QGIS API Documentation  3.20.0-Odense (decaadbb31)
Public Types | Public Member Functions | List of all members
QgsRasterPipe Class Reference

Base class for processing modules. More...

#include <qgsrasterpipe.h>

Public Types

enum class  ResamplingStage { ResampleFilter , 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 ()
 
QgsRasterInterfaceat (int idx) const
 
QgsBrightnessContrastFilterbrightnessFilter () const
 
bool canSetOn (int idx, bool on)
 Test if interface at index may be switched on/off. More...
 
QgsHueSaturationFilterhueSaturationFilter () 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...
 
QgsRasterInterfacelast () const
 
QgsRasterNullernuller () const
 
QgsRasterPipeoperator= (const QgsRasterPipe &rh)=delete
 
QgsRasterProjectorprojector () const
 
QgsRasterDataProviderprovider () 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...
 
QgsRasterRendererrenderer () 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...
 
QgsRasterResampleFilterresampleFilter () 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

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

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.


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