void invalidate()

Overrides:

invalidate in class TLcdLonLatFloatPolygon

insertIntoCache

public void insertIntoCache(Object aKey,
 Object aObject)

Description copied from interface: ILcdCache

Inserts a cache Object corresponding to the given key Object.

Specified by:

insertIntoCache in interface ILcdCache

Parameters:

aKey - the key Object that will be used to identify the Object. The key must therefore be a unique identifier, typically the caller itself: insertIntoCache(this, ...).

aObject - the Object to be cached.

getCachedObject

public Object getCachedObject(Object aKey)

Description copied from interface: ILcdCache

Looks up and returns the cached Object corresponding to the given key.

Specified by:

getCachedObject in interface ILcdCache

Parameters:

aKey - the key Object that was used for storing the cache Object.

Returns:

the cached Object, or null if there is no Object corresponding to the given key.

removeCachedObject

public Object removeCachedObject(Object aKey)

Description copied from interface: ILcdCache

Looks up and removes the cached Object corresponding to the given key.

Specified by:

removeCachedObject in interface ILcdCache

Parameters:

aKey - the key Object that was used for storing the cache Object.

Returns:

the cached Object, or null if there was no Object corresponding to the given key.

clearCache

public void clearCache()

Description copied from interface: ILcdCache

Clears the cache.

Specified by:

clearCache in interface ILcdCache

clone

public Object clone()

Description copied from class: ALcdShape

Creates and returns a copy of this object, by delegating to Object.clone(). Extensions should delegate to this implementation with super.clone(), in order to create an object instance of the right type, with all fields copied. They then should explicitly clone any non-primitive fields for which a deeper clone is required.

Specified by:

clone in interface ILcdCloneable

Overrides:

clone in class TLcdLonLatFloatPolygon

See Also:

• Object.clone()