Creates a new SinglePointDeleteHandle.
Protected activeIndicates whether the handle is active.
Protected eventedThe EventedSupport used to emit events.
Typically, handles use emitEditShapeEvent to emit "EditShape" events. This is only used in advanced cases, for example when compositing multiple handles.
The index of the point in the point list, for this handle.
The point to snap to.
This is used to paint a snap icon.
Typically, this is set by subclasses, for example in PointDragHandle.drag.
Called when handle goes from inactive to active state.
The event that triggered the activation
The edit context
Called when the handle leaves the active state.
The event that triggered the deactivation
The edit context
Protected emitEmits an "EditShape" event.
Typically, a handle emits this right after changing the shape.
The shape to emit an edit event for
The status of the edit. Typically, this is IN_PROGRESS while the handle is being dragged / changed, and EditShapeStatus.FINISHED when the drag ends.
Returns the cursor for this point handle.
Returns the default handle icon style.
This is the handle icon style that is used if no handleIconStyle was passed into the constructor.
By default, point list delete handles don't draw any icons.
The edit context
null
Returns the drape target for this point handle.
This will make sure point handles with z=0 are correctly draped or not, and on the correct DrapeTarget (terrain or a 3D Tiles mesh). Icons for handles at an altitude are never draped.
In detail, this uses the following heuristics to determine a DrapeTarget: By default, this uses the drapeTarget of getHandleIconStyle. If that is not defined, this looks at the DrapeTarget.NOT_DRAPED. If it is zero, this looks for a 3D Tiles mesh layer on the map that has isDrapeTarget set. If a 3D tiles mesh layer is found, this returns DrapeTarget.ALL so the handles are draped on the mesh (and terrain, in case the data lies outside the mesh). If no mesh layer is found, this returns DrapeTarget.NOT_DRAPED.
The edit context
Returns the handle icon style, to be used for visualizing point handles in onDraw.
This returns the handle icon style that was passed into the constructor. If no handle icon style was passed into the constructor, this returns the context's handle icon style.
The edit context
Checks whether the given input event interacts with the point handle.
By default, this returns true if the mouse or finger is within a
certain distance of the point. A larger distance is used for touch events than for mouse events.
Populates a context menu for this handle.
The default implementation adds:
Called when this handle should draw shapes on the map.
By default, the implementation draws:
nullnullThis method allows the handle to draw labels on the map.
For example, you can use this to show coordinates of points, or the current radius of a circle on top of an edit handle.
The default implementation draws nothing.
The label canvas to draw labels on
The editing context.
Handles the given context.
The editing handle can modify the feature (or its shape) based on the type and state of the input event. For example, a drag event that moves a circle.
The default implementation ignores the event.
the gesture event.
the edit context.
Processes an event.
This is typically where you change a shape. For example move a point to where the mouse is dragged, like a PointDragHandle does.
The event to process
The edit context
Checks if this handle should activate.
The default implementation activates the handle:
Checks if the handle should deactivate.
The default implementation always returns true, so the handle deactivates immediately after activation.
Checks if this handle should start processing.
The default implementation starts processing:
Called when (another) handle changes the feature or shape, as indicated by the "EditShape" event.
This handle can update its own state, based on the changed shape.
For example, a PointListInsertHandle just inserted a point in a polyline. The PointListTranslateHandle uses the update to recalculate new sub-handles, based on the new polyline (with the extra point).
The default implementation does nothing.
An event that is emitted whenever this handle changes the shape of a feature.
EditShape
Handle to delete a single point from a pointlist.
This handle is intended to be used in the composite PointListDeleteHandle.
The default implementation of this handle draws nothing. The user can delete points by holding a modifier key while clicking on a point of the point list. For touch input, the user can delete points by long-pressing a point of the point list.
Since
2022.1