GraphicsOverlayFenceParameters class final

Geotrigger fence parameters data created from a GraphicsOverlay.

The GraphicsOverlay used to create a GraphicsOverlayFenceParameters provides a dynamic set of graphics that define targets for a FenceGeotrigger condition. For example, if the condition is "notify me when my position comes within 50 meters of one of my target areas", "my target areas" are the graphics in the overlay. Changes to the GraphicsOverlay will be reflected in the fences tracked by the Geotrigger.

A GraphicsOverlayFenceParameters allows you to track all of the graphics displayed on the GeoViewController in a GraphicsOverlay. This allows you to track new target areas as they are added to the view and to stop tracking areas that are removed. If you wish to track a subset of the graphics displayed in a GraphicsOverlay, or graphics which are not displayed in a GeoViewController, use a GraphicFenceParameters.

The graphics can have point, line, or polygon geometry. A FenceParameters.bufferDistance must be supplied for points or lines.

Inheritance

Constructors

GraphicsOverlayFenceParameters({required GraphicsOverlay graphicsOverlay, double bufferDistance = 0})
Creates a GraphicsOverlayFenceParameters using all of the graphics in the GraphicsOverlay buffered by the buffer distance.
factory

Properties

bufferDistance → double
A buffer distance in meters to apply when checking if a FenceGeotrigger condition is met.
no setterinherited
graphicsOverlay → GraphicsOverlay
The GraphicsOverlay to use in the GraphicsOverlayFenceParameters.
no setter
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited