21 #ifndef QGSRASTERLAYER_H 22 #define QGSRASTERLAYER_H 24 #include "qgis_core.h" 111 : loadDefaultStyle( loadDefaultStyle )
112 , transformContext( transformContext )
116 bool loadDefaultStyle =
true;
137 bool skipCrsValidation =
false;
157 const QString &baseName = QString(),
158 const QString &providerType =
"gdal",
196 static bool isValidRasterFileName(
const QString &fileNameQString, QString &retError );
199 static bool isValidRasterFileName(
const QString &fileNameQString );
202 static QDateTime lastModified(
const QString &name );
208 Q_DECL_DEPRECATED
void setDataProvider(
const QString &provider )
SIP_DEPRECATED;
230 void setDataSource(
const QString &dataSource,
const QString &baseName,
const QString &provider,
const QgsDataProvider::ProviderOptions &options,
bool loadDefaultStyleFlag =
false )
override;
294 int bandCount()
const;
299 QString bandName(
int bandNoInt )
const;
315 void reload()
override;
319 void draw( QPainter *theQPainter,
328 QString htmlMetadata()
const override;
334 QPixmap paletteAsPixmap(
int bandNumber = 1 );
337 QString providerType()
const;
347 double rasterUnitsPerPixelX()
const;
356 double rasterUnitsPerPixelY()
const;
371 bool generateLookupTableFlag =
true );
389 bool defaultContrastEnhancementSettings(
394 void setDefaultContrastEnhancement();
396 QStringList subLayers()
const override;
401 QImage previewAsImage( QSize size,
const QColor &bgColor = Qt::white,
402 QImage::Format format = QImage::Format_ARGB32_Premultiplied );
404 void setLayerOrder(
const QStringList &layers )
override;
405 void setSubLayerVisibility(
const QString &name,
bool vis )
override;
406 QDateTime timestamp()
const override;
418 bool writeSld( QDomNode &node, QDomDocument &doc, QString &errorMessage,
const QgsStringMap &props =
QgsStringMap() )
const;
428 bool ignoreExtents()
const;
431 void showStatusMessage(
const QString &message );
444 bool writeSymbology( QDomNode &, QDomDocument &doc, QString &errorMessage,
446 bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage,
448 bool writeXml( QDomNode &layer_node, QDomDocument &doc,
const QgsReadWriteContext &context )
const override;
449 QString encodedSource(
const QString &source,
const QgsReadWriteContext &context )
const override;
450 QString decodedSource(
const QString &source,
const QString &provider,
const QgsReadWriteContext &context )
const override;
456 void closeDataProvider();
468 bool generateLookupTableFlag,
471 void computeMinMax(
int band,
476 double &min,
double &max );
479 const QString QSTRING_NOT_SET;
480 const QString TRSTRING_NOT_SET;
486 QDateTime mLastModified;
495 QgsRectangle mLastRectangleUsedByRefreshContrastEnhancementIfNeeded;
497 QDomDocument mOriginalStyleDocument;
498 QDomElement mOriginalStyleElement;
The class is used as a container of context for various read/write operations on other objects...
A rectangle specified with double values.
Base class for all map layer types.
LayerOptions(bool loadDefaultStyle=true, const QgsCoordinateTransformContext &transformContext=QgsCoordinateTransformContext())
Constructor for LayerOptions.
Base class for processing modules.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm MULTIPLE_BAND_MULTI_BYTE_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for multiple band raster of type different from Byte.
QgsHueSaturationFilter * hueSaturationFilter() const
Returns the raster's hue/saturation filter.
DrawingStyle
This enumerator describes the different kinds of drawing we can do.
Represents a raster layer.
QgsRasterPipe * pipe()
Returns the raster pipe.
Resample filter pipe for rasters.
QgsRasterRenderer * renderer() const
Returns the raster's renderer.
static const double SAMPLE_SIZE
Default sample size (number of pixels) for estimated statistics/histogram calculation.
An interface for classes which can visit style entity (e.g.
QMap< QString, QString > QgsStringMap
QgsBrightnessContrastFilter * brightnessFilter() const
Returns the raster's brightness/contrast filter.
ColorShadingAlgorithm
This enumerator describes the types of shading that can be used.
static const QgsRasterMinMaxOrigin::Limits MULTIPLE_BAND_SINGLE_BYTE_MIN_MAX_LIMITS
Default enhancement limits for multiple band raster of type Byte.
Perform transforms between map coordinates and device coordinates.
This class describes the origin of min/max values.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm SINGLE_BAND_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for single band raster.
LayerType rasterType()
Returns the raster layer type (which is a read only property).
Contains information about the context in which a coordinate transform is executed.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into allowing algorithms to be written in pure substantial changes are required in order to port existing x Processing algorithms for QGIS x The most significant changes are outlined not GeoAlgorithm For algorithms which operate on features one by consider subclassing the QgsProcessingFeatureBasedAlgorithm class This class allows much of the boilerplate code for looping over features from a vector layer to be bypassed and instead requires implementation of a processFeature method Ensure that your algorithm(or algorithm 's parent class) implements the new pure virtual createInstance(self) call
static const QgsRasterMinMaxOrigin::Limits SINGLE_BAND_MIN_MAX_LIMITS
Default enhancement limits for single band raster.
Limits
This enumerator describes the limits used to compute min/max values.
QList< QPair< QString, QColor > > QgsLegendColorList
ContrastEnhancementAlgorithm
This enumerator describes the types of contrast enhancement algorithms that can be used...
Contains information about the context of a rendering operation.
Setting options for creating vector data providers.
QgsRasterResampleFilter * resampleFilter() const
Returns the raster's resample filter.
Brightness/contrast filter pipe for rasters.
Color and saturation filter pipe for rasters.
bool isSpatial() const override
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated w...
Base class for utility classes that encapsulate information necessary for rendering of map layers...
This class provides details of the viewable area that a raster will be rendered into.
LayerType
This enumerator describes the type of raster layer.
Raster renderer pipe that applies colors to a raster.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm MULTIPLE_BAND_SINGLE_BYTE_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for multiple band raster of type Byte.
Setting options for loading raster layers.
static const QgsRasterMinMaxOrigin::Limits MULTIPLE_BAND_MULTI_BYTE_MIN_MAX_LIMITS
Default enhancement limits for multiple band raster of type different from Byte.
Base class for raster data providers.