Class: QgsMapToolZoom

class qgis.gui.QgsMapToolZoom

Bases: QgsMapTool

A map tool for zooming into the map.

See also

QgsMapTool

QgsMapToolZoom(canvas: QgsMapCanvas, zoomOut: bool) constructor

Methods

canvasMoveEvent

param e:

canvasPressEvent

param e:

canvasReleaseEvent

param e:

childEvent

connectNotify

customEvent

deactivate

disconnectNotify

flags

rtype:

QgsMapTool.Flags

isSignalConnected

keyPressEvent

param e:

keyReleaseEvent

param e:

layer

Returns the map layer with the matching ID, or None if no layers could be found.

receivers

sender

senderSignalIndex

setToolName

Sets the tool's name.

timerEvent

toCanvasCoordinates

Transforms a point from map coordinates to screen coordinates.

toLayerCoordinates

Transforms a point from screen coordinates to layer coordinates.

toLayerCoordinatesV2

Transforms a point from map coordinates to layer coordinates.

toMapCoordinates

Transforms a point from screen coordinates to map coordinates.

toMapCoordinatesV2

Transforms a point from layer coordinates to map coordinates (which is different in case reprojection is used).

canvasMoveEvent(self, e: QgsMapMouseEvent)
Parameters:

e (QgsMapMouseEvent) –

canvasPressEvent(self, e: QgsMapMouseEvent)
Parameters:

e (QgsMapMouseEvent) –

canvasReleaseEvent(self, e: QgsMapMouseEvent)
Parameters:

e (QgsMapMouseEvent) –

childEvent(self, QChildEvent)
connectNotify(self, QMetaMethod)
customEvent(self, QEvent)
deactivate(self)
disconnectNotify(self, QMetaMethod)
flags(self) QgsMapTool.Flags
Return type:

QgsMapTool.Flags

isSignalConnected(self, QMetaMethod) bool
keyPressEvent(self, e: QKeyEvent)
Parameters:

e (QKeyEvent) –

keyReleaseEvent(self, e: QKeyEvent)
Parameters:

e (QKeyEvent) –

layer(self, id: str) QgsMapLayer

Returns the map layer with the matching ID, or None if no layers could be found.

This method searches both layers associated with the map canvas (see QgsMapCanvas.layers()) and layers from the QgsProject associated with the canvas. It can be used to resolve layer IDs to layers which may be visible in the canvas, but not associated with a QgsProject.

New in version 3.22.

receivers(self, PYQT_SIGNAL) int
sender(self) QObject
senderSignalIndex(self) int
setToolName(self, name: str)

Sets the tool’s name.

See also

toolName()

New in version 3.20.

timerEvent(self, QTimerEvent)
toCanvasCoordinates(self, point: QgsPointXY) QPoint

Transforms a point from map coordinates to screen coordinates.

toLayerCoordinates(self, layer: QgsMapLayer, point: QPoint) QgsPointXY

Transforms a point from screen coordinates to layer coordinates.

toLayerCoordinates(self, layer: QgsMapLayer, point: QgsPointXY) -> QgsPointXY Transforms a point from map coordinates to layer coordinates.

toLayerCoordinates(self, layer: QgsMapLayer, rect: QgsRectangle) -> QgsRectangle Transforms a rect from map coordinates to layer coordinates.

toLayerCoordinatesV2(self, layer: QgsMapLayer, point: QgsPoint) QgsPoint

Transforms a point from map coordinates to layer coordinates.

Note

This method is available in the Python bindings as toLayerCoordinatesV2.

toMapCoordinates(self, point: QPoint) QgsPointXY

Transforms a point from screen coordinates to map coordinates.

toMapCoordinates(self, layer: QgsMapLayer, point: QgsPointXY) -> QgsPointXY Transforms a point from layer coordinates to map coordinates (which is different in case reprojection is used).

toMapCoordinatesV2(self, layer: QgsMapLayer, point: QgsPoint) QgsPoint

Transforms a point from layer coordinates to map coordinates (which is different in case reprojection is used).

Note

This method is available in the Python bindings as toMapCoordinatesV2.