StreamView Class Reference

Visualizes streamlines of a vector PDE solution. More...

#include <stream_view.h>

Inherits View.

Classes
struct	Node
Public Member Functions
	StreamView (const char *title="StreamView", DEFAULT_WINDOW_POS)
virtual	~StreamView ()
void	show (MeshFunction xsln, MeshFunction ysln, int marker, double step, double eps=H2D_EPS_NORMAL)
	Using velocity components (xsln, ysln) it creates streamlines that begin at the boundary with "marker" and the distance between starting points is "step".
void	show (MeshFunction xsln, MeshFunction ysln, int marker, double step, double eps, int xitem, int yitem)
void	add_streamline (double x, double y)
	Creates additional streamline with strarting point (x,y) Note: Can be called only after StreamView::show.
Protected Member Functions
int	find_triangle_in_tree (double x, double y, Node *father, double x_min, double x_max, double y_min, double y_max, double3 &bar)
void	add_element_to_tree (Node *father, int e_idx, double x_min, double x_max, double y_min, double y_max)
void	build_tree ()
void	delete_tree (Node *father)
bool	is_in_triangle (int idx, double x, double y, double3 &bar)
bool	get_solution_values (double x, double y, double &xval, double &yval)
int	create_streamline (double x_start, double y_start, int idx)
void	find_initial_points (int marker, double step, double2 *&initial_points)
int	find_initial_edge (int num_edges, int3 *edges)
virtual void	on_display ()
virtual void	on_mouse_move (int x, int y)
virtual void	on_key_down (unsigned char key, int x, int y)
virtual void	on_left_mouse_down (int x, int y)
virtual const char *	get_help_text () const
Protected Attributes
Vectorizer	vec
double	max_mag
bool	lines
bool	pmode
double	initial_tau
double	min_tau
double	max_tau
int	num_stream
double2 **	streamlines
int *	streamlength
Node *	root
double	root_x_min
double	root_x_max
double	root_y_min
double	root_y_max

Detailed Description

Visualizes streamlines of a vector PDE solution.

StreamView is a visualization window for all vector-valued PDE solutions (especially for flow problems).

Constructor & Destructor Documentation

StreamView::StreamView	(	const char *	title = `"StreamView"`,
		DEFAULT_WINDOW_POS
	)

StreamView::~StreamView ( ) [virtual]

Member Function Documentation

void StreamView::add_element_to_tree	(	Node *	father,
		int	e_idx,
		double	x_min,
		double	x_max,
		double	y_min,
		double	y_max
	)			`[protected]`

void StreamView::add_streamline	(	double	x,
		double	y
	)

Creates additional streamline with strarting point (x,y) Note: Can be called only after StreamView::show.

void StreamView::build_tree ( ) [protected]

int StreamView::create_streamline	(	double	x_start,
		double	y_start,
		int	idx
	)			`[protected]`

void StreamView::delete_tree ( Node * father ) [protected]

int StreamView::find_initial_edge	(	int	num_edges,
		int3 *	edges
	)			`[protected]`

void StreamView::find_initial_points	(	int	marker,
		double	step,
		double2 *&	initial_points
	)			`[protected]`

int StreamView::find_triangle_in_tree	(	double	x,
		double	y,
		Node *	father,
		double	x_min,
		double	x_max,
		double	y_min,
		double	y_max,
		double3 &	bar
	)			`[protected]`

const char * StreamView::get_help_text ( ) const [protected, virtual]

Reimplemented from View.

bool StreamView::get_solution_values	(	double	x,
		double	y,
		double &	xval,
		double &	yval
	)			`[protected]`

bool StreamView::is_in_triangle	(	int	idx,
		double	x,
		double	y,
		double3 &	bar
	)			`[protected]`

void StreamView::on_display ( ) [protected, virtual]

Implements View.

void StreamView::on_key_down	(	unsigned char	key,
		int	x,
		int	y
	)			`[protected, virtual]`

Reimplemented from View.

void StreamView::on_left_mouse_down	(	int	x,
		int	y
	)			`[protected, virtual]`

Reimplemented from View.

void StreamView::on_mouse_move	(	int	x,
		int	y
	)			`[protected, virtual]`

Reimplemented from View.

void StreamView::show	(	MeshFunction *	xsln,
		MeshFunction *	ysln,
		int	marker,
		double	step,
		double	eps,
		int	xitem,
		int	yitem
	)

void StreamView::show	(	MeshFunction *	xsln,
		MeshFunction *	ysln,
		int	marker,
		double	step,
		double	eps = `H2D_EPS_NORMAL`
	)

Using velocity components (xsln, ysln) it creates streamlines that begin at the boundary with "marker" and the distance between starting points is "step".