QGIS API Documentation  2.17.0-Master (f49f7ce)
Public Types | Public Member Functions | Static Public Member Functions | List of all members
QgsVectorFieldSymbolLayer Class Reference

A symbol layer class for displaying displacement arrows based on point layer attributes. More...

#include <qgsvectorfieldsymbollayer.h>

Inheritance diagram for QgsVectorFieldSymbolLayer:
Inheritance graph
[legend]

Public Types

enum  AngleOrientation { ClockwiseFromNorth = 0, CounterclockwiseFromEast }
 
enum  AngleUnits { Degrees = 0, Radians }
 
enum  VectorFieldType { Cartesian = 0, Polar, Height }
 
- Public Types inherited from QgsMarkerSymbolLayerV2
enum  HorizontalAnchorPoint { Left, HCenter, Right }
 Symbol horizontal anchor points. More...
 
enum  VerticalAnchorPoint { Top, VCenter, Bottom }
 Symbol vertical anchor points. More...
 

Public Member Functions

 QgsVectorFieldSymbolLayer ()
 
 ~QgsVectorFieldSymbolLayer ()
 
AngleOrientation angleOrientation () const
 
AngleUnits angleUnits () const
 
QgsVectorFieldSymbolLayerclone () const override
 Shall be reimplemented by subclasses to create a deep copy of the instance. More...
 
virtual QColor color () const override
 The fill color. More...
 
const QgsMapUnitScaledistanceMapUnitScale () const
 
QgsSymbolV2::OutputUnit distanceUnit () const
 
void drawPreviewIcon (QgsSymbolV2RenderContext &context, QSize size) override
 
QString layerType () const override
 Returns a string that represents this layer type. More...
 
QgsMapUnitScale mapUnitScale () const override
 
QgsSymbolV2::OutputUnit outputUnit () const override
 
QgsStringMap properties () const override
 Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer. More...
 
void renderPoint (QPointF point, QgsSymbolV2RenderContext &context) override
 Renders a marker at the specified point. More...
 
double scale () const
 
void setAngleOrientation (AngleOrientation orientation)
 
void setAngleUnits (AngleUnits units)
 
void setColor (const QColor &color) override
 The fill color. More...
 
void setDistanceMapUnitScale (const QgsMapUnitScale &scale)
 
void setDistanceUnit (QgsSymbolV2::OutputUnit unit)
 
void setMapUnitScale (const QgsMapUnitScale &scale) override
 
void setOutputUnit (QgsSymbolV2::OutputUnit unit) override
 
void setScale (double s)
 
bool setSubSymbol (QgsSymbolV2 *symbol) override
 set layer's subsymbol. takes ownership of the passed symbol More...
 
void setVectorFieldType (VectorFieldType type)
 
void setXAttribute (const QString &attribute)
 
void setYAttribute (const QString &attribute)
 
void startRender (QgsSymbolV2RenderContext &context) override
 
void stopRender (QgsSymbolV2RenderContext &context) override
 
QgsSymbolV2subSymbol () override
 
void toSld (QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const override
 Writes the SLD element following the SLD v1.1 specs. More...
 
QSet< QStringusedAttributes () const override
 Returns the set of attributes referenced by the layer. More...
 
VectorFieldType vectorFieldType () const
 
QString xAttribute () const
 
QString yAttribute () const
 
- Public Member Functions inherited from QgsMarkerSymbolLayerV2
double angle () const
 Returns the rotation angle for the marker, in degrees clockwise from north. More...
 
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...
 
HorizontalAnchorPoint horizontalAnchorPoint () const
 Returns the horizontal anchor point for positioning the symbol. More...
 
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...
 
const QgsMapUnitScaleoffsetMapUnitScale () const
 Returns the map unit scale for the symbol's offset. More...
 
QgsSymbolV2::OutputUnit offsetUnit () const
 Returns the units for the symbol's offset. More...
 
QgsSymbolV2::ScaleMethod scaleMethod () const
 Returns the method to use for scaling the marker's size. More...
 
void setAngle (double angle)
 Sets the rotation angle for the marker. More...
 
void setHorizontalAnchorPoint (HorizontalAnchorPoint h)
 Sets the horizontal anchor point for positioning the symbol. More...
 
void setLineAngle (double lineAngle)
 Sets the line angle modification for the symbol's angle. More...
 
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...
 
void setOffsetMapUnitScale (const QgsMapUnitScale &scale)
 Sets the map unit scale for the symbol's offset. More...
 
void setOffsetUnit (QgsSymbolV2::OutputUnit unit)
 Sets the units for the symbol's offset. More...
 
void setScaleMethod (QgsSymbolV2::ScaleMethod scaleMethod)
 Sets the method to use for scaling the marker's size. More...
 
void setSize (double size)
 Sets the symbol size. More...
 
void setSizeMapUnitScale (const QgsMapUnitScale &scale)
 Sets the map unit scale for the symbol's size. More...
 
void setSizeUnit (QgsSymbolV2::OutputUnit unit)
 Sets the units for the symbol's size. More...
 
void setVerticalAnchorPoint (VerticalAnchorPoint v)
 Sets the vertical anchor point for positioning the symbol. More...
 
double size () const
 Returns the symbol size. More...
 
const QgsMapUnitScalesizeMapUnitScale () const
 Returns the map unit scale for the symbol's size. More...
 
QgsSymbolV2::OutputUnit sizeUnit () const
 Returns the units for the symbol's size. More...
 
VerticalAnchorPoint verticalAnchorPoint () const
 Returns the vertical anchor point for positioning the symbol. More...
 
virtual void writeSldMarker (QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const
 Writes the symbol layer definition as a SLD XML element. More...
 
- Public Member Functions inherited from QgsSymbolLayerV2
virtual ~QgsSymbolLayerV2 ()
 
virtual Q_DECL_DEPRECATED const QgsExpressiondataDefinedProperty (const QString &property) const
 Returns a data defined expression for a property, if set. More...
 
virtual Q_DECL_DEPRECATED QString dataDefinedPropertyString (const QString &property) const
 Returns a data defined expression for a property, if set. More...
 
virtual double dxfAngle (QgsSymbolV2RenderContext &context) const
 get angle More...
 
virtual QColor dxfBrushColor (QgsSymbolV2RenderContext &context) const
 get brush/fill color More...
 
virtual Qt::BrushStyle dxfBrushStyle () const
 get brush/fill style More...
 
virtual QColor dxfColor (QgsSymbolV2RenderContext &context) const
 get color More...
 
virtual QVector< qreal > dxfCustomDashPattern (QgsSymbolV2::OutputUnit &unit) const
 get dash pattern More...
 
virtual double dxfOffset (const QgsDxfExport &e, QgsSymbolV2RenderContext &context) const
 get offset More...
 
virtual Qt::PenStyle dxfPenStyle () const
 get pen style More...
 
virtual double dxfWidth (const QgsDxfExport &e, QgsSymbolV2RenderContext &context) const
 get line width More...
 
virtual double estimateMaxBleed () const
 Returns the estimated maximum distance which the layer style will bleed outside the drawn shape. More...
 
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...
 
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...
 
virtual QColor fillColor () const
 Get fill color. More...
 
virtual QgsDataDefinedgetDataDefinedProperty (const QString &property) const
 Returns the data defined property corresponding to the specified property key. More...
 
virtual bool hasDataDefinedProperties () const
 Checks whether the layer has any associated data defined properties. More...
 
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...
 
virtual bool isCompatibleWithSymbol (QgsSymbolV2 *symbol) const
 Returns if the layer can be used below the specified symbol. More...
 
bool isLocked () const
 
virtual QString ogrFeatureStyle (double mmScaleFactor, double mapUnitScaleFactor) const
 
virtual QColor outlineColor () const
 Get outline color. More...
 
QgsPaintEffectpaintEffect () const
 Returns the current paint effect for the layer. More...
 
virtual void removeDataDefinedProperties ()
 Removes all data defined properties from the layer and deletes associated objects. More...
 
virtual void removeDataDefinedProperty (const QString &property)
 Removes a data defined property from the layer. More...
 
int renderingPass () const
 
virtual Q_DECL_DEPRECATED void setDataDefinedProperty (const QString &property, const QString &expressionString)
 Sets a data defined expression for a property. More...
 
virtual void setDataDefinedProperty (const QString &property, QgsDataDefined *dataDefined)
 Sets a data defined property for the layer. More...
 
virtual void setFillColor (const QColor &color)
 Set fill color. More...
 
void setLocked (bool locked)
 
virtual void setOutlineColor (const QColor &color)
 Set outline color. More...
 
void setPaintEffect (QgsPaintEffect *effect)
 Sets the current paint effect for the layer. More...
 
void setRenderingPass (int renderingPass)
 
QgsSymbolV2::SymbolType type () const
 
virtual bool writeDxf (QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolV2RenderContext &context, QPointF shift=QPointF(0.0, 0.0)) const
 write as DXF More...
 

Static Public Member Functions

static QgsSymbolLayerV2create (const QgsStringMap &properties=QgsStringMap())
 
static QgsSymbolLayerV2createFromSld (QDomElement &element)
 

Additional Inherited Members

- Protected Member Functions inherited from QgsMarkerSymbolLayerV2
 QgsMarkerSymbolLayerV2 (bool locked=false)
 Constructor for QgsMarkerSymbolLayerV2. More...
 
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...
 
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...
 
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
 
- Protected Member Functions inherited from QgsSymbolLayerV2
 QgsSymbolLayerV2 (QgsSymbolV2::SymbolType type, bool locked=false)
 
void copyDataDefinedProperties (QgsSymbolLayerV2 *destLayer) const
 Copies all data defined properties of this layer to another symbol layer. More...
 
void copyPaintEffect (QgsSymbolLayerV2 *destLayer) const
 Copies paint effect of this layer to another symbol layer. More...
 
virtual Q_DECL_DEPRECATED QgsExpressionexpression (const QString &property) const
 Returns the data defined expression associated with a property. More...
 
virtual Q_DECL_DEPRECATED void prepareExpressions (const QgsFields *fields, double scale=-1.0)
 Prepares all data defined property expressions for evaluation. More...
 
virtual void prepareExpressions (const QgsSymbolV2RenderContext &context)
 Prepares all data defined property expressions for evaluation. More...
 
void restoreDataDefinedProperties (const QgsStringMap &stringMap)
 Restores all data defined properties from string map. More...
 
void saveDataDefinedProperties (QgsStringMap &stringMap) const
 Saves all data defined properties to a string map. More...
 
- Static Protected Member Functions inherited from QgsMarkerSymbolLayerV2
static QPointF _rotatedOffset (QPointF offset, double angle)
 Adjusts a marker offset to account for rotation. More...
 
- Protected Attributes inherited from QgsMarkerSymbolLayerV2
double mAngle
 Marker rotation angle, in degrees clockwise from north. More...
 
HorizontalAnchorPoint mHorizontalAnchorPoint
 Horizontal anchor point. More...
 
double mLineAngle
 Line rotation angle (see setLineAngle() for details) More...
 
QPointF mOffset
 Marker offset. More...
 
QgsMapUnitScale mOffsetMapUnitScale
 Offset map unit scale. More...
 
QgsSymbolV2::OutputUnit mOffsetUnit
 Offset units. More...
 
QgsSymbolV2::ScaleMethod mScaleMethod
 Marker size scaling method. More...
 
double mSize
 Marker size. More...
 
QgsMapUnitScale mSizeMapUnitScale
 Marker size map unit scale. More...
 
QgsSymbolV2::OutputUnit mSizeUnit
 Marker size unit. More...
 
VerticalAnchorPoint mVerticalAnchorPoint
 Vertical anchor point. More...
 
- Protected Attributes inherited from QgsSymbolLayerV2
QColor mColor
 
QMap< QString, QgsDataDefined * > mDataDefinedProperties
 
QgsFields mFields
 
bool mLocked
 
QgsPaintEffectmPaintEffect
 
int mRenderingPass
 
QgsSymbolV2::SymbolType mType
 
- Static Protected Attributes inherited from QgsSymbolLayerV2
static const QString EXPR_ALPHA
 
static const QString EXPR_ANGLE
 
static const QString EXPR_BLUR_RADIUS
 
static const QString EXPR_BORDER_COLOR
 
static const QString EXPR_BORDER_STYLE
 
static const QString EXPR_CAPSTYLE
 
static const QString EXPR_CHAR
 
static const QString EXPR_COLOR
 
static const QString EXPR_COLOR2
 
static const QString EXPR_COLOR_BORDER
 
static const QString EXPR_COORDINATE_MODE
 
static const QString EXPR_CUSTOMDASH
 
static const QString EXPR_DISPLACEMENT_X
 
static const QString EXPR_DISPLACEMENT_Y
 
static const QString EXPR_DISTANCE
 
static const QString EXPR_DISTANCE_X
 
static const QString EXPR_DISTANCE_Y
 
static const QString EXPR_FILE
 
static const QString EXPR_FILL
 
static const QString EXPR_FILL_COLOR
 
static const QString EXPR_FILL_STYLE
 
static const QString EXPR_GRADIENT_TYPE
 
static const QString EXPR_HEIGHT
 
static const QString EXPR_HORIZONTAL_ANCHOR_POINT
 
static const QString EXPR_IGNORE_RINGS
 
static const QString EXPR_INTERVAL
 
static const QString EXPR_JOIN_STYLE
 
static const QString EXPR_JOINSTYLE
 
static const QString EXPR_LINE_STYLE
 
static const QString EXPR_LINEANGLE
 
static const QString EXPR_LINEWIDTH
 
static const QString EXPR_MAX_DISTANCE
 
static const QString EXPR_NAME
 
static const QString EXPR_OFFSET
 
static const QString EXPR_OFFSET_ALONG_LINE
 
static const QString EXPR_OUTLINE
 
static const QString EXPR_OUTLINE_COLOR
 
static const QString EXPR_OUTLINE_STYLE
 
static const QString EXPR_OUTLINE_WIDTH
 
static const QString EXPR_PLACEMENT
 
static const QString EXPR_REFERENCE1_ISCENTROID
 
static const QString EXPR_REFERENCE1_X
 
static const QString EXPR_REFERENCE1_Y
 
static const QString EXPR_REFERENCE2_ISCENTROID
 
static const QString EXPR_REFERENCE2_X
 
static const QString EXPR_REFERENCE2_Y
 
static const QString EXPR_ROTATION
 
static const QString EXPR_SIZE
 
static const QString EXPR_SPREAD
 
static const QString EXPR_SVG_FILE
 
static const QString EXPR_SVG_FILL_COLOR
 
static const QString EXPR_SVG_OUTLINE_COLOR
 
static const QString EXPR_SVG_OUTLINE_WIDTH
 
static const QString EXPR_SYMBOL_NAME
 
static const QString EXPR_USE_WHOLE_SHAPE
 
static const QString EXPR_VERTICAL_ANCHOR_POINT
 
static const QString EXPR_WIDTH
 
static const QString EXPR_WIDTH_BORDER
 
static const bool selectFillBorder = false
 
static const bool selectFillStyle = false
 
static const bool selectionIsOpaque = true
 

Detailed Description

A symbol layer class for displaying displacement arrows based on point layer attributes.

Definition at line 25 of file qgsvectorfieldsymbollayer.h.

Member Enumeration Documentation

Enumerator
ClockwiseFromNorth 
CounterclockwiseFromEast 

Definition at line 35 of file qgsvectorfieldsymbollayer.h.

Enumerator
Degrees 
Radians 

Definition at line 41 of file qgsvectorfieldsymbollayer.h.

Enumerator
Cartesian 
Polar 
Height 

Definition at line 28 of file qgsvectorfieldsymbollayer.h.

Constructor & Destructor Documentation

QgsVectorFieldSymbolLayer::QgsVectorFieldSymbolLayer ( )

Definition at line 22 of file qgsvectorfieldsymbollayer.cpp.

QgsVectorFieldSymbolLayer::~QgsVectorFieldSymbolLayer ( )

Definition at line 37 of file qgsvectorfieldsymbollayer.cpp.

Member Function Documentation

AngleOrientation QgsVectorFieldSymbolLayer::angleOrientation ( ) const
inline

Definition at line 85 of file qgsvectorfieldsymbollayer.h.

AngleUnits QgsVectorFieldSymbolLayer::angleUnits ( ) const
inline

Definition at line 87 of file qgsvectorfieldsymbollayer.h.

QgsVectorFieldSymbolLayer * QgsVectorFieldSymbolLayer::clone ( ) const
overridevirtual

Shall be reimplemented by subclasses to create a deep copy of the instance.

Implements QgsSymbolLayerV2.

Definition at line 234 of file qgsvectorfieldsymbollayer.cpp.

QColor QgsVectorFieldSymbolLayer::color ( ) const
overridevirtual

The fill color.

Reimplemented from QgsSymbolLayerV2.

Definition at line 334 of file qgsvectorfieldsymbollayer.cpp.

QgsSymbolLayerV2 * QgsVectorFieldSymbolLayer::create ( const QgsStringMap properties = QgsStringMap())
static

Definition at line 72 of file qgsvectorfieldsymbollayer.cpp.

QgsSymbolLayerV2 * QgsVectorFieldSymbolLayer::createFromSld ( QDomElement element)
static

Definition at line 270 of file qgsvectorfieldsymbollayer.cpp.

const QgsMapUnitScale& QgsVectorFieldSymbolLayer::distanceMapUnitScale ( ) const
inline

Definition at line 99 of file qgsvectorfieldsymbollayer.h.

QgsSymbolV2::OutputUnit QgsVectorFieldSymbolLayer::distanceUnit ( ) const
inline

Definition at line 96 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::drawPreviewIcon ( QgsSymbolV2RenderContext context,
QSize  size 
)
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 276 of file qgsvectorfieldsymbollayer.cpp.

QString QgsVectorFieldSymbolLayer::layerType ( ) const
inlineoverridevirtual

Returns a string that represents this layer type.

Used for serialization. Should match with the string used to register this symbol layer in the registry.

Implements QgsSymbolLayerV2.

Definition at line 53 of file qgsvectorfieldsymbollayer.h.

QgsMapUnitScale QgsVectorFieldSymbolLayer::mapUnitScale ( ) const
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 63 of file qgsvectorfieldsymbollayer.cpp.

QgsSymbolV2::OutputUnit QgsVectorFieldSymbolLayer::outputUnit ( ) const
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 48 of file qgsvectorfieldsymbollayer.cpp.

QgsStringMap QgsVectorFieldSymbolLayer::properties ( ) const
overridevirtual

Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer.

This is used to serialize a symbol layer perstistently.

Implements QgsSymbolLayerV2.

Definition at line 244 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::renderPoint ( QPointF  point,
QgsSymbolV2RenderContext context 
)
overridevirtual

Renders a marker at the specified point.

Derived classes must implement this to handle drawing the point.

Parameters
pointposition at which to render point, in painter units
contextsymbol render context

Implements QgsMarkerSymbolLayerV2.

Definition at line 145 of file qgsvectorfieldsymbollayer.cpp.

double QgsVectorFieldSymbolLayer::scale ( ) const
inline

Definition at line 81 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setAngleOrientation ( AngleOrientation  orientation)
inline

Definition at line 84 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setAngleUnits ( AngleUnits  units)
inline

Definition at line 86 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setColor ( const QColor color)
overridevirtual

The fill color.

Reimplemented from QgsSymbolLayerV2.

Definition at line 326 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::setDistanceMapUnitScale ( const QgsMapUnitScale scale)
inline

Definition at line 98 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setDistanceUnit ( QgsSymbolV2::OutputUnit  unit)
inline

Definition at line 95 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setMapUnitScale ( const QgsMapUnitScale scale)
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 57 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::setOutputUnit ( QgsSymbolV2::OutputUnit  unit)
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 42 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::setScale ( double  s)
inline

Definition at line 80 of file qgsvectorfieldsymbollayer.h.

bool QgsVectorFieldSymbolLayer::setSubSymbol ( QgsSymbolV2 symbol)
overridevirtual

set layer's subsymbol. takes ownership of the passed symbol

Reimplemented from QgsSymbolLayerV2.

Definition at line 134 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::setVectorFieldType ( VectorFieldType  type)
inline

Definition at line 82 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setXAttribute ( const QString attribute)
inline

Definition at line 76 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::setYAttribute ( const QString attribute)
inline

Definition at line 78 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::startRender ( QgsSymbolV2RenderContext context)
overridevirtual

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 206 of file qgsvectorfieldsymbollayer.cpp.

void QgsVectorFieldSymbolLayer::stopRender ( QgsSymbolV2RenderContext context)
overridevirtual

Implements QgsSymbolLayerV2.

Definition at line 226 of file qgsvectorfieldsymbollayer.cpp.

QgsSymbolV2* QgsVectorFieldSymbolLayer::subSymbol ( )
inlineoverridevirtual

Reimplemented from QgsSymbolLayerV2.

Definition at line 56 of file qgsvectorfieldsymbollayer.h.

void QgsVectorFieldSymbolLayer::toSld ( QDomDocument doc,
QDomElement element,
const QgsStringMap props 
) const
overridevirtual

Writes the SLD element following the SLD v1.1 specs.

Reimplemented from QgsMarkerSymbolLayerV2.

Definition at line 264 of file qgsvectorfieldsymbollayer.cpp.

QSet< QString > QgsVectorFieldSymbolLayer::usedAttributes ( ) const
overridevirtual

Returns the set of attributes referenced by the layer.

This includes attributes required by any data defined properties associated with the layer.

Reimplemented from QgsSymbolLayerV2.

Definition at line 284 of file qgsvectorfieldsymbollayer.cpp.

VectorFieldType QgsVectorFieldSymbolLayer::vectorFieldType ( ) const
inline

Definition at line 83 of file qgsvectorfieldsymbollayer.h.

QString QgsVectorFieldSymbolLayer::xAttribute ( ) const
inline

Definition at line 77 of file qgsvectorfieldsymbollayer.h.

QString QgsVectorFieldSymbolLayer::yAttribute ( ) const
inline

Definition at line 79 of file qgsvectorfieldsymbollayer.h.


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