#include <qgsgraduatedsymbolrendererv2.h>

Inheritance diagram for QgsGraduatedSymbolRendererV2:

Public Types
enum	GraduatedMethod { GraduatedColor = 0, GraduatedSize = 1 }

enum	Mode { EqualInterval, Quantile, Jenks, StdDev, Pretty, Custom }

Public Types inherited from QgsFeatureRendererV2
enum	Capabilities { SymbolLevels = 1, RotationField = 1 << 1, MoreSymbolsPerFeature = 1 << 2, Filter = 1 << 3, ScaleDependent = 1 << 4 }

Public Member Functions
	QgsGraduatedSymbolRendererV2 (QString attrName=QString(), QgsRangeList ranges=QgsRangeList())

	QgsGraduatedSymbolRendererV2 (const QgsGraduatedSymbolRendererV2 &other)

virtual	~QgsGraduatedSymbolRendererV2 ()

void	addBreak (double breakValue, bool updateSymbols=true)
	Add a breakpoint by splitting existing classes so that the specified value becomes a break between two classes. More...

void	addClass (QgsSymbolV2 *symbol)

void	addClass (QgsRendererRangeV2 range)

void	addClass (double lower, double upper)

void	calculateLabelPrecision (bool updateRanges=true)
	Reset the label decimal places to a numberbased on the minimum class interval. More...

virtual int	capabilities () override
	returns bitwise OR-ed capabilities of the renderer More...

virtual void	checkLegendSymbolItem (QString key, bool state=true) override
	item in symbology was checked More...

QString	classAttribute () const

virtual QgsFeatureRendererV2 *	clone () const override

void	deleteAllClasses ()

void	deleteClass (int idx)

virtual QString	dump () const override
	for debugging More...

Q_DECL_DEPRECATED QList< double >	getDataValues (QgsVectorLayer *vlayer)
	Evaluates the data expression and returns the list of values from the layer. More...

GraduatedMethod	graduatedMethod () const
	return the method used for graduation (either size or color) More...

bool	invertedColorRamp ()

const QgsRendererRangeV2LabelFormat &	labelFormat () const
	Return the label format used to generate default classification labels. More...

virtual QString	legendClassificationAttribute () const override
	If supported by the renderer, return classification attribute for the use in legend. More...

virtual bool	legendSymbolItemChecked (QString key) override
	item in symbology was checked More...

virtual QgsLegendSymbolList	legendSymbolItems (double scaleDenominator=-1, QString rule=QString()) override
	return a list of item text / symbol More...

virtual bool	legendSymbolItemsCheckable () const override
	items of symbology items in legend should be checkable More...

QgsLegendSymbolListV2	legendSymbolItemsV2 () const override

virtual QgsLegendSymbologyList	legendSymbologyItems (QSize iconSize) override
	return a list of symbology items for the legend More...

double	maxSymbolSize () const
	return the max symbol size when graduated by size More...

double	minSymbolSize () const
	return the min symbol size when graduated by size More...

Mode	mode () const

void	moveClass (int from, int to)
	Moves the category at index position from to index position to. More...

virtual QgsSymbolV2 *	originalSymbolForFeature (QgsFeature &feature) override
	Return symbol for feature. More...

const QgsRangeList &	ranges () const

bool	rangesHaveGaps () const
	Tests whether classes assigned to the renderer have gaps between the ranges. More...

bool	rangesOverlap () const
	Tests whether classes assigned to the renderer have ranges which overlap. More...

QString	rotationField () const override
	return rotation field name (or empty string if not set or not supported by renderer) More...

virtual QDomElement	save (QDomDocument &doc) override
	store renderer info to XML element More...

QgsSymbolV2::ScaleMethod	scaleMethod () const

void	setClassAttribute (QString attr)

void	setGraduatedMethod (GraduatedMethod method)
	set the method used for graduation (either size or color) More...

void	setInvertedColorRamp (bool inverted)

void	setLabelFormat (const QgsRendererRangeV2LabelFormat &labelFormat, bool updateRanges=false)
	Set the label format used to generate default classification labels. More...

void	setMode (Mode mode)

void	setRotationField (QString fieldOrExpression) override
	sets rotation field of renderer (if supported by the renderer) More...

void	setScaleMethod (QgsSymbolV2::ScaleMethod scaleMethod)

void	setSizeScaleField (QString fieldOrExpression)

void	setSourceColorRamp (QgsVectorColorRampV2 *ramp)

void	setSourceSymbol (QgsSymbolV2 *sym)

void	setSymbolSizes (double minSize, double maxSize)
	set varying symbol size for classes More...

QString	sizeScaleField () const

void	sortByLabel (Qt::SortOrder order=Qt::AscendingOrder)

void	sortByValue (Qt::SortOrder order=Qt::AscendingOrder)

QgsVectorColorRampV2 *	sourceColorRamp ()

QgsSymbolV2 *	sourceSymbol ()

virtual void	startRender (QgsRenderContext &context, const QgsFields &fields) override

virtual void	stopRender (QgsRenderContext &context) override

virtual QgsSymbolV2 *	symbolForFeature (QgsFeature &feature) override
	to be overridden More...

virtual QgsSymbolV2List	symbols () override
	for symbol levels More...

virtual void	toSld (QDomDocument &doc, QDomElement &element) const override
	used from subclasses to create SLD Rule elements following SLD v1.1 specs More...

void	updateClasses (QgsVectorLayer *vlayer, Mode mode, int nclasses)
	Recalculate classes for a layer. More...

void	updateColorRamp (QgsVectorColorRampV2 *ramp=0, bool inverted=false)
	Update the color ramp used. More...

bool	updateRangeLabel (int rangeIndex, QString label)

bool	updateRangeLowerValue (int rangeIndex, double value)

bool	updateRangeRenderState (int rangeIndex, bool render)

bool	updateRangeSymbol (int rangeIndex, QgsSymbolV2 *symbol)

bool	updateRangeUpperValue (int rangeIndex, double value)

void	updateSymbols (QgsSymbolV2 *sym)
	Update all the symbols but leave breaks and colors. More...

virtual QList< QString >	usedAttributes () override

Public Member Functions inherited from QgsFeatureRendererV2
virtual	~QgsFeatureRendererV2 ()

virtual void	modifyRequestExtent (QgsRectangle &extent, QgsRenderContext &context)
	Allows for a renderer to modify the extent of a feature request prior to rendering. More...

virtual QgsSymbolV2List	originalSymbolsForFeature (QgsFeature &feat)
	Equivalent of originalSymbolsForFeature() call extended to support renderers that may use more symbols per feature - similar to symbolsForFeature() More...

QgsPaintEffect *	paintEffect () const
	Returns the current paint effect for the renderer. More...

virtual bool	renderFeature (QgsFeature &feature, QgsRenderContext &context, int layer=-1, bool selected=false, bool drawVertexMarker=false)

void	setPaintEffect (QgsPaintEffect *effect)
	Sets the current paint effect for the renderer. More...

void	setUsingSymbolLevels (bool usingSymbolLevels)

void	setVertexMarkerAppearance (int type, int size)
	set type and size of editing vertex markers for subsequent rendering More...

virtual Q_DECL_DEPRECATED void	startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer)

virtual QgsSymbolV2List	symbolsForFeature (QgsFeature &feat)
	return list of symbols used for rendering the feature. More...

QString	type () const

bool	usingSymbolLevels () const

virtual bool	willRenderFeature (QgsFeature &feat)
	return whether the renderer will render a feature or not. More...

virtual Q_DECL_DEPRECATED QDomElement	writeSld (QDomDocument &doc, const QgsVectorLayer &layer) const
	create the SLD UserStyle element following the SLD v1.1 specs More...

virtual QDomElement	writeSld (QDomDocument &doc, const QString &styleName) const
	create the SLD UserStyle element following the SLD v1.1 specs with the given name More...

Static Public Member Functions
static QgsGraduatedSymbolRendererV2 *	convertFromRenderer (const QgsFeatureRendererV2 *renderer)
	creates a QgsGraduatedSymbolRendererV2 from an existing renderer. More...

static QgsFeatureRendererV2 *	create (QDomElement &element)
	create renderer from XML element More...

static QgsGraduatedSymbolRendererV2 *	createRenderer (QgsVectorLayer vlayer, QString attrName, int classes, Mode mode, QgsSymbolV2 symbol, QgsVectorColorRampV2 *ramp, bool inverted=false, QgsRendererRangeV2LabelFormat legendFormat=QgsRendererRangeV2LabelFormat())

Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2 *	defaultRenderer (QGis::GeometryType geomType)
	return a new renderer - used by default in vector layers More...

static QgsFeatureRendererV2 *	load (QDomElement &symbologyElem)
	create a renderer from XML element More...

static QgsFeatureRendererV2 *	loadSld (const QDomNode &node, QGis::GeometryType geomType, QString &errorMessage)
	create a new renderer according to the information contained in the UserStyle element of a SLD style document More...

Protected Member Functions
QgsSymbolV2 *	symbolForValue (double value)

Protected Member Functions inherited from QgsFeatureRendererV2
	QgsFeatureRendererV2 (QString type)

void	copyPaintEffect (QgsFeatureRendererV2 *destRenderer) const
	Copies paint effect of this renderer to another renderer. More...

void	renderFeatureWithSymbol (QgsFeature &feature, QgsSymbolV2 *symbol, QgsRenderContext &context, int layer, bool selected, bool drawVertexMarker)

void	renderVertexMarker (QPointF &pt, QgsRenderContext &context)
	render editing vertex marker at specified point More...

void	renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context)
	render editing vertex marker for a polygon More...

void	renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context)
	render editing vertex marker for a polyline More...

void	setScaleMethodToSymbol (QgsSymbolV2 *symbol, int scaleMethod)

Static Protected Member Functions
static const char *	graduatedMethodStr (GraduatedMethod method)

Static Protected Member Functions inherited from QgsFeatureRendererV2
static const unsigned char *	_getLineString (QPolygonF &pts, QgsRenderContext &context, const unsigned char *wkb, bool clipToExtent=true)

static const unsigned char *	_getPoint (QPointF &pt, QgsRenderContext &context, const unsigned char *wkb)

static const unsigned char *	_getPolygon (QPolygonF &pts, QList< QPolygonF > &holes, QgsRenderContext &context, const unsigned char *wkb, bool clipToExtent=true)

static void	convertSymbolRotation (QgsSymbolV2 *symbol, const QString &field)

static void	convertSymbolSizeScale (QgsSymbolV2 *symbol, QgsSymbolV2::ScaleMethod method, const QString &field)

Protected Attributes
QString	mAttrName

int	mAttrNum
	attribute index (derived from attribute name in startRender) More...

bool	mCounting

QScopedPointer< QgsExpression >	mExpression

GraduatedMethod	mGraduatedMethod

bool	mInvertedColorRamp

QgsRendererRangeV2LabelFormat	mLabelFormat

Mode	mMode

QgsRangeList	mRanges

QScopedPointer< QgsExpression >	mRotation

QgsSymbolV2::ScaleMethod	mScaleMethod

QScopedPointer< QgsExpression >	mSizeScale

QScopedPointer < QgsVectorColorRampV2 >	mSourceColorRamp

QScopedPointer< QgsSymbolV2 >	mSourceSymbol

QHash< QgsSymbolV2 , QgsSymbolV2 >	mTempSymbols
	temporary symbols, used for data-defined rotation and scaling More...

Protected Attributes inherited from QgsFeatureRendererV2
int	mCurrentVertexMarkerSize
	The current size of editing marker. More...

int	mCurrentVertexMarkerType
	The current type of editing marker. More...

QgsPaintEffect *	mPaintEffect

QString	mType

bool	mUsingSymbolLevels

Detailed Description

Definition at line 113 of file qgsgraduatedsymbolrendererv2.h.

Member Enumeration Documentation

enum QgsGraduatedSymbolRendererV2::GraduatedMethod

Enumerator
GraduatedColor
GraduatedSize

Definition at line 288 of file qgsgraduatedsymbolrendererv2.h.

enum QgsGraduatedSymbolRendererV2::Mode

Enumerator
EqualInterval
Quantile
Jenks
StdDev
Pretty
Custom

Definition at line 191 of file qgsgraduatedsymbolrendererv2.h.

Constructor & Destructor Documentation

QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2	(	QString	attrName = `QString()`,
		QgsRangeList	ranges = `QgsRangeList()`
	)

Definition at line 283 of file qgsgraduatedsymbolrendererv2.cpp.

QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2 ( const QgsGraduatedSymbolRendererV2 & other )

QgsGraduatedSymbolRendererV2::~QgsGraduatedSymbolRendererV2 ( )

virtual

Definition at line 298 of file qgsgraduatedsymbolrendererv2.cpp.

Member Function Documentation

void QgsGraduatedSymbolRendererV2::addBreak	(	double	breakValue,
		bool	updateSymbols = `true`
	)

Add a breakpoint by splitting existing classes so that the specified value becomes a break between two classes.

Parameters

breakValue	position to insert break
updateSymbols	set to true to reapply ramp colors to the new symbol ranges

Note: added in QGIS 2.9

Definition at line 1432 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::addClass ( QgsSymbolV2 * symbol )

Definition at line 1418 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::addClass ( QgsRendererRangeV2 range )

Note: available in python bindings as addClassRange

Definition at line 1471 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::addClass	(	double	lower,
		double	upper
	)

Note: available in python bindings as addClassLowerUpper

Definition at line 1425 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::calculateLabelPrecision ( bool updateRanges = true )

Reset the label decimal places to a numberbased on the minimum class interval.

Parameters

updateRanges if true then ranges currently using the default label will be updated

Note: Added in 2.6

Definition at line 1499 of file qgsgraduatedsymbolrendererv2.cpp.

virtual int QgsGraduatedSymbolRendererV2::capabilities ( )

inlineoverridevirtual

returns bitwise OR-ed capabilities of the renderer

Reimplemented from QgsFeatureRendererV2.

Definition at line 139 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::checkLegendSymbolItem	(	QString	key,
		bool	state = `true`
	)

overridevirtual

item in symbology was checked

Note: added in 2.6

Reimplemented from QgsFeatureRendererV2.

Definition at line 1409 of file qgsgraduatedsymbolrendererv2.cpp.

QString QgsGraduatedSymbolRendererV2::classAttribute ( ) const

inline

Definition at line 143 of file qgsgraduatedsymbolrendererv2.h.

QgsFeatureRendererV2 * QgsGraduatedSymbolRendererV2::clone ( ) const

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 508 of file qgsgraduatedsymbolrendererv2.cpp.

QgsGraduatedSymbolRendererV2 * QgsGraduatedSymbolRendererV2::convertFromRenderer ( const QgsFeatureRendererV2 * renderer )

static

creates a QgsGraduatedSymbolRendererV2 from an existing renderer.

Note: added in 2.6

Returns: a new renderer if the conversion was possible, otherwise 0.

Definition at line 1630 of file qgsgraduatedsymbolrendererv2.cpp.

QgsFeatureRendererV2 * QgsGraduatedSymbolRendererV2::create ( QDomElement & element )

static

create renderer from XML element

Definition at line 940 of file qgsgraduatedsymbolrendererv2.cpp.

QgsGraduatedSymbolRendererV2 * QgsGraduatedSymbolRendererV2::createRenderer	(	QgsVectorLayer *	vlayer,
		QString	attrName,
		int	classes,
		Mode	mode,
		QgsSymbolV2 *	symbol,
		QgsVectorColorRampV2 *	ramp,
		bool	inverted = `false`,
		QgsRendererRangeV2LabelFormat	legendFormat = `QgsRendererRangeV2LabelFormat()`
	)

static

Definition at line 798 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::deleteAllClasses ( )

Definition at line 1481 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::deleteClass ( int idx )

Definition at line 1476 of file qgsgraduatedsymbolrendererv2.cpp.

QString QgsGraduatedSymbolRendererV2::dump ( ) const

overridevirtual

for debugging

Reimplemented from QgsFeatureRendererV2.

Definition at line 500 of file qgsgraduatedsymbolrendererv2.cpp.

QList< double > QgsGraduatedSymbolRendererV2::getDataValues ( QgsVectorLayer * vlayer )

Evaluates the data expression and returns the list of values from the layer.

Parameters

vlayer The layer for which to evaluate the expression

Note: Added in 2.6

Deprecated:: use QgsVectorLayer::getDoubleValues instead

Definition at line 820 of file qgsgraduatedsymbolrendererv2.cpp.

GraduatedMethod QgsGraduatedSymbolRendererV2::graduatedMethod ( ) const

inline

return the method used for graduation (either size or color)

Note: added in 2.10

Definition at line 292 of file qgsgraduatedsymbolrendererv2.h.

const char * QgsGraduatedSymbolRendererV2::graduatedMethodStr ( GraduatedMethod method )

staticprotected

Definition at line 1662 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::invertedColorRamp ( )

inline

Note: added in 2.1

Definition at line 264 of file qgsgraduatedsymbolrendererv2.h.

const QgsRendererRangeV2LabelFormat& QgsGraduatedSymbolRendererV2::labelFormat ( ) const

inline

Return the label format used to generate default classification labels.

Note: Added in 2.6

Definition at line 218 of file qgsgraduatedsymbolrendererv2.h.

virtual QString QgsGraduatedSymbolRendererV2::legendClassificationAttribute ( ) const

inlineoverridevirtual

If supported by the renderer, return classification attribute for the use in legend.

Note: added in 2.6

Reimplemented from QgsFeatureRendererV2.

Definition at line 321 of file qgsgraduatedsymbolrendererv2.h.

bool QgsGraduatedSymbolRendererV2::legendSymbolItemChecked ( QString key )

overridevirtual

item in symbology was checked

Note: added in 2.6

Reimplemented from QgsFeatureRendererV2.

Definition at line 1399 of file qgsgraduatedsymbolrendererv2.cpp.

QgsLegendSymbolList QgsGraduatedSymbolRendererV2::legendSymbolItems	(	double	scaleDenominator = `-1`,
		QString	rule = `QString()`
	)

overridevirtual

return a list of item text / symbol

Note: not available in python bindings

Reimplemented from QgsFeatureRendererV2.

Definition at line 1226 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::legendSymbolItemsCheckable ( ) const

overridevirtual

items of symbology items in legend should be checkable

Note: added in 2.5

Reimplemented from QgsFeatureRendererV2.

Definition at line 1394 of file qgsgraduatedsymbolrendererv2.cpp.

QgsLegendSymbolListV2 QgsGraduatedSymbolRendererV2::legendSymbolItemsV2 ( ) const

overridevirtual

Note: added in 2.10

Reimplemented from QgsFeatureRendererV2.

Definition at line 1176 of file qgsgraduatedsymbolrendererv2.cpp.

QgsLegendSymbologyList QgsGraduatedSymbolRendererV2::legendSymbologyItems ( QSize iconSize )

overridevirtual

return a list of symbology items for the legend

Reimplemented from QgsFeatureRendererV2.

Definition at line 1163 of file qgsgraduatedsymbolrendererv2.cpp.

double QgsGraduatedSymbolRendererV2::maxSymbolSize ( ) const

return the max symbol size when graduated by size

Note: added in 2.10

Definition at line 1275 of file qgsgraduatedsymbolrendererv2.cpp.

double QgsGraduatedSymbolRendererV2::minSymbolSize ( ) const

return the min symbol size when graduated by size

Note: added in 2.10

Definition at line 1260 of file qgsgraduatedsymbolrendererv2.cpp.

Mode QgsGraduatedSymbolRendererV2::mode ( ) const

inline

Definition at line 201 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::moveClass	(	int	from,
		int	to
	)

Moves the category at index position from to index position to.

Definition at line 1528 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::originalSymbolForFeature ( QgsFeature & feature )

overridevirtual

Return symbol for feature.

The difference compared to symbolForFeature() is that it returns original symbol which can be used as an identifier for renderer's rule - the former may return a temporary replacement of a symbol for use in rendering.

Note: added in 2.6

Reimplemented from QgsFeatureRendererV2.

Definition at line 351 of file qgsgraduatedsymbolrendererv2.cpp.

const QgsRangeList& QgsGraduatedSymbolRendererV2::ranges ( ) const

inline

Definition at line 146 of file qgsgraduatedsymbolrendererv2.h.

bool QgsGraduatedSymbolRendererV2::rangesHaveGaps ( ) const

Tests whether classes assigned to the renderer have gaps between the ranges.

Returns: true if ranges have gaps

Note: added in QGIS 2.10

Definition at line 1586 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::rangesOverlap ( ) const

Tests whether classes assigned to the renderer have ranges which overlap.

Returns: true if ranges overlap

Note: added in QGIS 2.10

Definition at line 1558 of file qgsgraduatedsymbolrendererv2.cpp.

QString QgsGraduatedSymbolRendererV2::rotationField ( ) const

overridevirtual

return rotation field name (or empty string if not set or not supported by renderer)

Reimplemented from QgsFeatureRendererV2.

Definition at line 1369 of file qgsgraduatedsymbolrendererv2.cpp.

QDomElement QgsGraduatedSymbolRendererV2::save ( QDomDocument & doc )

overridevirtual

store renderer info to XML element

Reimplemented from QgsFeatureRendererV2.

Definition at line 1069 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2::ScaleMethod QgsGraduatedSymbolRendererV2::scaleMethod ( ) const

inline

Definition at line 305 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setClassAttribute ( QString attr )

inline

Definition at line 144 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setGraduatedMethod ( GraduatedMethod method )

inline

set the method used for graduation (either size or color)

Note: added in 2.10

Definition at line 296 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setInvertedColorRamp ( bool inverted )

inline

Definition at line 265 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setLabelFormat	(	const QgsRendererRangeV2LabelFormat &	labelFormat,
		bool	updateRanges = `false`
	)

Set the label format used to generate default classification labels.

Parameters

labelFormat	The string appended to classification labels
updateRanges	If true then ranges ending with the old unit string are updated to the new.

Note: Added in 2.6

Definition at line 1486 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setMode ( Mode mode )

inline

Definition at line 202 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setRotationField ( QString fieldName )

overridevirtual

sets rotation field of renderer (if supported by the renderer)

Reimplemented from QgsFeatureRendererV2.

Definition at line 1364 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setScaleMethod ( QgsSymbolV2::ScaleMethod scaleMethod )

Definition at line 1384 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setSizeScaleField ( QString fieldOrExpression )

Definition at line 1374 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setSourceColorRamp ( QgsVectorColorRampV2 * ramp )

Definition at line 1255 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setSourceSymbol ( QgsSymbolV2 * sym )

Definition at line 1245 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::setSymbolSizes	(	double	minSize,
		double	maxSize
	)

set varying symbol size for classes

Note: the classes must already be set so that symbols exist; added in 2.10

Definition at line 1290 of file qgsgraduatedsymbolrendererv2.cpp.

QString QgsGraduatedSymbolRendererV2::sizeScaleField ( ) const

Definition at line 1379 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::sortByLabel ( Qt::SortOrder order = Qt::AscendingOrder )

Definition at line 1618 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::sortByValue ( Qt::SortOrder order = Qt::AscendingOrder )

Definition at line 1545 of file qgsgraduatedsymbolrendererv2.cpp.

QgsVectorColorRampV2 * QgsGraduatedSymbolRendererV2::sourceColorRamp ( )

Definition at line 1250 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::sourceSymbol ( )

Definition at line 1241 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::startRender	(	QgsRenderContext &	context,
		const QgsFields &	fields
	)

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 372 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::stopRender ( QgsRenderContext & context )

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 404 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::symbolForFeature ( QgsFeature & feature )

overridevirtual

to be overridden

Parameters

feature feature

Returns: returns pointer to symbol or 0 if symbol was not found

Implements QgsFeatureRendererV2.

Definition at line 319 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::symbolForValue ( double value )

protected

Definition at line 303 of file qgsgraduatedsymbolrendererv2.cpp.

QgsSymbolV2List QgsGraduatedSymbolRendererV2::symbols ( )

overridevirtual

for symbol levels

Implements QgsFeatureRendererV2.

Definition at line 547 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::toSld	(	QDomDocument &	doc,
		QDomElement &	element
	)		const

overridevirtual

used from subclasses to create SLD Rule elements following SLD v1.1 specs

Reimplemented from QgsFeatureRendererV2.

Definition at line 529 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::updateClasses	(	QgsVectorLayer *	vlayer,
		Mode	mode,
		int	nclasses
	)

Recalculate classes for a layer.

Parameters

vlayer	The layer being rendered (from which data values are calculated)
mode	The calculation mode
nclasses	The number of classes to calculate (approximate for some modes)

Note: Added in 2.6

Definition at line 826 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::updateColorRamp	(	QgsVectorColorRampV2 *	ramp = `0`,
		bool	inverted = `false`
	)

Update the color ramp used.

Also updates all symbols colors. Doesn't alter current breaks.

Definition at line 1306 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::updateRangeLabel	(	int	rangeIndex,
		QString	label
	)

Definition at line 462 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::updateRangeLowerValue	(	int	rangeIndex,
		double	value
	)

Definition at line 481 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::updateRangeRenderState	(	int	rangeIndex,
		bool	render
	)

Note: added in 2.5

Definition at line 492 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::updateRangeSymbol	(	int	rangeIndex,
		QgsSymbolV2 *	symbol
	)

Definition at line 454 of file qgsgraduatedsymbolrendererv2.cpp.

bool QgsGraduatedSymbolRendererV2::updateRangeUpperValue	(	int	rangeIndex,
		double	value
	)

Definition at line 470 of file qgsgraduatedsymbolrendererv2.cpp.

void QgsGraduatedSymbolRendererV2::updateSymbols ( QgsSymbolV2 * sym )

Update all the symbols but leave breaks and colors.

Definition at line 1336 of file qgsgraduatedsymbolrendererv2.cpp.

QList< QString > QgsGraduatedSymbolRendererV2::usedAttributes ( )

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 425 of file qgsgraduatedsymbolrendererv2.cpp.

Member Data Documentation

QString QgsGraduatedSymbolRendererV2::mAttrName

protected

Definition at line 329 of file qgsgraduatedsymbolrendererv2.h.

int QgsGraduatedSymbolRendererV2::mAttrNum

protected

attribute index (derived from attribute name in startRender)

Definition at line 343 of file qgsgraduatedsymbolrendererv2.h.

bool QgsGraduatedSymbolRendererV2::mCounting

protected

Definition at line 344 of file qgsgraduatedsymbolrendererv2.h.

QScopedPointer<QgsExpression> QgsGraduatedSymbolRendererV2::mExpression

protected

Definition at line 340 of file qgsgraduatedsymbolrendererv2.h.

GraduatedMethod QgsGraduatedSymbolRendererV2::mGraduatedMethod

protected

Definition at line 341 of file qgsgraduatedsymbolrendererv2.h.

bool QgsGraduatedSymbolRendererV2::mInvertedColorRamp

protected

Definition at line 334 of file qgsgraduatedsymbolrendererv2.h.

QgsRendererRangeV2LabelFormat QgsGraduatedSymbolRendererV2::mLabelFormat

protected

Definition at line 335 of file qgsgraduatedsymbolrendererv2.h.

Mode QgsGraduatedSymbolRendererV2::mMode

protected

Definition at line 331 of file qgsgraduatedsymbolrendererv2.h.

QgsRangeList QgsGraduatedSymbolRendererV2::mRanges

protected

Definition at line 330 of file qgsgraduatedsymbolrendererv2.h.

QScopedPointer<QgsExpression> QgsGraduatedSymbolRendererV2::mRotation

protected

Definition at line 337 of file qgsgraduatedsymbolrendererv2.h.

QgsSymbolV2::ScaleMethod QgsGraduatedSymbolRendererV2::mScaleMethod

protected

Definition at line 339 of file qgsgraduatedsymbolrendererv2.h.

QScopedPointer<QgsExpression> QgsGraduatedSymbolRendererV2::mSizeScale

protected

Definition at line 338 of file qgsgraduatedsymbolrendererv2.h.

QScopedPointer<QgsVectorColorRampV2> QgsGraduatedSymbolRendererV2::mSourceColorRamp

protected

Definition at line 333 of file qgsgraduatedsymbolrendererv2.h.

QScopedPointer<QgsSymbolV2> QgsGraduatedSymbolRendererV2::mSourceSymbol

protected

Definition at line 332 of file qgsgraduatedsymbolrendererv2.h.

QHash<QgsSymbolV2*, QgsSymbolV2*> QgsGraduatedSymbolRendererV2::mTempSymbols

protected

temporary symbols, used for data-defined rotation and scaling

Definition at line 347 of file qgsgraduatedsymbolrendererv2.h.

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

/tmp/buildd/qgis-2.10.1+git20150822+dd4475c+20trusty/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.h
/tmp/buildd/qgis-2.10.1+git20150822+dd4475c+20trusty/src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp

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