Parameters for the Active Anisotropic ARAP material model. More...

#include <active_aniso_arap_params.h>

Public Member Functions
real	GetPhi () const
	Returns the elevation angle (φ) [rad] from the stored fiber direction.
real	GetTheta () const
	Returns the azimuthal angle (θ) [rad] from the stored fiber direction.
bool	operator== (ActiveAnisoArapMaterialParams const &) const =default

Static Public Member Functions
static constexpr Real3	ComputeFiberDirection (real theta, real phi)
	Computes the fiber direction unit vector from spherical angles.

Public Attributes
real	alpha = kDefaultAnisoAlpha
	Anisotropic stiffness (α) along fiber direction [Pa].
Real3	anisoDir = {1_r, 0_r, 0_r}
	Fiber direction as a unit vector: (cos(φ)cos(θ), sin(φ), cos(φ)sin(θ)).
real	length = kDefaultAnisoLength
	Anisotropic reference length (dimensionless).
MaterialPsdStrategy	psdStrategy = MaterialPsdStrategy::Projection
	Strategy for ensuring positive semi-definite Hessian matrices.

Detailed Description

Parameters for the Active Anisotropic ARAP material model.

Anisotropic energy term that models directional fiber contraction. The fiber direction is specified in spherical coordinates (θ, φ) and internally stored as a unit direction vector.

See also: Anisotropic Elasticity for Inversion-Safety and Element Rehabilitation (Kim et al., 2019)

Definition at line 35 of file active_aniso_arap_params.h.

Member Function Documentation

◆ ComputeFiberDirection()

Real3 superdex::ActiveAnisoArapMaterialParams::ComputeFiberDirection	(	real	theta,
		real	phi )

staticnodiscardconstexpr

Computes the fiber direction unit vector from spherical angles.

Parameters

[in]	theta	Azimuthal angle (θ) [rad].
[in]	phi	Elevation angle (φ) [rad].

Returns: Unit vector: (cos(φ)cos(θ), sin(φ), cos(φ)sin(θ)).

Definition at line 34 of file active_aniso_arap_params_inl.h.

◆ GetPhi()

real superdex::ActiveAnisoArapMaterialParams::GetPhi ( ) const

inlinenodiscard

Returns the elevation angle (φ) [rad] from the stored fiber direction.

See also: ComputeFiberDirection, GetTheta

Definition at line 30 of file active_aniso_arap_params_inl.h.

◆ GetTheta()

real superdex::ActiveAnisoArapMaterialParams::GetTheta ( ) const

inlinenodiscard

Returns the azimuthal angle (θ) [rad] from the stored fiber direction.

See also: ComputeFiberDirection, GetPhi

Definition at line 26 of file active_aniso_arap_params_inl.h.

◆ operator==()

bool superdex::ActiveAnisoArapMaterialParams::operator== ( ActiveAnisoArapMaterialParams const & ) const

default

Member Data Documentation

◆ alpha

real superdex::ActiveAnisoArapMaterialParams::alpha = kDefaultAnisoAlpha

Anisotropic stiffness (α) along fiber direction [Pa].

Note: Must not be negative.

Definition at line 41 of file active_aniso_arap_params.h.

◆ anisoDir

Real3 superdex::ActiveAnisoArapMaterialParams::anisoDir = {1_r, 0_r, 0_r}

Fiber direction as a unit vector: (cos(φ)cos(θ), sin(φ), cos(φ)sin(θ)).

See also: ComputeFiberDirection, GetTheta, GetPhi

Definition at line 55 of file active_aniso_arap_params.h.

◆ length

real superdex::ActiveAnisoArapMaterialParams::length = kDefaultAnisoLength

Anisotropic reference length (dimensionless).

Note: Must not be negative.

Definition at line 48 of file active_aniso_arap_params.h.

◆ psdStrategy

MaterialPsdStrategy superdex::ActiveAnisoArapMaterialParams::psdStrategy = MaterialPsdStrategy::Projection

Strategy for ensuring positive semi-definite Hessian matrices.

See also: MaterialPsdStrategy

Definition at line 62 of file active_aniso_arap_params.h.

The documentation for this struct was generated from the following files:

Public Member Functions

Static Public Member Functions

Public Attributes