RayCastingIterator

java.lang.Object
- edu.unh.sdb.datasource.RayCastingIterator

All Implemented Interfaces:

SDBIterator
```
public class RayCastingIterator
extends java.lang.Object
implements SDBIterator
```
Iterates through an arbitrary oriented cuboid. At each step a new ray perpendicular on the base of the cuboid is returned. The iterations continues untill the whole based is finished.

Constructor Summary

Constructors
Constructor and Description
`RayCastingIterator(DataSource dataSource, javax.vecmath.Vector3d initialOrientation, javax.vecmath.Matrix4d rot, javax.vecmath.Point3d start, double baseX, double baseY, double height)` Start with a cuboid oriented along the Z axis, the base at z=-height/2 and the top at z = height/2.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`end()` Advance the iterator to the last valid value in the iteration.
`javax.vecmath.Vector3d`	`getBaseNormal()`
`double`	`getBaseX()`
`double`	`getBaseY()`
`double`	`getBeginX()`
`double`	`getBeginY()`
`java.util.ArrayList<javax.vecmath.Point3d>`	`getCornersDeterminingBb()`
`RayIterator`	`getCurrentRay()`
`double`	`getCurrentX()`
`double`	`getCurrentY()`
`double`	`getEndX()`
`double`	`getEndY()`
`double`	`getHeight()`
`ISBounds`	`getIterationBoundingBox()`
`javax.vecmath.Matrix4d`	`getRotation()`
`javax.vecmath.Vector3d`	`getSliceNormal()`
`javax.vecmath.Point3d`	`getStart()`
`double`	`getStep()`
`javax.vecmath.Vector3d`	`getViewingDirection()`
`void`	`init()` Perform any necessary initialization, and set the iterator value to the first value in the iteration.
`boolean`	`isBacktoFront()`
`boolean`	`lastX()`
`boolean`	`lastY()`
`boolean`	`next()` Advance the iterator by one step.
`void`	`setBacktoFront(boolean backtoFront)`
`void`	`setBlockSize(IndexSpaceID blockSize)`
`void`	`setDataSource(DataSource dataSource)`
`void`	`setStep(double step)`
`boolean`	`valid()` Return true if the iterator currently has a valid value, false otherwise.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RayCastingIterator
```
public RayCastingIterator(DataSource dataSource,
                  javax.vecmath.Vector3d initialOrientation,
                  javax.vecmath.Matrix4d rot,
                  javax.vecmath.Point3d start,
                  double baseX,
                  double baseY,
                  double height)
```
    Start with a cuboid oriented along the Z axis, the base at z=-height/2 and the top at z = height/2. The 'center' of the cuboid is at origin. Rotate the cuboid to get to 'initialOrientation'. Usually, this is a no-operation. Rotate the cuboid with 'rotation' and then move the center to 'start'.
- Method Detail
  - init
```
public void init()
```
    Description copied from interface: SDBIterator
    
    Perform any necessary initialization, and set the iterator value to the first value in the iteration.
    
    Specified by:
    
    init in interface SDBIterator
  - next
```
public boolean next()
```
    Description copied from interface: SDBIterator
    
    Advance the iterator by one step. If the iterator cannot be advanced to produce a valid value, the value of the iterator is undefined, but the next() method will return false, as will a subsequent call to valid().
    
    Specified by:
    
    next in interface SDBIterator
  - valid
```
public boolean valid()
```
    Description copied from interface: SDBIterator
    
    Return true if the iterator currently has a valid value, false otherwise.
    
    Specified by:
    
    valid in interface SDBIterator
  - lastX
```
public boolean lastX()
```
  - lastY
```
public boolean lastY()
```
  - end
```
public void end()
```
    Description copied from interface: SDBIterator
    
    Advance the iterator to the last valid value in the iteration. (optional operation)
    
    Specified by:
    
    end in interface SDBIterator
  - getIterationBoundingBox
```
public ISBounds getIterationBoundingBox()
```
  - getCurrentRay
```
public RayIterator getCurrentRay()
```
  - getBaseX
```
public double getBaseX()
```
  - getBeginX
```
public double getBeginX()
```
  - getEndX
```
public double getEndX()
```
  - getCurrentX
```
public double getCurrentX()
```
  - getBeginY
```
public double getBeginY()
```
  - getEndY
```
public double getEndY()
```
  - getCurrentY
```
public double getCurrentY()
```
  - getBaseY
```
public double getBaseY()
```
  - getHeight
```
public double getHeight()
```
  - getStart
```
public javax.vecmath.Point3d getStart()
```
  - getBaseNormal
```
public javax.vecmath.Vector3d getBaseNormal()
```
  - getRotation
```
public javax.vecmath.Matrix4d getRotation()
```
  - setBlockSize
```
public void setBlockSize(IndexSpaceID blockSize)
```
  - setStep
```
public void setStep(double step)
```
  - getStep
```
public double getStep()
```
  - isBacktoFront
```
public boolean isBacktoFront()
```
  - setBacktoFront
```
public void setBacktoFront(boolean backtoFront)
```
  - getViewingDirection
```
public javax.vecmath.Vector3d getViewingDirection()
```
  - getSliceNormal
```
public javax.vecmath.Vector3d getSliceNormal()
```
  - getCornersDeterminingBb
```
public java.util.ArrayList<javax.vecmath.Point3d> getCornersDeterminingBb()
```
  - setDataSource
```
public void setDataSource(DataSource dataSource)
```

Class RayCastingIterator

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

RayCastingIterator

Method Detail

init

next

valid

lastX

lastY

end

getIterationBoundingBox

getCurrentRay

getBaseX

getBeginX

getEndX

getCurrentX

getBeginY

getEndY

getCurrentY

getBaseY

getHeight

getStart

getBaseNormal

getRotation

setBlockSize

setStep

getStep

isBacktoFront

setBacktoFront

getViewingDirection

getSliceNormal

getCornersDeterminingBb

setDataSource