Struct Compose 

pub struct Compose<T1, T2> {
    pub t1: T1,
    pub t2: T2,
}

A struct represengint the composition of two transforms.

Specifically, this struct is designed such that t1.compose(t2) will yield the mapping t2.to_external(t1.to_external(z)), so this composition starts with internal coordinates, conducts the t1 transform, and then conducts the t2 transform.

Fields

t1: T1

The first transform in the composition.

t2: T2

The second transform in the composition.

Trait Implementations

impl<T1: Clone, T2: Clone> Clone for Compose<T1, T2>

fn clone(&self) -> Compose<T1, T2>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T1, T2> Transform for Compose<T1, T2>

where T1: Transform + Clone, T2: Transform + Clone,

fn to_external<'a>(&'a self, z: &'a DVector<Float>) -> Cow<'a, DVector<Float>>

Map from internal to external coordinates.

fn to_internal<'a>(&'a self, x: &'a DVector<Float>) -> Cow<'a, DVector<Float>>

Map from external to internal coordinates.

fn to_external_jacobian(&self, z: &DVector<Float>) -> DMatrix<Float>

The Jacobian of the map from internal to external coordinates.

fn to_external_component_hessian( &self, a: usize, z: &DVector<Float>, ) -> DMatrix<Float>

The Hessian of the map from internal to external coordinates for the ath coordinate.

fn to_internal_jacobian(&self, x: &DVector<Float>) -> DMatrix<Float>

The Jacobian of the map from external to internal coordinates.

fn to_internal_component_hessian( &self, b: usize, x: &DVector<Float>, ) -> DMatrix<Float>

The Hessian of the map from external to internal coordinates for the bth coordinate.

fn to_owned_external(&self, z: &DVector<Float>) -> DVector<Float>

Map from internal to external coordinates, returning an owned vector.

fn to_owned_internal(&self, x: &DVector<Float>) -> DVector<Float>

Map from external to internal coordinates, returning an owned vector.

fn pullback_gradient( &self, z: &DVector<Float>, g_ext: &DVector<Float>, ) -> DVector<Float>

The gradient on the internal space given an internal coordinate z and the external gradient g_ext.

fn pullback_hessian( &self, z: &DVector<Float>, g_ext: &DVector<Float>, h_ext: &DMatrix<Float>, ) -> DMatrix<Float>

The Hessian on the internal space given an internal coordinate z, the external gradient g_ext, and the external Hessian h_ext.

fn pushforward_gradient( &self, z: &DVector<Float>, g_int: &DVector<Float>, ) -> DVector<Float>

The gradient on the external space given an internal coordinate z and the internal gradient g_int.

fn pushforward_hessian( &self, z: &DVector<Float>, g_int: &DVector<Float>, h_int: &DMatrix<Float>, ) -> DMatrix<Float>

The Hessian on the external space given an internal coordinate z, the internal gradient g_int, and the internal Hessian h_int.