A symbol layer class for displaying displacement arrows based on point layer attributes.
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| QgsVectorFieldSymbolLayer () |
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| ~QgsVectorFieldSymbolLayer () |
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AngleOrientation | angleOrientation () const |
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AngleUnits | angleUnits () const |
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QgsVectorFieldSymbolLayer * | clone () const override |
| Shall be reimplemented by subclasses to create a deep copy of the instance. More...
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virtual QColor | color () const override |
| The fill color. More...
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const QgsMapUnitScale & | distanceMapUnitScale () const |
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QgsSymbolV2::OutputUnit | distanceUnit () const |
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void | drawPreviewIcon (QgsSymbolV2RenderContext &context, QSize size) override |
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QString | layerType () const override |
| Returns a string that represents this layer type. More...
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QgsMapUnitScale | mapUnitScale () const override |
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QgsSymbolV2::OutputUnit | outputUnit () const override |
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QgsStringMap | properties () const override |
| Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer. More...
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void | renderPoint (QPointF point, QgsSymbolV2RenderContext &context) override |
| Renders a marker at the specified point. More...
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double | scale () const |
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void | setAngleOrientation (AngleOrientation orientation) |
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void | setAngleUnits (AngleUnits units) |
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void | setColor (const QColor &color) override |
| The fill color. More...
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void | setDistanceMapUnitScale (const QgsMapUnitScale &scale) |
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void | setDistanceUnit (QgsSymbolV2::OutputUnit unit) |
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void | setMapUnitScale (const QgsMapUnitScale &scale) override |
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void | setOutputUnit (QgsSymbolV2::OutputUnit unit) override |
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void | setScale (double s) |
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bool | setSubSymbol (QgsSymbolV2 *symbol) override |
| set layer's subsymbol. takes ownership of the passed symbol More...
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void | setVectorFieldType (VectorFieldType type) |
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void | setXAttribute (const QString &attribute) |
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void | setYAttribute (const QString &attribute) |
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void | startRender (QgsSymbolV2RenderContext &context) override |
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void | stopRender (QgsSymbolV2RenderContext &context) override |
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QgsSymbolV2 * | subSymbol () override |
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void | toSld (QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const override |
| Writes the SLD element following the SLD v1.1 specs. More...
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QSet< QString > | usedAttributes () const override |
| Returns the set of attributes referenced by the layer. More...
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VectorFieldType | vectorFieldType () const |
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QString | xAttribute () const |
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QString | yAttribute () const |
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double | angle () const |
| Returns the rotation angle for the marker, in degrees clockwise from north. More...
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virtual QRectF | bounds (QPointF point, QgsSymbolV2RenderContext &context) |
| Returns the approximate bounding box of the marker symbol layer, taking into account any data defined overrides and offsets which are set for the marker layer. More...
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HorizontalAnchorPoint | horizontalAnchorPoint () const |
| Returns the horizontal anchor point for positioning the symbol. More...
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QPointF | offset () const |
| Returns the marker's offset, which is the horizontal and vertical displacement which the rendered marker will have from the original feature's geometry. More...
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const QgsMapUnitScale & | offsetMapUnitScale () const |
| Returns the map unit scale for the symbol's offset. More...
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QgsSymbolV2::OutputUnit | offsetUnit () const |
| Returns the units for the symbol's offset. More...
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QgsSymbolV2::ScaleMethod | scaleMethod () const |
| Returns the method to use for scaling the marker's size. More...
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void | setAngle (double angle) |
| Sets the rotation angle for the marker. More...
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void | setHorizontalAnchorPoint (HorizontalAnchorPoint h) |
| Sets the horizontal anchor point for positioning the symbol. More...
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void | setLineAngle (double lineAngle) |
| Sets the line angle modification for the symbol's angle. More...
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void | setOffset (QPointF offset) |
| Sets the marker's offset, which is the horizontal and vertical displacement which the rendered marker should have from the original feature's geometry. More...
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void | setOffsetMapUnitScale (const QgsMapUnitScale &scale) |
| Sets the map unit scale for the symbol's offset. More...
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void | setOffsetUnit (QgsSymbolV2::OutputUnit unit) |
| Sets the units for the symbol's offset. More...
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void | setScaleMethod (QgsSymbolV2::ScaleMethod scaleMethod) |
| Sets the method to use for scaling the marker's size. More...
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void | setSize (double size) |
| Sets the symbol size. More...
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void | setSizeMapUnitScale (const QgsMapUnitScale &scale) |
| Sets the map unit scale for the symbol's size. More...
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void | setSizeUnit (QgsSymbolV2::OutputUnit unit) |
| Sets the units for the symbol's size. More...
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void | setVerticalAnchorPoint (VerticalAnchorPoint v) |
| Sets the vertical anchor point for positioning the symbol. More...
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double | size () const |
| Returns the symbol size. More...
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const QgsMapUnitScale & | sizeMapUnitScale () const |
| Returns the map unit scale for the symbol's size. More...
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QgsSymbolV2::OutputUnit | sizeUnit () const |
| Returns the units for the symbol's size. More...
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VerticalAnchorPoint | verticalAnchorPoint () const |
| Returns the vertical anchor point for positioning the symbol. More...
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virtual void | writeSldMarker (QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const |
| Writes the symbol layer definition as a SLD XML element. More...
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virtual | ~QgsSymbolLayerV2 () |
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virtual Q_DECL_DEPRECATED const QgsExpression * | dataDefinedProperty (const QString &property) const |
| Returns a data defined expression for a property, if set. More...
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virtual Q_DECL_DEPRECATED QString | dataDefinedPropertyString (const QString &property) const |
| Returns a data defined expression for a property, if set. More...
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virtual double | dxfAngle (QgsSymbolV2RenderContext &context) const |
| get angle More...
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virtual QColor | dxfBrushColor (QgsSymbolV2RenderContext &context) const |
| get brush/fill color More...
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virtual Qt::BrushStyle | dxfBrushStyle () const |
| get brush/fill style More...
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virtual QColor | dxfColor (QgsSymbolV2RenderContext &context) const |
| get color More...
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virtual QVector< qreal > | dxfCustomDashPattern (QgsSymbolV2::OutputUnit &unit) const |
| get dash pattern More...
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virtual double | dxfOffset (const QgsDxfExport &e, QgsSymbolV2RenderContext &context) const |
| get offset More...
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virtual Qt::PenStyle | dxfPenStyle () const |
| get pen style More...
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virtual double | dxfWidth (const QgsDxfExport &e, QgsSymbolV2RenderContext &context) const |
| get line width More...
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virtual double | estimateMaxBleed () const |
| Returns the estimated maximum distance which the layer style will bleed outside the drawn shape. More...
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virtual Q_DECL_DEPRECATED QVariant | evaluateDataDefinedProperty (const QString &property, const QgsFeature *feature, const QVariant &defaultVal=QVariant(), bool *ok=nullptr) const |
| Evaluates the matching data defined property and returns the calculated value. More...
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virtual QVariant | evaluateDataDefinedProperty (const QString &property, const QgsSymbolV2RenderContext &context, const QVariant &defaultVal=QVariant(), bool *ok=nullptr) const |
| Evaluates the matching data defined property and returns the calculated value. More...
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virtual QColor | fillColor () const |
| Get fill color. More...
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virtual QgsDataDefined * | getDataDefinedProperty (const QString &property) const |
| Returns the data defined property corresponding to the specified property key. More...
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virtual bool | hasDataDefinedProperties () const |
| Checks whether the layer has any associated data defined properties. More...
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virtual bool | hasDataDefinedProperty (const QString &property) const |
| Checks whether the layer has a matching data defined property and if that property is currently actived. More...
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virtual bool | isCompatibleWithSymbol (QgsSymbolV2 *symbol) const |
| Returns if the layer can be used below the specified symbol. More...
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bool | isLocked () const |
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virtual QString | ogrFeatureStyle (double mmScaleFactor, double mapUnitScaleFactor) const |
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virtual QColor | outlineColor () const |
| Get outline color. More...
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QgsPaintEffect * | paintEffect () const |
| Returns the current paint effect for the layer. More...
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virtual void | removeDataDefinedProperties () |
| Removes all data defined properties from the layer and deletes associated objects. More...
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virtual void | removeDataDefinedProperty (const QString &property) |
| Removes a data defined property from the layer. More...
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int | renderingPass () const |
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virtual Q_DECL_DEPRECATED void | setDataDefinedProperty (const QString &property, const QString &expressionString) |
| Sets a data defined expression for a property. More...
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virtual void | setDataDefinedProperty (const QString &property, QgsDataDefined *dataDefined) |
| Sets a data defined property for the layer. More...
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virtual void | setFillColor (const QColor &color) |
| Set fill color. More...
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void | setLocked (bool locked) |
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virtual void | setOutlineColor (const QColor &color) |
| Set outline color. More...
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void | setPaintEffect (QgsPaintEffect *effect) |
| Sets the current paint effect for the layer. More...
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void | setRenderingPass (int renderingPass) |
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QgsSymbolV2::SymbolType | type () const |
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virtual bool | writeDxf (QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolV2RenderContext &context, QPointF shift=QPointF(0.0, 0.0)) const |
| write as DXF More...
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| QgsMarkerSymbolLayerV2 (bool locked=false) |
| Constructor for QgsMarkerSymbolLayerV2. More...
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void | markerOffset (QgsSymbolV2RenderContext &context, double &offsetX, double &offsetY) const |
| Calculates the required marker offset, including both the symbol offset and any displacement required to align with the marker's anchor point. More...
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void | markerOffset (QgsSymbolV2RenderContext &context, double width, double height, double &offsetX, double &offsetY) const |
| Calculates the required marker offset, including both the symbol offset and any displacement required to align with the marker's anchor point. More...
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void | markerOffset (QgsSymbolV2RenderContext &context, double width, double height, QgsSymbolV2::OutputUnit widthUnit, QgsSymbolV2::OutputUnit heightUnit, double &offsetX, double &offsetY, const QgsMapUnitScale &widthMapUnitScale, const QgsMapUnitScale &heightMapUnitScale) const |
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| QgsSymbolLayerV2 (QgsSymbolV2::SymbolType type, bool locked=false) |
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void | copyDataDefinedProperties (QgsSymbolLayerV2 *destLayer) const |
| Copies all data defined properties of this layer to another symbol layer. More...
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void | copyPaintEffect (QgsSymbolLayerV2 *destLayer) const |
| Copies paint effect of this layer to another symbol layer. More...
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virtual Q_DECL_DEPRECATED QgsExpression * | expression (const QString &property) const |
| Returns the data defined expression associated with a property. More...
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virtual Q_DECL_DEPRECATED void | prepareExpressions (const QgsFields *fields, double scale=-1.0) |
| Prepares all data defined property expressions for evaluation. More...
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virtual void | prepareExpressions (const QgsSymbolV2RenderContext &context) |
| Prepares all data defined property expressions for evaluation. More...
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void | restoreDataDefinedProperties (const QgsStringMap &stringMap) |
| Restores all data defined properties from string map. More...
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void | saveDataDefinedProperties (QgsStringMap &stringMap) const |
| Saves all data defined properties to a string map. More...
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static QPointF | _rotatedOffset (QPointF offset, double angle) |
| Adjusts a marker offset to account for rotation. More...
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double | mAngle |
| Marker rotation angle, in degrees clockwise from north. More...
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HorizontalAnchorPoint | mHorizontalAnchorPoint |
| Horizontal anchor point. More...
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double | mLineAngle |
| Line rotation angle (see setLineAngle() for details) More...
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QPointF | mOffset |
| Marker offset. More...
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QgsMapUnitScale | mOffsetMapUnitScale |
| Offset map unit scale. More...
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QgsSymbolV2::OutputUnit | mOffsetUnit |
| Offset units. More...
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QgsSymbolV2::ScaleMethod | mScaleMethod |
| Marker size scaling method. More...
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double | mSize |
| Marker size. More...
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QgsMapUnitScale | mSizeMapUnitScale |
| Marker size map unit scale. More...
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QgsSymbolV2::OutputUnit | mSizeUnit |
| Marker size unit. More...
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VerticalAnchorPoint | mVerticalAnchorPoint |
| Vertical anchor point. More...
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QColor | mColor |
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QMap< QString, QgsDataDefined *> | mDataDefinedProperties |
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QgsFields | mFields |
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bool | mLocked |
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QgsPaintEffect * | mPaintEffect |
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int | mRenderingPass |
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QgsSymbolV2::SymbolType | mType |
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static const QString | EXPR_ALPHA |
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static const QString | EXPR_ANGLE |
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static const QString | EXPR_BLUR_RADIUS |
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static const QString | EXPR_BORDER_COLOR |
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static const QString | EXPR_BORDER_STYLE |
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static const QString | EXPR_CAPSTYLE |
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static const QString | EXPR_CHAR |
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static const QString | EXPR_COLOR |
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static const QString | EXPR_COLOR2 |
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static const QString | EXPR_COLOR_BORDER |
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static const QString | EXPR_COORDINATE_MODE |
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static const QString | EXPR_CUSTOMDASH |
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static const QString | EXPR_DISPLACEMENT_X |
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static const QString | EXPR_DISPLACEMENT_Y |
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static const QString | EXPR_DISTANCE |
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static const QString | EXPR_DISTANCE_X |
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static const QString | EXPR_DISTANCE_Y |
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static const QString | EXPR_FILE |
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static const QString | EXPR_FILL |
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static const QString | EXPR_FILL_COLOR |
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static const QString | EXPR_FILL_STYLE |
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static const QString | EXPR_GRADIENT_TYPE |
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static const QString | EXPR_HEIGHT |
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static const QString | EXPR_HORIZONTAL_ANCHOR_POINT |
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static const QString | EXPR_IGNORE_RINGS |
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static const QString | EXPR_INTERVAL |
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static const QString | EXPR_JOIN_STYLE |
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static const QString | EXPR_JOINSTYLE |
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static const QString | EXPR_LINE_STYLE |
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static const QString | EXPR_LINEANGLE |
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static const QString | EXPR_LINEWIDTH |
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static const QString | EXPR_MAX_DISTANCE |
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static const QString | EXPR_NAME |
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static const QString | EXPR_OFFSET |
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static const QString | EXPR_OFFSET_ALONG_LINE |
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static const QString | EXPR_OUTLINE |
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static const QString | EXPR_OUTLINE_COLOR |
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static const QString | EXPR_OUTLINE_STYLE |
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static const QString | EXPR_OUTLINE_WIDTH |
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static const QString | EXPR_PLACEMENT |
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static const QString | EXPR_REFERENCE1_ISCENTROID |
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static const QString | EXPR_REFERENCE1_X |
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static const QString | EXPR_REFERENCE1_Y |
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static const QString | EXPR_REFERENCE2_ISCENTROID |
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static const QString | EXPR_REFERENCE2_X |
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static const QString | EXPR_REFERENCE2_Y |
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static const QString | EXPR_ROTATION |
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static const QString | EXPR_SIZE |
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static const QString | EXPR_SPREAD |
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static const QString | EXPR_SVG_FILE |
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static const QString | EXPR_SVG_FILL_COLOR |
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static const QString | EXPR_SVG_OUTLINE_COLOR |
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static const QString | EXPR_SVG_OUTLINE_WIDTH |
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static const QString | EXPR_SYMBOL_NAME |
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static const QString | EXPR_USE_WHOLE_SHAPE |
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static const QString | EXPR_VERTICAL_ANCHOR_POINT |
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static const QString | EXPR_WIDTH |
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static const QString | EXPR_WIDTH_BORDER |
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static const bool | selectFillBorder = false |
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static const bool | selectFillStyle = false |
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static const bool | selectionIsOpaque = true |
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A symbol layer class for displaying displacement arrows based on point layer attributes.
Definition at line 25 of file qgsvectorfieldsymbollayer.h.