OpenTissue::psys::PressureSoftBody< types > Class Template Reference

#include <psys_pressure_softbody.h>

List of all members.

Public Types
typedef types::math_types	math_types
typedef math_types::real_type	real_type
typedef math_types::vector3_type	vector3_type
typedef types::coupling_type	coupling_type
typedef types::mesh_type	mesh_type
typedef mesh_type::face_type	face_type
typedef mesh_type::face_iterator	face_iterator
typedef mesh_type::face_vertex_circulator	face_vertex_circulator
Public Member Functions
	PressureSoftBody ()
virtual	~PressureSoftBody ()
void	init (coupling_type const &coupling)
void	set_initial_pressure (real_type const &pressure)
real_type const &	initial_pressure () const
void	apply ()
Protected Types
enum	{ m_X = 0, m_Y = 1, m_Z = 2 }
Protected Member Functions
real_type const	compute_volume_integral (mesh_type &mesh)
void	compute_face_integral (face_type &f, vector3_type &n, const real_type &d)
void	compute_projection_integral (face_type &f)
Protected Attributes
coupling_type *	m_coupling
	A pointer to a mesh coupling.
real_type	m_P1
	Internal variables used by volume computation.
real_type	m_Pa
real_type	m_Pb
real_type	m_Fa
	Internal variables used by volume computation.
real_type	m_Fb
real_type	m_Fc
int	m_A
	Internal variables used by volume computation.
int	m_B
int	m_C
std::vector< real_type >	m_area
	Storage for keeping the computed face areas.
std::vector< real_type >	m_d
	Storage for keeping the distance of face planes from origo.
std::vector< vector3_type >	m_normal
	Storage for keepin the computed face normals.
real_type	m_initial_pressure_inside
	Initial pressure inside.
real_type	m_initial_volume
	Initial volume.
real_type	m_nRT
	This values if computed from the initial pressure and value, by using P V = n R T.

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Detailed Description

template<typename types>
class OpenTissue::psys::PressureSoftBody< types >

Adds a internal pressure force to a closed object.

Note that the surrounds is seen as having zero-pressure. Thus unless one applies some elastic surface forces to the object then the object will keep on expanding its volume until the internal pressure have become zero. In general this is not what one wants, therefore soft-springs should be added to the object to counter the internal pressure. Further hard-stick constraints often do not create a nice soft-blobby effect when combined with the pressure force. We recommend using soft-spring forces instead although this have a dramatic impact on the time-step size.

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Member Typedef Documentation

template<typename types >

typedef types::coupling_type OpenTissue::psys::PressureSoftBody< types >::coupling_type

template<typename types >

typedef mesh_type::face_iterator OpenTissue::psys::PressureSoftBody< types >::face_iterator

template<typename types >

typedef mesh_type::face_type OpenTissue::psys::PressureSoftBody< types >::face_type

template<typename types >

typedef mesh_type::face_vertex_circulator OpenTissue::psys::PressureSoftBody< types >::face_vertex_circulator

template<typename types >

typedef types::math_types OpenTissue::psys::PressureSoftBody< types >::math_types

template<typename types >

typedef types::mesh_type OpenTissue::psys::PressureSoftBody< types >::mesh_type

template<typename types >

typedef math_types::real_type OpenTissue::psys::PressureSoftBody< types >::real_type

template<typename types >

typedef math_types::vector3_type OpenTissue::psys::PressureSoftBody< types >::vector3_type

---

Member Enumeration Documentation

template<typename types >

anonymous enum [protected]

Enumerator:

m_X	Internal variables used by volume computation.
m_Y
m_Z

---

Constructor & Destructor Documentation

template<typename types >

OpenTissue::psys::PressureSoftBody< types >::PressureSoftBody

(

)

[inline]

template<typename types >

virtual OpenTissue::psys::PressureSoftBody< types >::~PressureSoftBody

(

)

[inline, virtual]

---

Member Function Documentation

template<typename types >

void OpenTissue::psys::PressureSoftBody< types >::apply

(

)

[inline]

template<typename types >

void OpenTissue::psys::PressureSoftBody< types >::compute_face_integral	(	face_type &	f,
		vector3_type &	n,
		const real_type &	d
	)			[inline, protected]

template<typename types >

void OpenTissue::psys::PressureSoftBody< types >::compute_projection_integral

(

face_type &

f

)

[inline, protected]

template<typename types >

real_type const OpenTissue::psys::PressureSoftBody< types >::compute_volume_integral

(

mesh_type &

mesh

)

[inline, protected]

template<typename types >

void OpenTissue::psys::PressureSoftBody< types >::init

(

coupling_type const &

coupling

)

[inline]

template<typename types >

real_type const& OpenTissue::psys::PressureSoftBody< types >::initial_pressure

(

)

const [inline]

template<typename types >

void OpenTissue::psys::PressureSoftBody< types >::set_initial_pressure

(

real_type const &

pressure

)

[inline]

---

Member Data Documentation

template<typename types >

int OpenTissue::psys::PressureSoftBody< types >::m_A [protected]

Internal variables used by volume computation.

template<typename types >

std::vector<real_type> OpenTissue::psys::PressureSoftBody< types >::m_area [protected]

Storage for keeping the computed face areas.

template<typename types >

int OpenTissue::psys::PressureSoftBody< types >::m_B [protected]

template<typename types >

int OpenTissue::psys::PressureSoftBody< types >::m_C [protected]

template<typename types >

coupling_type* OpenTissue::psys::PressureSoftBody< types >::m_coupling [protected]

A pointer to a mesh coupling.

template<typename types >

std::vector<real_type> OpenTissue::psys::PressureSoftBody< types >::m_d [protected]

Storage for keeping the distance of face planes from origo.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_Fa [protected]

Internal variables used by volume computation.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_Fb [protected]

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_Fc [protected]

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_initial_pressure_inside [protected]

Initial pressure inside.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_initial_volume [protected]

Initial volume.

template<typename types >

std::vector<vector3_type> OpenTissue::psys::PressureSoftBody< types >::m_normal [protected]

Storage for keepin the computed face normals.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_nRT [protected]

This values if computed from the initial pressure and value, by using P V = n R T.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_P1 [protected]

Internal variables used by volume computation.

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_Pa [protected]

template<typename types >

real_type OpenTissue::psys::PressureSoftBody< types >::m_Pb [protected]

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The documentation for this class was generated from the following file:

• /home/hauberg/Dokumenter/Capture/humim-tracker-0.1/src/OpenTissue/OpenTissue/dynamics/psys/forces/psys_pressure_softbody.h