com.luciad.earth.view.gxy

LuciadLightspeedClass TLcdEarthGXYPointDensityLodStrategy

java.lang.Object

com.luciad.earth.view.gxy.TLcdEarthGXYPointDensityLodStrategy

All Implemented Interfaces:

ILcdEarthGXYLodSelectionStrategy

public class TLcdEarthGXYPointDensityLodStrategy
extends Object
implements ILcdEarthGXYLodSelectionStrategy

A LOD selection strategy that selects the proper level using a fixed point density.

Since:

8.2

Constructor Summary

Constructors

Constructor and Description
TLcdEarthGXYPointDensityLodStrategy() Creates a LOD strategy with default parameters.
TLcdEarthGXYPointDensityLodStrategy(double aNumPointsPerTile, double aIdealPointDistance) Creates a LOD strategy with the given parameters.

Method Summary

Modifier and Type	Method and Description
double	getIdealPointDistance()
int	getLevel(ILcdEarthTileSet aTileSet, ILcdEarthTileSetCoverage aCoverage, Graphics aGraphics, ILcdGXYContext aContext) Selects the most appropriate level for the given tileset.
double	getNumPointsPerTile()
void	setIdealPointDistance(double aIdealPointDistance)
void	setNumPointsPerTile(double aNumPointsPerTile)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TLcdEarthGXYPointDensityLodStrategy

public TLcdEarthGXYPointDensityLodStrategy()

Creates a LOD strategy with default parameters.

TLcdEarthGXYPointDensityLodStrategy

public TLcdEarthGXYPointDensityLodStrategy(double aNumPointsPerTile,
                                           double aIdealPointDistance)

Creates a LOD strategy with the given parameters.

Parameters:

aNumPointsPerTile - The average number of points per tile.

aIdealPointDistance - The ideal distance (in pixels) between

Method Detail

getIdealPointDistance

public double getIdealPointDistance()

setIdealPointDistance

public void setIdealPointDistance(double aIdealPointDistance)

getNumPointsPerTile

public double getNumPointsPerTile()

setNumPointsPerTile

public void setNumPointsPerTile(double aNumPointsPerTile)

getLevel

public int getLevel(ILcdEarthTileSet aTileSet,
                    ILcdEarthTileSetCoverage aCoverage,
                    Graphics aGraphics,
                    ILcdGXYContext aContext)

Description copied from interface: ILcdEarthGXYLodSelectionStrategy

Selects the most appropriate level for the given tileset.

Specified by:

getLevel in interface ILcdEarthGXYLodSelectionStrategy

Parameters:

aTileSet - The tileset.

aCoverage - The coverage of this tileset.

aGraphics - The current graphics.

aContext - The current 2D context.

Returns:

The most appropriate level.