QgsLayoutNorthArrowHandler Class Reference

An object which handles north-arrow type behavior for layout items. More...

#include <qgslayoutnortharrowhandler.h>

Inheritance diagram for QgsLayoutNorthArrowHandler:

Public Types
enum	NorthMode { GridNorth = 0 , TrueNorth }
	Method for syncing rotation to a map's North direction. More...

Signals
void	arrowRotationChanged (double newRotation)
	Emitted on arrow rotation change.

Public Member Functions
	QgsLayoutNorthArrowHandler (QObject *parent)
	Constructor for QgsLayoutNorthArrowHandler, with the specified parent object.
double	arrowRotation () const
	Returns the rotation to be used for the arrow, in degrees clockwise.
QgsLayoutItemMap *	linkedMap () const
	Returns the linked rotation map, if set.
NorthMode	northMode () const
	Returns the mode used to calculate the arrow rotation.
double	northOffset () const
	Returns the offset added to the arrows's rotation from a map's North.
void	setLinkedMap (QgsLayoutItemMap *map)
	Sets the linked map item.
void	setNorthMode (NorthMode mode)
	Sets the mode used to calculate the arrow rotation.
void	setNorthOffset (double offset)
	Sets the offset added to the arrows's rotation from a map's North.

Detailed Description

An object which handles north-arrow type behavior for layout items.

Since

QGIS 3.14

Definition at line 32 of file qgslayoutnortharrowhandler.h.

Member Enumeration Documentation

NorthMode

enum QgsLayoutNorthArrowHandler::NorthMode

Method for syncing rotation to a map's North direction.

Enumerator
GridNorth	Align to grid north.
TrueNorth	Align to true north.

Definition at line 38 of file qgslayoutnortharrowhandler.h.

Constructor & Destructor Documentation

QgsLayoutNorthArrowHandler()

QgsLayoutNorthArrowHandler::QgsLayoutNorthArrowHandler

(

QObject *

parent

)

Constructor for QgsLayoutNorthArrowHandler, with the specified parent object.

Definition at line 25 of file qgslayoutnortharrowhandler.cpp.

Member Function Documentation

arrowRotation()

double QgsLayoutNorthArrowHandler::arrowRotation ( ) const

inline

Returns the rotation to be used for the arrow, in degrees clockwise.

Definition at line 52 of file qgslayoutnortharrowhandler.h.

arrowRotationChanged

void QgsLayoutNorthArrowHandler::arrowRotationChanged ( double  newRotation )

signal

Emitted on arrow rotation change.

linkedMap()

QgsLayoutItemMap * QgsLayoutNorthArrowHandler::linkedMap

(

)

const

Returns the linked rotation map, if set.

An nullptr means arrow calculation is disabled.

See also

setLinkedMap()

Definition at line 108 of file qgslayoutnortharrowhandler.cpp.

northMode()

NorthMode QgsLayoutNorthArrowHandler::northMode ( ) const

inline

Returns the mode used to calculate the arrow rotation.

See also

setNorthMode()

northOffset()

Definition at line 74 of file qgslayoutnortharrowhandler.h.

northOffset()

double QgsLayoutNorthArrowHandler::northOffset ( ) const

inline

Returns the offset added to the arrows's rotation from a map's North.

See also

setNorthOffset()

northMode()

Definition at line 88 of file qgslayoutnortharrowhandler.h.

setLinkedMap()

void QgsLayoutNorthArrowHandler::setLinkedMap

(

QgsLayoutItemMap *

map

)

Sets the linked map item.

See also

linkedMap()

Definition at line 82 of file qgslayoutnortharrowhandler.cpp.

setNorthMode()

void QgsLayoutNorthArrowHandler::setNorthMode

(

QgsLayoutNorthArrowHandler::NorthMode

mode

)

Sets the mode used to calculate the arrow rotation.

See also

northMode()

setNorthOffset()

Definition at line 113 of file qgslayoutnortharrowhandler.cpp.

setNorthOffset()

void QgsLayoutNorthArrowHandler::setNorthOffset

(

double

offset

)

Sets the offset added to the arrows's rotation from a map's North.

See also

northOffset()

setNorthMode()

Definition at line 119 of file qgslayoutnortharrowhandler.cpp.

---

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

• /build/qgis-3.41.0+git20241110+fda2aa46e9a+99sid/src/core/layout/qgslayoutnortharrowhandler.h
• /build/qgis-3.41.0+git20241110+fda2aa46e9a+99sid/src/core/layout/qgslayoutnortharrowhandler.cpp