C# Class zxingwp7.common.BitMatrix

Represents a 2D matrix of bits. In function arguments below, and throughout the common module, x is the column position, and y is the row position. The ordering is always x, y. The origin is at the top-left.

Internally the bits are represented in a 1-D array of 32-bit ints. However, each row begins with a new int. This is done intentionally so that we can copy out a row into a BitArray very efficiently.

The ordering of bits is row-major. Within each int, the least significant bits are used first, meaning they represent lower x values. This is compatible with BitArray's implementation.

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Public Properties

Property	Type	Description
bits	int[]
height	int
rowSize	int
width	int

Public Methods

Method	Description
BitMatrix ( int dimension ) : System
BitMatrix ( int width, int height ) : System
ToString ( ) : String
clear ( ) : void	Clears all bits (sets to false).
flip ( int x, int y ) : void	Flips the given bit.
getRow ( int y, BitArray row ) : BitArray	A fast method to retrieve one row of data from the matrix as a BitArray.
get_Renamed ( int x, int y ) : bool	Gets the requested bit, where true means black.
setRegion ( int left, int top, int width, int height ) : void	Sets a square region of the bit matrix to true.
set_Renamed ( int x, int y ) : void	Sets the given bit to true.

Method Details

BitMatrix() public method

public BitMatrix ( int dimension ) : System
dimension	int
return	System

BitMatrix() public method

public BitMatrix ( int width, int height ) : System
width	int
height	int
return	System

ToString() public method

public ToString ( ) : String
return	String

clear() public method

Clears all bits (sets to false).

public clear ( ) : void
return	void

flip() public method

Flips the given bit.

public flip ( int x, int y ) : void
x	int	The horizontal component (i.e. which column) ///
y	int	The vertical component (i.e. which row) ///
return	void

getRow() public method

A fast method to retrieve one row of data from the matrix as a BitArray.

public getRow ( int y, BitArray row ) : BitArray
y	int	The row to retrieve ///
row	BitArray	An optional caller-allocated BitArray, will be allocated if null or too small ///
return	BitArray

get_Renamed() public method

Gets the requested bit, where true means black.

public get_Renamed ( int x, int y ) : bool
x	int	The horizontal component (i.e. which column) ///
y	int	The vertical component (i.e. which row) ///
return	bool

setRegion() public method

Sets a square region of the bit matrix to true.

public setRegion ( int left, int top, int width, int height ) : void
left	int	The horizontal position to begin at (inclusive) ///
top	int	The vertical position to begin at (inclusive) ///
width	int	The width of the region ///
height	int	The height of the region ///
return	void

set_Renamed() public method

Sets the given bit to true.

public set_Renamed ( int x, int y ) : void
x	int	The horizontal component (i.e. which column) ///
y	int	The vertical component (i.e. which row) ///
return	void

Property Details

bits public_oe property

public int[] bits
return	int[]

height public_oe property

public int height
return	int

rowSize public_oe property

public int rowSize
return	int

width public_oe property

public int width
return	int