GreymapWriter Class Reference

#include <GreymapWriter.hh>

Inheritance diagram for GreymapWriter:

Collaboration diagram for GreymapWriter:

List of all members.

Public Member Functions
	GreymapWriter (char const *name, ImageArray< coeff > &data)
virtual	~GreymapWriter (void)
void	write (void)
Protected Member Functions
virtual int	writefmt (void)=0
Private Member Functions
void	pixelize (void)

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Detailed Description

An abstract image writer. The image is being written putting its content from an {ImageArray} object into the file. A reference to the object holding the image is passed by the constructor, the actual object belongs to the outer world.

Definition at line 25 of file GreymapWriter.hh.

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Constructor & Destructor Documentation

GreymapWriter::GreymapWriter	(	char const *	name,
		ImageArray< coeff > &	data
	)		[inline]

Constructor. Only calls the mother class' constructor to initialize the {ImageArray} reference.

Parameters:

name	the file name, if {NULL}, then {stdout}
data	the reference to the {ImageArray} object

Definition at line 36 of file GreymapWriter.hh.

virtual GreymapWriter::~GreymapWriter

(

void

)

[inline, virtual]

Destructor - does nothing.

Definition at line 40 of file GreymapWriter.hh.

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Member Function Documentation

void GreymapWriter::pixelize

(

void

)

[private]

Fill the pixels array. This is not trivial as the coefficients may contain negative values that have to be represented as grey-scale pixels.

void GreymapWriter::write

(

void

)

Write the image. All steps independent of the file format will be performed, like testing for file writeability etc.

Exceptions:

ios_base::failure

a read error has occured [not supported by all libraries, so eventually {invalid_argument} instead]

virtual int GreymapWriter::writefmt

(

void

)

[protected, pure virtual]

Write different file formats (abstract). This is the method to be implemented for every image file format. It will be called by the {write ()} method.

Returns:

0 if successful, -1 on write error.

Implemented in RawWriter, PfgWriter, and PgmWriter.

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The documentation for this class was generated from the following file:

• GreymapWriter.hh