Enum Pinching4State 

pub enum Pinching4State {
    NearOrigin,
    Positive,
    Negative,
    Trilinear3,
    Trilinear4,
}

Pinching4Material’s Cstate/Tstate — an int 0..4 in the OpenSees source, modelled here as a real enum.

Unlike every other material in this catalog, this is not a positive/negative/interior split:

• NearOrigin (0) — before the first real excursion in either direction, i.e. still inside the tiny synthesized near-origin bracket [-u, +u] that SetEnvelope builds.
• Positive (1) — riding the positive (damaged) envelope.
• Negative (2) — riding the negative (damaged) envelope.
• Trilinear3 (3) — the pinched trilinear path connecting a negative excursion back toward (not necessarily reaching) the positive side.
• Trilinear4 (4) — the mirror image: a positive excursion heading back toward the negative side.

Variants

NearOrigin

Positive

Negative

Trilinear3

Trilinear4

Trait Implementations

impl Clone for Pinching4State

fn clone(&self) -> Pinching4State

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pinching4State

impl Debug for Pinching4State

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

Formats the value using the given formatter.

impl Eq for Pinching4State

impl PartialEq for Pinching4State

fn eq(&self, other: &Pinching4State) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Pinching4State