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## 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
`IVec[][]` | `pts`
`IVec2[][]` | `pts2`
`ISurfaceGeo` | `surface`
`int` | `udeg`
`int` | `uresolution`
`int` | `vdeg`
`int` | `vresolution`

Constructor Summary
`ISurfaceCache(ISurfaceGeo surf)`
`ISurfaceCache(ISurfaceGeo surf, int resolution)`

Method Summary
`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)

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