org.xith3d.terrain.legacy.heightmap
Class MillerFractal

java.lang.Object
  org.xith3d.terrain.legacy.heightmap.HeightMap
      org.xith3d.terrain.legacy.heightmap.MillerFractal

All Implemented Interfaces:

java.io.Serializable, Terrain

public class MillerFractal
extends HeightMap
implements Terrain

Generates a heightmap using the "Miller" algorithm based on random fractals. It is an implementation of a varient of that alogirthm which is described by Paul Martz here: http://www.gameprogrammer.com/fractal.html.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.xith3d.terrain.legacy.heightmap.HeightMap

FLIP_STARTING, heightmap, ZIGZAG_COLS, ZIGZAG_ROWS

Constructor Summary

MillerFractal(int powerOfTwo, float startingHeight, float roughness, java.util.Random rg)
Initialises the miller fractal generator.

Method Summary

GeometryArray	generateGeometry(float startX, float startY, float stepX, float stepY) Build 3D geometry from terrain
void	generateTerrain() generates terrain using the Miller algorithm

Methods inherited from class org.xith3d.terrain.legacy.heightmap.HeightMap

calculateCoords, calculateIndicies, flatten2DArray, generate2D, generate3D, generate3D, generateUTF, point2float, unIndex

Methods inherited from class java.lang.Object

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

Constructor Detail

MillerFractal

public MillerFractal(int powerOfTwo,
                     float startingHeight,
                     float roughness,
                     java.util.Random rg)

Initialises the miller fractal generator.

Parameters:

powerOfTwo - number which will be raised to the power of to too calculate the width and height of the terrain

startingHeight - base height

roughness - how random, or "rough" the terrain will be

rg - Random number generator to use

Method Detail

generateTerrain

public void generateTerrain()

generates terrain using the Miller algorithm

Specified by:

generateTerrain in interface Terrain

generateGeometry

public GeometryArray generateGeometry(float startX,
                                      float startY,
                                      float stepX,
                                      float stepY)

Description copied from interface: Terrain

Build 3D geometry from terrain

Specified by:

generateGeometry in interface Terrain