uk.ac.leeds.ccg.andyt.grids.core
Class Grid2DSquareCellDoubleChunkRAF

java.lang.Object
  uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellChunk
      uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellDoubleChunk
          uk.ac.leeds.ccg.andyt.grids.core.Grid2DSquareCellDoubleChunkRAF

All Implemented Interfaces:

java.io.Serializable

public class Grid2DSquareCellDoubleChunkRAF
extends AbstractGrid2DSquareCellDoubleChunk
implements java.io.Serializable

AbstractGrid2DSquareCellDoubleChunk extension that stores cell values in a RandomAccessFile.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellChunk

AbstractGrid2DSquareCellChunk.ChunkCellID

Field Summary

protected java.io.RandomAccessFile

randomAccessFile The RandomAccessFile for accessing file.

Fields inherited from class uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellChunk

_ChunkID, _Grid2DSquareCell, isSwapUpToDate

Constructor Summary

	Grid2DSquareCellDoubleChunkRAF() Default constructor
protected	Grid2DSquareCellDoubleChunkRAF(java.io.File file, AbstractGrid2DSquareCellDoubleChunk grid2DSquareCellDoubleChunk, AbstractGrid2DSquareCell.ChunkID chunkID) TODO: docs Optimise for this type (see commented code for clues)
protected	Grid2DSquareCellDoubleChunkRAF(java.io.File file, Grid2DSquareCellDouble grid2DSquareCellDouble, AbstractGrid2DSquareCell.ChunkID _ChunkID) Creates a new Grid2DSquareCellDouble grid containing all no data values.

Method Summary

protected void	clearData() Clears the data associated with this.
protected double	getCell(int chunkCellRowIndex, int chunkCellColIndex, double _NoDataValue) Returns the value at position given by: chunk cell row chunkCellRowIndex; chunk cell row chunkCellColIndex.
protected java.io.RandomAccessFile	getData() For returning this.randomAccessFile.
protected void	initCell(int chunkCellRowIndex, int chunkCellColIndex, double valueToInitialise) Initialises the value at position given by: chunk cell row chunkCellRowIndex; chunk cell column chunkCellColIndex.
protected void	initData() Initialises the data associated with this.
protected AbstractIterator	iterator() Returns a Grid2DSquareCellDoubleChunkRAFIterator for iterating over the cells in this.
protected double	setCell(int chunkCellRowIndex, int chunkCellColIndex, double valueToSet, double _NoDataValue) Returns the value at position given by: chunk cell row chunkCellRowIndex; chunk cell column chunkCellColIndex and sets it to valueToSet.

Methods inherited from class uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellDoubleChunk

getArithmeticMeanBigDecimal, getArithmeticMeanBigDecimal, getArithmeticMeanDouble, getArithmeticMeanDouble, getCell, getCell, getCellBigDecimal, getGrid2DSquareCellDouble, getGrid2DSquareCellDouble, getMaxDouble, getMaxDouble, getMedianDouble, getMedianDouble, getMinDouble, getMinDouble, getModeTDoubleHashSet, getModeTDoubleHashSet, getNonNoDataValueCountBigInteger, getNonNoDataValueCountBigInteger, getNonNoDataValueCountInt, getNonNoDataValueCountInt, getStandardDeviationDouble, getStandardDeviationDouble, getSumBigDecimal, getSumBigDecimal, initCell, initCells, initCells, setCell, sort1, toArrayIncludingNoDataValues, toArrayIncludingNoDataValues, toArrayNotIncludingNoDataValues, toArrayNotIncludingNoDataValues

Methods inherited from class uk.ac.leeds.ccg.andyt.grids.core.AbstractGrid2DSquareCellChunk

getChunkID, getChunkID, getDescription, getGrid2DSquareCell, getGrid2DSquareCell, getIsSwapUpToDate, getIsSwapUpToDate, getName, getName, inChunk, inChunk, initChunkID, initGrid2DSquareCell, iterator, setIsSwapUpToDate, setIsSwapUpToDate, toString

Methods inherited from class java.lang.Object

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

Field Detail

randomAccessFile

protected java.io.RandomAccessFile randomAccessFile

The RandomAccessFile for accessing file.

Constructor Detail

Grid2DSquareCellDoubleChunkRAF

public Grid2DSquareCellDoubleChunkRAF()

Default constructor

Grid2DSquareCellDoubleChunkRAF

protected Grid2DSquareCellDoubleChunkRAF(java.io.File file,
                                         Grid2DSquareCellDouble grid2DSquareCellDouble,
                                         AbstractGrid2DSquareCell.ChunkID _ChunkID)

Creates a new Grid2DSquareCellDouble grid containing all no data values.

Parameters:

grid2DSquareCellDouble -

_ChunkID -

Grid2DSquareCellDoubleChunkRAF

protected Grid2DSquareCellDoubleChunkRAF(java.io.File file,
                                         AbstractGrid2DSquareCellDoubleChunk grid2DSquareCellDoubleChunk,
                                         AbstractGrid2DSquareCell.ChunkID chunkID)

TODO: docs Optimise for this type (see commented code for clues)

Method Detail

initData

protected void initData()

Initialises the data associated with this.

Specified by:

initData in class AbstractGrid2DSquareCellDoubleChunk

getData

protected java.io.RandomAccessFile getData()

For returning this.randomAccessFile. TODO: Return a copy of this.randomAccessFile and make public? Should the file be copied?

clearData

protected void clearData()

Clears the data associated with this.

Specified by:

clearData in class AbstractGrid2DSquareCellDoubleChunk

getCell

protected double getCell(int chunkCellRowIndex,
                         int chunkCellColIndex,
                         double _NoDataValue)

Returns the value at position given by: chunk cell row chunkCellRowIndex; chunk cell row chunkCellColIndex.

Specified by:

getCell in class AbstractGrid2DSquareCellDoubleChunk

Parameters:

chunkCellRowIndex - the row index of the cell w.r.t. the origin of this chunk

chunkCellColIndex - the column index of the cell w.r.t. the origin of this chunk

_NoDataValue - the _NoDataValue of this.grid2DSquareCellDouble

initCell

protected void initCell(int chunkCellRowIndex,
                        int chunkCellColIndex,
                        double valueToInitialise)

Initialises the value at position given by: chunk cell row chunkCellRowIndex; chunk cell column chunkCellColIndex. Utility method for constructor. It is assumed that the file head is in the correct position

Specified by:

initCell in class AbstractGrid2DSquareCellDoubleChunk

Parameters:

chunkCellRowIndex - the row index of the cell w.r.t. the origin of this chunk

chunkCellColIndex - the column index of the cell w.r.t. the origin of this chunk

valueToInitialise - the value with which the cell is initialised

setCell

protected double setCell(int chunkCellRowIndex,
                         int chunkCellColIndex,
                         double valueToSet,
                         double _NoDataValue)

Returns the value at position given by: chunk cell row chunkCellRowIndex; chunk cell column chunkCellColIndex and sets it to valueToSet. The swapped version remains up to date (if it is) since the data resides in filespace.

Specified by:

setCell in class AbstractGrid2DSquareCellDoubleChunk

Parameters:

chunkCellRowIndex - the row index of the cell w.r.t. the origin of this chunk

chunkCellColIndex - the column index of the cell w.r.t. the origin of this chunk

valueToSet - the value the cell is to be set to

_NoDataValue - the _NoDataValue of this.grid2DSquareCellDouble

iterator

protected AbstractIterator iterator()

Returns a Grid2DSquareCellDoubleChunkRAFIterator for iterating over the cells in this.

Specified by:

iterator in class AbstractGrid2DSquareCellChunk