QGIS API Documentation
2.2.0-Valmiera
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#include <qgsgraduatedsymbolrendererv2.h>
Public Types | |
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 () |
virtual QgsSymbolV2 * | symbolForFeature (QgsFeature &feature) |
to be overridden | |
virtual void | startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer) |
virtual void | stopRender (QgsRenderContext &context) |
virtual QList< QString > | usedAttributes () |
virtual QString | dump () const |
for debugging | |
virtual QgsFeatureRendererV2 * | clone () |
virtual void | toSld (QDomDocument &doc, QDomElement &element) const |
used from subclasses to create SLD Rule elements following SLD v1.1 specs | |
virtual int | capabilities () |
returns bitwise OR-ed capabilities of the renderer | |
virtual QgsSymbolV2List | symbols () |
for symbol levels | |
QString | classAttribute () const |
void | setClassAttribute (QString attr) |
const QgsRangeList & | ranges () |
bool | updateRangeSymbol (int rangeIndex, QgsSymbolV2 *symbol) |
bool | updateRangeLabel (int rangeIndex, QString label) |
bool | updateRangeUpperValue (int rangeIndex, double value) |
bool | updateRangeLowerValue (int rangeIndex, double value) |
void | addClass (QgsSymbolV2 *symbol) |
void | addClass (QgsRendererRangeV2 range) |
void | deleteClass (int idx) |
void | deleteAllClasses () |
void | moveClass (int from, int to) |
Moves the category at index position from to index position to. | |
void | sortByValue (Qt::SortOrder order=Qt::AscendingOrder) |
void | sortByLabel (Qt::SortOrder order=Qt::AscendingOrder) |
Mode | mode () const |
void | setMode (Mode mode) |
virtual QDomElement | save (QDomDocument &doc) |
store renderer info to XML element | |
virtual QgsLegendSymbologyList | legendSymbologyItems (QSize iconSize) |
return a list of symbology items for the legend | |
virtual QgsLegendSymbolList | legendSymbolItems (double scaleDenominator=-1, QString rule=QString()) |
return a list of item text / symbol | |
QgsSymbolV2 * | sourceSymbol () |
void | setSourceSymbol (QgsSymbolV2 *sym) |
QgsVectorColorRampV2 * | sourceColorRamp () |
void | setSourceColorRamp (QgsVectorColorRampV2 *ramp) |
bool | invertedColorRamp () |
void | setInvertedColorRamp (bool inverted) |
void | updateColorRamp (QgsVectorColorRampV2 *ramp, bool inverted=false) |
Update the color ramp used. | |
void | updateSymbols (QgsSymbolV2 *sym) |
Update the all symbols but leave breaks and colors. | |
void | setRotationField (QString fieldOrExpression) |
QString | rotationField () const |
void | setSizeScaleField (QString fieldOrExpression) |
QString | sizeScaleField () const |
void | setScaleMethod (QgsSymbolV2::ScaleMethod scaleMethod) |
QgsSymbolV2::ScaleMethod | scaleMethod () const |
Public Member Functions inherited from QgsFeatureRendererV2 | |
QString | type () const |
virtual | ~QgsFeatureRendererV2 () |
virtual bool | renderFeature (QgsFeature &feature, QgsRenderContext &context, int layer=-1, bool selected=false, bool drawVertexMarker=false) |
bool | usingSymbolLevels () const |
void | setUsingSymbolLevels (bool usingSymbolLevels) |
virtual QDomElement | writeSld (QDomDocument &doc, const QgsVectorLayer &layer) const |
create the SLD UserStyle element following the SLD v1.1 specs | |
void | setVertexMarkerAppearance (int type, int size) |
set type and size of editing vertex markers for subsequent rendering | |
virtual bool | willRenderFeature (QgsFeature &feat) |
return whether the renderer will render a feature or not. | |
virtual QgsSymbolV2List | symbolsForFeature (QgsFeature &feat) |
return list of symbols used for rendering the feature. |
Static Public Member Functions | |
static QgsGraduatedSymbolRendererV2 * | createRenderer (QgsVectorLayer *vlayer, QString attrName, int classes, Mode mode, QgsSymbolV2 *symbol, QgsVectorColorRampV2 *ramp, bool inverted=false) |
static QgsFeatureRendererV2 * | create (QDomElement &element) |
create renderer from XML element | |
Static Public Member Functions inherited from QgsFeatureRendererV2 | |
static QgsFeatureRendererV2 * | defaultRenderer (QGis::GeometryType geomType) |
return a new renderer - used by default in vector layers | |
static QgsFeatureRendererV2 * | load (QDomElement &symbologyElem) |
create a renderer from XML element | |
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 |
Protected Member Functions | |
QgsSymbolV2 * | symbolForValue (double value) |
Protected Member Functions inherited from QgsFeatureRendererV2 | |
QgsFeatureRendererV2 (QString type) | |
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 | |
void | renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context) |
render editing vertex marker for a polyline | |
void | renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context) |
render editing vertex marker for a polygon | |
void | setScaleMethodToSymbol (QgsSymbolV2 *symbol, int scaleMethod) |
Protected Attributes | |
QString | mAttrName |
QgsRangeList | mRanges |
Mode | mMode |
QScopedPointer< QgsSymbolV2 > | mSourceSymbol |
QScopedPointer < QgsVectorColorRampV2 > | mSourceColorRamp |
bool | mInvertedColorRamp |
QScopedPointer< QgsExpression > | mRotation |
QScopedPointer< QgsExpression > | mSizeScale |
QgsSymbolV2::ScaleMethod | mScaleMethod |
QScopedPointer< QgsExpression > | mExpression |
int | mAttrNum |
attribute index (derived from attribute name in startRender) | |
QHash< QgsSymbolV2 *, QgsSymbolV2 * > | mTempSymbols |
temporary symbols, used for data-defined rotation and scaling | |
Protected Attributes inherited from QgsFeatureRendererV2 | |
QString | mType |
bool | mUsingSymbolLevels |
int | mCurrentVertexMarkerType |
The current type of editing marker. | |
int | mCurrentVertexMarkerSize |
The current size of editing marker. |
Additional Inherited Members | |
Static Protected Member Functions inherited from QgsFeatureRendererV2 | |
static const unsigned char * | _getPoint (QPointF &pt, QgsRenderContext &context, const unsigned char *wkb) |
static const unsigned char * | _getLineString (QPolygonF &pts, QgsRenderContext &context, const unsigned char *wkb) |
static const unsigned char * | _getPolygon (QPolygonF &pts, QList< QPolygonF > &holes, QgsRenderContext &context, const unsigned char *wkb) |
Definition at line 64 of file qgsgraduatedsymbolrendererv2.h.
Definition at line 114 of file qgsgraduatedsymbolrendererv2.h.
QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2 | ( | QString | attrName = QString() , |
QgsRangeList | ranges = QgsRangeList() |
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Definition at line 146 of file qgsgraduatedsymbolrendererv2.cpp.
Referenced by clone(), create(), and createRenderer().
QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2 | ( | const QgsGraduatedSymbolRendererV2 & | other | ) |
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Definition at line 157 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
void QgsGraduatedSymbolRendererV2::addClass | ( | QgsSymbolV2 * | symbol | ) |
Definition at line 1208 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolV2::clone(), and mRanges.
void QgsGraduatedSymbolRendererV2::addClass | ( | QgsRendererRangeV2 | range | ) |
Definition at line 1216 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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returns bitwise OR-ed capabilities of the renderer
Reimplemented from QgsFeatureRendererV2.
Definition at line 88 of file qgsgraduatedsymbolrendererv2.h.
References QgsFeatureRendererV2::Filter.
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Definition at line 92 of file qgsgraduatedsymbolrendererv2.h.
Referenced by legendSymbolItems(), legendSymbologyItems(), and QgsRuleBasedRendererV2::refineRuleRanges().
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Implements QgsFeatureRendererV2.
Definition at line 329 of file qgsgraduatedsymbolrendererv2.cpp.
References mAttrName, mInvertedColorRamp, mMode, mRanges, mSourceColorRamp, mSourceSymbol, QgsGraduatedSymbolRendererV2(), rotationField(), scaleMethod(), setInvertedColorRamp(), setMode(), setRotationField(), setScaleMethod(), setSizeScaleField(), setSourceColorRamp(), setSourceSymbol(), QgsFeatureRendererV2::setUsingSymbolLevels(), sizeScaleField(), and QgsFeatureRendererV2::usingSymbolLevels().
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create renderer from XML element
Definition at line 903 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::clearSymbolMap(), QgsSymbolLayerV2Utils::decodeScaleMethod(), EqualInterval, Jenks, QgsSymbolLayerV2Utils::loadColorRamp(), QgsSymbolLayerV2Utils::loadSymbols(), Pretty, QgsGraduatedSymbolRendererV2(), Quantile, ranges(), setInvertedColorRamp(), setMode(), setRotationField(), setScaleMethod(), setSizeScaleField(), setSourceColorRamp(), setSourceSymbol(), and StdDev.
Referenced by QgsRendererV2Registry::QgsRendererV2Registry().
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Definition at line 763 of file qgsgraduatedsymbolrendererv2.cpp.
References _calcEqualIntervalBreaks(), _calcJenksBreaks(), _calcPrettyBreaks(), _calcQuantileBreaks(), _calcStdDevBreaks(), QgsFeature::attribute(), QgsVectorColorRampV2::clone(), QgsSymbolV2::clone(), QgsVectorColorRampV2::color(), EqualInterval, QgsVectorLayer::fieldNameIndex(), QgsVectorLayer::getFeatures(), Jenks, MathUtils::lower(), QgsVectorLayer::maximumValue(), QgsVectorLayer::minimumValue(), QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsVectorLayer::pendingFields(), Pretty, QgsDebugMsg, QgsGraduatedSymbolRendererV2(), Quantile, ranges(), QgsSymbolV2::setColor(), setInvertedColorRamp(), setMode(), setSourceColorRamp(), setSourceSymbol(), and StdDev.
void QgsGraduatedSymbolRendererV2::deleteAllClasses | ( | ) |
Definition at line 1226 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
void QgsGraduatedSymbolRendererV2::deleteClass | ( | int | idx | ) |
Definition at line 1221 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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for debugging
Reimplemented from QgsFeatureRendererV2.
Definition at line 321 of file qgsgraduatedsymbolrendererv2.cpp.
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Definition at line 156 of file qgsgraduatedsymbolrendererv2.h.
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return a list of item text / symbol
Reimplemented from QgsFeatureRendererV2.
Definition at line 1099 of file qgsgraduatedsymbolrendererv2.cpp.
References classAttribute(), QgsRendererRangeV2::label(), mRanges, mRotation, mSizeScale, mTempSymbols, and QgsRendererRangeV2::symbol().
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return a list of symbology items for the legend
Reimplemented from QgsFeatureRendererV2.
Definition at line 1078 of file qgsgraduatedsymbolrendererv2.cpp.
References classAttribute(), QgsRendererRangeV2::label(), ranges(), QgsRendererRangeV2::symbol(), and QgsSymbolLayerV2Utils::symbolPreviewPixmap().
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Definition at line 124 of file qgsgraduatedsymbolrendererv2.h.
void QgsGraduatedSymbolRendererV2::moveClass | ( | int | from, |
int | to | ||
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Moves the category at index position from to index position to.
Definition at line 1231 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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Definition at line 95 of file qgsgraduatedsymbolrendererv2.h.
Referenced by create(), createRenderer(), legendSymbologyItems(), and QgsRuleBasedRendererV2::refineRuleRanges().
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Reimplemented from QgsFeatureRendererV2.
Definition at line 1184 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionFromExpression(), and mRotation.
Referenced by clone().
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store renderer info to XML element
Reimplemented from QgsFeatureRendererV2.
Definition at line 993 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::encodeScaleMethod(), EqualInterval, QgsSymbolLayerV2Utils::fieldOrExpressionFromExpression(), Jenks, QgsRendererRangeV2::label(), QgsRendererRangeV2::lowerValue(), mAttrName, mInvertedColorRamp, mMode, mRanges, mRotation, mScaleMethod, mSizeScale, mSourceColorRamp, mSourceSymbol, QgsFeatureRendererV2::mUsingSymbolLevels, Pretty, Quantile, RENDERER_TAG_NAME, QgsSymbolLayerV2Utils::saveColorRamp(), QgsSymbolLayerV2Utils::saveSymbols(), StdDev, QgsRendererRangeV2::symbol(), symbols(), and QgsRendererRangeV2::upperValue().
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Definition at line 180 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), and setScaleMethod().
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Definition at line 93 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 157 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), create(), createRenderer(), and updateColorRamp().
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Definition at line 125 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), create(), createRenderer(), and readOldGraduatedSymbolRenderer().
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Reimplemented from QgsFeatureRendererV2.
Definition at line 1179 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionToExpression(), and mRotation.
void QgsGraduatedSymbolRendererV2::setScaleMethod | ( | QgsSymbolV2::ScaleMethod | scaleMethod | ) |
Definition at line 1199 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges, mScaleMethod, scaleMethod(), and QgsFeatureRendererV2::setScaleMethodToSymbol().
void QgsGraduatedSymbolRendererV2::setSizeScaleField | ( | QString | fieldOrExpression | ) |
Definition at line 1189 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionToExpression(), and mSizeScale.
void QgsGraduatedSymbolRendererV2::setSourceColorRamp | ( | QgsVectorColorRampV2 * | ramp | ) |
Definition at line 1144 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceColorRamp.
Referenced by clone(), create(), createRenderer(), and updateColorRamp().
void QgsGraduatedSymbolRendererV2::setSourceSymbol | ( | QgsSymbolV2 * | sym | ) |
Definition at line 1134 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceSymbol.
Referenced by clone(), create(), createRenderer(), and updateSymbols().
QString QgsGraduatedSymbolRendererV2::sizeScaleField | ( | ) | const |
Definition at line 1194 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionFromExpression(), and mSizeScale.
Referenced by clone().
void QgsGraduatedSymbolRendererV2::sortByLabel | ( | Qt::SortOrder | order = Qt::AscendingOrder | ) |
Definition at line 1270 of file qgsgraduatedsymbolrendererv2.cpp.
References labelGreaterThan(), labelLessThan(), and mRanges.
void QgsGraduatedSymbolRendererV2::sortByValue | ( | Qt::SortOrder | order = Qt::AscendingOrder | ) |
Definition at line 1247 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges, QgsDebugMsg, valueGreaterThan(), and valueLessThan().
QgsVectorColorRampV2 * QgsGraduatedSymbolRendererV2::sourceColorRamp | ( | ) |
Definition at line 1139 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceColorRamp.
QgsSymbolV2 * QgsGraduatedSymbolRendererV2::sourceSymbol | ( | ) |
Definition at line 1130 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceSymbol.
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Implements QgsFeatureRendererV2.
Definition at line 221 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolV2::clone(), QgsSymbolV2::DataDefinedRotation, QgsSymbolV2::DataDefinedSizeScale, QgsVectorLayer::fieldNameIndex(), mAttrName, mAttrNum, mExpression, mRanges, mRotation, mSizeScale, mTempSymbols, QgsVectorLayer::pendingFields(), QgsSymbolV2::setRenderHints(), and QgsSymbolV2::startRender().
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Implements QgsFeatureRendererV2.
Definition at line 248 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges, and mTempSymbols.
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to be overridden
feature | feature |
Implements QgsFeatureRendererV2.
Definition at line 173 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsFeature::attributes(), QgsSymbolV2::Line, QgsSymbolV2::Marker, mAttrNum, mExpression, mRotation, mScaleMethod, mSizeScale, mTempSymbols, QgsMarkerSymbolV2::setAngle(), QgsMarkerSymbolV2::setScaleMethod(), QgsMarkerSymbolV2::setSize(), QgsLineSymbolV2::setWidth(), size, symbolForValue(), and QgsSymbolV2::type().
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Definition at line 162 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
Referenced by symbolForFeature().
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for symbol levels
Implements QgsFeatureRendererV2.
Definition at line 364 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
Referenced by save().
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used from subclasses to create SLD Rule elements following SLD v1.1 specs
Reimplemented from QgsFeatureRendererV2.
Definition at line 347 of file qgsgraduatedsymbolrendererv2.cpp.
References mAttrName, mRanges, mRotation, and mSizeScale.
void QgsGraduatedSymbolRendererV2::updateColorRamp | ( | QgsVectorColorRampV2 * | ramp, |
bool | inverted = false |
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Update the color ramp used.
Also updates all symbols colors. Doesn't alter current breaks.
Definition at line 1149 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolV2::clone(), QgsVectorColorRampV2::color(), mRanges, QgsSymbolV2::setColor(), setInvertedColorRamp(), setSourceColorRamp(), QgsRendererRangeV2::symbol(), and updateRangeSymbol().
bool QgsGraduatedSymbolRendererV2::updateRangeLabel | ( | int | rangeIndex, |
QString | label | ||
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Definition at line 297 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
bool QgsGraduatedSymbolRendererV2::updateRangeLowerValue | ( | int | rangeIndex, |
double | value | ||
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Definition at line 313 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
bool QgsGraduatedSymbolRendererV2::updateRangeSymbol | ( | int | rangeIndex, |
QgsSymbolV2 * | symbol | ||
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Definition at line 289 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
Referenced by updateColorRamp(), and updateSymbols().
bool QgsGraduatedSymbolRendererV2::updateRangeUpperValue | ( | int | rangeIndex, |
double | value | ||
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Definition at line 305 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
void QgsGraduatedSymbolRendererV2::updateSymbols | ( | QgsSymbolV2 * | sym | ) |
Update the all symbols but leave breaks and colors.
Definition at line 1166 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolV2::clone(), QgsSymbolV2::color(), mRanges, QgsSymbolV2::setColor(), setSourceSymbol(), QgsRendererRangeV2::symbol(), and updateRangeSymbol().
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Implements QgsFeatureRendererV2.
Definition at line 264 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionToExpression(), mAttrName, mRanges, mRotation, mSizeScale, and QgsSymbolV2::usedAttributes().
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Definition at line 184 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), dump(), save(), startRender(), toSld(), and usedAttributes().
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attribute index (derived from attribute name in startRender)
Definition at line 195 of file qgsgraduatedsymbolrendererv2.h.
Referenced by startRender(), and symbolForFeature().
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Definition at line 193 of file qgsgraduatedsymbolrendererv2.h.
Referenced by startRender(), and symbolForFeature().
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Definition at line 189 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 186 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 185 of file qgsgraduatedsymbolrendererv2.h.
Referenced by addClass(), clone(), deleteAllClasses(), deleteClass(), dump(), legendSymbolItems(), moveClass(), save(), setScaleMethod(), sortByLabel(), sortByValue(), startRender(), stopRender(), symbolForValue(), symbols(), toSld(), updateColorRamp(), updateRangeLabel(), updateRangeLowerValue(), updateRangeSymbol(), updateRangeUpperValue(), updateSymbols(), usedAttributes(), and ~QgsGraduatedSymbolRendererV2().
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Definition at line 190 of file qgsgraduatedsymbolrendererv2.h.
Referenced by legendSymbolItems(), rotationField(), save(), setRotationField(), startRender(), symbolForFeature(), toSld(), and usedAttributes().
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Definition at line 192 of file qgsgraduatedsymbolrendererv2.h.
Referenced by save(), setScaleMethod(), and symbolForFeature().
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Definition at line 191 of file qgsgraduatedsymbolrendererv2.h.
Referenced by legendSymbolItems(), save(), setSizeScaleField(), sizeScaleField(), startRender(), symbolForFeature(), toSld(), and usedAttributes().
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Definition at line 188 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), save(), setSourceColorRamp(), and sourceColorRamp().
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Definition at line 187 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), save(), setSourceSymbol(), and sourceSymbol().
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temporary symbols, used for data-defined rotation and scaling
Definition at line 198 of file qgsgraduatedsymbolrendererv2.h.
Referenced by legendSymbolItems(), startRender(), stopRender(), and symbolForFeature().