Hjg.Pngcs.Chunks.PngChunkPHYS Class Reference

pHYs chunk: http://www.w3.org/TR/PNG/#11pHYs More...

Inherits Hjg.Pngcs.Chunks.PngChunkSingle.

Public Member Functions
	PngChunkPHYS (ImageInfo info)
override ChunkOrderingConstraint	GetOrderingConstraint ()
	Get ordering constrain
override ChunkRaw	CreateRawChunk ()
	Serialization. Creates a Raw chunk, ready for write, from this chunk content
override void	CloneDataFromRead (PngChunk other)
	Override to make a copy (normally deep) from other chunk
override void	ParseFromRaw (ChunkRaw chunk)
	Deserialization. Given a Raw chunk, just rad, fills this chunk content
double	GetAsDpi ()
	returns -1 if not in meters, or not equal
double[]	GetAsDpi2 ()
	returns -1 if the physicial unit is unknown
void	SetAsDpi (double dpi)
	same in both directions
void	SetAsDpi2 (double dpix, double dpiy)
Public Member Functions inherited from Hjg.Pngcs.Chunks.PngChunkSingle
	PngChunkSingle (String id, ImageInfo imgInfo)
sealed override bool	AllowsMultiple ()
	This is implemented in PngChunkMultiple/PngChunSingle
override int	GetHashCode ()
override bool	Equals (object obj)
Public Member Functions inherited from Hjg.Pngcs.Chunks.PngChunk
ChunkRaw	createEmptyChunk (int len, bool alloc)
override String	ToString ()
	Basic info: Id, length, Type name

Public Attributes
const String	ID = ChunkHelper.pHYs

Properties
long	PixelsxUnitX [get, set]
long	PixelsxUnitY [get, set]
int	Units [get, set]
	0: unknown 1:metre

Additional Inherited Members
Public Types inherited from Hjg.Pngcs.Chunks.PngChunk
enum	ChunkOrderingConstraint {   NONE, BEFORE_PLTE_AND_IDAT, AFTER_PLTE_BEFORE_IDAT, BEFORE_IDAT,   NA }
	Restrictions for chunk ordering, for ancillary chunks More...
Static Public Member Functions inherited from Hjg.Pngcs.Chunks.PngChunk
static void	FactoryRegister (String chunkId, Type type)
	Registers a Chunk ID in the factory, to instantiate a given type
static T	CloneChunk< T > (T chunk, ImageInfo info)
Protected Member Functions inherited from Hjg.Pngcs.Chunks.PngChunk
	PngChunk (String id, ImageInfo imgInfo)
	Constructs an empty chunk
Protected Attributes inherited from Hjg.Pngcs.Chunks.PngChunk
readonly ImageInfo	ImgInfo
	Image basic info, mostly for some checks

Detailed Description

pHYs chunk: http://www.w3.org/TR/PNG/#11pHYs

Constructor & Destructor Documentation

Hjg.Pngcs.Chunks.PngChunkPHYS.PngChunkPHYS

(

ImageInfo

info

)

Member Function Documentation

override ChunkOrderingConstraint Hjg.Pngcs.Chunks.PngChunkPHYS.GetOrderingConstraint ( )

virtual

Get ordering constrain

Returns

Implements Hjg.Pngcs.Chunks.PngChunk.

override ChunkRaw Hjg.Pngcs.Chunks.PngChunkPHYS.CreateRawChunk ( )

virtual

Serialization. Creates a Raw chunk, ready for write, from this chunk content

Implements Hjg.Pngcs.Chunks.PngChunk.

override void Hjg.Pngcs.Chunks.PngChunkPHYS.CloneDataFromRead ( PngChunk  other )

virtual

Override to make a copy (normally deep) from other chunk

Parameters

other

Implements Hjg.Pngcs.Chunks.PngChunk.

override void Hjg.Pngcs.Chunks.PngChunkPHYS.ParseFromRaw ( ChunkRaw  c )

virtual

Deserialization. Given a Raw chunk, just rad, fills this chunk content

Implements Hjg.Pngcs.Chunks.PngChunk.

double Hjg.Pngcs.Chunks.PngChunkPHYS.GetAsDpi

(

)

returns -1 if not in meters, or not equal

Returns

double [] Hjg.Pngcs.Chunks.PngChunkPHYS.GetAsDpi2

(

)

returns -1 if the physicial unit is unknown

Returns

void Hjg.Pngcs.Chunks.PngChunkPHYS.SetAsDpi

(

double

dpi

)

same in both directions

Parameters

dpi

void Hjg.Pngcs.Chunks.PngChunkPHYS.SetAsDpi2	(	double	dpix,
		double	dpiy
	)

Member Data Documentation

const String Hjg.Pngcs.Chunks.PngChunkPHYS.ID = ChunkHelper.pHYs

Property Documentation

long Hjg.Pngcs.Chunks.PngChunkPHYS.PixelsxUnitX

getset

long Hjg.Pngcs.Chunks.PngChunkPHYS.PixelsxUnitY

getset

int Hjg.Pngcs.Chunks.PngChunkPHYS.Units

getset

0: unknown 1:metre