proland::TextureLayer Class Reference
[ortho]

An OrthoGPUProducer layer to blend the tiles of two OrthoGPUProducer. More...

#include <TextureLayer.h>

List of all members.

Classes
struct	BlendParams
	Structure used to pass blend arguments to the framebuffer. More...
Public Member Functions
	TextureLayer (ptr< TileProducer > tiles, ptr< Program > program, std::string tilesSamplerName, BlendParams blend, int minDisplaylevel, bool storeTiles=false)
	Creates a new TextureLayer.
virtual	~TextureLayer ()
	Deletes this TextureLayer.
Protected Member Functions
	TextureLayer ()
	Creates an uninitialized TextureLayer.
void	init (ptr< TileProducer > tiles, ptr< Program > program, std::string tilesSamplerName, BlendParams blend, int minDisplaylevel, bool storeTiles=false)
	Initializes this TextureLayer.
Protected Attributes
ptr< Program >	program
	The Program to be used to transform the tiles produced by tiles before bending them into the tiles produced by the producer to which this layer belongs.
Private Attributes
ptr< TileProducer >	tiles
	The producer producing the tiles that must be blended into the tiles produced by the producer to which this layer belongs.
std::string	tilesSamplerName
	Name of the samplerTile uniform in program that is used to access the tiles produced by tiles.
BlendParams	blend
	The blend equations and functions to be used to blend the tiles together.
int	minDisplayLevel
	The quadtree level at which the display of this layer must start.

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Detailed Description

An OrthoGPUProducer layer to blend the tiles of two OrthoGPUProducer.

This layer modifies the tiles of its OrthoGPUProducer producer by blending into them the tiles produced by another OrthoGPUProducer, after they have been transformed via a GPU Program.

Authors:

Eric Bruneton, Antoine Begault, Guillaume Piolat

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Constructor & Destructor Documentation

proland::TextureLayer::TextureLayer	(	ptr< TileProducer >	tiles,
		ptr< Program >	program,
		std::string	tilesSamplerName,
		BlendParams	blend,
		int	minDisplaylevel,
		bool	storeTiles = false
	)

Creates a new TextureLayer.

Parameters:

	tiles	the producer producing the tiles that must be blended into the tiles produced by the producer to which this layer belongs. The 'tiles' producer must be a GPU producer, but the size and format of its tiles are arbitrary. Its maximum level can also be less than the maximum level of the producer to which this layer belongs (in this cas an automatic zoom is used to produce finer tiles).
	program	the Program to be used to transform the tiles produced by 'tiles' before bending them into the tiles produced by the producer to which this layer belongs.
	tilesSamplerName	name of the samplerTile uniform in 'program' that is used to access the tiles produced by 'tiles'.
	blend	the blend equations and functions to be used to blend the tiles together.
	minDisplayLevel	the quadtree level at which the display of this layer must start.

virtual proland::TextureLayer::~TextureLayer

(

)

[virtual]

Deletes this TextureLayer.

proland::TextureLayer::TextureLayer

(

)

[protected]

Creates an uninitialized TextureLayer.

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Member Function Documentation

void proland::TextureLayer::init	(	ptr< TileProducer >	tiles,
		ptr< Program >	program,
		std::string	tilesSamplerName,
		BlendParams	blend,
		int	minDisplaylevel,
		bool	storeTiles = false
	)			[protected]

Initializes this TextureLayer.

See TextureLayer.

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Member Data Documentation

BlendParams proland::TextureLayer::blend [private]

The blend equations and functions to be used to blend the tiles together.

int proland::TextureLayer::minDisplayLevel [private]

The quadtree level at which the display of this layer must start.

ptr<Program> proland::TextureLayer::program [protected]

The Program to be used to transform the tiles produced by tiles before bending them into the tiles produced by the producer to which this layer belongs.

ptr<TileProducer> proland::TextureLayer::tiles [private]

The producer producing the tiles that must be blended into the tiles produced by the producer to which this layer belongs.

Must be a GPU producer, but the size and format of its tiles are arbitrary.

std::string proland::TextureLayer::tilesSamplerName [private]

Name of the samplerTile uniform in program that is used to access the tiles produced by tiles.