QGIS API Documentation
2.4.0-Chugiak
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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 More... | |
virtual void | startRender (QgsRenderContext &context, const QgsFields &fields) |
virtual void | stopRender (QgsRenderContext &context) |
virtual QList< QString > | usedAttributes () |
virtual QString | dump () const |
for debugging More... | |
virtual QgsFeatureRendererV2 * | clone () |
virtual void | toSld (QDomDocument &doc, QDomElement &element) const |
used from subclasses to create SLD Rule elements following SLD v1.1 specs More... | |
virtual int | capabilities () |
returns bitwise OR-ed capabilities of the renderer More... | |
virtual QgsSymbolV2List | symbols () |
for symbol levels More... | |
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. More... | |
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 More... | |
virtual QgsLegendSymbologyList | legendSymbologyItems (QSize iconSize) |
return a list of symbology items for the legend More... | |
virtual QgsLegendSymbolList | legendSymbolItems (double scaleDenominator=-1, QString rule=QString()) |
return a list of item text / symbol More... | |
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. More... | |
void | updateSymbols (QgsSymbolV2 *sym) |
Update the all symbols but leave breaks and colors. More... | |
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 Q_DECL_DEPRECATED void | startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer) |
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 More... | |
void | setVertexMarkerAppearance (int type, int size) |
set type and size of editing vertex markers for subsequent rendering More... | |
virtual bool | willRenderFeature (QgsFeature &feat) |
return whether the renderer will render a feature or not. More... | |
virtual QgsSymbolV2List | symbolsForFeature (QgsFeature &feat) |
return list of symbols used for rendering the feature. More... | |
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 More... | |
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 | 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 | renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context) |
render editing vertex marker for a polyline More... | |
void | renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context) |
render editing vertex marker for a polygon More... | |
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) More... | |
QHash< QgsSymbolV2 *, QgsSymbolV2 * > | mTempSymbols |
temporary symbols, used for data-defined rotation and scaling More... | |
Protected Attributes inherited from QgsFeatureRendererV2 | |
QString | mType |
bool | mUsingSymbolLevels |
int | mCurrentVertexMarkerType |
The current type of editing marker. More... | |
int | mCurrentVertexMarkerSize |
The current size of editing marker. More... | |
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 63 of file qgsgraduatedsymbolrendererv2.h.
Enumerator | |
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EqualInterval | |
Quantile | |
Jenks | |
StdDev | |
Pretty | |
Custom |
Definition at line 113 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 1203 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolV2::clone(), and mRanges.
void QgsGraduatedSymbolRendererV2::addClass | ( | QgsRendererRangeV2 | range | ) |
Definition at line 1211 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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returns bitwise OR-ed capabilities of the renderer
Reimplemented from QgsFeatureRendererV2.
Definition at line 87 of file qgsgraduatedsymbolrendererv2.h.
References QgsFeatureRendererV2::Filter.
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Definition at line 91 of file qgsgraduatedsymbolrendererv2.h.
Referenced by legendSymbolItems(), legendSymbologyItems(), and QgsRuleBasedRendererV2::refineRuleRanges().
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Implements QgsFeatureRendererV2.
Definition at line 333 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 907 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 767 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 1221 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
void QgsGraduatedSymbolRendererV2::deleteClass | ( | int | idx | ) |
Definition at line 1216 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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for debugging
Reimplemented from QgsFeatureRendererV2.
Definition at line 325 of file qgsgraduatedsymbolrendererv2.cpp.
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Definition at line 155 of file qgsgraduatedsymbolrendererv2.h.
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return a list of item text / symbol
Reimplemented from QgsFeatureRendererV2.
Definition at line 1103 of file qgsgraduatedsymbolrendererv2.cpp.
References classAttribute(), QgsRendererRangeV2::label(), mRanges, and QgsRendererRangeV2::symbol().
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return a list of symbology items for the legend
Reimplemented from QgsFeatureRendererV2.
Definition at line 1082 of file qgsgraduatedsymbolrendererv2.cpp.
References classAttribute(), QgsRendererRangeV2::label(), ranges(), QgsRendererRangeV2::symbol(), and QgsSymbolLayerV2Utils::symbolPreviewPixmap().
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Definition at line 123 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 1226 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
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Definition at line 94 of file qgsgraduatedsymbolrendererv2.h.
Referenced by create(), createRenderer(), legendSymbologyItems(), and QgsRuleBasedRendererV2::refineRuleRanges().
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Reimplemented from QgsFeatureRendererV2.
Definition at line 1179 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 997 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 179 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), and setScaleMethod().
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Definition at line 92 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 156 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), create(), createRenderer(), and updateColorRamp().
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Definition at line 124 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), create(), createRenderer(), and readOldGraduatedSymbolRenderer().
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Reimplemented from QgsFeatureRendererV2.
Definition at line 1174 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionToExpression(), and mRotation.
void QgsGraduatedSymbolRendererV2::setScaleMethod | ( | QgsSymbolV2::ScaleMethod | scaleMethod | ) |
Definition at line 1194 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges, mScaleMethod, scaleMethod(), and QgsFeatureRendererV2::setScaleMethodToSymbol().
void QgsGraduatedSymbolRendererV2::setSizeScaleField | ( | QString | fieldOrExpression | ) |
Definition at line 1184 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionToExpression(), and mSizeScale.
void QgsGraduatedSymbolRendererV2::setSourceColorRamp | ( | QgsVectorColorRampV2 * | ramp | ) |
Definition at line 1139 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceColorRamp.
Referenced by clone(), create(), createRenderer(), and updateColorRamp().
void QgsGraduatedSymbolRendererV2::setSourceSymbol | ( | QgsSymbolV2 * | sym | ) |
Definition at line 1129 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceSymbol.
Referenced by clone(), create(), createRenderer(), and updateSymbols().
QString QgsGraduatedSymbolRendererV2::sizeScaleField | ( | ) | const |
Definition at line 1189 of file qgsgraduatedsymbolrendererv2.cpp.
References QgsSymbolLayerV2Utils::fieldOrExpressionFromExpression(), and mSizeScale.
Referenced by clone().
void QgsGraduatedSymbolRendererV2::sortByLabel | ( | Qt::SortOrder | order = Qt::AscendingOrder | ) |
Definition at line 1265 of file qgsgraduatedsymbolrendererv2.cpp.
References labelGreaterThan(), labelLessThan(), and mRanges.
void QgsGraduatedSymbolRendererV2::sortByValue | ( | Qt::SortOrder | order = Qt::AscendingOrder | ) |
Definition at line 1242 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges, QgsDebugMsg, valueGreaterThan(), and valueLessThan().
QgsVectorColorRampV2 * QgsGraduatedSymbolRendererV2::sourceColorRamp | ( | ) |
Definition at line 1134 of file qgsgraduatedsymbolrendererv2.cpp.
References mSourceColorRamp.
QgsSymbolV2 * QgsGraduatedSymbolRendererV2::sourceSymbol | ( | ) |
Definition at line 1125 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, QgsFields::fieldNameIndex(), mAttrName, mAttrNum, mExpression, mRanges, mRotation, mSizeScale, mTempSymbols, 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 368 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 351 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 1144 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 301 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
bool QgsGraduatedSymbolRendererV2::updateRangeLowerValue | ( | int | rangeIndex, |
double | value | ||
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Definition at line 317 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
bool QgsGraduatedSymbolRendererV2::updateRangeSymbol | ( | int | rangeIndex, |
QgsSymbolV2 * | symbol | ||
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Definition at line 293 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 309 of file qgsgraduatedsymbolrendererv2.cpp.
References mRanges.
void QgsGraduatedSymbolRendererV2::updateSymbols | ( | QgsSymbolV2 * | sym | ) |
Update the all symbols but leave breaks and colors.
Definition at line 1161 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 QgsExpression::hasParserError(), mAttrName, mRanges, mRotation, mSizeScale, QgsExpression::referencedColumns(), and QgsSymbolV2::usedAttributes().
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Definition at line 183 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 194 of file qgsgraduatedsymbolrendererv2.h.
Referenced by startRender(), and symbolForFeature().
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Definition at line 192 of file qgsgraduatedsymbolrendererv2.h.
Referenced by startRender(), and symbolForFeature().
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Definition at line 188 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 185 of file qgsgraduatedsymbolrendererv2.h.
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Definition at line 184 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 189 of file qgsgraduatedsymbolrendererv2.h.
Referenced by rotationField(), save(), setRotationField(), startRender(), symbolForFeature(), toSld(), and usedAttributes().
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Definition at line 191 of file qgsgraduatedsymbolrendererv2.h.
Referenced by save(), setScaleMethod(), and symbolForFeature().
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Definition at line 190 of file qgsgraduatedsymbolrendererv2.h.
Referenced by save(), setSizeScaleField(), sizeScaleField(), startRender(), symbolForFeature(), toSld(), and usedAttributes().
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Definition at line 187 of file qgsgraduatedsymbolrendererv2.h.
Referenced by clone(), save(), setSourceColorRamp(), and sourceColorRamp().
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Definition at line 186 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 197 of file qgsgraduatedsymbolrendererv2.h.
Referenced by startRender(), stopRender(), and symbolForFeature().