org.xith3d.terrain
Class DefaultGridResourceProvider

java.lang.Object
  org.xith3d.terrain.DefaultGridResourceProvider

All Implemented Interfaces:

GridResourceProvider

Direct Known Subclasses:

L3DTResourceProvider

public class DefaultGridResourceProvider
extends java.lang.Object
implements GridResourceProvider

Constructor Summary

protected	DefaultGridResourceProvider()
	DefaultGridResourceProvider(java.util.List<GridResourceSpec<GridSampler>> samplerSpecs, java.util.List<GridResourceSpec<GridSurface>> surfaceSpecs)

Method Summary

protected GridSampler	createSampler(GridResourceSpec<GridSampler> spec)
protected GridSurface	createSurface(GridResourceSpec<GridSurface> spec)
protected GridResourceSpec	findResourceSpec(java.util.List<GridResourceSpec> specs, float s1, float t1, float s2, float t2, int detail)
GridSampler	findSampler(float s1, float t1, float s2, float t2, int detail) Will be called by the terrain subsystem to retrieve a sampler, that holds the data for the area sampled next.
GridSurface	findSurface(float s1, float t1, float s2, float t2, int detail) Will be called by the terrain subsystem to retrieve a surface of the specfied detail level.
void	releaseSampler(GridSampler sampler)
void	releaseSurface(GridSurface surface)
protected void	setSamplerSpecs(java.util.List<GridResourceSpec> samplerSpecs)
protected void	setSurfaceSpecs(java.util.List<GridResourceSpec> surfaceSpecs)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultGridResourceProvider

protected DefaultGridResourceProvider()

DefaultGridResourceProvider

public DefaultGridResourceProvider(java.util.List<GridResourceSpec<GridSampler>> samplerSpecs,
                                   java.util.List<GridResourceSpec<GridSurface>> surfaceSpecs)

Method Detail

setSamplerSpecs

protected void setSamplerSpecs(java.util.List<GridResourceSpec> samplerSpecs)

setSurfaceSpecs

protected void setSurfaceSpecs(java.util.List<GridResourceSpec> surfaceSpecs)

findSampler

public final GridSampler findSampler(float s1,
                                     float t1,
                                     float s2,
                                     float t2,
                                     int detail)

Description copied from interface: GridResourceProvider

Will be called by the terrain subsystem to retrieve a sampler, that holds the data for the area sampled next.

Specified by:

findSampler in interface GridResourceProvider

Parameters:

s1 - the "longitude" corner coordinate of the grid tile sampled next.

t1 - the "latitude" corner coordinate of the grid tile sampled next.

s2 - the opposite corners "longitude" coordinate of the grid tile sampled next.

t2 - the opposite corners "latitude" coordinate of the grid tile sampled next.

detail - the detail level of the grid tile sampled next. If '-1' the best already initialized sampler is returned.

Returns:

a GridSampler implementation to provide the height and local coordinate values

releaseSampler

public void releaseSampler(GridSampler sampler)

Specified by:

releaseSampler in interface GridResourceProvider

findSurface

public final GridSurface findSurface(float s1,
                                     float t1,
                                     float s2,
                                     float t2,
                                     int detail)

Description copied from interface: GridResourceProvider

Will be called by the terrain subsystem to retrieve a surface of the specfied detail level.

Specified by:

findSurface in interface GridResourceProvider

Parameters:

s1 - the "longitude" corner coordinate of the grid tile sampled next.

t1 - the "latitude" corner coordinate of the grid tile sampled next.

s2 - the opposite corners "longitude" coordinate of the grid tile sampled next.

t2 - the opposite corners "latitude" coordinate of the grid tile sampled next.

detail - the detail level of the grid tile textured next. If '-1' the best already initialized surface is returned.

Returns:

a GridSurface implementation that provides the appearance texture coordinate infos.

releaseSurface

public void releaseSurface(GridSurface surface)

Specified by:

releaseSurface in interface GridResourceProvider

findResourceSpec

protected GridResourceSpec findResourceSpec(java.util.List<GridResourceSpec> specs,
                                            float s1,
                                            float t1,
                                            float s2,
                                            float t2,
                                            int detail)

createSampler

protected GridSampler createSampler(GridResourceSpec<GridSampler> spec)

createSurface

protected GridSurface createSurface(GridResourceSpec<GridSurface> spec)