Visualizes a Scalar PDE solution. More...

#include <scalar_view.h>

Inheritance diagram for Hermes::Hermes2D::Views::ScalarView:

Classes
struct	ElementInfo
	< element info structure More...

struct	GLVertex2
	< OpenGL vertex. Used to cache vertices prior rendering More...

Public Member Functions
void	init ()

	ScalarView (const char title="ScalarView", WinGeom wg=nullptr)

	ScalarView (char title, WinGeom wg=nullptr)

void	show (MeshFunctionSharedPtr< double > sln, int item=H2D_FN_VAL_0, MeshFunctionSharedPtr< double > xdisp=nullptr, MeshFunctionSharedPtr< double > ydisp=nullptr, double dmult=1.0)

void	show (MeshFunctionSharedPtr< std::complex< double > > sln, int item=H2D_FN_VAL_0, MeshFunctionSharedPtr< double > xdisp=nullptr, MeshFunctionSharedPtr< double > ydisp=nullptr, double dmult=1.0)

void	show_linearizer_data (double eps, int item=H2D_FN_VAL_0)

void	show_mesh (bool show=true)

void	show_bounding_box (bool show=true)

void	show_contours (double step, double orig=0.0)

void	hide_contours ()

void	set_3d_mode (bool enable=true)

void	set_vertical_scaling (double sc)
	Sets the scaling on the vertical axis programmatically.

void	set_min_max_range (double min, double max)
	Sets the limits on displayed values. More...

virtual void	reset_view (bool force_reset)
	Resets 2d and 3d view. More...

Linearizer *	get_linearizer ()
	Returns the internal linearizer for the purpose of parameter settings.

void	set_linearizer_criterion (LinearizerCriterion criterion)

Public Member Functions inherited from Hermes::Hermes2D::Views::View
void	init ()

	View (const char title, WinGeom wg=nullptr)

	View (char title, WinGeom wg=nullptr)

int	create ()

void	close ()

void	refresh ()
	Refreshes views.

const char *	get_title () const
	Returns the title.

void	set_title (const char *msg,...)
	Changes the window name (in its title-bar) to 'title'.

void	set_min_max_range (double min, double max)

void	auto_min_max_range ()

void	get_min_max_range (double &min, double &max)

void	show_scale (bool show=true)

void	set_scale_position (int horz, int vert)

void	set_scale_size (int width, int height, int numticks)

void	set_scale_format (const char *fmt)

void	fix_scale_width (int width=80)

void	save_screenshot (const char *bmpname, bool high_quality=false)

void	save_numbered_screenshot (const char *format, int number, bool high_quality=false)

void	set_palette (ViewPaletteType type)

void	set_num_palette_steps (int num)

void	set_palette_filter (bool linear)

void	wait_for_close ()

void	wait_for_draw ()

void	draw_help ()

Protected Types
typedef void(*	DrawSingleEdgeCallback )(int inx_vert_a, int inx_vert_b, ScalarView viewer, void param)
	A callback function that draws edge using specified vertex indices. Param is user supplied parameter.

Protected Member Functions
void	init_element_info (MeshSharedPtr mesh)
	Creates element info from mesh.

void	create_element_info_widgets ()
	Creates element ID widgets if not created already.

void	draw_element_infos_2d ()
	Draws elements infos in 2D mode.

void	prepare_gl_geometry ()
	prepares geometry in a form compatible with GL arrays; Data are updated if lin is updated. In a case of a failure (out of memory), gl_verts is nullptr and an old OpenGL rendering method has to be used.

void	draw_values_2d ()
	draws values

void	draw_edges_2d ()
	draws edges

void	calculate_mesh_aabb (double x_min, double x_max, double y_min, double y_max)
	Calculates AABB from edges.

void	draw_aabb ()
	Draws the axes-aligned bounding box of the model. Assumes a model/view matrix to be the current matrix on the OpenGL stack.

double	calculate_ztrans_to_fit_view ()

virtual void	update_layout ()
	Updates layout, i.e., centers 2d and 3d mesh.

void	draw_tri_contours (ScalarLinearizerDataDimensions< LINEARIZER_DATA_TYPE >::triangle_t &)

void	init_lighting ()

void	update_mesh_info ()
	Updates mesh info. Assumes that data lock is locked.

virtual void	on_display ()

void	on_display_2d ()

void	on_display_3d ()

virtual void	on_key_down (unsigned char key, int x, int y)

virtual void	on_mouse_move (int x, int y)

virtual void	on_right_mouse_down (int x, int y)
	Handles selecting/deselecting of nodes.

virtual void	on_middle_mouse_down (int x, int y)

virtual void	on_middle_mouse_up (int x, int y)

virtual const char *	get_help_text () const

virtual void	on_close ()

Protected Member Functions inherited from Hermes::Hermes2D::Views::View
void	draw_fps ()
	draws current FPS

virtual void	on_create (int output_id)

virtual void	on_reshape (int width, int height)

virtual void	on_left_mouse_down (int x, int y)

virtual void	on_left_mouse_up (int x, int y)

virtual void	on_left_mouse_double_click (int x, int y)

virtual void	on_right_mouse_up (int x, int y)

virtual void	on_right_mouse_double_click (int x, int y)

virtual void	on_middle_mouse_double_click (int x, int y)

virtual void	on_special_key (int key, int x, int y)

virtual void	on_entry (int state)

void	create_gl_palette ()
	Creates pallete texture in OpenGL. Assumes that view_sync is locked.

virtual void	get_palette_color (double x, float *gl_color)
	Fills gl_color with palette color. Assumes that gl_color points to a vector of three components (RGB).

double	untransform_x (double x)

double	untransform_y (double y)

virtual void	clear_background ()
	Clears background.

void	pre_display ()

void	display_antialiased ()

void	set_ortho_projection (bool no_jitter=false)

void	set_3d_projection (int fov, double znear, double zfar)

void	draw_text (double x, double y, const char *text, int align=-1)

int	get_text_width (const char *text)

char *	get_screenshot_file_name ()

void	save_screenshot_internal (const char *filename)

virtual void	scale_dispatch ()

virtual int	measure_scale_labels ()

void	draw_continuous_scale (char *title, bool righttext)

void	draw_discrete_scale (int numboxes, const char *boxnames[], const float boxcolors[][3])

void	update_tex_adjust ()

Protected Attributes
Linearizer *	lin
	LinearizerMultidimensional class responsible for obtaining linearized data.

std::vector< ElementInfo >	element_infos
	Element info.

unsigned int	element_id_widget
	A GL display-list denoting a element ID widget. The geometry assumes the size of a pixel is 1x1.

bool	show_element_info
	true, to draw element info (currently ID) in 2D mode

bool	lin_updated
	true, if lin now contains new_ values

int	max_gl_verts
	A maximum allocated number of vertices.

int	max_gl_tris
	A maximum allocated number of triangles.

int	gl_tri_cnt
	A number of OpenGL triangles.

bool	show_values
	true to show values

bool	show_edges
	true to show edges of mesh

bool	show_aabb
	true to show the bounding box

float	edges_color [3]
	color of edges

bool	contours
	true to enable drawing of contours

double	cont_orig
	contour settings.

double	cont_step

float	cont_color [3]
	color of contours (RGB)

bool	do_zoom_to_fit
	true to automatically translate the view so that the whole model si displayed

bool	is_constant
	true if the function to be displayed is constant

bool	pmode

bool	mode3d

bool	panning

double	xrot

double	yrot

double	xtrans

double	ytrans

double	ztrans

double	xzscale

double	yscale

double	xctr

double	yctr

double	zctr
	Information about the range of vertex values.

double	value_irange

double	value_range_avg

Protected Attributes inherited from Hermes::Hermes2D::Views::View
double	rendering_frames [FPS_FRAME_SIZE]
	time spend in rendering of frames[in ms]

int	rendering_frames_top
	the new_ location of the next FPS

bool	view_not_reset
	True if the view was not reset and therefore it has to be.

double	vertices_min_x
	AABB of shown mesh.

double	vertices_max_x

double	vertices_min_y

double	vertices_max_y

double	scale

double	log_scale

double	trans_x

double	trans_y

double	center_x

double	center_y

int	margin

int	lspace

int	rspace

int	mouse_x

int	mouse_y

int	scx

int	scy

double	objx

double	objy

bool	dragging

bool	scaling

std::string	title

int	output_id

int	output_x

int	output_y

int	output_width

int	output_height

float	jitter_x

float	jitter_y

bool	hq_frame

bool	frame_ready

ViewPaletteType	pal_type

int	pal_steps

int	pal_filter

double	tex_scale

double	tex_shift

bool	range_auto

double	range_min

double	range_max

bool	b_scale

bool	b_help

bool	scale_focused

bool	scale_dragging

int	pos_horz

int	pos_vert

int	scale_x

int	scale_y

int	scale_width

int	scale_height

int	labels_width

int	scale_numticks

int	scale_box_height

int	scale_box_skip

char	scale_fmt [20]

int	scale_fixed_width

bool	want_screenshot

std::string	screenshot_filename

unsigned int	gl_pallete_tex_id
	OpenGL texture object ID.

Static Protected Attributes
static const int	fovy = 50
	Field of view in the vertical direction (in degrees).

static const double	znear = 0.05
	Distance of the near clipping plane of the viewing frustum from the camera.

static const double	zfar = 10
	Distance of the Far clipping plane of the viewing frustum from the camera.

Static Protected Attributes inherited from Hermes::Hermes2D::Views::View
static int	screenshot_no = 1

Additional Inherited Members
Static Public Member Functions inherited from Hermes::Hermes2D::Views::View
static void	wait_for_keypress (const char *text=nullptr)
	Waits for keypress. Deprecated.

static void	wait (const char *text)
	Closes all views at once.

static void	wait (ViewWaitEvent wait_event=HERMES_WAIT_CLOSE, const char *text=nullptr)
	Waits for an event.

Static Protected Member Functions inherited from Hermes::Hermes2D::Views::View
static double	get_tick_count ()
	returns a current time[in ms]

Detailed Description

Visualizes a Scalar PDE solution.

ScalarView is a visualization window for all Scalar-valued PDE solutions.

Definition at line 37 of file scalar_view.h.

Member Function Documentation

double Hermes::Hermes2D::Views::ScalarView::calculate_ztrans_to_fit_view ( )

protected

This function calculates the distance that the model (3D plot of the solution over the whole solution domain) must be translated along the z-axis of the eye coordinate system, so that it fills the actual viewport without being clipped. The only case when the model will be clipped is when the user defines his own vertical range limits - unfortunately, the values beyond these limits are now still included in the displayed model, so the user may e.g. zoom-out to see them

try the benchmark 'screen' for instance... The algorithm essentially performs zooming without changing the field of view of the perspective projection and works as follows:
1. Apply all transformations to the bounding box of the model at the origin.
2. Compute the distance (along z-axis) from the origin to the center of perspective projection of the point with the biggest vertical (y-axis) distance from the origin.
3. Compute the distance (along z-axis) from the origin to the center of perspective projection of the point with the biggest horizontal (x-axis) distance from the origin.
4. Take the bigger of the two distances and reverse sign (since we will translate the model, not the camera) Calculates the z-coordinate (in eye coordinates) of the closest viewpoint from which we can still see the whole model. Assumes a model/view matrix to be the current matrix on the OpenGL stack.

Definition at line 729 of file scalar_view.cpp.

void Hermes::Hermes2D::Views::ScalarView::reset_view ( bool force_reset )

virtual

Resets 2d and 3d view.

Todo:: allow the user to decide whether he always wants equal axes scaling or prefers actually seeing something sensible...

Reimplemented from Hermes::Hermes2D::Views::View.

Definition at line 691 of file scalar_view.cpp.

void Hermes::Hermes2D::Views::ScalarView::set_linearizer_criterion ( LinearizerCriterion criterion )

Sets the criterion to use for the linearization process. This criterion is used in ThreadLinearizerMultidimensional class instances (see threadLinearizerMultidimensional array).

Parameters

[in] criterion The instance of the criterion - see the class LinearizerCriterion for details (method split_decision() for the adaptive criterion, process_[triangle|quad] for the fixed one).

Definition at line 249 of file scalar_view.cpp.

void Hermes::Hermes2D::Views::ScalarView::set_min_max_range	(	double	min,
		double	max
	)

Sets the limits on displayed values.

Todo:: allow setting min = max, in which case draw the corresponding contour.

Definition at line 807 of file scalar_view.cpp.

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

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation