Modal_vis

Description

Functions
	chrono::modal::ChModalEventReceiver< ScalarType >::ChModalEventReceiver (ChModalVisualSystemIrrlicht< ScalarType > *vsys)
virtual bool	chrono::modal::ChModalEventReceiver< ScalarType >::OnEvent (const irr::SEvent &event)
virtual void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::Initialize () override
	Initialize the visualization system.
virtual void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::BeginScene (bool backBuffer, bool zBuffer, ChColor color) override
virtual void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::Render () override
	Render the Irrlicht scene and additional visual elements.
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetMode (int mode)
	Set the mode to be visualized. More...
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::ResetTimer ()
	Reset the timer used to generate the mode shape animation.
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetAmplitude (double amplitude)
	Set the amplitude of the mode shape animation. More...
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetSpeedFactor (double speed_factor)
	Set the speed factor of the mode shape animation. More...
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetFixedFrequency (bool val)
	Fix the frequency of the mode shape animation. More...
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::ResetInitialState ()
	Reset the initial state by retrieving the current state of the assembly.
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::AttachAssembly (const ChAssembly &assembly, const ChMatrixDynamic< ScalarType > &eigvects, const ChVectorDynamic< double > &freq)
	Attach the assembly to be visualized. More...
void	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::UpdateModes (const ChMatrixDynamic< ScalarType > &eigvects, const ChVectorDynamic< double > &freq)
	Update the eigenvectors and frequencies.
template<typename U = ScalarType>
std::enable_if< std::is_same< U, std::complex< double > >::value, void >::type	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::UpdateModes (const ChMatrixDynamic< ScalarType > &eigvects, const ChVectorDynamic< double > &freq, const ChVectorDynamic< double > &damping_ratios)
	Update the eigenvectors, frequencies, and damping ratios.
template<typename U = ScalarType>
std::enable_if< std::is_same< U, double >::value, ChVectorDynamic< double > >::type	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::GetModeShape (const ChVectorDynamic< double > &eigv, double angle)
	Get the mode shape at a specified angle from an eigenvector (real eigvect).
template<typename U = ScalarType>
std::enable_if< std::is_same< U, std::complex< double > >::value, ChVectorDynamic< double > >::type	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::GetModeShape (const ChVectorDynamic< std::complex< double >> &eigv, double angle)
	Get the mode shape at a specified angle from an eigenvector (complex eigvect).

Variables
ChAssembly *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_assembly = nullptr
const ChMatrixDynamic< ScalarType > *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_eigvects = nullptr
const ChVectorDynamic< double > *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_freq = nullptr
const ChVectorDynamic< double > *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_damping_ratios = nullptr
int	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_selected_mode = 0
	currently selected mode
ChTimer	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_timer
	timer for mode shape animation
ChState	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_assembly_initial_state
	initial state of the assembly
double	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_amplitude = 1.0
	amplitude scaling of the mode shape animation
double	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_speed_factor = 1.0
	speed factor of the mode shape animation
bool	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_fixed_frequency = false
	fix the frequency of the animation
irr::gui::IGUIScrollBar *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::g_selected_mode
irr::gui::IGUIStaticText *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::g_selected_mode_info
irr::gui::IGUIEditBox *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::g_amplitude
irr::gui::IGUIEditBox *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::g_speed_factor
irr::gui::IGUICheckBox *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::g_fixed_frequency
ChModalEventReceiver< ScalarType > *	chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::m_receiver

Function Documentation

AttachAssembly()

template<typename ScalarType >

void chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::AttachAssembly	(	const ChAssembly &	assembly,
		const ChMatrixDynamic< ScalarType > &	eigvects,
		const ChVectorDynamic< double > &	freq
	)

Attach the assembly to be visualized.

This function must be called before starting the simulation loop. The eigenvectors and frequencies must be provided, typically through ChModalSolverUndamped or ChModalSolverDamped.

SetAmplitude()

template<typename ScalarType >

void chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetAmplitude

(

double

amplitude

)

Set the amplitude of the mode shape animation.

Eigenvectors are normalized and then multiplied by this amplitude.

SetFixedFrequency()

template<typename ScalarType >

void chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetFixedFrequency

(

bool

val

)

Fix the frequency of the mode shape animation.

The frequency is then fixed to 1 Hz. This is useful to visualize the mode shape without the frequency effect. The speed factor is still applied.

SetMode()

template<typename ScalarType >

void chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetMode

(

int

mode

)

Set the mode to be visualized.

The mode is specified as a 1-based index.

SetSpeedFactor()

template<typename ScalarType >

void chrono::modal::ChModalVisualSystemIrrlicht< ScalarType >::SetSpeedFactor

(

double

speed_factor

)

Set the speed factor of the mode shape animation.

The frequency is multiplied by this factor.