GAS_ParticleForces Class Reference

#include <GAS_ParticleForces.h>

Inheritance diagram for GAS_ParticleForces:

List of all members.

Public Member Functions
	GET_DATA_FUNC_S (GAS_NAME_GEOMETRY, GeometryName)
	GET_DATA_FUNC_B ("dopressure", DoPressure)
	GET_DATA_FUNC_B ("computev", ComputeVelocity)
	GET_DATA_FUNC_B ("docollision", DoCollisions)
	GET_DATA_FUNC_B ("usesdfvelocity", UseSDFVelocity)
	GET_DATA_FUNC_B ("usegeovelocity", UseGEOVelocity)
	GET_DATA_FUNC_F ("poissonratio", PoissonRatio)
	GET_DATA_FUNC_F ("elasticrepulsion", ElasticRepulsion)
	GET_DATA_FUNC_F ("repulsionstrength", RepulsionStrength)
	GET_DATA_FUNC_F ("viscousdampening", ViscousDampening)
	GET_DATA_FUNC_F ("dampeningstrength", DampeningStrength)
	GET_DATA_FUNC_F ("contactresistance", ContactResistance)
	GET_DATA_FUNC_F ("contactdampening", ContactDampening)
	GET_DATA_FUNC_F ("rollingfriction", RollingFriction)
	GET_DATA_FUNC_F ("objrollingfriction", ObjRollingFriction)
	GET_DATA_FUNC_F ("objimpulseduration", ObjImpulseDuration)
	GET_DATA_FUNC_F ("objtranslationimpulsefactor", ObjTranslationImpulseFactor)
	GET_DATA_FUNC_F ("objrollingimpulsefactor", ObjRollingImpulseFactor)
	GET_DATA_FUNC_F ("minbounce", MinBounce)
bool	shouldMultiThread ()
Protected Member Functions
	GAS_ParticleForces (const SIM_DataFactory *factory)
virtual	~GAS_ParticleForces ()
virtual bool	solveGasSubclass (SIM_Engine &engine, SIM_Object *obj, SIM_Time time, SIM_Time timestep)
virtual bool	postSolveGasSubclass (SIM_Engine &engine, SIM_Object *obj, SIM_Time time, SIM_Time timestep)
void	calcForces (SIM_Engine &engine, SIM_Object *obj, GU_Detail *gdp, const UT_RefArray< GAS_GrainObject > &grains, SIM_Time time, SIM_Time timestep)
void	updateContactDisplacement (SIM_Object *obj, GU_Detail *gdp, const UT_RefArray< GAS_GrainObject > &grains, SIM_Time timestep)
UT_Vector3	computeRepulsiveForce (const UT_Vector3 &p, fpreal overlap, const UT_Vector3 &nml, const UT_Vector3 &relvel, fpreal R, fpreal mass, fpreal beta, fpreal kr, fpreal alpha, fpreal kd, fpreal nu, fpreal bounce, fpreal mu_s, fpreal mu_d, fpreal dt) const
UT_Vector3	computeRepulsiveForcePP (const UT_Vector3 &p, fpreal overlap, const UT_Vector3 &nml, const UT_Vector3 &relvel, fpreal R, fpreal pmass, fpreal beta, fpreal kr, fpreal alpha, fpreal kd, fpreal nu, fpreal gamma, fpreal bounce, fpreal mu_s, fpreal mu_d, fpreal kc, SIM_Time timestep, UT_Vector3 &shearD) const
UT_Vector3	computeRepulsiveTorque (const UT_Vector3 &z, const UT_Vector3 &c1, const UT_Vector3 &force, const UT_Vector3 &nml, const UT_Vector3 &angvel, fpreal pscale, fpreal pmass, fpreal mu_r) const
UT_Vector3	getContactDisplacement (GEO_AttributeHandle &cg_gah, GEO_AttributeHandle &csj_gah, GEO_AttributeHandle &csk_gah, GEO_AttributeHandle &cd_gah, int cs1, int cg2, int cs2) const
void	setContactDisplacement (GEO_AttributeHandle &cg_gah, GEO_AttributeHandle &csj_gah, GEO_AttributeHandle &csk_gah, GEO_AttributeHandle &cd_gah, vector< int > cg, vector< int > csj, vector< int > csk, vector< UT_Vector3 > sd) const
int	adjustContactDisplacement (SIM_Object *obj, GU_Detail *gdp, const UT_RefArray< GAS_GrainObject > &grains, SIM_Time timestep)
void	resizeContactGrainAttributes (GU_Detail *gdp, int initialsize, int finalsize) const
void	applyStiction (UT_Vector3 &totalforce, UT_Vector3 &totaltorque, const UT_Vector3 v1, const UT_Vector3 w1, const UT_Vector3 c1, const UT_Vector3 N, fpreal pscale, fpreal pmass, fpreal kv, fpreal kw, fpreal dt)
void	createGrainObjects (SIM_Object *obj, GU_Detail *gdp, UT_RefArray< GAS_GrainObject > &grains)
UT_HashGrid< const GAS_GrainSphere * > *	buildHashGrid (const UT_RefArray< GAS_GrainObject > &grains)

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Detailed Description

Definition at line 38 of file GAS_ParticleForces.h.

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Constructor & Destructor Documentation

GAS_ParticleForces::GAS_ParticleForces

(

const SIM_DataFactory *

factory

)

[explicit, protected]

virtual GAS_ParticleForces::~GAS_ParticleForces

(

)

[protected, virtual]

---

Member Function Documentation

int GAS_ParticleForces::adjustContactDisplacement	(	SIM_Object *	obj,
		GU_Detail *	gdp,
		const UT_RefArray< GAS_GrainObject > &	grains,
		SIM_Time	timestep
	)			[protected]

void GAS_ParticleForces::applyStiction	(	UT_Vector3 &	totalforce,
		UT_Vector3 &	totaltorque,
		const UT_Vector3	v1,
		const UT_Vector3	w1,
		const UT_Vector3	c1,
		const UT_Vector3	N,
		fpreal	pscale,
		fpreal	pmass,
		fpreal	kv,
		fpreal	kw,
		fpreal	dt
	)			[protected]

UT_HashGrid<const GAS_GrainSphere *>* GAS_ParticleForces::buildHashGrid

(

const UT_RefArray< GAS_GrainObject > &

grains

)

[protected]

void GAS_ParticleForces::calcForces	(	SIM_Engine &	engine,
		SIM_Object *	obj,
		GU_Detail *	gdp,
		const UT_RefArray< GAS_GrainObject > &	grains,
		SIM_Time	time,
		SIM_Time	timestep
	)			[protected]

UT_Vector3 GAS_ParticleForces::computeRepulsiveForce	(	const UT_Vector3 &	p,
		fpreal	overlap,
		const UT_Vector3 &	nml,
		const UT_Vector3 &	relvel,
		fpreal	R,
		fpreal	mass,
		fpreal	beta,
		fpreal	kr,
		fpreal	alpha,
		fpreal	kd,
		fpreal	nu,
		fpreal	bounce,
		fpreal	mu_s,
		fpreal	mu_d,
		fpreal	dt
	)			const [protected]

Compute the repulsive force between two particles. p is the point of impact, nml the normalized normal of the impact and relvel the relative velocity at the point of impact.

UT_Vector3 GAS_ParticleForces::computeRepulsiveForcePP	(	const UT_Vector3 &	p,
		fpreal	overlap,
		const UT_Vector3 &	nml,
		const UT_Vector3 &	relvel,
		fpreal	R,
		fpreal	pmass,
		fpreal	beta,
		fpreal	kr,
		fpreal	alpha,
		fpreal	kd,
		fpreal	nu,
		fpreal	gamma,
		fpreal	bounce,
		fpreal	mu_s,
		fpreal	mu_d,
		fpreal	kc,
		SIM_Time	timestep,
		UT_Vector3 &	shearD
	)			const [protected]

UT_Vector3 GAS_ParticleForces::computeRepulsiveTorque	(	const UT_Vector3 &	z,
		const UT_Vector3 &	c1,
		const UT_Vector3 &	force,
		const UT_Vector3 &	nml,
		const UT_Vector3 &	angvel,
		fpreal	pscale,
		fpreal	pmass,
		fpreal	mu_r
	)			const [protected]

void GAS_ParticleForces::createGrainObjects	(	SIM_Object *	obj,
		GU_Detail *	gdp,
		UT_RefArray< GAS_GrainObject > &	grains
	)			[protected]

GAS_ParticleForces::GET_DATA_FUNC_B	(	"usegeovelocity"	,
		UseGEOVelocity
	)

GAS_ParticleForces::GET_DATA_FUNC_B	(	"usesdfvelocity"	,
		UseSDFVelocity
	)

GAS_ParticleForces::GET_DATA_FUNC_B	(	"docollision"	,
		DoCollisions
	)

GAS_ParticleForces::GET_DATA_FUNC_B	(	"computev"	,
		ComputeVelocity
	)

GAS_ParticleForces::GET_DATA_FUNC_B	(	"dopressure"	,
		DoPressure
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"minbounce"	,
		MinBounce
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"objrollingimpulsefactor"	,
		ObjRollingImpulseFactor
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"objtranslationimpulsefactor"	,
		ObjTranslationImpulseFactor
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"objimpulseduration"	,
		ObjImpulseDuration
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"objrollingfriction"	,
		ObjRollingFriction
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"rollingfriction"	,
		RollingFriction
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"contactdampening"	,
		ContactDampening
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"contactresistance"	,
		ContactResistance
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"dampeningstrength"	,
		DampeningStrength
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"viscousdampening"	,
		ViscousDampening
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"repulsionstrength"	,
		RepulsionStrength
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"elasticrepulsion"	,
		ElasticRepulsion
	)

GAS_ParticleForces::GET_DATA_FUNC_F	(	"poissonratio"	,
		PoissonRatio
	)

GAS_ParticleForces::GET_DATA_FUNC_S	(	GAS_NAME_GEOMETRY	,
		GeometryName
	)

UT_Vector3 GAS_ParticleForces::getContactDisplacement	(	GEO_AttributeHandle &	cg_gah,
		GEO_AttributeHandle &	csj_gah,
		GEO_AttributeHandle &	csk_gah,
		GEO_AttributeHandle &	cd_gah,
		int	cs1,
		int	cg2,
		int	cs2
	)			const [protected]

virtual bool GAS_ParticleForces::postSolveGasSubclass	(	SIM_Engine &	engine,
		SIM_Object *	obj,
		SIM_Time	time,
		SIM_Time	timestep
	)			[protected, virtual]

Reimplemented from GAS_SubSolver.

void GAS_ParticleForces::resizeContactGrainAttributes	(	GU_Detail *	gdp,
		int	initialsize,
		int	finalsize
	)			const [protected]

void GAS_ParticleForces::setContactDisplacement	(	GEO_AttributeHandle &	cg_gah,
		GEO_AttributeHandle &	csj_gah,
		GEO_AttributeHandle &	csk_gah,
		GEO_AttributeHandle &	cd_gah,
		vector< int >	cg,
		vector< int >	csj,
		vector< int >	csk,
		vector< UT_Vector3 >	sd
	)			const [protected]

bool GAS_ParticleForces::shouldMultiThread

(

)

[inline]

Definition at line 63 of file GAS_ParticleForces.h.

virtual bool GAS_ParticleForces::solveGasSubclass	(	SIM_Engine &	engine,
		SIM_Object *	obj,
		SIM_Time	time,
		SIM_Time	timestep
	)			[protected, virtual]

Computes a pressure force for the given particle field and either adjusts the velocity directly, or just adds to the force variable.

Implements GAS_SubSolver.

void GAS_ParticleForces::updateContactDisplacement	(	SIM_Object *	obj,
		GU_Detail *	gdp,
		const UT_RefArray< GAS_GrainObject > &	grains,
		SIM_Time	timestep
	)			[protected]

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

• GAS/GAS_ParticleForces.h