igeo

Class ISurfaceCache

java.lang.Object

igeo.ISurfaceCache

public class ISurfaceCache
extends java.lang.Object

Point cache of a surface for proximity search.

Author:

Satoru Sugihara

Field Summary

Fields

Modifier and Type	Field and Description
IVec[][]	pts
IVec2[][]	pts2
ISurfaceGeo	surface
int	udeg
int	uresolution
int	vdeg
int	vresolution

Constructor Summary

Constructors

Constructor and Description
ISurfaceCache(ISurfaceGeo surf)
ISurfaceCache(ISurfaceGeo surf, int resolution)

Method Summary

Methods

Modifier and Type	Method and Description
int[]	closest(IVec pt)
int[]	closest(IVec2 pt)
int[]	getCloserTriangle(IVec2 pt, int uidx, int vidx)
int[]	getCloserTriangle(IVec pt, int uidx, int vidx) center of a cell in pts grid
void	init()
void	init2()
IVec2	recursiveSearch(IVec2 pt, double minU, double minV, double maxU, double maxV, IVec2[][] cornerPts, int depthCount)
IVec2	recursiveSearch(IVec pt, double minU, double minV, double maxU, double maxV, IVec[][] cornerPts, int depthCount)
double	u(int uindex)
IVec2	uv(IVec pt) approximate invert projection from 3D location to interanl parameter U (closest point on curve)
IVec2	uv(IVec2 pt) approximate invert projection from 3D location to interanl parameter U (closest point on curve)
double	v(int vindex)

Methods inherited from class java.lang.Object

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

Field Detail

surface

public ISurfaceGeo surface

uresolution

public int uresolution

vresolution

public int vresolution

udeg

public int udeg

vdeg

public int vdeg

pts

public IVec[][] pts

pts2

public IVec2[][] pts2

Constructor Detail

ISurfaceCache

public ISurfaceCache(ISurfaceGeo surf,
             int resolution)

ISurfaceCache

public ISurfaceCache(ISurfaceGeo surf)

Method Detail

init

public void init()

init2

public void init2()

u

public double u(int uindex)

v

public double v(int vindex)

getCloserTriangle

public int[] getCloserTriangle(IVec pt,
                      int uidx,
                      int vidx)

center of a cell in pts grid

getCloserTriangle

public int[] getCloserTriangle(IVec2 pt,
                      int uidx,
                      int vidx)

uv

public IVec2 uv(IVec pt)

approximate invert projection from 3D location to interanl parameter U (closest point on curve)

uv

public IVec2 uv(IVec2 pt)

approximate invert projection from 3D location to interanl parameter U (closest point on curve)

recursiveSearch

public IVec2 recursiveSearch(IVec pt,
                    double minU,
                    double minV,
                    double maxU,
                    double maxV,
                    IVec[][] cornerPts,
                    int depthCount)

recursiveSearch

public IVec2 recursiveSearch(IVec2 pt,
                    double minU,
                    double minV,
                    double maxU,
                    double maxV,
                    IVec2[][] cornerPts,
                    int depthCount)

closest

public int[] closest(IVec pt)

closest

public int[] closest(IVec2 pt)