Class: QgsLayoutNorthArrowHandler

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

Added in version 3.14.

Class Hierarchy

Base classes

QObject

Methods

arrowRotation	Returns the rotation to be used for the arrow, in degrees clockwise.
linkedMap	Returns the linked rotation map, if set.
northMode	Returns the mode used to calculate the arrow rotation.
northOffset	Returns the offset added to the arrows's rotation from a map's North.
setLinkedMap	Sets the linked map item.
setNorthMode	Sets the mode used to calculate the arrow rotation.
setNorthOffset	Sets the offset added to the arrows's rotation from a map's North.

Signals

arrowRotationChanged

Emitted on arrow rotation change

Attributes

GridNorth
TrueNorth

class qgis.core.QgsLayoutNorthArrowHandler

Bases: QObject

__init__(parent: QObject | None)

Constructor for QgsLayoutNorthArrowHandler, with the specified parent object.

Parameters:

parent (Optional[QObject])

GridNorth = 0

class NorthMode

Bases: int

TrueNorth = 1

arrowRotation(self) → float

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

Return type:

float

signal arrowRotationChanged(newRotation: float)

Emitted on arrow rotation change

Parameters:

newRotation (float)

linkedMap(self) → QgsLayoutItemMap | None

Returns the linked rotation map, if set. An None means arrow calculation is disabled.

See also

setLinkedMap()

Return type:

Optional[QgsLayoutItemMap]

northMode(self) → QgsLayoutNorthArrowHandler.NorthMode

Returns the mode used to calculate the arrow rotation.

See also

setNorthMode()

See also

northOffset()

Return type:

QgsLayoutNorthArrowHandler.NorthMode

northOffset(self) → float

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

See also

setNorthOffset()

See also

northMode()

Return type:

float

setLinkedMap(self, map: QgsLayoutItemMap | None)

Sets the linked map item.

See also

linkedMap()

Parameters:

map (Optional[QgsLayoutItemMap])

setNorthMode(self, mode: QgsLayoutNorthArrowHandler.NorthMode)

Sets the mode used to calculate the arrow rotation.

See also

northMode()

See also

setNorthOffset()

Parameters:

mode (QgsLayoutNorthArrowHandler.NorthMode)

setNorthOffset(self, offset: float)

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

See also

northOffset()

See also

setNorthMode()

Parameters:

offset (float)