Graphics class which draws information to the screen using OpenGL. More...

Inheritance diagram for GraphicsGL:

Public Member Functions
	GraphicsGL ()
virtual void	draw_pixels (const vector< ImageRef > &pix, float r, float g, float b, float a)
virtual void	draw_bbox (const BBox &bbox)
virtual void	draw_krap (const vector< Vector< 4 > > &spots, const Image< byte > &im, const BBox &box, int N, Vector< 4 > s)
virtual void	glDrawCross (const Vector< 2 > &p, int size)
virtual void	swap ()
virtual void	init (ImageRef log_ratios_size)
virtual	~GraphicsGL ()
virtual void	init (CVD::ImageRef size)=0
virtual void	draw_krap (const std::vector< TooN::Vector< 4 > > &spots, const CVD::Image< CVD::byte > &im, const BBox &box, int N, TooN::Vector< 4 > s=TooN::Ones *1e99)=0
virtual void	draw_pixels (const std::vector< CVD::ImageRef > &pix, float r, float g, float b, float a=1)=0
virtual void	glDrawCross (const TooN::Vector< 2 > &p, int size=3)=0
Private Member Functions
	GraphicsGL (const GraphicsGL &)
void	glDrawCircle (const Vector< 2 > &p, float r)
void	set_GL_zoom_size (ImageRef size, double scale)
Private Attributes
std::auto_ptr< GLWindow >	win
int	debug_window_zoom

Detailed Description

Graphics class which draws information to the screen using OpenGL.

Definition at line 119 of file multispot5_gui.cc.

Constructor & Destructor Documentation

GraphicsGL::GraphicsGL ( const GraphicsGL & ) [private]

GraphicsGL::GraphicsGL ( ) [inline]

Definition at line 172 of file multispot5_gui.cc.

        {
            debug_window_zoom = GV3::get<int>("debug.zoom", 3, 1);
        }

virtual GraphicsGL::~GraphicsGL ( ) [inline, virtual]

Definition at line 254 of file multispot5_gui.cc.

        {
        }

Member Function Documentation

void GraphicsGL::glDrawCircle	(	const Vector< 2 > &	p,
		float	r
	)		`[inline, private]`

Generate circle linesegments as pair of vertices for GL_LINES.

Parameters:

p	circle centre
r	circle radius

Definition at line 129 of file multispot5_gui.cc.

        {
            float theta=0;
            for(;;)
            {
                glVertex(p + r * makeVector(cos(theta), sin(theta)));
                theta +=0.01;
                if(theta > M_PI*2)
                    break;
                glVertex(p + r * makeVector(cos(theta), sin(theta)));
            }
            glVertex(p + r * makeVector(1, 0));
        }

void GraphicsGL::set_GL_zoom_size	(	ImageRef	size,
		double	scale
	)		`[inline, private]`

Set up a GL window so that glDrawPixels and glVertex line up and also so that glDrawPixels is zoomed.

Parameters:

size	Window size
scale	Zoom level

Definition at line 147 of file multispot5_gui.cc.

        {
            double right = size.x;
            double bottom = size.y;
            //double my_scale = scale;


            glMatrixMode(GL_MODELVIEW);
            glLoadIdentity();


            glMatrixMode(GL_PROJECTION);

            glLoadIdentity();
            glOrtho(0-.5, right-.5, bottom-.5, -.5, -1 , 1);    // If the origin is the top left 

            glRasterPos2f(-.5, -.5);

            // video is now the same way as upside down to graphics!
            glPixelZoom(scale, -scale);
        }

virtual void GraphicsGL::draw_pixels	(	const vector< ImageRef > &	pix,
		float	r,
		float	g,
		float	b,
		float	a
	)		`[inline, virtual]`

Definition at line 177 of file multispot5_gui.cc.

        {
            glColor4f(r, g, b, a);
            glPointSize(1.5);
            glBegin(GL_POINTS);
            glVertex(pix);
            glEnd();
        }

virtual void GraphicsGL::draw_bbox ( const BBox & bbox ) [inline, virtual]

Draw a bounding box.

Parameters:

bbox	Box corners

Implements FitSpotsGraphics.

Definition at line 186 of file multispot5_gui.cc.

References draw_bbox().

        {
			::draw_bbox(bbox);
        }

virtual void GraphicsGL::draw_krap	(	const vector< Vector< 4 > > &	spots,
		const Image< byte > &	im,
		const BBox &	box,
		int	N,
		Vector< 4 >	s
	)		`[inline, virtual]`

Definition at line 192 of file multispot5_gui.cc.

References draw_bbox().

        {

            glDrawPixels(im);
            glColor3f(1, 0, 0);
            draw_bbox(box);

            glLineWidth(0.3);
            glBegin(GL_LINES);
            for(unsigned int i=0; i < spots.size(); i++)
            {
                glColor4f(0, 1, 0, .3);

                if((int)i == N && s[0] != 1e99) 
                    glDrawCircle(s.slice<2, 2>(), s[1]);
                else
                    glDrawCircle(spots[i].slice<2, 2>(), spots[i][1]);
            }
            glEnd();

            glLineWidth(1.0);
            glBegin(GL_LINES);
            for(unsigned int i=0; i < spots.size(); i++)
            {
                glColor3f(1, 0, 0);
                if((int) i == N)
                    glColor3f(1, 1, 0);

                if((int)i == N && s[0] != 1e99) 
                    glDrawCross(s.slice<2, 2>(), 1);
                else
                    glDrawCross(spots[i].slice<2, 2>(), 1);
            }
            glEnd();

            glFlush();
        }

virtual void GraphicsGL::glDrawCross	(	const Vector< 2 > &	p,
		int	size
	)		`[inline, virtual]`

Definition at line 230 of file multispot5_gui.cc.

        {
            glVertex(p + makeVector(0,  size));
            glVertex(p + makeVector(0, -size));
            glVertex(p + makeVector( size, 0));
            glVertex(p + makeVector(-size, 0));
        }

virtual void GraphicsGL::swap ( ) [inline, virtual]

Swap buffers if double buffered.

Implements FitSpotsGraphics.

Definition at line 239 of file multispot5_gui.cc.

        {
            win->swap_buffers();
        }

virtual void GraphicsGL::init ( ImageRef log_ratios_size ) [inline, virtual]

Definition at line 245 of file multispot5_gui.cc.

        {
            win = auto_ptr<GLWindow>(new GLWindow(log_ratios_size*debug_window_zoom));
            set_GL_zoom_size(log_ratios_size, debug_window_zoom);
            glEnable(GL_BLEND);
            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
            glEnable(GL_LINE_SMOOTH);
        }

virtual void FitSpotsGraphics::init ( CVD::ImageRef size ) [pure virtual, inherited]

Initialize graphics.

Parameters:

size	Size of window for display

Implemented in NullGraphics.

virtual void FitSpotsGraphics::draw_krap	(	const std::vector< TooN::Vector< 4 > > &	spots,
		const CVD::Image< CVD::byte > &	im,
		const BBox &	box,
		int	N,
		TooN::Vector< 4 >	s = `TooN::Ones *1e99`
	)		`[pure virtual, inherited]`

Draw a bunch of stuff.

Parameters:

spots	List of spots to draw
im	Background image
box	Bounding box of region
N	Spot to highlight
s	Extra spot to draw as a cross

Implemented in NullGraphics.

virtual void FitSpotsGraphics::draw_pixels	(	const std::vector< CVD::ImageRef > &	pix,
		float	r,
		float	g,
		float	b,
		float	a = `1`
	)		`[pure virtual, inherited]`

Draw the pixel mask in an (r,g,b,a) tuple colour.

Parameters:

pix	mask
r	red
g	green
b	blue
a	alpha

Implemented in NullGraphics.

virtual void FitSpotsGraphics::glDrawCross	(	const TooN::Vector< 2 > &	p,
		int	size = `3`
	)		`[pure virtual, inherited]`

Draw a cross.

Parameters:

p	Position of cross
size	Size to draw cross

Implemented in NullGraphics.

Member Data Documentation

std::auto_ptr<GLWindow> GraphicsGL::win [private]

Definition at line 122 of file multispot5_gui.cc.

int GraphicsGL::debug_window_zoom [private]

Definition at line 124 of file multispot5_gui.cc.

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

multispot5_gui.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation