mirror of
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319 lines
9.4 KiB
Plaintext
319 lines
9.4 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/symbology/qgspointdistancerenderer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.py again *
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************************************************************************/
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class QgsPointDistanceRenderer: QgsFeatureRenderer
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{
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%Docstring(signature="appended")
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An abstract base class for distance based point renderers (e.g., clusterer and displacement renderers).
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:py:class:`QgsPointDistanceRenderer` handles calculation of point clusters using a distance based threshold.
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Subclasses must implement :py:func:`~drawGroup` to handle the rendering of individual point clusters
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in the desired style.
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%End
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%TypeHeaderCode
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#include "qgspointdistancerenderer.h"
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%End
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public:
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struct GroupedFeature
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{
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GroupedFeature( const QgsFeature &feature, QgsMarkerSymbol *symbol /Transfer/, bool isSelected, const QString &label = QString() );
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%Docstring
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Constructor for GroupedFeature.
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:param feature: feature
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:param symbol: base symbol for rendering feature (owned by GroupedFeature)
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:param isSelected: set to ``True`` if feature is selected and should be rendered in a selected state
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:param label: optional label text, or empty string for no label
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%End
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~GroupedFeature();
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QgsFeature feature;
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QgsMarkerSymbol *symbol() const;
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%Docstring
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Base symbol for rendering feature
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%End
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bool isSelected;
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QString label;
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};
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typedef QList< QgsPointDistanceRenderer::GroupedFeature > ClusteredGroup;
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QgsPointDistanceRenderer( const QString &rendererName, const QString &labelAttributeName = QString() );
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%Docstring
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Constructor for QgsPointDistanceRenderer.
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:param rendererName: name of renderer for registry
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:param labelAttributeName: optional attribute for labeling points
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%End
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virtual void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props = QVariantMap() ) const;
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virtual bool renderFeature( const QgsFeature &feature, QgsRenderContext &context, int layer = -1, bool selected = false, bool drawVertexMarker = false ) throw( QgsCsException );
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virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
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virtual bool filterNeedsGeometry() const;
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virtual QgsFeatureRenderer::Capabilities capabilities();
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virtual QgsSymbolList symbols( QgsRenderContext &context ) const;
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virtual QgsSymbol *symbolForFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual QgsSymbol *originalSymbolForFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual QgsSymbolList symbolsForFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual QgsSymbolList originalSymbolsForFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual QSet< QString > legendKeysForFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual QString legendKeyToExpression( const QString &key, QgsVectorLayer *layer, bool &ok ) const;
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virtual bool willRenderFeature( const QgsFeature &feature, QgsRenderContext &context ) const;
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virtual void startRender( QgsRenderContext &context, const QgsFields &fields );
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virtual void stopRender( QgsRenderContext &context );
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virtual QgsLegendSymbolList legendSymbolItems() const;
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virtual void setEmbeddedRenderer( QgsFeatureRenderer *r /Transfer/ );
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virtual const QgsFeatureRenderer *embeddedRenderer() const;
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virtual void setLegendSymbolItem( const QString &key, QgsSymbol *symbol /Transfer/ );
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virtual bool legendSymbolItemsCheckable() const;
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virtual bool legendSymbolItemChecked( const QString &key );
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virtual void checkLegendSymbolItem( const QString &key, bool state );
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virtual QString filter( const QgsFields &fields = QgsFields() );
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virtual bool accept( QgsStyleEntityVisitorInterface *visitor ) const;
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void setLabelAttributeName( const QString &name );
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%Docstring
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Sets the attribute name for labeling points.
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:param name: attribute name, or empty string to avoid labeling features by the renderer
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.. seealso:: :py:func:`labelAttributeName`
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.. seealso:: :py:func:`setLabelFont`
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.. seealso:: :py:func:`setLabelColor`
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.. seealso:: :py:func:`setMinimumLabelScale`
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%End
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QString labelAttributeName() const;
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%Docstring
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Returns the attribute name used for labeling points, or an empty string if no labeling
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will be done by the renderer.
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.. seealso:: :py:func:`setLabelAttributeName`
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.. seealso:: :py:func:`labelFont`
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.. seealso:: :py:func:`minimumLabelScale`
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.. seealso:: :py:func:`labelColor`
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%End
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void setLabelFont( const QFont &font );
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%Docstring
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Sets the font used for labeling points.
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:param font: label font
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.. seealso:: :py:func:`labelFont`
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.. seealso:: :py:func:`setLabelAttributeName`
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.. seealso:: :py:func:`setLabelColor`
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%End
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QFont labelFont() const;
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%Docstring
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Returns the font used for labeling points.
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.. seealso:: :py:func:`setLabelFont`
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.. seealso:: :py:func:`labelAttributeName`
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.. seealso:: :py:func:`labelColor`
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%End
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void setMinimumLabelScale( double scale );
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%Docstring
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Sets the minimum map ``scale`` (i.e. most "zoomed out") at which points should be labeled by the renderer.
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The ``scale`` value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
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.. seealso:: :py:func:`minimumLabelScale`
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.. seealso:: :py:func:`setLabelAttributeName`
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%End
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double minimumLabelScale() const;
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%Docstring
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Returns the minimum map scale (i.e. most "zoomed out") at which points should be labeled by the renderer.
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The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
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.. seealso:: :py:func:`setMinimumLabelScale`
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.. seealso:: :py:func:`labelAttributeName`
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%End
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void setLabelColor( const QColor &color );
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%Docstring
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Sets the color to use for for labeling points.
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:param color: label color
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.. seealso:: :py:func:`labelColor`
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.. seealso:: :py:func:`setLabelAttributeName`
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.. seealso:: :py:func:`setLabelFont`
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%End
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QColor labelColor() const;
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%Docstring
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Returns the color used for for labeling points.
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.. seealso:: :py:func:`setLabelColor`
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.. seealso:: :py:func:`labelAttributeName`
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.. seealso:: :py:func:`labelFont`
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%End
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void setTolerance( double distance );
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%Docstring
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Sets the tolerance distance for grouping points. Units are specified using
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:py:func:`~QgsPointDistanceRenderer.setToleranceUnit`.
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:param distance: tolerance distance
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.. seealso:: :py:func:`tolerance`
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.. seealso:: :py:func:`setToleranceUnit`
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%End
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double tolerance() const;
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%Docstring
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Returns the tolerance distance for grouping points. Units are retrieved using
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:py:func:`~QgsPointDistanceRenderer.toleranceUnit`.
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.. seealso:: :py:func:`setTolerance`
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.. seealso:: :py:func:`toleranceUnit`
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%End
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void setToleranceUnit( Qgis::RenderUnit unit );
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%Docstring
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Sets the units for the tolerance distance.
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:param unit: tolerance distance units
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.. seealso:: :py:func:`setTolerance`
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.. seealso:: :py:func:`toleranceUnit`
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%End
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Qgis::RenderUnit toleranceUnit() const;
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%Docstring
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Returns the units for the tolerance distance.
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.. seealso:: :py:func:`tolerance`
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.. seealso:: :py:func:`setToleranceUnit`
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%End
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void setToleranceMapUnitScale( const QgsMapUnitScale &scale );
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%Docstring
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Sets the map unit scale object for the distance tolerance. This is only used if the
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:py:func:`~QgsPointDistanceRenderer.toleranceUnit` is set to :py:class:`QgsUnitTypes`.RenderMapUnits.
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:param scale: scale for distance tolerance
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.. seealso:: :py:func:`toleranceMapUnitScale`
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.. seealso:: :py:func:`setToleranceUnit`
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%End
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const QgsMapUnitScale &toleranceMapUnitScale() const;
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%Docstring
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Returns the map unit scale object for the distance tolerance. This is only used if the
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:py:func:`~QgsPointDistanceRenderer.toleranceUnit` is set to :py:class:`QgsUnitTypes`.RenderMapUnits.
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.. seealso:: :py:func:`setToleranceMapUnitScale`
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.. seealso:: :py:func:`toleranceUnit`
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%End
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protected:
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void drawLabels( QPointF centerPoint, QgsSymbolRenderContext &context, const QList<QPointF> &labelShifts, const ClusteredGroup &group ) const;
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%Docstring
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Renders the labels for a group.
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:param centerPoint: center point of group
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:param context: destination render context
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:param labelShifts: displacement for individual label positions
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:param group: group of clustered features to label
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.. note::
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may not be available in Python bindings on some platforms
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%End
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private:
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virtual void drawGroup( QPointF centerPoint, QgsRenderContext &context, const ClusteredGroup &group ) const = 0;
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%Docstring
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Draws a group of clustered points.
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:param centerPoint: central point (geographic centroid) of all points contained within the cluster
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:param context: destination render context
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:param group: contents of group
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%End
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/symbology/qgspointdistancerenderer.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.py again *
|
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************************************************************************/
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