Class: QgsAdvancedDigitizingDockWidget¶

class qgis.gui.QgsAdvancedDigitizingDockWidget(canvas: QgsMapCanvas, parent: QWidget = None)¶

Bases: qgis._gui.QgsDockWidget

Create an advanced digitizing dock widget

Parameters:	canvas – The map canvas on which the widget operates parent – The parent

The QgsAdvancedDigitizingDockWidget class is a dockable widget used to handle the CAD tools on top of a selection of map tools. It handles both the UI and the constraints. Constraints are applied by implementing filters called from QgsMapToolAdvancedDigitizing.

Methods

actionEvent

addPoint Adds point to the CAD point list

additionalConstraint Returns the additional constraints which are used to place perpendicular/parallel segments to snapped segments on the canvas

alignToSegment align to segment for additional constraint.

applyConstraints apply the CAD constraints.

cadEnabled determines if CAD tools are enabled or if map tools behaves “nomally”

canvasKeyPressEventFilter Filter key events to e.g.

changeEvent

childEvent

clear Clear any cached previous clicks and helper lines

clearPoints Removes all points from the CAD point list

closeEvent

commonAngleConstraint Returns true if a constraint on a common angle is active

connectNotify

constraintAngle Returns the CadConstraint on the angle

constraintDistance Returns the CadConstraint on the distance

constraintX Returns the CadConstraint on the X coordinate

constraintY Returns the CadConstraint on the Y coordinate

constructionMode construction mode is used to draw intermediate points.

contextMenuEvent

create

currentPoint The last point.

customEvent

destroy

disable Disable the widget.

disconnectNotify

dragEnterEvent

dragLeaveEvent

dragMoveEvent

dropEvent

enable Enables the tool (call this when an appropriate map tool is set and in the condition to make use of cad digitizing) Normally done automatically from QgsMapToolAdvancedDigitizing.activate() but may need to be fine tuned if the map tool depends on preconditions like a feature selection.

enableAction Returns the action used to enable/disable the tools

enterEvent

event

eventFilter

focusInEvent

focusNextChild

focusNextPrevChild

focusOutEvent

focusPreviousChild

hideEvent Disables the CAD tools when hiding the dock

initPainter

initStyleOption

inputMethodEvent

isSignalConnected

keyPressEvent

keyReleaseEvent

leaveEvent

mapPointMatch Returns the point locator match

metric

mouseDoubleClickEvent

mouseMoveEvent

mousePressEvent

mouseReleaseEvent

moveEvent

nativeEvent

paintEvent

penultimatePoint The penultimate point.

pointsCount The number of points in the CAD point helper list

previousPoint The previous point.

receivers

releaseLocks unlock all constraints

resizeEvent

sender

senderSignalIndex

setPoints Configures list of current CAD points

sharedPainter

showEvent

snappedSegment Snapped to a segment

snappedToVertex Is it snapped to a vertex

tabletEvent

timerEvent

updateCadPaintItem Updates canvas item that displays constraints on the ma

updateMicroFocus

wheelEvent

Signals

pointChanged Sometimes a constraint may change the current point out of a mouse event.

popWarning Remove any previously emitted warnings (if any) [signal]

pushWarning Push a warning

Attributes

AbsoluteAngle

NoConstraint

Parallel

Perpendicular

RelativeAngle

RelativeCoordinates

AbsoluteAngle = 1¶

class AdditionalConstraint¶: Bases: int

class CadCapacities¶

Bases: sip.wrapper

QgsAdvancedDigitizingDockWidget.CadCapacities(Union[QgsAdvancedDigitizingDockWidget.CadCapacities, QgsAdvancedDigitizingDockWidget.CadCapacity]) QgsAdvancedDigitizingDockWidget.CadCapacities(QgsAdvancedDigitizingDockWidget.CadCapacities)

baseClass¶: alias of QgsAdvancedDigitizingDockWidget

class CadCapacity¶: Bases: int

class CadConstraint(lineEdit: QLineEdit, lockerButton: QToolButton, relativeButton: QToolButton = None, repeatingLockButton: QToolButton = None)¶

Bases: sip.wrapper

Constructor for CadConstraint.

Parameters:	lineEdit – associated line edit for constraint value lockerButton – associated button for locking constraint relativeButton – optional button for toggling relative constraint mode repeatingLockButton – optional button for toggling repeating lock mode

QgsAdvancedDigitizingDockWidget.CadConstraint(QgsAdvancedDigitizingDockWidget.CadConstraint)

The CadConstraint is an abstract class for all basic constraints (angle/distance/x/y). It contains all values (locked, value, relative) and pointers to corresponding widgets.

Note

Relative is not mandatory since it is not used for distance.

HardLock = 2¶

class LockMode¶: Bases: int

NoLock = 0¶

SoftLock = 1¶

isLocked(self) → bool¶: Is any kind of lock mode enabled

isRepeatingLock(self) → bool¶: Returns true if a repeating lock is set for the constraint. Repeating locks are not automatically cleared after a new point is added.

See also

setRepeatingLock()

New in version 2.16.

lineEdit(self) → QLineEdit¶: The line edit that manages the value of the constraint

lockMode(self) → QgsAdvancedDigitizingDockWidget.CadConstraint.LockMode¶

The current lock mode of this constraint

Returns:	Lock mode

relative(self) → bool¶: Is the constraint in relative mode

setLockMode(self, mode: QgsAdvancedDigitizingDockWidget.CadConstraint.LockMode)¶: Set the lock mode

setRelative(self, relative: bool)¶: Set if the constraint should be treated relative

setRepeatingLock(self, repeating: bool)¶

Sets whether a repeating lock is set for the constraint. Repeating locks are not automatically cleared after a new point is added.

Parameters:	repeating – set to true to set the lock to repeat automatically

See also

isRepeatingLock()

New in version 2.16.

setValue(self, value: float, updateWidget: bool = True)¶

Set the value of the constraint

Parameters:	value – new value for constraint updateWidget – set to false to prevent automatically updating the associated widget’s value

toggleLocked(self)¶: Toggle lock mode

toggleRelative(self)¶: Toggle relative mode

value(self) → float¶: The value of the constraint

NoConstraint = 0¶

Parallel = 2¶

Perpendicular = 1¶

RelativeAngle = 2¶

RelativeCoordinates = 4¶

actionEvent()¶

addPoint(self, point: QgsPointXY)¶: Adds point to the CAD point list

New in version 3.0.

additionalConstraint(self) → QgsAdvancedDigitizingDockWidget.AdditionalConstraint¶: Returns the additional constraints which are used to place perpendicular/parallel segments to snapped segments on the canvas

alignToSegment(self, e: QgsMapMouseEvent, lockMode: QgsAdvancedDigitizingDockWidget.CadConstraint.LockMode = QgsAdvancedDigitizingDockWidget.CadConstraint.HardLock) → bool¶: align to segment for additional constraint. If additional constraints are used, this will determine the angle to be locked depending on the snapped segment.

New in version 3.0.

applyConstraints(self, e: QgsMapMouseEvent) → bool¶

apply the CAD constraints. The will modify the position of the map event in map coordinates by applying the CAD constraints.

Returns:	false if no solution was found (invalid constraints)

cadEnabled(self) → bool¶: determines if CAD tools are enabled or if map tools behaves “nomally”

canvasKeyPressEventFilter(self, e: QKeyEvent) → bool¶

Filter key events to e.g. toggle construction mode or adapt constraints

Parameters:	e – A mouse event (may be modified)
Returns:	If the event is hidden (construction mode hides events from the maptool)

changeEvent()¶

childEvent()¶

clear(self)¶: Clear any cached previous clicks and helper lines

clearPoints(self)¶: Removes all points from the CAD point list

New in version 3.0.

closeEvent()¶

commonAngleConstraint(self) → bool¶: Returns true if a constraint on a common angle is active

connectNotify()¶

constraintAngle(self) → QgsAdvancedDigitizingDockWidget.CadConstraint¶: Returns the CadConstraint on the angle

constraintDistance(self) → QgsAdvancedDigitizingDockWidget.CadConstraint¶: Returns the CadConstraint on the distance

constraintX(self) → QgsAdvancedDigitizingDockWidget.CadConstraint¶: Returns the CadConstraint on the X coordinate

constraintY(self) → QgsAdvancedDigitizingDockWidget.CadConstraint¶: Returns the CadConstraint on the Y coordinate

constructionMode(self) → bool¶: construction mode is used to draw intermediate points. These points won’t be given any further (i.e. to the map tools)

contextMenuEvent()¶

create()¶

currentPoint(self) → Tuple[QgsPointXY, bool]¶: The last point. Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both “normal” points and intermediate points (construction mode).

customEvent()¶

destroy()¶

disable(self)¶: Disable the widget. Normally done automatically from QgsMapToolAdvancedDigitizing.deactivate()

disconnectNotify()¶

dragEnterEvent()¶

dragLeaveEvent()¶

dragMoveEvent()¶

dropEvent()¶

enable(self)¶: Enables the tool (call this when an appropriate map tool is set and in the condition to make use of cad digitizing) Normally done automatically from QgsMapToolAdvancedDigitizing.activate() but may need to be fine tuned if the map tool depends on preconditions like a feature selection.

enableAction(self) → QAction¶: Returns the action used to enable/disable the tools

enterEvent()¶

event()¶

eventFilter()¶

focusInEvent()¶

focusNextChild()¶

focusNextPrevChild()¶

focusOutEvent()¶

focusPreviousChild()¶

hideEvent(self, QHideEvent)¶: Disables the CAD tools when hiding the dock

initPainter()¶

initStyleOption()¶

inputMethodEvent()¶

isSignalConnected()¶

keyPressEvent(self, e: QKeyEvent)¶

keyReleaseEvent()¶

leaveEvent()¶

mapPointMatch(self) → QgsPointLocator.Match¶: Returns the point locator match

New in version 3.4.

metric()¶

mouseDoubleClickEvent()¶

mouseMoveEvent()¶

mousePressEvent()¶

mouseReleaseEvent()¶

moveEvent()¶

nativeEvent()¶

paintEvent()¶

penultimatePoint(self) → Tuple[QgsPointXY, bool]¶: The penultimate point. Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both “normal” points and intermediate points (construction mode).

pointChanged¶

Sometimes a constraint may change the current point out of a mouse event. This happens normally when a constraint is toggled.

Parameters:	point – The last known digitizing point. Can be used to emulate a mouse event. [signal]

pointsCount(self) → int¶: The number of points in the CAD point helper list

popWarning¶: Remove any previously emitted warnings (if any) [signal]

previousPoint(self) → Tuple[QgsPointXY, bool]¶: The previous point. Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both “normal” points and intermediate points (construction mode).

pushWarning¶

Push a warning

Parameters:	message – An informative message [signal]

receivers()¶

releaseLocks(self, releaseRepeatingLocks: bool = True)¶

unlock all constraints

Parameters:	releaseRepeatingLocks – set to false to preserve the lock for any constraints set to repeating lock mode

New in version 3.0.

resizeEvent()¶

sender()¶

senderSignalIndex()¶

setPoints(self, points: Iterable[QgsPointXY])¶

Configures list of current CAD points

Some map tools may find it useful to override list of CAD points that is otherwise automatically populated when user clicks with left mouse button on map canvas.

New in version 3.0.

sharedPainter()¶

showEvent()¶

snappedSegment(self) → List[QgsPointXY]¶: Snapped to a segment

snappedToVertex(self) → bool¶: Is it snapped to a vertex

tabletEvent()¶

timerEvent()¶

updateCadPaintItem(self)¶: Updates canvas item that displays constraints on the ma

New in version 3.0.

updateMicroFocus()¶

wheelEvent()¶