QGIS API Documentation 3.39.0-Master (e8f1b343c48)
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Simple marker symbol layer, consisting of a rendered shape with solid fill color and an stroke. More...
#include <qgsmarkersymbollayer.h>
Public Member Functions | |
QgsSimpleMarkerSymbolLayer (Qgis::MarkerShape shape=Qgis::MarkerShape::Circle, double size=DEFAULT_SIMPLEMARKER_SIZE, double angle=DEFAULT_SIMPLEMARKER_ANGLE, Qgis::ScaleMethod scaleMethod=DEFAULT_SCALE_METHOD, const QColor &color=DEFAULT_SIMPLEMARKER_COLOR, const QColor &strokeColor=DEFAULT_SIMPLEMARKER_BORDERCOLOR, Qt::PenJoinStyle penJoinStyle=DEFAULT_SIMPLEMARKER_JOINSTYLE) | |
Constructor for QgsSimpleMarkerSymbolLayer. | |
~QgsSimpleMarkerSymbolLayer () override | |
QRectF | bounds (QPointF point, QgsSymbolRenderContext &context) override |
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. | |
QgsSimpleMarkerSymbolLayer * | clone () const override |
Shall be reimplemented by subclasses to create a deep copy of the instance. | |
QColor | color () const override |
Returns the "representative" color of the symbol layer. | |
QColor | fillColor () const override |
Returns the fill color for the symbol layer. | |
Qgis::SymbolLayerFlags | flags () const override |
Returns flags which control the symbol layer's behavior. | |
QString | layerType () const override |
Returns a string that represents this layer type. | |
QgsMapUnitScale | mapUnitScale () const override |
QString | ogrFeatureStyle (double mmScaleFactor, double mapUnitScaleFactor) const override |
Qgis::RenderUnit | outputUnit () const override |
Returns the units to use for sizes and widths within the symbol layer. | |
Qt::PenCapStyle | penCapStyle () const |
Returns the marker's stroke cap style (e.g., flat, round, etc). | |
Qt::PenJoinStyle | penJoinStyle () const |
Returns the marker's stroke join style (e.g., miter, bevel, etc). | |
QVariantMap | properties () const override |
Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer. | |
void | renderPoint (QPointF point, QgsSymbolRenderContext &context) override |
Renders a marker at the specified point. | |
void | setColor (const QColor &color) override |
Sets the "representative" color for the symbol layer. | |
void | setFillColor (const QColor &color) override |
Sets the fill color for the symbol layer. | |
void | setMapUnitScale (const QgsMapUnitScale &scale) override |
void | setOutputUnit (Qgis::RenderUnit unit) override |
Sets the units to use for sizes and widths within the symbol layer. | |
void | setPenCapStyle (Qt::PenCapStyle style) |
Sets the marker's stroke cap style (e.g., flat, round, etc). | |
void | setPenJoinStyle (Qt::PenJoinStyle style) |
Sets the marker's stroke join style (e.g., miter, bevel, etc). | |
void | setStrokeColor (const QColor &color) override |
Sets the marker's stroke color. | |
void | setStrokeStyle (Qt::PenStyle strokeStyle) |
Sets the marker's stroke style (e.g., solid, dashed, etc) | |
void | setStrokeWidth (double w) |
Sets the width of the marker's stroke. | |
void | setStrokeWidthMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map scale for the width of the marker's stroke. | |
void | setStrokeWidthUnit (Qgis::RenderUnit u) |
Sets the unit for the width of the marker's stroke. | |
void | startRender (QgsSymbolRenderContext &context) override |
Called before a set of rendering operations commences on the supplied render context. | |
QColor | strokeColor () const override |
Returns the marker's stroke color. | |
Qt::PenStyle | strokeStyle () const |
Returns the marker's stroke style (e.g., solid, dashed, etc) | |
double | strokeWidth () const |
Returns the width of the marker's stroke. | |
const QgsMapUnitScale & | strokeWidthMapUnitScale () const |
Returns the map scale for the width of the marker's stroke. | |
Qgis::RenderUnit | strokeWidthUnit () const |
Returns the unit for the width of the marker's stroke. | |
bool | usesMapUnits () const override |
Returns true if the symbol layer has any components which use map unit based sizes. | |
bool | writeDxf (QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolRenderContext &context, QPointF shift=QPointF(0.0, 0.0)) const override |
write as DXF | |
void | writeSldMarker (QDomDocument &doc, QDomElement &element, const QVariantMap &props) const override |
Writes the symbol layer definition as a SLD XML element. | |
Public Member Functions inherited from QgsSimpleMarkerSymbolLayerBase | |
QgsSimpleMarkerSymbolLayerBase (Qgis::MarkerShape shape=Qgis::MarkerShape::Circle, double size=DEFAULT_SIMPLEMARKER_SIZE, double angle=DEFAULT_SIMPLEMARKER_ANGLE, Qgis::ScaleMethod scaleMethod=DEFAULT_SCALE_METHOD) | |
Constructor for QgsSimpleMarkerSymbolLayerBase. | |
~QgsSimpleMarkerSymbolLayerBase () override | |
QRectF | bounds (QPointF point, QgsSymbolRenderContext &context) override |
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. | |
void | renderPoint (QPointF point, QgsSymbolRenderContext &context) override |
Renders a marker at the specified point. | |
void | setShape (Qgis::MarkerShape shape) |
Sets the rendered marker shape. | |
Qgis::MarkerShape | shape () const |
Returns the shape for the rendered marker symbol. | |
void | startRender (QgsSymbolRenderContext &context) override |
Called before a set of rendering operations commences on the supplied render context. | |
void | stopRender (QgsSymbolRenderContext &context) override |
Called after a set of rendering operations has finished on the supplied render context. | |
Public Member Functions inherited from QgsMarkerSymbolLayer | |
QgsMarkerSymbolLayer (const QgsMarkerSymbolLayer &other)=delete | |
double | angle () const |
Returns the rotation angle for the marker, in degrees clockwise from north. | |
void | drawPreviewIcon (QgsSymbolRenderContext &context, QSize size) override |
virtual double | dxfAngle (QgsSymbolRenderContext &context) const override |
Gets angle. | |
virtual double | dxfSize (const QgsDxfExport &e, QgsSymbolRenderContext &context) const override |
Gets marker size. | |
HorizontalAnchorPoint | horizontalAnchorPoint () const |
Returns the horizontal anchor point for positioning the symbol. | |
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. | |
const QgsMapUnitScale & | offsetMapUnitScale () const |
Returns the map unit scale for the symbol's offset. | |
Qgis::RenderUnit | offsetUnit () const |
Returns the units for the symbol's offset. | |
QgsMarkerSymbolLayer & | operator= (const QgsMarkerSymbolLayer &other)=delete |
Qgis::ScaleMethod | scaleMethod () const |
Returns the method to use for scaling the marker's size. | |
void | setAngle (double angle) |
Sets the rotation angle for the marker. | |
void | setHorizontalAnchorPoint (HorizontalAnchorPoint h) |
Sets the horizontal anchor point for positioning the symbol. | |
void | setLineAngle (double lineAngle) |
Sets the line angle modification for the symbol's angle. | |
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. | |
void | setOffsetMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale for the symbol's offset. | |
void | setOffsetUnit (Qgis::RenderUnit unit) |
Sets the units for the symbol's offset. | |
void | setScaleMethod (Qgis::ScaleMethod scaleMethod) |
Sets the method to use for scaling the marker's size. | |
virtual void | setSize (double size) |
Sets the symbol size. | |
void | setSizeMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale for the symbol's size. | |
void | setSizeUnit (Qgis::RenderUnit unit) |
Sets the units for the symbol's size. | |
void | setVerticalAnchorPoint (VerticalAnchorPoint v) |
Sets the vertical anchor point for positioning the symbol. | |
double | size () const |
Returns the symbol size. | |
const QgsMapUnitScale & | sizeMapUnitScale () const |
Returns the map unit scale for the symbol's size. | |
Qgis::RenderUnit | sizeUnit () const |
Returns the units for the symbol's size. | |
void | toSld (QDomDocument &doc, QDomElement &element, const QVariantMap &props) const override |
Saves the symbol layer as SLD. | |
VerticalAnchorPoint | verticalAnchorPoint () const |
Returns the vertical anchor point for positioning the symbol. | |
Public Member Functions inherited from QgsSymbolLayer | |
QgsSymbolLayer (const QgsSymbolLayer &other)=delete | |
virtual | ~QgsSymbolLayer () |
virtual bool | canCauseArtifactsBetweenAdjacentTiles () const |
Returns true if the symbol layer rendering can cause visible artifacts across a single feature when the feature is rendered as a series of adjacent map tiles each containing a portion of the feature's geometry. | |
QgsPropertyCollection & | dataDefinedProperties () |
Returns a reference to the symbol layer's property collection, used for data defined overrides. | |
const QgsPropertyCollection & | dataDefinedProperties () const |
Returns a reference to the symbol layer's property collection, used for data defined overrides. | |
virtual QColor | dxfBrushColor (QgsSymbolRenderContext &context) const |
Gets brush/fill color. | |
virtual Qt::BrushStyle | dxfBrushStyle () const |
Gets brush/fill style. | |
virtual QColor | dxfColor (QgsSymbolRenderContext &context) const |
Gets color. | |
virtual QVector< qreal > | dxfCustomDashPattern (Qgis::RenderUnit &unit) const |
Gets dash pattern. | |
virtual double | dxfOffset (const QgsDxfExport &e, QgsSymbolRenderContext &context) const |
Gets offset. | |
virtual Qt::PenStyle | dxfPenStyle () const |
Gets pen style. | |
virtual double | dxfWidth (const QgsDxfExport &e, QgsSymbolRenderContext &context) const |
Gets line width. | |
bool | enabled () const |
Returns true if symbol layer is enabled and will be drawn. | |
virtual double | estimateMaxBleed (const QgsRenderContext &context) const |
Returns the estimated maximum distance which the layer style will bleed outside the drawn shape when drawn in the specified /a context. | |
virtual bool | hasDataDefinedProperties () const |
Returns true if the symbol layer (or any of its sub-symbols) contains data defined properties. | |
QString | id () const |
Returns symbol layer identifier This id is unique in the whole project. | |
bool | installMasks (QgsRenderContext &context, bool recursive, const QRectF &rect=QRectF()) |
When rendering, install masks on context painter. | |
virtual bool | isCompatibleWithSymbol (QgsSymbol *symbol) const |
Returns if the layer can be used below the specified symbol. | |
bool | isLocked () const |
Returns true if the symbol layer colors are locked and the layer will ignore any symbol-level color changes. | |
virtual QList< QgsSymbolLayerReference > | masks () const |
Returns masks defined by this symbol layer. | |
QgsSymbolLayer & | operator= (const QgsSymbolLayer &other)=delete |
QgsPaintEffect * | paintEffect () const |
Returns the current paint effect for the layer. | |
virtual void | prepareExpressions (const QgsSymbolRenderContext &context) |
Prepares all data defined property expressions for evaluation. | |
virtual void | prepareMasks (const QgsSymbolRenderContext &context) |
Prepares all mask internal objects according to what is defined in context This should be called prior to calling startRender() method. | |
int | renderingPass () const |
Specifies the rendering pass in which this symbol layer should be rendered. | |
void | setDataDefinedProperties (const QgsPropertyCollection &collection) |
Sets the symbol layer's property collection, used for data defined overrides. | |
virtual void | setDataDefinedProperty (Property key, const QgsProperty &property) |
Sets a data defined property for the layer. | |
void | setEnabled (bool enabled) |
Sets whether symbol layer is enabled and should be drawn. | |
void | setId (const QString &id) |
Set symbol layer identifier This id has to be unique in the whole project. | |
void | setLocked (bool locked) |
Sets whether the layer's colors are locked. | |
void | setPaintEffect (QgsPaintEffect *effect) |
Sets the current paint effect for the layer. | |
void | setRenderingPass (int renderingPass) |
Specifies the rendering pass in which this symbol layer should be rendered. | |
virtual bool | setSubSymbol (QgsSymbol *symbol) |
Sets layer's subsymbol. takes ownership of the passed symbol. | |
void | setUserFlags (Qgis::SymbolLayerUserFlags flags) |
Sets user-controlled flags which control the symbol layer's behavior. | |
virtual void | startFeatureRender (const QgsFeature &feature, QgsRenderContext &context) |
Called before the layer will be rendered for a particular feature. | |
virtual void | stopFeatureRender (const QgsFeature &feature, QgsRenderContext &context) |
Called after the layer has been rendered for a particular feature. | |
virtual QgsSymbol * | subSymbol () |
Returns the symbol's sub symbol, if present. | |
Qgis::SymbolType | type () const |
virtual QSet< QString > | usedAttributes (const QgsRenderContext &context) const |
Returns the set of attributes referenced by the layer. | |
Qgis::SymbolLayerUserFlags | userFlags () const |
Returns user-controlled flags which control the symbol layer's behavior. | |
Static Public Member Functions | |
static QgsSymbolLayer * | create (const QVariantMap &properties=QVariantMap()) |
Creates a new QgsSimpleMarkerSymbolLayer. | |
static QgsSymbolLayer * | createFromSld (QDomElement &element) |
Creates a new QgsSimpleMarkerSymbolLayer from an SLD XML element. | |
Static Public Member Functions inherited from QgsSimpleMarkerSymbolLayerBase | |
static QList< Qgis::MarkerShape > | availableShapes () |
Returns a list of all available shape types. | |
static Qgis::MarkerShape | decodeShape (const QString &name, bool *ok=nullptr) |
Attempts to decode a string representation of a shape name to the corresponding shape. | |
static QString | encodeShape (Qgis::MarkerShape shape) |
Encodes a shape to its string representation. | |
static bool | shapeIsFilled (Qgis::MarkerShape shape) |
Returns true if a symbol shape has a fill. | |
Static Public Member Functions inherited from QgsSymbolLayer | |
static const QgsPropertiesDefinition & | propertyDefinitions () |
Returns the symbol layer property definitions. | |
Protected Member Functions | |
void | drawMarker (QPainter *p, QgsSymbolRenderContext &context) |
Draws the marker shape in the specified painter. | |
bool | prepareCache (QgsSymbolRenderContext &context) |
Prepares cache image. | |
Protected Member Functions inherited from QgsSimpleMarkerSymbolLayerBase | |
void | calculateOffsetAndRotation (QgsSymbolRenderContext &context, double scaledSize, bool &hasDataDefinedRotation, QPointF &offset, double &angle) const |
Calculates the marker offset and rotation. | |
double | calculateSize (QgsSymbolRenderContext &context, bool &hasDataDefinedSize) const |
Calculates the desired size of the marker, considering data defined size overrides. | |
bool | prepareMarkerPath (Qgis::MarkerShape symbol) |
Prepares the layer for drawing the specified shape (QPainterPath version) | |
bool | prepareMarkerShape (Qgis::MarkerShape shape) |
Prepares the layer for drawing the specified shape (QPolygonF version) | |
bool | shapeToPolygon (Qgis::MarkerShape shape, QPolygonF &polygon) const |
Creates a polygon representing the specified shape. | |
Protected Member Functions inherited from QgsMarkerSymbolLayer | |
QgsMarkerSymbolLayer (bool locked=false) | |
Constructor for QgsMarkerSymbolLayer. | |
void | markerOffset (QgsSymbolRenderContext &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. | |
void | markerOffset (QgsSymbolRenderContext &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. | |
void | markerOffset (QgsSymbolRenderContext &context, double width, double height, Qgis::RenderUnit widthUnit, Qgis::RenderUnit heightUnit, double &offsetX, double &offsetY, const QgsMapUnitScale &widthMapUnitScale, const QgsMapUnitScale &heightMapUnitScale) const |
Protected Member Functions inherited from QgsSymbolLayer | |
QgsSymbolLayer (Qgis::SymbolType type, bool locked=false) | |
Constructor for QgsSymbolLayer. | |
void | copyDataDefinedProperties (QgsSymbolLayer *destLayer) const |
Copies all data defined properties of this layer to another symbol layer. | |
void | copyPaintEffect (QgsSymbolLayer *destLayer) const |
Copies paint effect of this layer to another symbol layer. | |
void | removeMasks (QgsRenderContext &context, bool recursive) |
When rendering, remove previously installed masks from context painter if recursive is true masks are removed recursively for all children symbol layers. | |
void | restoreOldDataDefinedProperties (const QVariantMap &stringMap) |
Restores older data defined properties from string map. | |
bool | shouldRenderUsingSelectionColor (const QgsSymbolRenderContext &context) const |
Returns true if the symbol layer should be rendered using the selection color from the render context. | |
Protected Attributes | |
QBrush | mBrush |
QBrush corresponding to marker's fill style. | |
QImage | mCache |
Cached image of marker, if using cached version. | |
QPen | mPen |
QPen corresponding to marker's stroke style. | |
Qt::PenCapStyle | mPenCapStyle = Qt::SquareCap |
Stroke pen cap style. | |
Qt::PenJoinStyle | mPenJoinStyle |
Stroke pen join style. | |
QBrush | mSelBrush |
QBrush to use as fill of selected symbols. | |
QImage | mSelCache |
Cached image of selected marker, if using cached version. | |
QPen | mSelPen |
QPen to use as stroke of selected symbols. | |
QColor | mStrokeColor |
Stroke color. | |
Qt::PenStyle | mStrokeStyle = Qt::SolidLine |
Stroke style. | |
double | mStrokeWidth = 0 |
Stroke width. | |
QgsMapUnitScale | mStrokeWidthMapUnitScale |
Stroke width map unit scale. | |
Qgis::RenderUnit | mStrokeWidthUnit = Qgis::RenderUnit::Millimeters |
Stroke width units. | |
bool | mUsingCache = false |
true if using cached images of markers for drawing. | |
Protected Attributes inherited from QgsSimpleMarkerSymbolLayerBase | |
QPainterPath | mPath |
Painter path representing shape. If mPolygon is empty then the shape is stored in mPath. | |
QPolygonF | mPolygon |
Polygon of points in shape. If polygon is empty then shape is using mPath. | |
Qgis::MarkerShape | mShape |
Symbol shape. | |
Protected Attributes inherited from QgsMarkerSymbolLayer | |
double | mAngle = 0 |
Marker rotation angle, in degrees clockwise from north. | |
HorizontalAnchorPoint | mHorizontalAnchorPoint = HCenter |
Horizontal anchor point. | |
double | mLineAngle = 0 |
Line rotation angle (see setLineAngle() for details) | |
QPointF | mOffset |
Marker offset. | |
QgsMapUnitScale | mOffsetMapUnitScale |
Offset map unit scale. | |
Qgis::RenderUnit | mOffsetUnit = Qgis::RenderUnit::Millimeters |
Offset units. | |
Qgis::ScaleMethod | mScaleMethod = Qgis::ScaleMethod::ScaleDiameter |
Marker size scaling method. | |
double | mSize = 2.0 |
Marker size. | |
QgsMapUnitScale | mSizeMapUnitScale |
Marker size map unit scale. | |
Qgis::RenderUnit | mSizeUnit = Qgis::RenderUnit::Millimeters |
Marker size unit. | |
VerticalAnchorPoint | mVerticalAnchorPoint = VCenter |
Vertical anchor point. | |
Protected Attributes inherited from QgsSymbolLayer | |
QPainterPath | mClipPath |
QColor | mColor |
QgsPropertyCollection | mDataDefinedProperties |
bool | mEnabled = true |
True if layer is enabled and should be drawn. | |
QgsFields | mFields |
QString | mId |
bool | mLocked = false |
std::unique_ptr< QgsPaintEffect > | mPaintEffect |
int | mRenderingPass = 0 |
Qgis::SymbolType | mType |
Qgis::SymbolLayerUserFlags | mUserFlags |
User controlled flags. | |
Static Protected Attributes | |
static const int | MAXIMUM_CACHE_WIDTH = 3000 |
Maximum width/height of cache image. | |
Static Protected Attributes inherited from QgsSymbolLayer | |
static const bool | SELECT_FILL_BORDER = false |
Whether fill styles for selected features also highlight symbol stroke. | |
static const bool | SELECT_FILL_STYLE = false |
Whether fill styles for selected features uses symbol layer style. | |
static const bool | SELECTION_IS_OPAQUE = true |
Whether styles for selected features ignore symbol alpha. | |
Simple marker symbol layer, consisting of a rendered shape with solid fill color and an stroke.
Definition at line 175 of file qgsmarkersymbollayer.h.
QgsSimpleMarkerSymbolLayer::QgsSimpleMarkerSymbolLayer | ( | Qgis::MarkerShape | shape = Qgis::MarkerShape::Circle , |
double | size = DEFAULT_SIMPLEMARKER_SIZE , |
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double | angle = DEFAULT_SIMPLEMARKER_ANGLE , |
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Qgis::ScaleMethod | scaleMethod = DEFAULT_SCALE_METHOD , |
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const QColor & | color = DEFAULT_SIMPLEMARKER_COLOR , |
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const QColor & | strokeColor = DEFAULT_SIMPLEMARKER_BORDERCOLOR , |
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Qt::PenJoinStyle | penJoinStyle = DEFAULT_SIMPLEMARKER_JOINSTYLE |
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) |
Constructor for QgsSimpleMarkerSymbolLayer.
shape | symbol shape |
size | symbol size (in mm) |
angle | symbol rotation angle |
scaleMethod | scaling method for data defined scaling |
color | fill color for symbol |
strokeColor | stroke color for symbol |
penJoinStyle | join style for stroke pen |
Definition at line 963 of file qgsmarkersymbollayer.cpp.
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overridedefault |
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overridevirtual |
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.
Implements QgsMarkerSymbolLayer.
Definition at line 1796 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Shall be reimplemented by subclasses to create a deep copy of the instance.
Implements QgsSymbolLayer.
Definition at line 1386 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Returns the "representative" color of the symbol layer.
Depending on the symbol layer type, this will have different meaning. For instance, a line symbol layer will generally return the stroke color of the layer, while a fill symbol layer will return the "fill" color instead of stroke.
Some symbol layer types will return an invalid QColor if they have no representative color associated (e.g. raster image based symbol layers).
Reimplemented from QgsSymbolLayer.
Definition at line 1847 of file qgsmarkersymbollayer.cpp.
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static |
Creates a new QgsSimpleMarkerSymbolLayer.
properties | a property map containing symbol properties (see properties()) |
Definition at line 973 of file qgsmarkersymbollayer.cpp.
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static |
Creates a new QgsSimpleMarkerSymbolLayer from an SLD XML element.
element | XML element containing SLD definition of symbol |
Definition at line 1506 of file qgsmarkersymbollayer.cpp.
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protected |
Draws the marker shape in the specified painter.
p | destination QPainter |
context | symbol context |
Definition at line 1555 of file qgsmarkersymbollayer.cpp.
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inlineoverridevirtual |
Returns the fill color for the symbol layer.
This property is not supported by all symbol layer types, only those with a fill component. Symbol layers without a fill component will return an invalid QColor.
Reimplemented from QgsSymbolLayer.
Definition at line 232 of file qgsmarkersymbollayer.h.
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overridevirtual |
Returns flags which control the symbol layer's behavior.
Reimplemented from QgsSymbolLayer.
Definition at line 1079 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
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 QgsSymbolLayer.
Definition at line 1074 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1780 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Reimplemented from QgsSymbolLayer.
Definition at line 1444 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Returns the units to use for sizes and widths within the symbol layer.
Individual symbol layer subclasses will interpret this in different ways, e.g., a marker symbol layer may use it to specify the units for the marker size, while a line symbol layer may use it to specify the units for the line width.
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1765 of file qgsmarkersymbollayer.cpp.
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inline |
Returns the marker's stroke cap style (e.g., flat, round, etc).
Definition at line 300 of file qgsmarkersymbollayer.h.
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inline |
Returns the marker's stroke join style (e.g., miter, bevel, etc).
Definition at line 280 of file qgsmarkersymbollayer.h.
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protected |
Prepares cache image.
true
in case of success, false
if cache image size too large Definition at line 1150 of file qgsmarkersymbollayer.cpp.
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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 QgsSymbolLayer.
Definition at line 1361 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Renders a marker at the specified point.
Derived classes must implement this to handle drawing the point.
point | position at which to render point, in painter units |
context | symbol render context |
Implements QgsMarkerSymbolLayer.
Definition at line 1326 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Sets the "representative" color for the symbol layer.
Depending on the symbol layer type, this will have different meaning. For instance, a line symbol layer will generally set the stroke color of the layer, while a fill symbol layer will set the "fill" color instead of stroke.
Reimplemented from QgsSymbolLayer.
Definition at line 1835 of file qgsmarkersymbollayer.cpp.
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inlineoverridevirtual |
Sets the fill color for the symbol layer.
This property is not supported by all symbol layer types, only those with a fill component.
Reimplemented from QgsSymbolLayer.
Definition at line 233 of file qgsmarkersymbollayer.h.
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overridevirtual |
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1774 of file qgsmarkersymbollayer.cpp.
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overridevirtual |
Sets the units to use for sizes and widths within the symbol layer.
Individual symbol layer subclasses will interpret this in different ways, e.g., a marker symbol layer may use it to specify the units for the marker size, while a line symbol layer may use it to specify the units for the line width.
unit | output units |
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1759 of file qgsmarkersymbollayer.cpp.
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Sets the marker's stroke cap style (e.g., flat, round, etc).
Definition at line 310 of file qgsmarkersymbollayer.h.
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inline |
Sets the marker's stroke join style (e.g., miter, bevel, etc).
style | join style |
Definition at line 290 of file qgsmarkersymbollayer.h.
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inlineoverridevirtual |
Sets the marker's stroke color.
color | stroke color |
Reimplemented from QgsSymbolLayer.
Definition at line 254 of file qgsmarkersymbollayer.h.
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inline |
Sets the marker's stroke style (e.g., solid, dashed, etc)
strokeStyle | style |
Definition at line 271 of file qgsmarkersymbollayer.h.
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Sets the width of the marker's stroke.
w | stroke width. See strokeWidthUnit() for units. |
Definition at line 327 of file qgsmarkersymbollayer.h.
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Sets the map scale for the width of the marker's stroke.
scale | stroke width map unit scale |
Definition at line 353 of file qgsmarkersymbollayer.h.
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inline |
Sets the unit for the width of the marker's stroke.
u | stroke width unit |
Definition at line 336 of file qgsmarkersymbollayer.h.
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overridevirtual |
Called before a set of rendering operations commences on the supplied render context.
This is always followed by a call to stopRender() after all rendering operations have been completed.
Subclasses can use this method to prepare for a set of rendering operations, e.g. by pre-evaluating paths or images to render, and performing other one-time optimisations.
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1084 of file qgsmarkersymbollayer.cpp.
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inlineoverridevirtual |
Returns the marker's stroke color.
Reimplemented from QgsSymbolLayer.
Definition at line 245 of file qgsmarkersymbollayer.h.
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inline |
Returns the marker's stroke style (e.g., solid, dashed, etc)
Definition at line 262 of file qgsmarkersymbollayer.h.
|
inline |
Returns the width of the marker's stroke.
Definition at line 318 of file qgsmarkersymbollayer.h.
|
inline |
Returns the map scale for the width of the marker's stroke.
Definition at line 361 of file qgsmarkersymbollayer.h.
|
inline |
Returns the unit for the width of the marker's stroke.
Definition at line 344 of file qgsmarkersymbollayer.h.
|
overridevirtual |
Returns true
if the symbol layer has any components which use map unit based sizes.
Reimplemented from QgsSymbolLayer.
Definition at line 1789 of file qgsmarkersymbollayer.cpp.
|
overridevirtual |
write as DXF
Reimplemented from QgsSymbolLayer.
Definition at line 1569 of file qgsmarkersymbollayer.cpp.
|
overridevirtual |
Writes the symbol layer definition as a SLD XML element.
doc | XML document |
element | parent XML element |
props | symbol layer definition (see properties()) |
Reimplemented from QgsMarkerSymbolLayer.
Definition at line 1406 of file qgsmarkersymbollayer.cpp.
|
staticprotected |
Maximum width/height of cache image.
Definition at line 414 of file qgsmarkersymbollayer.h.
|
protected |
QBrush corresponding to marker's fill style.
Definition at line 396 of file qgsmarkersymbollayer.h.
|
protected |
Cached image of marker, if using cached version.
Definition at line 399 of file qgsmarkersymbollayer.h.
|
protected |
QPen corresponding to marker's stroke style.
Definition at line 394 of file qgsmarkersymbollayer.h.
|
protected |
Stroke pen cap style.
Definition at line 392 of file qgsmarkersymbollayer.h.
|
protected |
Stroke pen join style.
Definition at line 390 of file qgsmarkersymbollayer.h.
|
protected |
QBrush to use as fill of selected symbols.
Definition at line 403 of file qgsmarkersymbollayer.h.
|
protected |
Cached image of selected marker, if using cached version.
Definition at line 405 of file qgsmarkersymbollayer.h.
|
protected |
QPen to use as stroke of selected symbols.
Definition at line 401 of file qgsmarkersymbollayer.h.
|
protected |
Stroke color.
Definition at line 380 of file qgsmarkersymbollayer.h.
|
protected |
Stroke style.
Definition at line 382 of file qgsmarkersymbollayer.h.
|
protected |
Stroke width.
Definition at line 384 of file qgsmarkersymbollayer.h.
|
protected |
Stroke width map unit scale.
Definition at line 388 of file qgsmarkersymbollayer.h.
|
protected |
Stroke width units.
Definition at line 386 of file qgsmarkersymbollayer.h.
|
protected |
true
if using cached images of markers for drawing.
This is faster, but cannot be used when data defined properties are present
Definition at line 411 of file qgsmarkersymbollayer.h.