QgsRasterPipe Class Reference

Base class for processing modules. More...

#include <qgsrasterpipe.h>

Public Types
enum	ResamplingStage { ResamplingStage::ResampleFilter, ResamplingStage::Provider }
	Stage at which resampling occurs. More...
enum	Role {   UnknownRole = 0, ProviderRole = 1, RendererRole = 2, BrightnessRole = 3,   ResamplerRole = 4, ProjectorRole = 5, NullerRole = 6, HueSaturationRole = 7 }

Public Member Functions
	QgsRasterPipe ()=default
	Constructor for QgsRasterPipe. More...
	QgsRasterPipe (const QgsRasterPipe &pipe)
	~QgsRasterPipe ()
QgsRasterInterface *	at (int idx) const
QgsBrightnessContrastFilter *	brightnessFilter () const
bool	canSetOn (int idx, bool on)
	Test if interface at index may be switched on/off. More...
QgsHueSaturationFilter *	hueSaturationFilter () const
bool	insert (int idx, QgsRasterInterface *interface)
	Try to insert interface at specified index and connect if connection would fail, the interface is not inserted and false is returned. More...
QgsRasterInterface *	last () const
QgsRasterNuller *	nuller () const
QgsRasterPipe &	operator= (const QgsRasterPipe &rh)=delete
QgsRasterProjector *	projector () const
QgsRasterDataProvider *	provider () const
bool	remove (int idx)
	Remove and delete interface at given index if possible. More...
bool	remove (QgsRasterInterface *interface)
	Remove and delete interface from pipe if possible. More...
QgsRasterRenderer *	renderer () const
bool	replace (int idx, QgsRasterInterface *interface)
	Try to replace interface at specified index and connect if connection would fail, the interface is not inserted and false is returned. More...
QgsRasterResampleFilter *	resampleFilter () const
ResamplingStage	resamplingStage () const
	Returns which stage of the pipe should apply resampling. More...
bool	set (QgsRasterInterface *interface)
	Insert a new known interface in default place or replace interface of the same role if it already exists. More...
bool	setOn (int idx, bool on)
	Set interface at index on/off Returns true on success. More...
void	setResamplingStage (ResamplingStage stage)
	Select which stage of the pipe should apply resampling. More...
int	size () const

Detailed Description

Base class for processing modules.

Definition at line 46 of file qgsrasterpipe.h.

Member Enumeration Documentation

ResamplingStage

enum QgsRasterPipe::ResamplingStage

strong

Stage at which resampling occurs.

Since

QGIS 3.16

Enumerator
ResampleFilter	Resampling occurs in ResamplingFilter.
Provider	Resampling occurs in Provider.

Definition at line 138 of file qgsrasterpipe.h.

Role

enum QgsRasterPipe::Role

Enumerator
UnknownRole
ProviderRole
RendererRole
BrightnessRole
ResamplerRole
ProjectorRole
NullerRole
HueSaturationRole

Definition at line 50 of file qgsrasterpipe.h.

Constructor & Destructor Documentation

QgsRasterPipe() [1/2]

QgsRasterPipe::QgsRasterPipe ( )

default

Constructor for QgsRasterPipe.

QgsRasterPipe() [2/2]

QgsRasterPipe::QgsRasterPipe

(

const QgsRasterPipe &

pipe

)

Definition at line 32 of file qgsrasterpipe.cpp.

~QgsRasterPipe()

QgsRasterPipe::~QgsRasterPipe

(

)

Definition at line 54 of file qgsrasterpipe.cpp.

Member Function Documentation

at()

QgsRasterInterface* QgsRasterPipe::at ( int  idx ) const

inline

Definition at line 113 of file qgsrasterpipe.h.

brightnessFilter()

QgsBrightnessContrastFilter * QgsRasterPipe::brightnessFilter

(

)

const

Definition at line 248 of file qgsrasterpipe.cpp.

canSetOn()

bool QgsRasterPipe::canSetOn	(	int	idx,
		bool	on
	)

Test if interface at index may be switched on/off.

Definition at line 301 of file qgsrasterpipe.cpp.

hueSaturationFilter()

QgsHueSaturationFilter * QgsRasterPipe::hueSaturationFilter

(

)

const

Definition at line 253 of file qgsrasterpipe.cpp.

insert()

bool QgsRasterPipe::insert	(	int	idx,
		QgsRasterInterface *	interface
	)

Try to insert interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.

Definition at line 81 of file qgsrasterpipe.cpp.

last()

QgsRasterInterface* QgsRasterPipe::last ( ) const

inline

Definition at line 114 of file qgsrasterpipe.h.

nuller()

QgsRasterNuller * QgsRasterPipe::nuller

(

)

const

Definition at line 263 of file qgsrasterpipe.cpp.

operator=()

QgsRasterPipe& QgsRasterPipe::operator= ( const QgsRasterPipe &  rh )

delete

projector()

QgsRasterProjector * QgsRasterPipe::projector

(

)

const

Definition at line 258 of file qgsrasterpipe.cpp.

provider()

QgsRasterDataProvider * QgsRasterPipe::provider

(

)

const

Definition at line 233 of file qgsrasterpipe.cpp.

remove() [1/2]

bool QgsRasterPipe::remove

(

int

idx

)

Remove and delete interface at given index if possible.

Definition at line 268 of file qgsrasterpipe.cpp.

remove() [2/2]

bool QgsRasterPipe::remove

(

QgsRasterInterface *

interface

)

Remove and delete interface from pipe if possible.

Definition at line 294 of file qgsrasterpipe.cpp.

renderer()

QgsRasterRenderer * QgsRasterPipe::renderer

(

)

const

Definition at line 238 of file qgsrasterpipe.cpp.

replace()

bool QgsRasterPipe::replace	(	int	idx,
		QgsRasterInterface *	interface
	)

Try to replace interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.

Definition at line 107 of file qgsrasterpipe.cpp.

resampleFilter()

QgsRasterResampleFilter * QgsRasterPipe::resampleFilter

(

)

const

Definition at line 243 of file qgsrasterpipe.cpp.

resamplingStage()

ResamplingStage QgsRasterPipe::resamplingStage ( ) const

inline

Returns which stage of the pipe should apply resampling.

Since

QGIS 3.16

Definition at line 160 of file qgsrasterpipe.h.

set()

bool QgsRasterPipe::set

(

QgsRasterInterface *

interface

)

Insert a new known interface in default place or replace interface of the same role if it already exists.

Known interfaces are: QgsRasterDataProvider, QgsRasterRenderer, QgsRasterResampleFilter, QgsRasterProjector and their subclasses. For unknown interfaces it mus be explicitly specified position where it should be inserted using insert() method.

Definition at line 163 of file qgsrasterpipe.cpp.

setOn()

bool QgsRasterPipe::setOn	(	int	idx,
		bool	on
	)

Set interface at index on/off Returns true on success.

Definition at line 321 of file qgsrasterpipe.cpp.

setResamplingStage()

void QgsRasterPipe::setResamplingStage

(

ResamplingStage

stage

)

Select which stage of the pipe should apply resampling.

Provider resampling is only supported if provider sets ProviderHintCanPerformProviderResampling in providerCapabilities().

Since

QGIS 3.16

Definition at line 345 of file qgsrasterpipe.cpp.

size()

int QgsRasterPipe::size ( ) const

inline

Definition at line 112 of file qgsrasterpipe.h.

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

• /build/qgis-3.16.0+99unstable/src/core/raster/qgsrasterpipe.h
• /build/qgis-3.16.0+99unstable/src/core/raster/qgsrasterpipe.cpp