GpuQuadraticCurveRender::Render Class Reference

Opengl Render tailored specifically for GpuQuadraticCurveRender test. It can render these 2d geometry:

• Points
• Lines
• Curves It only supports a material being a configurable emissive color.

More...

#include <Render.h>

List of all members.

Public Member Functions
	Render (void)
	Constructor.
	~Render (void)
	Destructor.
void	Initialize (int width, int height)
	Loads a default opengl configuration.
void	Reshape (int width, int height)
	Reshapes opengl viewport and initialize states.
void	BeginFrame (void)
	Begins render frame.
void	SetMaterial (float red, float green, float blue)
	Sets the only material: emissive color.
void	DrawPoints (const std::vector< Point > &points)
	Draws a vector of points in 2d with a fixed point size.
void	DrawLines (const std::vector< Line > &lines)
	Draws a vector of lines in 2d.
void	DrawTriangles (const std::vector< Point > &points, const std::vector< int > &indices)
	Draws a set of triangles.
void	DrawQuadraticSpline (const std::vector< Point > &points)
	Draws a quadratic spline using GLSL shaders.
void	EndFrame (void)
	Ends render frame.
void	UnProjectScreenPoint (const Point &screenPoint, double &x, double &y, double &z)
	unproject a point
float	GetPointSize (void) const
	gets point size

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Detailed Description

Opengl Render tailored specifically for GpuQuadraticCurveRender test. It can render these 2d geometry:

• Points
• Lines
• Curves It only supports a material being a configurable emissive color.

---

Member Function Documentation

void Render::DrawLines

(

const std::vector< Line > &

lines

)

Draws a vector of lines in 2d.

Parameters:

lines

the vector of lines

void Render::DrawPoints

(

const std::vector< Point > &

points

)

Draws a vector of points in 2d with a fixed point size.

Parameters:

points

the vector of points

void Render::DrawQuadraticSpline

(

const std::vector< Point > &

points

)

Draws a quadratic spline using GLSL shaders.

Parameters:

points

the control points

void Render::DrawTriangles	(	const std::vector< Point > &	points,
		const std::vector< int > &	indices
	)

Draws a set of triangles.

Parameters:

	points	vertices position
	indices	indices

float Render::GetPointSize

(

void

)

const

gets point size

Returns:

points size

void Render::Initialize	(	int	width,
		int	height
	)

Loads a default opengl configuration.

Parameters:

	width	render window width
	height	render window height

Note:

It's very ugly to have a separete method for initialization and don't use the constructor.

glewGetErrorString(err)

Todo:

it should be used RAII through boost smart pointers

void Render::Reshape	(	int	width,
		int	height
	)

Reshapes opengl viewport and initialize states.

Parameters:

	width	render window width
	height	render window height

void Render::SetMaterial	(	float	red,
		float	green,
		float	blue
	)

Sets the only material: emissive color.

Parameters:

	red	red channel
	green	green channel
	blue	blue channel

void Render::UnProjectScreenPoint	(	const Point &	screenPoint,
		double &	x,
		double &	y,
		double &	z
	)

unproject a point

Parameters:

	screenPoint	point to be unprojected
	x
	y
	z

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

• src/GpuQuadraticCurveRender/Render.h
• src/GpuQuadraticCurveRender/Render.cpp