Renderer of the 2D landmark graph. More...

#include <graph_renderer.h>

Collaboration diagram for GraphRenderer:

Public Member Functions
	GraphRenderer ()

void	init ()

void	draw (const View &v, const LandmarkModel &m, const ColorData &colors)
	Draw event of the 2D landmark graph. More...

bool	is_vert_pressed (const View &view, glm::vec2 mouse)
	Checks if some vertex was pressed. More...

Public Attributes
bool	vert_pressed
	Flag indicating if a vertex was pressed. More...

size_t	vert_ind
	Index of the pressed vertex. More...

Private Member Functions
void	prepare_data (float current_zoom, const LandmarkModel &model, const ColorData &colors)
	Prepare data to render vertices and edges. More...

void	prepare_vertices (float current_zoom, const LandmarkModel &model, const ColorData &colors)
	Prepare graph vertices that are rendered as circles. More...

void	prepare_edges (const LandmarkModel &model)
	Prepare graph edges that are rendered as lines. More...

void	add_circle (float middle_x, float middle_y, float zoom, std::vector< float > &all_vtxs, std::vector< float > &vtxs_outlines, std::vector< glm::vec3 > &all_colors, const glm::vec3 &color)
	Add vertices for TRIANGLE_FAN that creates circle at given position. More...

Private Attributes
std::vector< glm::vec2 >	vertices
	Cached screen coordinates of the vertices. More...

int	num_all_vtxs
	Number of all vertices for rendering circles(graph vertices). More...

Shader	shader_v

unsigned int	VAO_v

unsigned int	VBO_v_pos

unsigned int	VBO_v_col

int	num_all_vtxs_outlines

Shader	shader_v_outline

unsigned int	VAO_v_outline

unsigned int	VBO_v_pos_outline

Shader	shader_e

unsigned int	VAO_e

unsigned int	VBO_e

Static Private Attributes
static constexpr float	vertex_size = 5.0f
	Radius of the vertex used for comparing, if the landmark was pressed. More...

Detailed Description

Renderer of the 2D landmark graph.

Definition at line 37 of file graph_renderer.h.

Constructor & Destructor Documentation

◆ GraphRenderer()

GraphRenderer::GraphRenderer ( )

Definition at line 29 of file graph_renderer.cpp.

Member Function Documentation

◆ add_circle()

void GraphRenderer::add_circle	(	float	middle_x,
		float	middle_y,
		float	zoom,
		std::vector< float > &	all_vtxs,
		std::vector< float > &	vtxs_outlines,
		std::vector< glm::vec3 > &	all_colors,
		const glm::vec3 &	color
	)

private

Add vertices for TRIANGLE_FAN that creates circle at given position.

Parameters

middle_x	x position of the middle of the circle.
middle_y	y position of the middle of the circle.
zoom	Current zoom level used to adjust the size of the circle.
all_vtxs	Storage of the vertices that will be filled.

Definition at line 126 of file graph_renderer.cpp.

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◆ draw()

void GraphRenderer::draw	(	const View &	v,
		const LandmarkModel &	m,
		const ColorData &	colors
	)

Draw event of the 2D landmark graph.

Renders vertices and edges at current positions.

Parameters

v
m

Todo:: TODO: this should not know about actual Landmarks, we should pass actual vertex + edge positions as with the layouter.

Definition at line 56 of file graph_renderer.cpp.

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◆ init()

void GraphRenderer::init ( )

Definition at line 36 of file graph_renderer.cpp.

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◆ is_vert_pressed()

bool GraphRenderer::is_vert_pressed	(	const View &	view,
		glm::vec2	mouse
	)

Checks if some vertex was pressed.

Parameters

[in]	mouse	Mouse screen coordinates.
[out]	vert_ind	If the vertex was pressed it returns the index of the vertex, otherwise it is UB.

Returns: true If a vertex was pressed.; false If no vertex was pressed.

Definition at line 98 of file graph_renderer.cpp.

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◆ prepare_data()

void GraphRenderer::prepare_data	(	float	current_zoom,
		const LandmarkModel &	model,
		const ColorData &	colors
	)

private

Prepare data to render vertices and edges.

Fill VBOs and VAOs.

Parameters

current_zoom	Current zoom of the "camera".
model	Data source

Definition at line 117 of file graph_renderer.cpp.

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◆ prepare_edges()

void GraphRenderer::prepare_edges ( const LandmarkModel & model )

private

Prepare graph edges that are rendered as lines.

Parameters

model Data source

Definition at line 226 of file graph_renderer.cpp.

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◆ prepare_vertices()

void GraphRenderer::prepare_vertices	(	float	current_zoom,
		const LandmarkModel &	model,
		const ColorData &	colors
	)

private

Prepare graph vertices that are rendered as circles.

Parameters

current_zoom	Current zoom of the "camera".
model	Data source

Definition at line 167 of file graph_renderer.cpp.

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Member Data Documentation

◆ num_all_vtxs

int GraphRenderer::num_all_vtxs

private

Number of all vertices for rendering circles(graph vertices).

Definition at line 84 of file graph_renderer.h.

◆ num_all_vtxs_outlines

int GraphRenderer::num_all_vtxs_outlines

private

Definition at line 91 of file graph_renderer.h.

◆ shader_e

Shader GraphRenderer::shader_e

private

Definition at line 96 of file graph_renderer.h.

◆ shader_v

Shader GraphRenderer::shader_v

private

Definition at line 86 of file graph_renderer.h.

◆ shader_v_outline

Shader GraphRenderer::shader_v_outline

private

Definition at line 92 of file graph_renderer.h.

◆ VAO_e

unsigned int GraphRenderer::VAO_e

private

Definition at line 97 of file graph_renderer.h.

◆ VAO_v

unsigned int GraphRenderer::VAO_v

private

Definition at line 87 of file graph_renderer.h.

◆ VAO_v_outline

unsigned int GraphRenderer::VAO_v_outline

private

Definition at line 93 of file graph_renderer.h.

◆ VBO_e

unsigned int GraphRenderer::VBO_e

private

Definition at line 98 of file graph_renderer.h.

◆ VBO_v_col

unsigned int GraphRenderer::VBO_v_col

private

Definition at line 89 of file graph_renderer.h.

◆ VBO_v_pos

unsigned int GraphRenderer::VBO_v_pos

private

Definition at line 88 of file graph_renderer.h.

◆ VBO_v_pos_outline

unsigned int GraphRenderer::VBO_v_pos_outline

private

Definition at line 94 of file graph_renderer.h.

◆ vert_ind

size_t GraphRenderer::vert_ind

Index of the pressed vertex.

If the vertex was not pressed, it is UB.

Definition at line 42 of file graph_renderer.h.

◆ vert_pressed

bool GraphRenderer::vert_pressed

Flag indicating if a vertex was pressed.

Definition at line 40 of file graph_renderer.h.

◆ vertex_size

constexpr float GraphRenderer::vertex_size = 5.0f

staticconstexprprivate

Radius of the vertex used for comparing, if the landmark was pressed.

Definition at line 78 of file graph_renderer.h.

◆ vertices

std::vector<glm::vec2> GraphRenderer::vertices

private

Cached screen coordinates of the vertices.

Definition at line 81 of file graph_renderer.h.

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

src/graph_renderer.h
src/graph_renderer.cpp

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ GraphRenderer()

Member Function Documentation

◆ add_circle()

◆ draw()

◆ init()

◆ is_vert_pressed()

◆ prepare_data()

◆ prepare_edges()

◆ prepare_vertices()

Member Data Documentation

◆ num_all_vtxs

◆ num_all_vtxs_outlines

◆ shader_e

◆ shader_v

◆ shader_v_outline

◆ VAO_e

◆ VAO_v

◆ VAO_v_outline

◆ VBO_e

◆ VBO_v_col

◆ VBO_v_pos

◆ VBO_v_pos_outline

◆ vert_ind

◆ vert_pressed

◆ vertex_size

◆ vertices