FocalPoint class

The FocalPoint class defines a screen point to align a marker on the map during a focus event. It uses a combination of a normalized coordinate ratio and a pixel offset to determine the marker's final position on the map widget.

Constructors

FocalPoint.new({Offset ratio = Offset.zero, Offset offset = Offset.zero})
Constructs a FocalPoint with an optional ratio and offset, both defaulting to the origin point if not provided.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
offset → Offset
The pixel-based offset is applied after the ratio calculation to fine-tune the marker's position. This allows for precise adjustments to the marker's screen location, accommodating for elements such as map controls or overlays that may otherwise obscure the marker.
final
ratio → Offset
The normalized coordinate ratio for aligning the marker within the map widget. This point follows a normalized coordinate system where:
final
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
project(Size size) → Offset
Projects the FocalPoint onto the map widget given its size. The resulting Offset represents the absolute pixel coordinates on the map widget where the marker should be aligned.
toString() → String
A string representation of this object.
inherited

Operators

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