SpringDescription class Null safety
Structure that describes a spring's constants.
Used to configure a SpringSimulation.
Constructors
- SpringDescription({required double mass, required double stiffness, required double damping})
-
Creates a spring given the mass, stiffness, and the damping coefficient.
const
- SpringDescription.withDampingRatio({required double mass, required double stiffness, double ratio = 1.0})
- Creates a spring given the mass (m), stiffness (k), and damping ratio (ζ). The damping ratio is especially useful trying to determining the type of spring to create. A ratio of 1.0 creates a critically damped spring, > 1.0 creates an overdamped spring and < 1.0 an underdamped one.
Properties
- damping → double
-
The damping coefficient (c).
final
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- mass → double
-
The mass of the spring (m). The units are arbitrary, but all springs
within a system should use the same mass units.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- stiffness → double
-
The spring constant (k). The units of stiffness are M/T², where M is the
mass unit used for the value of the mass property, and T is the time
unit used for driving the SpringSimulation.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited