QgsVertexMarker Class Reference

A map canvas item for marking vertices of features using e.g. More...

#include <qgsvertexmarker.h>

Inheritance diagram for QgsVertexMarker:

Public Types
enum	IconType {   ICON_NONE , ICON_CROSS , ICON_X , ICON_BOX ,   ICON_CIRCLE , ICON_DOUBLE_TRIANGLE , ICON_TRIANGLE , ICON_RHOMBUS ,   ICON_INVERTED_TRIANGLE }
	Icons. More...

Public Member Functions
	QgsVertexMarker (QgsMapCanvas *mapCanvas)
QRectF	boundingRect () const override
QgsPointXY	center () const
	Returns the center point of the marker, in map coordinates.
QColor	color () const
	Returns the stroke color for the marker.
QColor	fillColor () const
	Returns the fill color for the marker.
void	paint (QPainter *p) override
	function to be implemented by derived classes
void	setCenter (const QgsPointXY &point)
	Sets the center point of the marker, in map coordinates.
void	setColor (const QColor &color)
	Sets the stroke color for the marker.
void	setFillColor (const QColor &color)
	Sets the fill color for the marker.
void	setIconSize (int iconSize)
void	setIconType (int iconType)
void	setPenWidth (int width)
void	updatePosition () override
	called on changed extent or resize event to update position of the item
Public Member Functions inherited from QgsMapCanvasItem
QRectF	boundingRect () const override
QgsRectangle	rect () const
	returns canvas item rectangle in map units
void	setRect (const QgsRectangle &r, bool resetRotation=true)
	sets canvas item rectangle in map units
QPointF	toCanvasCoordinates (const QgsPointXY &point) const
	transformation from map coordinates to screen coordinates
QgsPointXY	toMapCoordinates (QPoint point) const
	transformation from screen coordinates to map coordinates

Additional Inherited Members
Protected Member Functions inherited from QgsMapCanvasItem
	QgsMapCanvasItem (QgsMapCanvas *mapCanvas)
	protected constructor: cannot be constructed directly
	~QgsMapCanvasItem () override
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget=nullptr) override
bool	setRenderContextVariables (QPainter *p, QgsRenderContext &context) const
	Sets render context parameters.
void	updateCanvas ()
	schedules map canvas for repaint
Protected Attributes inherited from QgsMapCanvasItem
QSizeF	mItemSize
	cached size of the item (to return in boundingRect())
QgsMapCanvas *	mMapCanvas = nullptr
	pointer to map canvas
QgsRectangle	mRect
	cached canvas item rectangle in map coordinates encodes position (xmin,ymax) and size (width/height) used to re-position and re-size the item on zoom/pan while waiting for the renderer to complete.
double	mRectRotation = 0.0

Detailed Description

A map canvas item for marking vertices of features using e.g.

circles or 'x'.

Definition at line 36 of file qgsvertexmarker.h.

Member Enumeration Documentation

IconType

enum QgsVertexMarker::IconType

Icons.

Enumerator
ICON_NONE
ICON_CROSS
ICON_X
ICON_BOX
ICON_CIRCLE
ICON_DOUBLE_TRIANGLE	Added in QGIS 3.0.
ICON_TRIANGLE	Added in QGIS 3.12.
ICON_RHOMBUS	Added in QGIS 3.12.
ICON_INVERTED_TRIANGLE	Added in QGIS 3.20.

Definition at line 48 of file qgsvertexmarker.h.

Constructor & Destructor Documentation

QgsVertexMarker()

QgsVertexMarker::QgsVertexMarker

(

QgsMapCanvas *

mapCanvas

)

Definition at line 20 of file qgsvertexmarker.cpp.

Member Function Documentation

boundingRect()

QRectF QgsVertexMarker::boundingRect ( ) const

override

Definition at line 137 of file qgsvertexmarker.cpp.

center()

QgsPointXY QgsVertexMarker::center ( ) const

inline

Returns the center point of the marker, in map coordinates.

See also

setCenter()

Since

QGIS 3.18

Definition at line 76 of file qgsvertexmarker.h.

color()

QColor QgsVertexMarker::color ( ) const

inline

Returns the stroke color for the marker.

See also

setColor()

fillColor()

Definition at line 94 of file qgsvertexmarker.h.

fillColor()

QColor QgsVertexMarker::fillColor ( ) const

inline

Returns the fill color for the marker.

This setting only applies to some icon types.

See also

setFillColor()

color()

Definition at line 110 of file qgsvertexmarker.h.

paint()

void QgsVertexMarker::paint ( QPainter * painter )

overridevirtual

function to be implemented by derived classes

Implements QgsMapCanvasItem.

Definition at line 62 of file qgsvertexmarker.cpp.

setCenter()

void QgsVertexMarker::setCenter

(

const QgsPointXY &

point

)

Sets the center point of the marker, in map coordinates.

See also

center()

Definition at line 38 of file qgsvertexmarker.cpp.

setColor()

void QgsVertexMarker::setColor

(

const QColor &

color

)

Sets the stroke color for the marker.

See also

color()

setFillColor()

Definition at line 45 of file qgsvertexmarker.cpp.

setFillColor()

void QgsVertexMarker::setFillColor

(

const QColor &

color

)

Sets the fill color for the marker.

This setting only applies to some icon types.

See also

fillColor()

setColor()

Definition at line 51 of file qgsvertexmarker.cpp.

setIconSize()

void QgsVertexMarker::setIconSize

(

int

iconSize

)

Definition at line 32 of file qgsvertexmarker.cpp.

setIconType()

void QgsVertexMarker::setIconType

(

int

iconType

)

Definition at line 26 of file qgsvertexmarker.cpp.

setPenWidth()

void QgsVertexMarker::setPenWidth

(

int

width

)

Definition at line 57 of file qgsvertexmarker.cpp.

updatePosition()

void QgsVertexMarker::updatePosition ( )

overridevirtual

called on changed extent or resize event to update position of the item

Reimplemented from QgsMapCanvasItem.

Definition at line 143 of file qgsvertexmarker.cpp.

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

• /build/qgis-3.99.0+git20251210+2fe06baccd8+99sid/src/gui/qgsvertexmarker.h
• /build/qgis-3.99.0+git20251210+2fe06baccd8+99sid/src/gui/qgsvertexmarker.cpp