Struct Levers 

pub struct Levers {
    pub pen: f32,
    pub sym: f32,
    pub sharpness: f32,
    pub lobe: f32,
    pub decay: f32,
}

The family-specific levers: each is read by one family and is inert on every other, so none of them can move a rose.

Grouped apart from CurveParams’ shared fields so a caller that does not draw the family reading one can take Levers::default and say so.

Fields

pen: f32

Hypotrochoid: the pen’s distance from the rolling circle’s centre, in rolling radii — 1 traces the cusped cycloid, below it the curtate form, above it the prolate form with loops.

sym: f32

Superformula: the symmetry number m, a whole count of lobes.

sharpness: f32

Superformula: n1, the outer exponent — low draws a pointed star, high rounds the figure toward a circle.

lobe: f32

Superformula: n2, and n3 before d skews it — how the lobes swell.

decay: f32

Harmonograph: the pendulums’ damping, per radian of t — the amplitude at t is exp(-decay * t).

Trait Implementations

impl Clone for Levers

fn clone(&self) -> Levers

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Levers

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Levers

fn default() -> Self

Each lever at the default its ParamSpec declares.

impl PartialEq for Levers

fn eq(&self, other: &Levers) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Levers

impl StructuralPartialEq for Levers