Node<T> class

A class representing a node in a graph, holding a reference to arbitrary data of type T.

It also holds information needed to play its role in the context of a force directed graph, like position in the 2D space as a Vector2, the mass as a double.

Internally if also holds the _force acting on the Node, the current _velocity and whether the Node is fixed in place.

Node instances are referenced by Edge instances to implement the concept of a graph.

Furthermore Node instances are referenced by KDNode instances to allow their information to be used in the KDTree implementation.

Constructors

Node(T data, [Vector2? position])

Construct a Node instance from a given data of type T.

Properties

data → T

final

hashCode → int

The hash code for this object.

no setter, override

mass ↔ double

getter/setter pair

position ↔ Vector2

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

applyForce(Vector2 force) → void

Adds a force to the current force acting on the Node.

calculateRepulsionForce(Node other, {required double k}) → Vector2

Calculate the repulsive force following Coulomb's law.

connect(Node other) → Edge

Connects the current Node with the other Node by creating (and returning) an Edge

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

static() → void

toString() → String

Returns a string representation of the Node instance, including the data, the position, the _force and the _velocity.

override

unStatic() → void

updatePosition({required double scaling, required double minVelocity, required double maxStaticFriction, required double damping}) → bool

Calculates the displacement within a time step and by that the new position of the Node based on mechanics using the given parameters.

Operators

operator ==(Object other) → bool

Implements equality based on if the other is a Node and the data is equal.

override