QGIS API Documentation  2.99.0-Master (37c43df)
Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
QgsPalLayerSettings Class Reference

#include <qgspallabeling.h>

Public Types

enum  DataDefinedProperties {
  Size = 0, Bold = 1, Italic = 2, Underline = 3,
  Color = 4, Strikeout = 5, Family = 6, FontStyle = 21,
  FontSizeUnit = 22, FontTransp = 18, FontCase = 27, FontLetterSpacing = 28,
  FontWordSpacing = 29, FontBlendMode = 30, MultiLineWrapChar = 31, MultiLineHeight = 32,
  MultiLineAlignment = 33, DirSymbDraw = 34, DirSymbLeft = 35, DirSymbRight = 36,
  DirSymbPlacement = 37, DirSymbReverse = 38, NumFormat = 39, NumDecimals = 40,
  NumPlusSign = 41, BufferDraw = 42, BufferSize = 7, BufferUnit = 43,
  BufferColor = 8, BufferTransp = 19, BufferJoinStyle = 44, BufferBlendMode = 45,
  ShapeDraw = 46, ShapeKind = 47, ShapeSVGFile = 48, ShapeSizeType = 49,
  ShapeSizeX = 50, ShapeSizeY = 85, ShapeSizeUnits = 51, ShapeRotationType = 52,
  ShapeRotation = 53, ShapeOffset = 54, ShapeOffsetUnits = 55, ShapeRadii = 56,
  ShapeRadiiUnits = 57, ShapeTransparency = 63, ShapeBlendMode = 64, ShapeFillColor = 58,
  ShapeBorderColor = 59, ShapeBorderWidth = 60, ShapeBorderWidthUnits = 61, ShapeJoinStyle = 62,
  ShadowDraw = 65, ShadowUnder = 66, ShadowOffsetAngle = 67, ShadowOffsetDist = 68,
  ShadowOffsetUnits = 69, ShadowRadius = 70, ShadowRadiusUnits = 71, ShadowTransparency = 72,
  ShadowScale = 73, ShadowColor = 74, ShadowBlendMode = 75, CentroidWhole = 76,
  OffsetQuad = 77, OffsetXY = 78, OffsetUnits = 80, LabelDistance = 13,
  DistanceUnits = 81, OffsetRotation = 82, CurvedCharAngleInOut = 83, PositionX = 9,
  PositionY = 10, Hali = 11, Vali = 12, Rotation = 14,
  RepeatDistance = 84, RepeatDistanceUnit = 86, Priority = 87, PredefinedPositionOrder = 91,
  ScaleVisibility = 23, MinScale = 16, MaxScale = 17, FontLimitPixel = 24,
  FontMinPixel = 25, FontMaxPixel = 26, IsObstacle = 88, ObstacleFactor = 89,
  ZIndex = 90, Show = 15, AlwaysShow = 20
}
 
enum  DirectionSymbols { SymbolLeftRight, SymbolAbove, SymbolBelow }
 
enum  LinePlacementFlags { OnLine = 1, AboveLine = 2, BelowLine = 4, MapOrientation = 8 }
 Line placement flags, which control how candidates are generated for a linear feature. More...
 
enum  MultiLineAlign { MultiLeft = 0, MultiCenter, MultiRight, MultiFollowPlacement }
 
enum  ObstacleType { PolygonInterior, PolygonBoundary, PolygonWhole }
 Valid obstacle types, which affect how features within the layer will act as obstacles for labels. More...
 
enum  OffsetType { FromPoint, FromSymbolBounds }
 Behaviour modifier for label offset and distance, only applies in some label placement modes. More...
 
enum  Placement {
  AroundPoint, OverPoint, Line, Curved,
  Horizontal, Free, OrderedPositionsAroundPoint, PerimeterCurved
}
 Placement modes which determine how label candidates are generated for a feature. More...
 
enum  PredefinedPointPosition {
  TopLeft, TopSlightlyLeft, TopMiddle, TopSlightlyRight,
  TopRight, MiddleLeft, MiddleRight, BottomLeft,
  BottomSlightlyLeft, BottomMiddle, BottomSlightlyRight, BottomRight
}
 Positions for labels when using the QgsPalLabeling::OrderedPositionsAroundPoint placement mode. More...
 
enum  QuadrantPosition {
  QuadrantAboveLeft, QuadrantAbove, QuadrantAboveRight, QuadrantLeft,
  QuadrantOver, QuadrantRight, QuadrantBelowLeft, QuadrantBelow,
  QuadrantBelowRight
}
 
enum  SizeUnit { Points = 0, MM, MapUnits, Percent }
 Units used for option sizes, before being converted to rendered sizes. More...
 
enum  UpsideDownLabels { Upright, ShowDefined, ShowAll }
 

Public Member Functions

 QgsPalLayerSettings ()
 
 QgsPalLayerSettings (const QgsPalLayerSettings &s)
 
 ~QgsPalLayerSettings ()
 
void calculateLabelSize (const QFontMetricsF *fm, QString text, double &labelX, double &labelY, QgsFeature *f=nullptr, QgsRenderContext *context=nullptr)
 
bool dataDefinedEvaluate (QgsPalLayerSettings::DataDefinedProperties p, QVariant &exprVal, QgsExpressionContext *context=nullptr, const QVariant &originalValue=QVariant()) const
 Get data defined property value from expression string or attribute field name. More...
 
bool dataDefinedIsActive (QgsPalLayerSettings::DataDefinedProperties p) const
 Whether data definition is active. More...
 
QMap< QString, QString > dataDefinedMap (QgsPalLayerSettings::DataDefinedProperties p) const
 Get property value as separate values split into Qmap. More...
 
QMap< QgsPalLayerSettings::DataDefinedProperties, QPair< QString, int > > dataDefinedNames () const
 Map of data defined enum to names and old-style indecies The QPair contains a new string for layer property key, and a reference to old-style numeric key (< QGIS 2.0) More...
 
QgsDataDefineddataDefinedProperty (QgsPalLayerSettings::DataDefinedProperties p)
 Get a data defined property pointer. More...
 
bool dataDefinedUseExpression (QgsPalLayerSettings::DataDefinedProperties p) const
 Whether data definition is set to use an expression. More...
 
QVariant dataDefinedValue (QgsPalLayerSettings::DataDefinedProperties p, QgsFeature &f, const QgsFields &fields, const QgsExpressionContext *context=nullptr) const
 Get data defined property value from expression string or attribute field name. More...
 
const QgsTextFormatformat () const
 Returns the label text formatting settings, eg font settings, buffer settings, etc. More...
 
QgsExpressiongetLabelExpression ()
 Returns the QgsExpression for this label settings. More...
 
QgsPalLayerSettingsoperator= (const QgsPalLayerSettings &s)
 copy operator - only copies the permanent members More...
 
void readFromLayer (QgsVectorLayer *layer)
 
void readXml (QDomElement &elem)
 Read settings from a DOM element. More...
 
void registerFeature (QgsFeature &f, QgsRenderContext &context, QgsLabelFeature **labelFeature=nullptr, QgsGeometry *obstacleGeometry=nullptr)
 Register a feature for labelling. More...
 
void removeAllDataDefinedProperties ()
 Clear all data-defined properties. More...
 
void removeDataDefinedProperty (QgsPalLayerSettings::DataDefinedProperties p)
 Set a property to static instead data defined. More...
 
void setDataDefinedProperty (QgsPalLayerSettings::DataDefinedProperties p, bool active, bool useExpr, const QString &expr, const QString &field)
 Set a property as data defined. More...
 
void setFormat (const QgsTextFormat &format)
 Sets the label text formatting settings, eg font settings, buffer settings, etc. More...
 
QString updateDataDefinedString (const QString &value)
 Convert old property value to new one as delimited values. More...
 
void writeToLayer (QgsVectorLayer *layer)
 
QDomElement writeXml (QDomDocument &doc)
 Write settings into a DOM element. More...
 

Static Public Member Functions

static QgsPalLayerSettings fromLayer (QgsVectorLayer *layer)
 

Public Attributes

bool addDirectionSymbol
 
double angleOffset
 
bool centroidInside
 
bool centroidWhole
 
QgsCoordinateTransform ct
 
QMap< QgsPalLayerSettings::DataDefinedProperties, QgsDataDefined *> dataDefinedProperties
 Map of current data defined properties. More...
 
int decimals
 
bool displayAll
 
double dist
 
bool distInMapUnits
 
QgsMapUnitScale distMapUnitScale
 
bool drawLabels
 Whether to draw labels for this layer. More...
 
bool enabled
 
QgsGeometry extentGeom
 
int fieldIndex
 
QString fieldName
 
bool fitInPolygonOnly
 True if only labels which completely fit within a polygon are allowed. More...
 
bool fontLimitPixelSize
 
int fontMaxPixelSize
 
int fontMinPixelSize
 
bool formatNumbers
 
bool isExpression
 Is this label made from a expression string eg FieldName || 'mm'. More...
 
bool labelOffsetInMapUnits
 
QgsMapUnitScale labelOffsetMapUnitScale
 
bool labelPerPart
 
QString leftDirectionSymbol
 
bool limitNumLabels
 
double maxCurvedCharAngleIn
 
double maxCurvedCharAngleOut
 
int maxNumLabels
 
QgsFeaturemCurFeat
 
QgsFields mCurFields
 
bool mergeLines
 
int mFeatsRegPal
 
int mFeatsSendingToPal
 
int mFeaturesToLabel
 
double minFeatureSize
 
MultiLineAlign multilineAlign
 
bool obstacle
 
double obstacleFactor
 Obstacle factor, where 1.0 = default, < 1.0 more likely to be covered by labels,

1.0 less likely to be covered

More...
 
ObstacleType obstacleType
 Controls how features act as obstacles for labels. More...
 
OffsetType offsetType
 Offset type for layer (only applies in certain placement modes) More...
 
DirectionSymbols placeDirectionSymbol
 
Placement placement
 
unsigned int placementFlags
 
bool plusSign
 
QVector< PredefinedPointPositionpredefinedPositionOrder
 Ordered list of predefined label positions for points. More...
 
bool preserveRotation
 
QColor previewBkgrdColor
 
int priority
 
QgsPoint ptOne
 
QgsPoint ptZero
 
QuadrantPosition quadOffset
 
double repeatDistance
 
QgsMapUnitScale repeatDistanceMapUnitScale
 
SizeUnit repeatDistanceUnit
 
bool reverseDirectionSymbol
 
QString rightDirectionSymbol
 
int scaleMax
 
int scaleMin
 
bool scaleVisibility
 
QgsStringReplacementCollection substitutions
 Substitution collection for automatic text substitution with labels. More...
 
UpsideDownLabels upsidedownLabels
 
bool useSubstitutions
 True if substitutions should be applied. More...
 
QString wrapChar
 
const QgsMapToPixelxform
 
double xOffset
 
double yOffset
 
double zIndex
 Z-Index of label, where labels with a higher z-index are rendered on top of labels with a lower z-index. More...
 

Detailed Description

Definition at line 164 of file qgspallabeling.h.

Member Enumeration Documentation

§ DataDefinedProperties

Enumerator
Size 
Bold 
Italic 
Underline 
Color 
Strikeout 
Family 
FontStyle 
FontSizeUnit 
FontTransp 
FontCase 
FontLetterSpacing 
FontWordSpacing 
FontBlendMode 
MultiLineWrapChar 
MultiLineHeight 
MultiLineAlignment 
DirSymbDraw 
DirSymbLeft 
DirSymbRight 
DirSymbPlacement 
DirSymbReverse 
NumFormat 
NumDecimals 
NumPlusSign 
BufferDraw 
BufferSize 
BufferUnit 
BufferColor 
BufferTransp 
BufferJoinStyle 
BufferBlendMode 
ShapeDraw 
ShapeKind 
ShapeSVGFile 
ShapeSizeType 
ShapeSizeX 
ShapeSizeY 
ShapeSizeUnits 
ShapeRotationType 
ShapeRotation 
ShapeOffset 
ShapeOffsetUnits 
ShapeRadii 
ShapeRadiiUnits 
ShapeTransparency 
ShapeBlendMode 
ShapeFillColor 
ShapeBorderColor 
ShapeBorderWidth 
ShapeBorderWidthUnits 
ShapeJoinStyle 
ShadowDraw 
ShadowUnder 
ShadowOffsetAngle 
ShadowOffsetDist 
ShadowOffsetUnits 
ShadowRadius 
ShadowRadiusUnits 
ShadowTransparency 
ShadowScale 
ShadowColor 
ShadowBlendMode 
CentroidWhole 
OffsetQuad 
OffsetXY 
OffsetUnits 
LabelDistance 
DistanceUnits 
OffsetRotation 
CurvedCharAngleInOut 
PositionX 
PositionY 
Hali 
Vali 
Rotation 
RepeatDistance 
RepeatDistanceUnit 
Priority 
PredefinedPositionOrder 
ScaleVisibility 
MinScale 
MaxScale 
FontLimitPixel 
FontMinPixel 
FontMaxPixel 
IsObstacle 
ObstacleFactor 
ZIndex 
Show 
AlwaysShow 

Definition at line 300 of file qgspallabeling.h.

§ DirectionSymbols

Enumerator
SymbolLeftRight 

Place direction symbols on left/right of label.

SymbolAbove 

Place direction symbols on above label.

SymbolBelow 

Place direction symbols on below label.

Definition at line 257 of file qgspallabeling.h.

§ LinePlacementFlags

Line placement flags, which control how candidates are generated for a linear feature.

Enumerator
OnLine 

Labels can be placed directly over a line feature.

AboveLine 

Labels can be placed above a line feature.

Unless MapOrientation is also specified this mode respects the direction of the line feature, so a line from right to left labels will have labels placed placed below the line feature.

BelowLine 

Labels can be placed below a line feature.

Unless MapOrientation is also specified this mode respects the direction of the line feature, so a line from right to left labels will have labels placed placed above the line feature.

MapOrientation 

Signifies that the AboveLine and BelowLine flags should respect the map's orientation rather than the feature's orientation.

Eg, AboveLine will always result in label's being placed above a line, regardless of the line's direction.

Definition at line 223 of file qgspallabeling.h.

§ MultiLineAlign

Enumerator
MultiLeft 
MultiCenter 
MultiRight 
MultiFollowPlacement 

Alignment follows placement of label, eg labels to the left of a feature will be drawn with right alignment

Definition at line 264 of file qgspallabeling.h.

§ ObstacleType

Valid obstacle types, which affect how features within the layer will act as obstacles for labels.

Enumerator
PolygonInterior 

avoid placing labels over interior of polygon (prefer placing labels totally outside or just slightly inside polygon)

PolygonBoundary 

avoid placing labels over boundary of polygon (prefer placing outside or completely inside polygon)

PolygonWhole 

avoid placing labels over ANY part of polygon. Where PolygonInterior will prefer to place labels with the smallest area of intersection between the label and the polygon, PolygonWhole will penalise any label which intersects with the polygon by an equal amount, so that placing labels over any part of the polygon is avoided.

Definition at line 277 of file qgspallabeling.h.

§ OffsetType

Behaviour modifier for label offset and distance, only applies in some label placement modes.

Enumerator
FromPoint 

Offset distance applies from point geometry.

FromSymbolBounds 

Offset distance applies from rendered symbol bounds.

Definition at line 213 of file qgspallabeling.h.

§ Placement

Placement modes which determine how label candidates are generated for a feature.

Enumerator
AroundPoint 

Arranges candidates in a circle around a point (or centroid of a polygon). Applies to point or polygon layers only.

OverPoint 
Line 

Arranges candidates over a point (or centroid of a polygon), or at a preset offset from the point. Applies to point or polygon layers only.

Arranges candidates parallel to a generalised line representing the feature or parallel to a polygon's perimeter. Applies to line or polygon layers only.

Curved 
Horizontal 

Arranges candidates following the curvature of a line feature. Applies to line layers only.

Arranges horizontal candidates scattered throughout a polygon feature. Applies to polygon layers only.

Free 

Arranges candidates scattered throughout a polygon feature. Candidates are rotated to respect the polygon's orientation. Applies to polygon layers only.

OrderedPositionsAroundPoint 

Candidates are placed in predefined positions around a point. Peference is given to positions with greatest cartographic appeal, eg top right, bottom right, etc. Applies to point layers only.

PerimeterCurved 

Definition at line 180 of file qgspallabeling.h.

§ PredefinedPointPosition

Positions for labels when using the QgsPalLabeling::OrderedPositionsAroundPoint placement mode.

Enumerator
TopLeft 

Label on top-left of point.

TopSlightlyLeft 
TopMiddle 

Label on top of point, slightly left of center.

Label directly above point

TopSlightlyRight 
TopRight 

Label on top of point, slightly right of center.

Label on top-right of point

MiddleLeft 

Label on left of point.

MiddleRight 

Label on right of point.

BottomLeft 

Label on bottom-left of point.

BottomSlightlyLeft 
BottomMiddle 

Label below point, slightly left of center.

Label directly below point

BottomSlightlyRight 
BottomRight 

Label below point, slightly right of center.

Label on bottom right of point

Definition at line 194 of file qgspallabeling.h.

§ QuadrantPosition

Enumerator
QuadrantAboveLeft 
QuadrantAbove 
QuadrantAboveRight 
QuadrantLeft 
QuadrantOver 
QuadrantRight 
QuadrantBelowLeft 
QuadrantBelow 
QuadrantBelowRight 

Definition at line 237 of file qgspallabeling.h.

§ SizeUnit

Units used for option sizes, before being converted to rendered sizes.

Enumerator
Points 
MM 
MapUnits 
Percent 

Definition at line 291 of file qgspallabeling.h.

§ UpsideDownLabels

Enumerator
Upright 

Upside-down labels (90 <= angle < 270) are shown upright.

ShowDefined 

Show upside down when rotation is layer- or data-defined.

ShowAll 

Show upside down for all labels, including dynamic ones.

Definition at line 250 of file qgspallabeling.h.

Constructor & Destructor Documentation

§ QgsPalLayerSettings() [1/2]

QgsPalLayerSettings::QgsPalLayerSettings ( )

Definition at line 92 of file qgspallabeling.cpp.

§ QgsPalLayerSettings() [2/2]

QgsPalLayerSettings::QgsPalLayerSettings ( const QgsPalLayerSettings s)

Definition at line 277 of file qgspallabeling.cpp.

§ ~QgsPalLayerSettings()

QgsPalLayerSettings::~QgsPalLayerSettings ( )

Definition at line 379 of file qgspallabeling.cpp.

Member Function Documentation

§ calculateLabelSize()

void QgsPalLayerSettings::calculateLabelSize ( const QFontMetricsF *  fm,
QString  text,
double &  labelX,
double &  labelY,
QgsFeature f = nullptr,
QgsRenderContext context = nullptr 
)

Definition at line 1259 of file qgspallabeling.cpp.

§ dataDefinedEvaluate()

bool QgsPalLayerSettings::dataDefinedEvaluate ( QgsPalLayerSettings::DataDefinedProperties  p,
QVariant &  exprVal,
QgsExpressionContext context = nullptr,
const QVariant &  originalValue = QVariant() 
) const

Get data defined property value from expression string or attribute field name.

Returns
true/false whether result is null or invalid
Note
not available in python bindings

Definition at line 1192 of file qgspallabeling.cpp.

§ dataDefinedIsActive()

bool QgsPalLayerSettings::dataDefinedIsActive ( QgsPalLayerSettings::DataDefinedProperties  p) const

Whether data definition is active.

Definition at line 1223 of file qgspallabeling.cpp.

§ dataDefinedMap()

QMap< QString, QString > QgsPalLayerSettings::dataDefinedMap ( QgsPalLayerSettings::DataDefinedProperties  p) const

Get property value as separate values split into Qmap.

Note
not available in python bindings

Definition at line 1114 of file qgspallabeling.cpp.

§ dataDefinedNames()

QMap<QgsPalLayerSettings::DataDefinedProperties, QPair<QString, int> > QgsPalLayerSettings::dataDefinedNames ( ) const
inline

Map of data defined enum to names and old-style indecies The QPair contains a new string for layer property key, and a reference to old-style numeric key (< QGIS 2.0)

Note
not available in python bindings;

Definition at line 628 of file qgspallabeling.h.

§ dataDefinedProperty()

QgsDataDefined * QgsPalLayerSettings::dataDefinedProperty ( QgsPalLayerSettings::DataDefinedProperties  p)

Get a data defined property pointer.

Note
helpful for Python access

Definition at line 1101 of file qgspallabeling.cpp.

§ dataDefinedUseExpression()

bool QgsPalLayerSettings::dataDefinedUseExpression ( QgsPalLayerSettings::DataDefinedProperties  p) const

Whether data definition is set to use an expression.

Definition at line 1239 of file qgspallabeling.cpp.

§ dataDefinedValue()

QVariant QgsPalLayerSettings::dataDefinedValue ( QgsPalLayerSettings::DataDefinedProperties  p,
QgsFeature f,
const QgsFields fields,
const QgsExpressionContext context = nullptr 
) const

Get data defined property value from expression string or attribute field name.

Returns
value inside QVariant
Note
not available in python bindings

Definition at line 1125 of file qgspallabeling.cpp.

§ format()

const QgsTextFormat& QgsPalLayerSettings::format ( ) const
inline

Returns the label text formatting settings, eg font settings, buffer settings, etc.

See also
setFormat()
Note
added in QGIS 3.0

Definition at line 634 of file qgspallabeling.h.

§ fromLayer()

QgsPalLayerSettings QgsPalLayerSettings::fromLayer ( QgsVectorLayer layer)
static
Note
added in 2.4

Definition at line 390 of file qgspallabeling.cpp.

§ getLabelExpression()

QgsExpression * QgsPalLayerSettings::getLabelExpression ( )

Returns the QgsExpression for this label settings.

Definition at line 398 of file qgspallabeling.cpp.

§ operator=()

QgsPalLayerSettings & QgsPalLayerSettings::operator= ( const QgsPalLayerSettings s)

copy operator - only copies the permanent members

Definition at line 290 of file qgspallabeling.cpp.

§ readFromLayer()

void QgsPalLayerSettings::readFromLayer ( QgsVectorLayer layer)

Definition at line 620 of file qgspallabeling.cpp.

§ readXml()

void QgsPalLayerSettings::readXml ( QDomElement &  elem)

Read settings from a DOM element.

Note
added in 2.12

Definition at line 846 of file qgspallabeling.cpp.

§ registerFeature()

void QgsPalLayerSettings::registerFeature ( QgsFeature f,
QgsRenderContext context,
QgsLabelFeature **  labelFeature = nullptr,
QgsGeometry obstacleGeometry = nullptr 
)

Register a feature for labelling.

Parameters
ffeature to label
contextrender context. The QgsExpressionContext contained within the render context must have already had the feature and fields sets prior to calling this method.
labelFeatureif using QgsLabelingEngine, this will receive the label feature. Not available in Python bindings.
obstacleGeometryoptional obstacle geometry, if a different geometry to the feature's geometry should be used as an obstacle for labels (eg, if the feature has been rendered with an offset point symbol, the obstacle geometry should represent the bounds of the offset symbol). If not set, the feature's original geometry will be used as an obstacle for labels. Not available in Python bindings.

Definition at line 1436 of file qgspallabeling.cpp.

§ removeAllDataDefinedProperties()

void QgsPalLayerSettings::removeAllDataDefinedProperties ( )

Clear all data-defined properties.

Note
added in QGIS 2.12

Definition at line 1078 of file qgspallabeling.cpp.

§ removeDataDefinedProperty()

void QgsPalLayerSettings::removeDataDefinedProperty ( QgsPalLayerSettings::DataDefinedProperties  p)

Set a property to static instead data defined.

Definition at line 1068 of file qgspallabeling.cpp.

§ setDataDefinedProperty()

void QgsPalLayerSettings::setDataDefinedProperty ( QgsPalLayerSettings::DataDefinedProperties  p,
bool  active,
bool  useExpr,
const QString &  expr,
const QString &  field 
)

Set a property as data defined.

Note
helpful for Python access

Definition at line 1044 of file qgspallabeling.cpp.

§ setFormat()

void QgsPalLayerSettings::setFormat ( const QgsTextFormat format)
inline

Sets the label text formatting settings, eg font settings, buffer settings, etc.

Parameters
formatlabel text format
See also
format()
Note
added in QGIS 3.0

Definition at line 641 of file qgspallabeling.h.

§ updateDataDefinedString()

QString QgsPalLayerSettings::updateDataDefinedString ( const QString &  value)

Convert old property value to new one as delimited values.

Note
not available in python bindings; as temporary solution until refactoring of project settings

Definition at line 1084 of file qgspallabeling.cpp.

§ writeToLayer()

void QgsPalLayerSettings::writeToLayer ( QgsVectorLayer layer)

Definition at line 762 of file qgspallabeling.cpp.

§ writeXml()

QDomElement QgsPalLayerSettings::writeXml ( QDomDocument &  doc)

Write settings into a DOM element.

Note
added in 2.12

Definition at line 957 of file qgspallabeling.cpp.

Member Data Documentation

§ addDirectionSymbol

bool QgsPalLayerSettings::addDirectionSymbol

Definition at line 450 of file qgspallabeling.h.

§ angleOffset

double QgsPalLayerSettings::angleOffset

Definition at line 496 of file qgspallabeling.h.

§ centroidInside

bool QgsPalLayerSettings::centroidInside

Definition at line 466 of file qgspallabeling.h.

§ centroidWhole

bool QgsPalLayerSettings::centroidWhole

Definition at line 465 of file qgspallabeling.h.

§ ct

QgsCoordinateTransform QgsPalLayerSettings::ct

Definition at line 648 of file qgspallabeling.h.

§ dataDefinedProperties

QMap< QgsPalLayerSettings::DataDefinedProperties, QgsDataDefined* > QgsPalLayerSettings::dataDefinedProperties

Map of current data defined properties.

Pointers to QgsDataDefined should never be null, the pointers are owned by this class

Definition at line 622 of file qgspallabeling.h.

§ decimals

int QgsPalLayerSettings::decimals

Definition at line 457 of file qgspallabeling.h.

§ displayAll

bool QgsPalLayerSettings::displayAll

Definition at line 514 of file qgspallabeling.h.

§ dist

double QgsPalLayerSettings::dist

Definition at line 478 of file qgspallabeling.h.

§ distInMapUnits

bool QgsPalLayerSettings::distInMapUnits

Definition at line 479 of file qgspallabeling.h.

§ distMapUnitScale

QgsMapUnitScale QgsPalLayerSettings::distMapUnitScale

Definition at line 480 of file qgspallabeling.h.

§ drawLabels

bool QgsPalLayerSettings::drawLabels

Whether to draw labels for this layer.

For some layers it may be desirable to register their features as obstacles for other labels without requiring labels to be drawn for the layer itself. In this case drawLabels can be set to false and obstacle set to true, which will result in the layer acting as an obstacle but having no labels of its own.

Note
added in QGIS 2.12

Definition at line 421 of file qgspallabeling.h.

§ enabled

bool QgsPalLayerSettings::enabled

Definition at line 412 of file qgspallabeling.h.

§ extentGeom

QgsGeometry QgsPalLayerSettings::extentGeom

Definition at line 652 of file qgspallabeling.h.

§ fieldIndex

int QgsPalLayerSettings::fieldIndex

Definition at line 646 of file qgspallabeling.h.

§ fieldName

QString QgsPalLayerSettings::fieldName

Definition at line 425 of file qgspallabeling.h.

§ fitInPolygonOnly

bool QgsPalLayerSettings::fitInPolygonOnly

True if only labels which completely fit within a polygon are allowed.

Definition at line 477 of file qgspallabeling.h.

§ fontLimitPixelSize

bool QgsPalLayerSettings::fontLimitPixelSize

Definition at line 510 of file qgspallabeling.h.

§ fontMaxPixelSize

int QgsPalLayerSettings::fontMaxPixelSize

Definition at line 512 of file qgspallabeling.h.

§ fontMinPixelSize

int QgsPalLayerSettings::fontMinPixelSize

Definition at line 511 of file qgspallabeling.h.

§ formatNumbers

bool QgsPalLayerSettings::formatNumbers

Definition at line 456 of file qgspallabeling.h.

§ isExpression

bool QgsPalLayerSettings::isExpression

Is this label made from a expression string eg FieldName || 'mm'.

Definition at line 429 of file qgspallabeling.h.

§ labelOffsetInMapUnits

bool QgsPalLayerSettings::labelOffsetInMapUnits

Definition at line 494 of file qgspallabeling.h.

§ labelOffsetMapUnitScale

QgsMapUnitScale QgsPalLayerSettings::labelOffsetMapUnitScale

Definition at line 495 of file qgspallabeling.h.

§ labelPerPart

bool QgsPalLayerSettings::labelPerPart

Definition at line 517 of file qgspallabeling.h.

§ leftDirectionSymbol

QString QgsPalLayerSettings::leftDirectionSymbol

Definition at line 451 of file qgspallabeling.h.

§ limitNumLabels

bool QgsPalLayerSettings::limitNumLabels

Definition at line 520 of file qgspallabeling.h.

§ maxCurvedCharAngleIn

double QgsPalLayerSettings::maxCurvedCharAngleIn

Definition at line 499 of file qgspallabeling.h.

§ maxCurvedCharAngleOut

double QgsPalLayerSettings::maxCurvedCharAngleOut

Definition at line 500 of file qgspallabeling.h.

§ maxNumLabels

int QgsPalLayerSettings::maxNumLabels

Definition at line 521 of file qgspallabeling.h.

§ mCurFeat

QgsFeature* QgsPalLayerSettings::mCurFeat

Definition at line 644 of file qgspallabeling.h.

§ mCurFields

QgsFields QgsPalLayerSettings::mCurFields

Definition at line 645 of file qgspallabeling.h.

§ mergeLines

bool QgsPalLayerSettings::mergeLines

Definition at line 518 of file qgspallabeling.h.

§ mFeatsRegPal

int QgsPalLayerSettings::mFeatsRegPal

Definition at line 655 of file qgspallabeling.h.

§ mFeatsSendingToPal

int QgsPalLayerSettings::mFeatsSendingToPal

Definition at line 654 of file qgspallabeling.h.

§ mFeaturesToLabel

int QgsPalLayerSettings::mFeaturesToLabel

Definition at line 653 of file qgspallabeling.h.

§ minFeatureSize

double QgsPalLayerSettings::minFeatureSize

Definition at line 523 of file qgspallabeling.h.

§ multilineAlign

MultiLineAlign QgsPalLayerSettings::multilineAlign

Definition at line 445 of file qgspallabeling.h.

§ obstacle

bool QgsPalLayerSettings::obstacle

Definition at line 524 of file qgspallabeling.h.

§ obstacleFactor

double QgsPalLayerSettings::obstacleFactor

Obstacle factor, where 1.0 = default, < 1.0 more likely to be covered by labels,

1.0 less likely to be covered

Definition at line 529 of file qgspallabeling.h.

§ obstacleType

ObstacleType QgsPalLayerSettings::obstacleType

Controls how features act as obstacles for labels.

Definition at line 533 of file qgspallabeling.h.

§ offsetType

OffsetType QgsPalLayerSettings::offsetType

Offset type for layer (only applies in certain placement modes)

Definition at line 482 of file qgspallabeling.h.

§ placeDirectionSymbol

DirectionSymbols QgsPalLayerSettings::placeDirectionSymbol

Definition at line 453 of file qgspallabeling.h.

§ placement

Placement QgsPalLayerSettings::placement

Definition at line 462 of file qgspallabeling.h.

§ placementFlags

unsigned int QgsPalLayerSettings::placementFlags

Definition at line 463 of file qgspallabeling.h.

§ plusSign

bool QgsPalLayerSettings::plusSign

Definition at line 458 of file qgspallabeling.h.

§ predefinedPositionOrder

QVector< PredefinedPointPosition > QgsPalLayerSettings::predefinedPositionOrder

Ordered list of predefined label positions for points.

Positions earlier in the list will be prioritised over later positions. Only used when the placement is set to QgsPalLayerSettings::OrderedPositionsAroundPoint.

Note
not available in Python bindings

Definition at line 473 of file qgspallabeling.h.

§ preserveRotation

bool QgsPalLayerSettings::preserveRotation

Definition at line 497 of file qgspallabeling.h.

§ previewBkgrdColor

QColor QgsPalLayerSettings::previewBkgrdColor

Definition at line 435 of file qgspallabeling.h.

§ priority

int QgsPalLayerSettings::priority

Definition at line 502 of file qgspallabeling.h.

§ ptOne

QgsPoint QgsPalLayerSettings::ptOne

Definition at line 651 of file qgspallabeling.h.

§ ptZero

QgsPoint QgsPalLayerSettings::ptZero

Definition at line 650 of file qgspallabeling.h.

§ quadOffset

QuadrantPosition QgsPalLayerSettings::quadOffset

Definition at line 490 of file qgspallabeling.h.

§ repeatDistance

double QgsPalLayerSettings::repeatDistance

Definition at line 484 of file qgspallabeling.h.

§ repeatDistanceMapUnitScale

QgsMapUnitScale QgsPalLayerSettings::repeatDistanceMapUnitScale

Definition at line 486 of file qgspallabeling.h.

§ repeatDistanceUnit

SizeUnit QgsPalLayerSettings::repeatDistanceUnit

Definition at line 485 of file qgspallabeling.h.

§ reverseDirectionSymbol

bool QgsPalLayerSettings::reverseDirectionSymbol

Definition at line 454 of file qgspallabeling.h.

§ rightDirectionSymbol

QString QgsPalLayerSettings::rightDirectionSymbol

Definition at line 452 of file qgspallabeling.h.

§ scaleMax

int QgsPalLayerSettings::scaleMax

Definition at line 508 of file qgspallabeling.h.

§ scaleMin

int QgsPalLayerSettings::scaleMin

Definition at line 507 of file qgspallabeling.h.

§ scaleVisibility

bool QgsPalLayerSettings::scaleVisibility

Definition at line 506 of file qgspallabeling.h.

§ substitutions

QgsStringReplacementCollection QgsPalLayerSettings::substitutions

Substitution collection for automatic text substitution with labels.

Definition at line 438 of file qgspallabeling.h.

§ upsidedownLabels

UpsideDownLabels QgsPalLayerSettings::upsidedownLabels

Definition at line 515 of file qgspallabeling.h.

§ useSubstitutions

bool QgsPalLayerSettings::useSubstitutions

True if substitutions should be applied.

Definition at line 440 of file qgspallabeling.h.

§ wrapChar

QString QgsPalLayerSettings::wrapChar

Definition at line 444 of file qgspallabeling.h.

§ xform

const QgsMapToPixel* QgsPalLayerSettings::xform

Definition at line 647 of file qgspallabeling.h.

§ xOffset

double QgsPalLayerSettings::xOffset

Definition at line 492 of file qgspallabeling.h.

§ yOffset

double QgsPalLayerSettings::yOffset

Definition at line 493 of file qgspallabeling.h.

§ zIndex

double QgsPalLayerSettings::zIndex

Z-Index of label, where labels with a higher z-index are rendered on top of labels with a lower z-index.

Definition at line 536 of file qgspallabeling.h.


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