FrictionSimulation class
A simulation that applies a drag to slow a particle down.
Models a particle affected by fluid drag, e.g. air resistance.
The simulation ends when the velocity of the particle drops to zero (within the current velocity tolerance).
- Inheritance
-
- Object
- Simulation
- FrictionSimulation
- Implementers
Constructors
- FrictionSimulation(double drag, double position, double velocity, {Tolerance tolerance = Tolerance.defaultTolerance, double constantDeceleration = 0})
- Creates a FrictionSimulation with the given arguments, namely: the fluid drag coefficient cₓ, a unitless value; the initial position x₀, in the same length units as used for x; and the initial velocity dx₀, in the same velocity units as used for dx.
- FrictionSimulation.through(double startPosition, double endPosition, double startVelocity, double endVelocity)
-
Creates a new friction simulation with its fluid drag coefficient (cₓ) set so
as to ensure that the simulation starts and ends at the specified
positions and velocities.
factory
Properties
- finalX → double
-
The value of x at
double.infinity
.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
- tolerance ↔ Tolerance
-
How close to the actual end of the simulation a value at a particular time
must be before isDone considers the simulation to be "done".
getter/setter pairinherited
Methods
-
dx(
double time) → double -
The velocity of the object in the simulation at the given time.
override
-
isDone(
double time) → bool -
Whether the simulation is "done" at the given time.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
timeAtX(
double x) → double -
The time at which the value of
x(time)
will equalx
. -
toString(
) → String -
A string representation of this object.
override
-
x(
double time) → double -
The position of the object in the simulation at the given time.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited